Complete CN Computer Networks in one shot | Semester Exam | Hindi

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Content in this video:
00:00 (Chapter-0: Introduction)- About this video

02:29 (Chapter-1: Basics)- What is Computer Networks, Goals, Application, Data Communication, Transmission Mode, Network Criteria, Connection Type, Topology, LAN, WAN, MAN, OSI Model, All Layer Duties, Transmission Media, Switching, ISDN.

55:25 (Chapter-2: Data Link Layer)- Random Access, ALOHA, Slotted ALOHA, CSMA, (CSMA/CD), (CSMA/CA), Sliding Window Protocol, Stop-and-Wait, Go-Back-N, Selective Repeat ARQ, Error Handling, Parity Check, Hamming Codes, CheckSum, CRC, Ethernet, Token Bus, Token Ring, FDDI, Manchester Encoding.

2:55:54 (Chapter-3: Network Layer)- Basics, IPv4 Header, IPv6 Header, ARP, RARP, ICMP, IGMP, IPv4 Addressing, Notations, Classful Addressing, Class A, Class B, Class C, Class D, Class E, Casting, Subnetting, Classless Addressing, Routing, Flooding, Intra-Domain Vs Inter-Domain, Distance Vector Routing, Two-Node Instability, Split Horizon, Link State Routing.

4:53:21 (Chapter-4: Transport Layer)- Basics, Port Number, Socket Addressing, TCP-Header, Three-way-Handshake, User Datagram Protocol, Data Compression, Cryptography, Symmetric Key, DES, Asymmetric Key, RSA Algorithm, Block-Transposition Cipher.

5:44:48 (Chapter-5: Application Layer)- E-Mail, SMTP, POP3/IMAP4, MIME, Web-Based Mail, FTP, WWW, Cookies, HTTP, DNS, Name Space, Telnet, ARPANET, X.25, SNMP, Voice over IP, RPC, Firewall, Repeater, Hub, Bridge, Switch, Router, Gateway.

[royking-ev]

🎯 Key Takeaways for quick navigation:

03:02 Networks *facilitate resource sharing, including hardware resources like printers. Wired and wireless connections are both possible within a network. The study will delve into various technologies supporting these functionalities.*
06:41 Decentralized *data storage is now centralized in databases for easy access, ensuring backup and recovery efficiency.*
08:06 Advantages *of computer networks extend to online meetings, seminars, classes, and even healthcare through video consultations and robotic surgeries.*
30:27 It's *essential to understand the responsibilities and duties of each layer, starting with the physical layer responsible for representing bits.*
40:35 The *session layer focuses on dialog control, establishing, maintaining, and synchronizing sessions between systems, ensuring smooth communication.*
47:12 Short-range *communication is efficient using radio waves due to their quick dissipation in the atmosphere.*
48:34 Understanding *the spectrum for communication, ranging from visible light to infrared, microwaves, and radio waves.*
54:22 Traditional *telephone services used analog ISDN for transmission, while the internet was used for data communication.*
55:00 The *decline in old technologies like ISDN is attributed to the rise of broadband and the latest technologies.*
55:28 Two *types of data link layer are introduced: the lower half, which includes the MAC address and media access control, and the upper half, which involves logical link control (LLC).*
57:57 Defining *Propagation Delay in general terms, representing it as Tp (time per distance upon speed), simplifying the understanding of this fundamental concept.*
01:00:17 Introduces *the concept of cold transmission time and explains that the first drop of water may take 5 minutes to reach when the system starts.*
01:00:57 Expands *on the example of a game starting at **12:00** and the time it takes for the first and last drops of water to reach the destination, relating it to transmission propagation delay.*
01:03:11 In *random access, all stations are independent; no station is superior or assigned to control others. It follows a decentralized architecture, and there is no master architecture. Random access allows stations to transmit without permission, emphasizing equal fairness.*
01:03:38 Random *access protocols don't dictate who transmits next; it's a random decision. The system doesn't reveal successful or failed transmissions, and the next transmitting station is unpredictable.*
01:05:41 Understanding *random access involves creating diagrams for different scenarios, a crucial skill for exams. The process involves starting transmission, checking the medium for ongoing transmissions, and making decisions based on the presence of other transmissions.*
01:14:47 When *discussing channel bandwidth, the speaker mentions a 200-byte frame with a bandwidth of 200kb. The unitary method is applied to calculate transmission time.*
01:28:11 Probability *mechanism: Stations set a random number; if it's less than a predefined probability, they transmit. This minimizes collisions.*
01:32:38 Voltage *Level Identification for Collision Detection: In case of collision, voltage levels vary. Use identification methods like persistence and resistance. Utilize components like persistence, resistance, and parasitism for detection. Successful transmission is achieved without acknowledgment if no collision is detected during transmission.*
01:43:50 If *corruption or errors are detected in a frame at the receiver, the frame is silently discarded, and the negative acknowledgment is not explicitly sent.*
01:47:18 The *concept of queuing delay is introduced, highlighting the potential waiting time at switching devices like routers and switches.*
01:48:53 Factors *like packet size, transmission time, propagation time, and acknowledgment time are crucial in calculating the efficiency of data transmission.*
01:50:54 The *formula considers the transmission time of data, propagation time, acknowledgment time, and back propagation time, treating them as essentially the same.*
01:51:22 The *total time formula, considering all factors, provides a comprehensive approach to calculating the time required for transmitting data in a network.*
01:54:46 Demonstrating *the sliding window mechanism in Go Back N and its role in efficient packet transmission.*
02:16:32 Discussing *the trade-off between cost and error detection capabilities, the video highlights the minimum Hamming distance as a crucial property for effective error detection in different code words.*
02:21:14 Bit *data word contains original data, and redundancy is added using Reed-Muller code with parameters k = 2, power r - r-1. This forms a game to determine overall cost.*
02:28:16 Explains *the process of checksum verification, emphasizing the importance of comparing the calculated sum at the receiver's end.*
02:32:31 Introduction *to Cyclic Redundancy Check (CRC) in error detection and its basic concept.*
02:32:59 Circular *right shift is demonstrated by shifting each bit one position to the right. This creates a cyclic code, representing logical operations like checksums.*
02:33:25 Checksums, *used in CRC (Cyclic Redundancy Check), involve sending a sum with data to verify integrity. Division cannot be applied directly, but a reminder mechanism is employed.*
02:36:36 Perfectly *divisible numbers and remainders play a crucial role in error detection in network communication.*
02:47:54 When *sending data, there is a logical restriction to not send more than 1500 bytes at once. The data link layer includes a trailer, like CRC, for cyclic redundancy check.*
02:52:00 Token *Passing mechanism in Token Ring was deterministic, suitable for real-time applications, ensuring collision-free communication.*
02:59:09 IP *version 4 (IPv4) is the most popular variant of the Internet Protocol, and its detailed study is crucial in networking courses.*
03:00:46 Various *fields in the header address different aspects like type of connection, general tariff, and best-effort delivery.*
03:09:40 The *maximum number in a 16-bit field is 65535, representing the maximum data a packet can carry. Payload length calculation doesn't involve storing a direct number.*
03:24:59 Understanding *the importance of the additional 20 bits, knowing the address of intermediate routers, and using 32-bit addresses for independent routers allow for effective routing.*
03:33:14 Additional *protocols like ARP and ICMP are necessary for resolving local addresses and providing information during system boot.*
03:36:11 Reverse *Address Resolution Protocol (RARP) is introduced, addressing how a system discovers its IP when connected to a network for the first time.*
03:41:13 ICMP *is also useful in query reporting, allowing routers to communicate errors, diagnose issues, and enable network managers and users to pinpoint and address network problems effectively.*
03:43:46 Router *communication through ICMP and timestamping can be utilized to measure the distance and processing delay of routers in a network.*
03:46:19 Reference *to the transition from IPv4 to IPv6, highlighting the vast number of IPv6 addresses available.*
03:50:20 Using *a 32-bit address, divided into prefix (network ID) and suffix (host ID) to identify systems within networks.*
03:51:02 Drawing *an analogy to telephone numbers, explaining the concept of network and host identification within an address.*
03:54:38 Class *C networks explained, with a focus on smaller villages with fewer IP addresses.*
03:58:34 Hosts *in Class A have 24 bits, resulting in 2^24 combinations minus 2 reserved IDs.*
03:58:49 Host *IDs have an All-Zero ID reserved for network and an All-One ID reserved for broadcasting.*
04:06:39 Understanding *the concept of limited broadcast and direct broadcast is crucial in networking. Use the total network ID in the destination to avoid complications within the local network.*
04:18:42 Discussing *CIDR notation in detail, calculating the number of addresses, and understanding the network length.*
04:21:14 Highlighting *the application of the "NOT of Mask" method for calculating the number of addresses, emphasizing the direct calculation approach.*
04:27:09 Emphasizes *the need for periodic updates in dynamic routing, drawing parallels with changing train schedules and the impact of events like the railway budget.*
04:27:23 Discusses *the dynamic nature of industries like airlines and stock exchanges, where rates and schedules change frequently.*
04:30:42 Explains *intra-domain and inter-domain concepts, emphasizing the need for decentralized, autonomous systems in managing the internet.*
04:35:03 Routing *algorithms may consider different costs, such as time-based or distance-based, depending on the specific requirements.*

Made with HARPA AI

[Jayant.maheshwari]

🎯 Key Takeaways for quick navigation:

01:11 📘 *Understanding the Standard Syllabus*
03:02 🌐 *Basics of Network Connections*
06:01 🎯 *Goal of Computer Networks*
06:41 📊 *Decentralized vs. Centralized Data Storage*
08:21 🌐 *Governance and Public Services Online*
09:17 📡 *Data Communication Basics*
*- Communication occurs in one direction at a time.*
*- Example: Like a two-way road where traffic flows in both directions concurrently.*
14:00 🛣️ *Networking Criteria for Design*
*- Performance: Speed, capacity, and bandwidth considerations.*
*- Reliability: The network's ability to overcome failures and resolve issues strategically.*
16:22 🌐 *Types of Connections: Point-to-Point and Multipoint*
21:17 🔗 *Understanding Ring Topology*
22:12 🔄 *Conclusion on Topology Types*
25:35 🌐 *Importance of Remembering OSI Model Layers*
25:48 🌐 *Networking Layer Overview*
26:03 🏛️ *Protocol and Approach*
26:18 🌐 *Network Layer Responsibilities*
26:31 📡 *Internet and Transport Layers*
26:45 🚦 *Rules and Regulations in Models*
26:57 🔄 *Evolution of Protocols*
27:12 📚 *Importance of Networking Layer Understanding*
27:27 🔗 *Device Communication Basics*
27:41 📦 *Encapsulation Concept*
28:36 🔄 *Continuous Header Removal*
29:20 📞 *Direct Communication Approach*
30:42 🌐 *Point-to-Point and Multi-Point Connections*
31:23 🚀 *Handling Data Rate and Bandwidth*
32:02 🔗 *Network Topology*
32:44 🔄 *Handling Communication Modes*
33:13 📡 *Data Link Layer Introduction*
34:05 🔄 *Data Link Layer: Access Control*
36:11 🌐 *Network Layer - Source to Destination Delivery:*
36:53 🌐 *Network Layer - Routing Mechanism:*
38:17 🌐 *Network Layer - Service Point and Addressing:*
38:43 🌐 *Network Layer - Segmentation and Reassembly:*
40:06 🔄 *Transport Layer Functions*
40:35 🤝 *Session Layer Overview*
41:31 🔍 *Presentation Layer Significance*
42:11 📜 *Encryption and Decryption in Presentation Layer*
42:25 📊 *Data Compression*
43:34 📡 *Handling Various Services in the Application Layer*
44:27 🌐 *Types of Wired Transmission Media: Twisted Pair*
45:36 🌐 *Coaxial and Optical Fiber Overview*
47:40 🌐 *Sky Propagation - Ionosphere Reflection*
48:21 🌐 *Line of Sight Propagation for Short-Range*
50:00 📡 *Advantages and Disadvantages of Circuit Switching*
51:36 🔄 *Traditional Approaches to Capacity Division*
54:34 📞 *BRI and PRI in Circuit Switching*
55:00 🌐 *Data Link Layer Basics*
56:23 🛠️ *Detailed Responsibilities of Logical Link Control*
57:29 📡 *Random Access Protocols*
57:57 🌐 *Propagation Delay in Networking*
01:00:01 🔄 *Completion Time Calculation in Networking*
01:01:22 📡 *Understanding Propagation Delay and Transmission Time*
01:04:46 📡 *Understanding Aloha Protocol Basics*
01:05:12 🌐 *Pure Aloha vs. Slotted Aloha*
01:13:53 ⏱️ *Vulnerable Time Calculation*
01:16:50 🔄 *Handling Collisions in ALOHA*
01:23:13 🎮 *Game Scenario: Collision and Data Transmission*
01:26:22 🔗 *Persistence Method in CSMA*
01:26:35 🌐 *Continuous Sensing Approach*
01:27:46 ⚖️ *Comparison: Continuous vs. Non-Persistent*
01:28:11 🎲 *Probability Mechanism for Transmission*
01:33:57 🔄 *Understanding Collision Detection in CSMA/CD*
01:34:54 🔄 *Introducing Collision Detection Mechanism in CSMA/CA*
01:35:07 🔄 *Understanding Collision Avoidance in CSMA/CA*
01:37:20 🔄 *Error Control Mechanisms in Data Transmission*
01:38:02 🛑 *Dealing with Collisions and Acknowledgment Mechanism*
01:40:33 🔄 *Sliding Window Protocol Overview*
01:41:01 🛑 *Stop-and-Wait Protocol Operation*
01:43:36 🔄 *Flow Control in Networking*
01:44:03 🛠️ *Error Handling in Data Transmission*
01:45:26 📝 *Numbering and Alternating Acknowledgments*
01:47:18 🌐 *Understanding Propagation Delay and Transmission Delay*
01:47:45 📶 *Bandwidth and Its Role in Data Transmission*
01:48:13 🔄 *Introduction to Queuing Delays in Networking*
01:54:18 📶 *Sliding Window Mechanism*
01:55:12 🔄 *Dynamic Window Size Calculation*
01:56:09 🔄 *Sender's Temporary Numbering Logic*
01:56:36 🔄 *Capacity Limitations and Selective Sending*
01:58:54 ↩️ *Go-Back-N Protocol*
02:00:32 🕰️ *Understanding Transmission Timers*
02:00:44 🔄 *Window Size and Efficiency*
02:00:58 🤔 *Acknowledgment Efficiency Mechanism*
02:01:26 🔄 *Acknowledgment Optimization*
02:01:39 🔄 *Transmitting Multiple Packets*
02:02:33 ⚙️ *Bit Count Calculation*
02:03:41 🌐 *Selective Repeat ARQ explained*
*- Criticizes Stop-and-Wait for being too conservative.*
02:10:16 🚥 *Impact of Data Speed on Errors*
02:11:43 ⚙️ *Forming Code Words*
02:11:57 ➕ *Adding Redundancy for Error Detection*
02:12:12 🔒 *Error Detection: Exclusive OR Operation*
02:12:26 🔍 *Pair Checking for Error Detection*
02:12:53 💡 *Redundancy and Code Words*
02:14:01 🤔 *Understanding Even Parity*
02:14:12 🔄 *Setting Even Parity*
02:14:54 💡 *Understanding Hamming Distance*
02:15:22 🤔 *Evaluating System Properties*
02:15:50 🔄 *Challenges in Error Detection*
02:16:04 🔍 *Conclusion on Error Detection*
02:17:01 🔄 *Error Detection and Correction Basics*
02:21:28 🎲 *Hamming Code Example and Cost Calculation*
02:21:53 🧮 *Calculating Costs and Making Policies in Hamming Code*
02:22:08 🎓 *Application of Policies and Practical Example*
02:22:22 🔄 *Dynamic Data Length in Hamming Code*
02:23:57 📜 *Calculating Parity in Hamming Code - Example*
*- Verifying and correcting errors in the received data.*
02:27:22 🤔 *Checksum Concept*
*- Use of checksums to verify information integrity.*
02:28:02 🧠 *Introduction to Checksum Calculation*
02:29:22 🔍 *Problem with Binary Representation in Checksum*
02:29:37 🔄 *Wrapping Technique in Checksum*
02:30:03 ⚙️ *Implementing Modular Arithmetic in Checksum*
02:33:12 🔍 *Checksum Logic in CRC*
02:39:07 🤖 *Applying Cubes in Multiplication*
02:42:53 📡 *Wi-Fi and Local Level Connectivity*
02:45:42 📏 *Ethernet Frame Length*
02:47:10 📏 *Maximum Frame Length Revisited*
02:47:54 🛡️ *Real-Time Processing Considerations*
02:49:16 🕰️ *Token Bus Topology and Operation*
02:53:18 ⚙️ *Signal Representation and Manchester Coding*
02:54:01 🌐 *Networking Basics and Signal Creation*
02:56:29 🛣️ *Role of Routing in Source-to-Destination Delivery*
02:57:15 🌐 *Role of Address and Mechanism in Data Delivery*
02:59:23 🧮 *IPv4 Header Structure Details*
03:01:15 🔄 *Reliability with TCP/IP Protocol Suite*
03:01:46 🚚 *Understanding IP (Internet Protocol) and its reliability in comparison to a truck delivery*
03:08:04 💡 *Protocols and Service Usage*
03:08:46 💼 *Protocol Demands and Examples*
03:09:01 📊 *Fields in Data Grams: Length Fields*
03:09:40 📏 *Calculating Payload Length*
03:09:55 🛠️ *Header Length Calculation*
03:10:24 📡 *Address Masking Technique*
03:12:29 🔄 *Reassembly Process and Offset Calculation*
03:14:46 🧮 *Scaling Technique for Offset Adjustment*
03:17:19 📦 *Dealing with Fragmentation Challenges*
03:17:59 ⚙️ *Understanding Fragmentation Offset and More*
03:19:19 🌐 *Packet Routing Basics*
03:19:32 🧠 *Logical Time-to-Live and Packet Charging*
03:20:00 🛑 *Handling Limited Time and Maximum Hops*
03:20:28 🛣️ *Setting TTL for Efficient Packet Transmission*
03:20:53 🚨 *Error Handling and Resending*
03:22:30 🕵️ *Header and Payload Check in Networking*
03:22:58 🛡️ *Security Concerns in Header Handling*
03:25:26 🖥️ *Addressing and Record Route in Networking*
03:26:49 🔄 *Strict Source Route vs. Loose Source Route*
03:27:15 🕰️ *Importance of Time Stamping*
03:28:10 🧩 *IPv6 Header Overview*
03:31:06 🛡️ *IPv6 Extension Headers Details*
03:32:31 🌐 *Address Resolution Protocol (ARP)*
03:37:05 🔄 *Reverse Address Resolution Protocol (RARP) Explained*
03:37:42 🌐 *Internet Control Message Protocol (ICMP) Functionality*
03:38:22 🛠️ *Internet Control Message Protocol (ICMP) Working*
03:38:52 🚨 *ICMP Error Reporting Examples*
03:39:35 📡 *IP Packet Discard Process*
03:42:35 🌐 *IP Address and Router Failure Handling*
03:43:46 🌐 *Router Functions and Timestamping*
03:45:36 🌐 *IP Addressing Basics*
03:47:52 🔄 *Changing IP Addresses*
03:49:53 🌐 *Binary Combinations and Network Identification*
03:50:33 🌐 *Classful Addressing Mechanism*
03:52:13 🌐 *IP Addressing Basics*
03:52:40 🌍 *Classless Addressing*
03:56:29 🌐 *Class A IP Address Details:*
03:58:22 💼 *Class C Network ID and Practical Range:*
03:58:49 🖥️ *Calculating Host ID Bits in Class C:*
03:59:02 📢 *Reserving Bits for Network ID and Broadcast:*
04:00:08 🌐 *Subnet Calculation in Class B*
04:02:04 🌐 *Class D for Multicasting*
04:04:12 📡 *Address Casting in Computer Networks*
04:04:56 🌐 *Broadcasting in Computer Networks*
04:07:35 📡 *Unicast and Broadcast*
04:07:48 🌐 *Multicasting and Subnetting*
04:09:44 🌐 *Broadcast Challenges*
04:10:12 📡 *Subnet Broadcasting Strategy*
04:11:11 📶 *Class C Subnetting Example*
04:12:48 📡 *Subnetting and Allocatable Addresses*

Made with HARPA AI

[kind]

Introduction to Computer Networks ✅ Yes 02:04 - 08:31
Importance of Communication & Resource Sharing ✅ Yes 06:11 - 08:31
Network Topologies (Star, Hierarchical, etc.) ✅ Yes 19:12 - 21:14
OSI Model ✅ Yes 25:05 - 26:56
Physical Layer ✅ Yes 31:08 - 33:07
Data Link Layer (Functions & Protocols) ✅ Yes 33:07 - 37:08
Transport Layer (Responsibilities) ✅ Yes 37:08 - 39:11
Transmission Mediums (Coaxial, Optical Fiber, Radio, Microwave, etc.) ✅ Yes 45:07 - 48:47
Multiple Access Protocols (ALOHA, CSMA/CD, etc.) ✅ Yes 1:05:52 - 1:35:30
Sliding Window Protocol ✅ Yes 56:26 - 1:00:06
Stop & Wait Protocol ✅ Yes 1:41:03 - 1:42:52
Error Detection & Correction (CRC, Hamming Code, Checksum, Parity, etc.) ✅ Yes 2:08:59 - 2:31:41
Ethernet (Frame Structure, Technology) ✅ Yes 2:39:18 - 2:44:56
Token Ring & FDDI ✅ Yes 2:48:39 - 2:50:27
Network Layer (Routing, Packet Forwarding, IP, etc.) ✅ Yes 2:56:02 - 3:19:03
IP Addressing & Header (IPv4, IPv6, Fragmentation, Routing) ✅ Yes 3:01:52 - 3:19:03

[sudhanshurajput]

Aise teachers ki wjha se hi toh hum jaise bacche aache no. Laa paate hai thanks ❤

[nanogyanx]

00:02 Complete CN Computer Networks in one shot for semester exams
02:04 Computer network is a telecommunication network for exchanging data wirelessly and wired.
06:11 Importance of communication and resource sharing in computer networks
08:31 Computer networks involve data communication and various components.
13:04 Computer network communication modes: half-duplex, full-duplex
15:05 Key concepts in computer networks and importance of security
19:12 Explaining basic concepts of Bus and Mesh topologies
21:14 Ring Topology allows data to circulate in a circular fashion.
25:05 The OSI model divides computer networks into seven layers with specific duties for each layer.
26:56 Understanding the OSI model and its significance in networking.
31:08 Understanding the physical layer in computer networks
33:07 Data Link Layer responsibilities and protocols
37:08 Understanding the responsibilities of the Transport Layer
39:11 Explanation of data gram, frame, segmentation, congestion control, and error control
43:07 Understanding the layered approach in computer networks
45:07 Coaxial cable and optical fiber for network connections.
48:47 Explanation of Infrared, Microwave, Radio Waves, and Communication
50:50 Reservation and division techniques in networking
54:31 Understanding different connection types and speed interfaces in computer networks.
56:26 Understanding sliding window protocol and access control
1:00:06 Understanding transmission time in computer networks
1:02:02 Understanding packet transmission and random access protocols in computer networks
1:05:52 Understanding data transmission and collision detection in computer networks
1:07:41 Network congestion and collision resolution technique explained
1:11:42 Understanding network transmission time and collisions
1:13:45 Understanding vulnerable time in computer networks
1:17:45 Collisions and variants in Aloha protocol
1:19:33 Understand the concept of time slots and efficiency in network transmission.
1:23:20 Understanding data transmission and collisions in computer networks
1:25:19 Understanding persistence methods in computer networks.
1:29:18 Understanding priority and approach in data transmission
1:31:26 Transmission rules to avoid collisions and ensure efficient data transfer
1:35:30 Explanation of Collision Avoidance in CSM
1:37:24 Flow control helps manage data transmission efficiency.
1:41:03 Understanding Stop and Wait protocol in data link layer
1:42:52 Explanation of handling packet acknowledgment and retransmission
1:46:32 Understanding packet transmission and efficiency calculation
1:48:17 Understanding delays in computer networks
1:52:08 Discussing efficiency and throughput calculations in computer networks
1:54:21 Understanding data packet transmission and acknowledgment in computer networks.
1:58:01 Concept of window size in computer networks
1:59:56 Understanding the mechanism of acknowledgment in computer networks.
2:03:37 Explanation of retransmissions and error handling in computer networks
2:05:27 Selective Repeat is efficient and practical
2:08:59 Errors in computer networks: single bit and burst errors.
2:10:50 Understanding Humming Distance and Error Detection
2:14:41 Understanding even and odd parity in error detection
2:16:34 Overview of error detection and correction in computer networks
2:20:24 Explanation of Hamming Codes for error detection and correction
2:22:17 Explanation of parity bits in computer networks
2:25:56 Checksum helps in detecting errors in data transmission
2:27:48 Understanding data as numbers and using checksum for error detection
2:31:41 Understanding cyclic codes and CRC in computer networks
2:33:40 Explaining division and remainder in computer networks
2:37:21 Binary numbers can be represented as corresponding polynomials
2:39:18 Understanding CRC and Ethernet technology
2:43:08 Explanation of Ethernet frame structure
2:44:56 Ethernet frame structure and length explained
2:48:39 Token bus and token ring networks in computer networking
2:50:27 Token Ring and FDDI network technologies in computer networks
2:54:17 Understanding the concept of going from bottom to top in computer networks
2:56:02 Network layer responsible for source to destination delivery.
2:59:53 Understanding the range and structure of headers in computer networks
3:01:52 Understanding IP versioning and header length in TCP
3:05:42 Understanding IP's stubbornness and Service Type
3:07:28 Understanding protocol priorities and implications on network performance
3:11:25 Understanding fragmentation in computer networks
3:13:23 Understanding fragmentation offset and its calculation
3:17:15 Understanding packet fragmentation and routing in computer networks
3:19:03 Routers charge and control packet forwarding
3:22:43 Data link layer header checksum and security
3:24:32 Understanding the usage of 40-bit field in computer networks

[shubhamkumar]

I am watching this for my semester exam. The content taught by the sir is really great. Thank you so much sir for your great effort for providing this level of content.

[businesswolf]

Key Takeaways for quick navigation:

01:11 Understanding the Standard Syllabus
03:02 Basics of Network Connections
06:01 Goal of Computer Networks
06:41 Decentralized vs. Centralized Data Storage
08:21 Governance and Public Services Online
09:17 Data Communication Basics
- Communication occurs in one direction at a time.
- Example: Like a two-way road where traffic flows in both directions concurrently.
14:00 Networking Criteria for Design
- Performance: Speed, capacity, and bandwidth considerations.
- Reliability: The network's ability to overcome failures and resolve issues strategically.
16:22 Types of Connections: Point-to-Point and Multipoint
21:17 Understanding Ring Topology
22:12 Conclusion on Topology Types
25:35 Importance of Remembering OSI Model Layers
25:48 Networking Layer Overview
26:03 Protocol and Approach
26:18 Network Layer Responsibilities
26:31 Internet and Transport Layers
26:45 Rules and Regulations in Models
26:57 Evolution of Protocols
27:12 Importance of Networking Layer Understanding
27:27 Device Communication Basics
27:41 Encapsulation Concept
28:36 Continuous Header Removal
29:20 Direct Communication Approach
30:42 Point-to-Point and Multi-Point Connections
31:23 Handling Data Rate and Bandwidth
32:02 Network Topology
32:44 Handling Communication Modes
33:13 Data Link Layer Introduction
34:05 Data Link Layer: Access Control
36:11 Network Layer - Source to Destination Delivery:
36:53 Network Layer - Routing Mechanism:
38:17 Network Layer - Service Point and Addressing:
38:43 Network Layer - Segmentation and Reassembly:
40:06 Transport Layer Functions
40:35 Session Layer Overview
41:31 Presentation Layer Significance
42:11 Encryption and Decryption in Presentation Layer
42:25 Data Compression
43:34 Handling Various Services in the Application Layer
44:27 Types of Wired Transmission Media: Twisted Pair
45:36 Coaxial and Optical Fiber Overview
47:40 Sky Propagation - Ionosphere Reflection
48:21 Line of Sight Propagation for Short-Range
50:00 Advantages and Disadvantages of Circuit Switching
51:36 Traditional Approaches to Capacity Division
54:34 BRI and PRI in Circuit Switching
55:00 Data Link Layer Basics
56:23 Detailed Responsibilities of Logical Link Control
57:29 Random Access Protocols
57:57 Propagation Delay in Networking
01:00:01 Completion Time Calculation in Networking
01:01:22 Understanding Propagation Delay and Transmission Time
01:04:46 Understanding Aloha Protocol Basics
01:05:12 Pure Aloha vs. Slotted Aloha
01:13:53 Vulnerable Time Calculation
01:16:50 Handling Collisions in ALOHA
01:23:13 Game Scenario: Collision and Data Transmission
01:26:22 Persistence Method in CSMA
01:26:35 Continuous Sensing Approach
01:27:46 Comparison: Continuous vs. Non-Persistent
01:28:11 Probability Mechanism for Transmission
01:33:57 Understanding Collision Detection in CSMA/CD
01:34:54 Introducing Collision Detection Mechanism in CSMA/CA
01:35:07 Understanding Collision Avoidance in CSMA/CA
01:37:20 Error Control Mechanisms in Data Transmission
01:38:02 Dealing with Collisions and Acknowledgment Mechanism
01:40:33 Sliding Window Protocol Overview
01:41:01 Stop-and-Wait Protocol Operation
01:43:36 Flow Control in Networking
01:44:03 Error Handling in Data Transmission
01:45:26 Numbering and Alternating Acknowledgments
01:47:18 Understanding Propagation Delay and Transmission Delay
01:47:45 Bandwidth and Its Role in Data Transmission
01:48:13 Introduction to Queuing Delays in Networking
01:54:18 Sliding Window Mechanism
01:55:12 Dynamic Window Size Calculation
01:56:09 Sender's Temporary Numbering Logic
01:56:36 Capacity Limitations and Selective Sending
01:58:54 Go-Back-N Protocol
02:00:32 Understanding Transmission Timers
02:00:44 Window Size and Efficiency
02:00:58 Acknowledgment Efficiency Mechanism
02:01:26 Acknowledgment Optimization
02:01:39 Transmitting Multiple Packets
02:02:33 Bit Count Calculation
02:03:41 Selective Repeat ARQ explained
- Criticizes Stop-and-Wait for being too conservative.
02:10:16 Impact of Data Speed on Errors
02:11:43 Forming Code Words
02:11:57 Adding Redundancy for Error Detection
02:12:12 Error Detection: Exclusive OR Operation
02:12:26 Pair Checking for Error Detection
02:12:53 Redundancy and Code Words
02:14:01 Understanding Even Parity
02:14:12 Setting Even Parity
02:14:54 Understanding Hamming Distance
02:15:22 Evaluating System Properties
02:15:50 Challenges in Error Detection
02:16:04 Conclusion on Error Detection
02:17:01 Error Detection and Correction Basics
02:21:28 Hamming Code Example and Cost Calculation
02:21:53 Calculating Costs and Making Policies in Hamming Code
02:22:08 Application of Policies and Practical Example
02:22:22 Dynamic Data Length in Hamming Code
02:23:57 Calculating Parity in Hamming Code - Example
- Verifying and correcting errors in the received data.
02:27:22 Checksum Concept
- Use of checksums to verify information integrity.
02:28:02 Introduction to Checksum Calculation
02:29:22 Problem with Binary Representation in Checksum
02:29:37 Wrapping Technique in Checksum
02:30:03 Implementing Modular Arithmetic in Checksum
02:33:12 Checksum Logic in CRC
02:39:07 Applying Cubes in Multiplication
02:42:53 Wi-Fi and Local Level Connectivity
02:45:42 Ethernet Frame Length
02:47:10 Maximum Frame Length Revisited
02:47:54 Real-Time Processing Considerations
02:49:16 Token Bus Topology and Operation
02:53:18 Signal Representation and Manchester Coding
02:54:01 Networking Basics and Signal Creation
02:56:29 Role of Routing in Source-to-Destination Delivery
02:57:15 Role of Address and Mechanism in Data Delivery
02:59:23 IPv4 Header Structure Details
03:01:15 Reliability with TCP/IP Protocol Suite
03:01:46 Understanding IP (Internet Protocol) and its reliability in comparison to a truck delivery
03:08:04 Protocols and Service Usage
03:08:46 Protocol Demands and Examples
03:09:01 Fields in Data Grams: Length Fields
03:09:40 Calculating Payload Length
03:09:55 Header Length Calculation
03:10:24 Address Masking Technique
03:12:29 Reassembly Process and Offset Calculation
03:14:46 Scaling Technique for Offset Adjustment
03:17:19 Dealing with Fragmentation Challenges
03:17:59 Understanding Fragmentation Offset and More
03:19:19 Packet Routing Basics
03:19:32 Logical Time-to-Live and Packet Charging
03:20:00 Handling Limited Time and Maximum Hops
03:20:28 Setting TTL for Efficient Packet Transmission
03:20:53 Error Handling and Resending
03:22:30 Header and Payload Check in Networking
03:22:58 Security Concerns in Header Handling
03:25:26 Addressing and Record Route in Networking
03:26:49 Strict Source Route vs. Loose Source Route
03:27:15 Importance of Time Stamping
03:28:10 IPv6 Header Overview
03:31:06 IPv6 Extension Headers Details
03:32:31 Address Resolution Protocol (ARP)
03:37:05 Reverse Address Resolution Protocol (RARP) Explained
03:37:42 Internet Control Message Protocol (ICMP) Functionality
03:38:22 Internet Control Message Protocol (ICMP) Working
03:38:52 ICMP Error Reporting Examples
03:39:35 IP Packet Discard Process
03:42:35 IP Address and Router Failure Handling
03:43:46 Router Functions and Timestamping
03:45:36 IP Addressing Basics
03:47:52 Changing IP Addresses
03:49:53 Binary Combinations and Network Identification
03:50:33 Classful Addressing Mechanism
03:52:13 IP Addressing Basics
03:52:40 Classless Addressing
03:56:29 Class A IP Address Details:
03:58:22 Class C Network ID and Practical Range:
03:58:49 Calculating Host ID Bits in Class C:
03:59:02 Reserving Bits for Network ID and Broadcast:
04:00:08 Subnet Calculation in Class B
04:02:04 Class D for Multicasting
04:04:12 Address Casting in Computer Networks
04:04:56 Broadcasting in Computer Networks
04:07:35 Unicast and Broadcast
04:07:48 Multicasting and Subnetting
04:09:44 Broadcast Challenges
04:10:12 Subnet Broadcasting Strategy
04:11:11 Class C Subnetting Example
04:12:48 Subnetting and Allocatable Addresses

[fit_aryan]

Key Takeaways for quick navigation:

01:11 Understanding the Standard Syllabus
03:02 Basics of Network Connections
06:01 Goal of Computer Networks
06:41 Decentralized vs. Centralized Data Storage
08:21 Governance and Public Services Online
09:17 Data Communication Basics
- Communication occurs in one direction at a time.
- Example: Like a two-way road where traffic flows in both directions concurrently.
14:00 Networking Criteria for Design
- Performance: Speed, capacity, and bandwidth considerations.
- Reliability: The network's ability to overcome failures and resolve issues strategically.
16:22 Types of Connections: Point-to-Point and Multipoint
21:17 Understanding Ring Topology
22:12 Conclusion on Topology Types
25:35 Importance of Remembering OSI Model Layers
25:48 Networking Layer Overview
26:03 Protocol and Approach
26:18 Network Layer Responsibilities
26:31 Internet and Transport Layers
26:45 Rules and Regulations in Models
26:57 Evolution of Protocols
27:12 Importance of Networking Layer Understanding
27:27 Device Communication Basics
27:41 Encapsulation Concept
28:36 Continuous Header Removal
29:20 Direct Communication Approach
30:42 Point-to-Point and Multi-Point Connections
31:23 Handling Data Rate and Bandwidth
32:02 Network Topology
32:44 Handling Communication Modes
33:13 Data Link Layer Introduction
34:05 Data Link Layer: Access Control
36:11 Network Layer - Source to Destination Delivery:
36:53 Network Layer - Routing Mechanism:
38:17 Network Layer - Service Point and Addressing:
38:43 Network Layer - Segmentation and Reassembly:
40:06 Transport Layer Functions
40:35 Session Layer Overview
41:31 Presentation Layer Significance
42:11 Encryption and Decryption in Presentation Layer
42:25 Data Compression
43:34 Handling Various Services in the Application Layer
44:27 Types of Wired Transmission Media: Twisted Pair
45:36 Coaxial and Optical Fiber Overview
47:40 Sky Propagation - Ionosphere Reflection
48:21 Line of Sight Propagation for Short-Range
50:00 Advantages and Disadvantages of Circuit Switching
51:36 Traditional Approaches to Capacity Division
54:34 BRI and PRI in Circuit Switching
55:00 Data Link Layer Basics
56:23 Detailed Responsibilities of Logical Link Control
57:29 Random Access Protocols
57:57 Propagation Delay in Networking
01:00:01 Completion Time Calculation in Networking
01:01:22 Understanding Propagation Delay and Transmission Time
01:04:46 Understanding Aloha Protocol Basics
01:05:12 Pure Aloha vs. Slotted Aloha
01:13:53 Vulnerable Time Calculation
01:16:50 Handling Collisions in ALOHA
01:23:13 Game Scenario: Collision and Data Transmission
01:26:22 Persistence Method in CSMA
01:26:35 Continuous Sensing Approach
01:27:46 Comparison: Continuous vs. Non-Persistent
01:28:11 Probability Mechanism for Transmission
01:33:57 Understanding Collision Detection in CSMA/CD
01:34:54 Introducing Collision Detection Mechanism in CSMA/CA
01:35:07 Understanding Collision Avoidance in CSMA/CA
01:37:20 Error Control Mechanisms in Data Transmission
01:38:02 Dealing with Collisions and Acknowledgment Mechanism
01:40:33 Sliding Window Protocol Overview
01:41:01 Stop-and-Wait Protocol Operation
01:43:36 Flow Control in Networking
01:44:03 Error Handling in Data Transmission
01:45:26 Numbering and Alternating Acknowledgments
01:47:18 Understanding Propagation Delay and Transmission Delay
01:47:45 Bandwidth and Its Role in Data Transmission
01:48:13 Introduction to Queuing Delays in Networking
01:54:18 Sliding Window Mechanism
01:55:12 Dynamic Window Size Calculation
01:56:09 Sender's Temporary Numbering Logic
01:56:36 Capacity Limitations and Selective Sending
01:58:54 Go-Back-N Protocol
02:00:32 Understanding Transmission Timers
02:00:44 Window Size and Efficiency
02:00:58 Acknowledgment Efficiency Mechanism
02:01:26 Acknowledgment Optimization
02:01:39 Transmitting Multiple Packets
02:02:33 Bit Count Calculation
02:03:41 Selective Repeat ARQ explained
- Criticizes Stop-and-Wait for being too conservative.
02:10:16 Impact of Data Speed on Errors
02:11:43 Forming Code Words
02:11:57 Adding Redundancy for Error Detection
02:12:12 Error Detection: Exclusive OR Operation
02:12:26 Pair Checking for Error Detection
02:12:53 Redundancy and Code Words
02:14:01 Understanding Even Parity
02:14:12 Setting Even Parity
02:14:54 Understanding Hamming Distance
02:15:22 Evaluating System Properties
02:15:50 Challenges in Error Detection
02:16:04 Conclusion on Error Detection
02:17:01 Error Detection and Correction Basics
02:21:28 Hamming Code Example and Cost Calculation
02:21:53 Calculating Costs and Making Policies in Hamming Code
02:22:08 Application of Policies and Practical Example
02:22:22 Dynamic Data Length in Hamming Code
02:23:57 Calculating Parity in Hamming Code - Example
- Verifying and correcting errors in the received data.
02:27:22 Checksum Concept
- Use of checksums to verify information integrity.
02:28:02 Introduction to Checksum Calculation
02:29:22 Problem with Binary Representation in Checksum
02:29:37 Wrapping Technique in Checksum
02:30:03 Implementing Modular Arithmetic in Checksum
02:33:12 Checksum Logic in CRC
02:39:07 Applying Cubes in Multiplication
02:42:53 Wi-Fi and Local Level Connectivity
02:45:42 Ethernet Frame Length
02:47:10 Maximum Frame Length Revisited
02:47:54 Real-Time Processing Considerations
02:49:16 Token Bus Topology and Operation
02:53:18 Signal Representation and Manchester Coding
02:54:01 Networking Basics and Signal Creation
02:56:29 Role of Routing in Source-to-Destination Delivery
02:57:15 Role of Address and Mechanism in Data Delivery
02:59:23 IPv4 Header Structure Details
03:01:15 Reliability with TCP/IP Protocol Suite
03:01:46 Understanding IP (Internet Protocol) and its reliability in comparison to a truck delivery
03:08:04 Protocols and Service Usage
03:08:46 Protocol Demands and Examples
03:09:01 Fields in Data Grams: Length Fields
03:09:40 Calculating Payload Length
03:09:55 Header Length Calculation
03:10:24 Address Masking Technique
03:12:29 Reassembly Process and Offset Calculation
03:14:46 Scaling Technique for Offset Adjustment
03:17:19 Dealing with Fragmentation Challenges
03:17:59 Understanding Fragmentation Offset and More
03:19:19 Packet Routing Basics
03:19:32 Logical Time-to-Live and Packet Charging
03:20:00 Handling Limited Time and Maximum Hops
03:20:28 Setting TTL for Efficient Packet Transmission
03:20:53 Error Handling and Resending
03:22:30 Header and Payload Check in Networking
03:22:58 Security Concerns in Header Handling
03:25:26 Addressing and Record Route in Networking
03:26:49 Strict Source Route vs. Loose Source Route
03:27:15 Importance of Time Stamping
03:28:10 IPv6 Header Overview
03:31:06 IPv6 Extension Headers Details
03:32:31 Address Resolution Protocol (ARP)
03:37:05 Reverse Address Resolution Protocol (RARP) Explained
03:37:42 Internet Control Message Protocol (ICMP) Functionality
03:38:22 Internet Control Message Protocol (ICMP) Working
03:38:52 ICMP Error Reporting Examples
03:39:35 IP Packet Discard Process
03:42:35 IP Address and Router Failure Handling
03:43:46 Router Functions and Timestamping
03:45:36 IP Addressing Basics
03:47:52 Changing IP Addresses
03:49:53 Binary Combinations and Network Identification
03:50:33 Classful Addressing Mechanism
03:52:13 IP Addressing Basics
03:52:40 Classless Addressing
03:56:29 Class A IP Address Details:
03:58:22 Class C Network ID and Practical Range:
03:58:49 Calculating Host ID Bits in Class C:
03:59:02 Reserving Bits for Network ID and Broadcast:
04:00:08 Subnet Calculation in Class B
04:02:04 Class D for Multicasting
04:04:12 Address Casting in Computer Networks
04:04:56 Broadcasting in Computer Networks
04:07:35 Unicast and Broadcast
04:07:48 Multicasting and Subnetting
04:09:44 Broadcast Challenges
04:10:12 Subnet Broadcasting Strategy
04:11:11 Class C Subnetting Example
04:12:48 Subnetting and Allocatable Addresses

[mahaprasadpatro]

Takeaways for quick navigation:


thank me later

01:11 📘 Understanding the Standard Syllabus
03:02 🌐 Basics of Network Connections
06:01 🎯 Goal of Computer Networks
06:41 📊 Decentralized vs. Centralized Data Storage
08:21 🌐 Governance and Public Services Online
09:17 📡 Data Communication Basics
- Communication occurs in one direction at a time.
- Example: Like a two-way road where traffic flows in both directions concurrently.
14:00 🛣 Networking Criteria for Design
- Performance: Speed, capacity, and bandwidth considerations.
- Reliability: The network's ability to overcome failures and resolve issues strategically.
16:22 🌐 Types of Connections: Point-to-Point and Multipoint
21:17 🔗 Understanding Ring Topology
22:12 🔄 Conclusion on Topology Types
25:35 🌐 Importance of Remembering OSI Model Layers
25:48 🌐 Networking Layer Overview
26:03 🏛 Protocol and Approach
26:18 🌐 Network Layer Responsibilities
26:31 📡 Internet and Transport Layers
26:45 🚦 Rules and Regulations in Models
26:57 🔄 Evolution of Protocols
27:12 📚 Importance of Networking Layer Understanding
27:27 🔗 Device Communication Basics
27:41 📦 Encapsulation Concept
28:36 🔄 Continuous Header Removal
29:20 📞 Direct Communication Approach
30:42 🌐 Point-to-Point and Multi-Point Connections
31:23 🚀 Handling Data Rate and Bandwidth
32:02 🔗 Network Topology
32:44 🔄 Handling Communication Modes
33:13 📡 Data Link Layer Introduction
34:05 🔄 Data Link Layer: Access Control
36:11 🌐 Network Layer - Source to Destination Delivery:
36:53 🌐 Network Layer - Routing Mechanism:
38:17 🌐 Network Layer - Service Point and Addressing:
38:43 🌐 Network Layer - Segmentation and Reassembly:
40:06 🔄 Transport Layer Functions
40:35 🤝 Session Layer Overview
41:31 🔍 Presentation Layer Significance
42:11 📜 Encryption and Decryption in Presentation Layer
42:25 📊 Data Compression
43:34 📡 Handling Various Services in the Application Layer
44:27 🌐 Types of Wired Transmission Media: Twisted Pair
45:36 🌐 Coaxial and Optical Fiber Overview
47:40 🌐 Sky Propagation - Ionosphere Reflection
48:21 🌐 Line of Sight Propagation for Short-Range
50:00 📡 Advantages and Disadvantages of Circuit Switching
51:36 🔄 Traditional Approaches to Capacity Division
54:34 📞 BRI and PRI in Circuit Switching
55:00 🌐 Data Link Layer Basics
56:23 🛠 Detailed Responsibilities of Logical Link Control
57:29 📡 Random Access Protocols
57:57 🌐 Propagation Delay in Networking
01:00:01 🔄 Completion Time Calculation in Networking
01:01:22 📡 Understanding Propagation Delay and Transmission Time
01:04:46 📡 Understanding Aloha Protocol Basics
01:05:12 🌐 Pure Aloha vs. Slotted Aloha
01:13:53 ⏱ Vulnerable Time Calculation
01:16:50 🔄 Handling Collisions in ALOHA
01:23:13 🎮 Game Scenario: Collision and Data Transmission
01:26:22 🔗 Persistence Method in CSMA
01:26:35 🌐 Continuous Sensing Approach
01:27:46 ⚖ Comparison: Continuous vs. Non-Persistent
01:28:11 🎲 Probability Mechanism for Transmission
01:33:57 🔄 Understanding Collision Detection in CSMA/CD
01:34:54 🔄 Introducing Collision Detection Mechanism in CSMA/CA
01:35:07 🔄 Understanding Collision Avoidance in CSMA/CA
01:37:20 🔄 Error Control Mechanisms in Data Transmission
01:38:02 🛑 Dealing with Collisions and Acknowledgment Mechanism
01:40:33 🔄 Sliding Window Protocol Overview
01:41:01 🛑 Stop-and-Wait Protocol Operation
01:43:36 🔄 Flow Control in Networking
01:44:03 🛠 Error Handling in Data Transmission
01:45:26 📝 Numbering and Alternating Acknowledgments
01:47:18 🌐 Understanding Propagation Delay and Transmission Delay
01:47:45 📶 Bandwidth and Its Role in Data Transmission
01:48:13 🔄 Introduction to Queuing Delays in Networking
01:54:18 📶 Sliding Window Mechanism
01:55:12 🔄 Dynamic Window Size Calculation
01:56:09 🔄 Sender's Temporary Numbering Logic
01:56:36 🔄 Capacity Limitations and Selective Sending
01:58:54 ↩ Go-Back-N Protocol
02:00:32 🕰 Understanding Transmission Timers
02:00:44 🔄 Window Size and Efficiency
02:00:58 🤔 Acknowledgment Efficiency Mechanism
02:01:26 🔄 Acknowledgment Optimization
02:01:39 🔄 Transmitting Multiple Packets
02:02:33 ⚙ Bit Count Calculation
02:03:41 🌐 Selective Repeat ARQ explained
- Criticizes Stop-and-Wait for being too conservative.
02:10:16 🚥 Impact of Data Speed on Errors
02:11:43 ⚙ Forming Code Words
02:11:57 ➕ Adding Redundancy for Error Detection
02:12:12 🔒 Error Detection: Exclusive OR Operation
02:12:26 🔍 Pair Checking for Error Detection
02:12:53 💡 Redundancy and Code Words
02:14:01 🤔 Understanding Even Parity
02:14:12 🔄 Setting Even Parity
02:14:54 💡 Understanding Hamming Distance
02:15:22 🤔 Evaluating System Properties
02:15:50 🔄 Challenges in Error Detection
02:16:04 🔍 Conclusion on Error Detection
02:17:01 🔄 Error Detection and Correction Basics
02:21:28 🎲 Hamming Code Example and Cost Calculation
02:21:53 🧮 Calculating Costs and Making Policies in Hamming Code
02:22:08 🎓 Application of Policies and Practical Example
02:22:22 🔄 Dynamic Data Length in Hamming Code
02:23:57 📜 Calculating Parity in Hamming Code - Example
- Verifying and correcting errors in the received data.
02:27:22 🤔 Checksum Concept
- Use of checksums to verify information integrity.
02:28:02 🧠 Introduction to Checksum Calculation
02:29:22 🔍 Problem with Binary Representation in Checksum
02:29:37 🔄 Wrapping Technique in Checksum
02:30:03 ⚙ Implementing Modular Arithmetic in Checksum
02:33:12 🔍 Checksum Logic in CRC
02:39:07 🤖 Applying Cubes in Multiplication
02:42:53 📡 Wi-Fi and Local Level Connectivity
02:45:42 📏 Ethernet Frame Length
02:47:10 📏 Maximum Frame Length Revisited
02:47:54 🛡 Real-Time Processing Considerations
02:49:16 🕰 Token Bus Topology and Operation
02:53:18 ⚙ Signal Representation and Manchester Coding
02:54:01 🌐 Networking Basics and Signal Creation
02:56:29 🛣 Role of Routing in Source-to-Destination Delivery
02:57:15 🌐 Role of Address and Mechanism in Data Delivery
02:59:23 🧮 IPv4 Header Structure Details
03:01:15 🔄 Reliability with TCP/IP Protocol Suite
03:01:46 🚚 Understanding IP (Internet Protocol) and its reliability in comparison to a truck delivery
03:08:04 💡 Protocols and Service Usage
03:08:46 💼 Protocol Demands and Examples
03:09:01 📊 Fields in Data Grams: Length Fields
03:09:40 📏 Calculating Payload Length
03:09:55 🛠 Header Length Calculation
03:10:24 📡 Address Masking Technique
03:12:29 🔄 Reassembly Process and Offset Calculation
03:14:46 🧮 Scaling Technique for Offset Adjustment
03:17:19 📦 Dealing with Fragmentation Challenges
03:17:59 ⚙ Understanding Fragmentation Offset and More
03:19:19 🌐 Packet Routing Basics
03:19:32 🧠 Logical Time-to-Live and Packet Charging
03:20:00 🛑 Handling Limited Time and Maximum Hops
03:20:28 🛣 Setting TTL for Efficient Packet Transmission
03:20:53 🚨 Error Handling and Resending
03:22:30 🕵 Header and Payload Check in Networking
03:22:58 🛡 Security Concerns in Header Handling
03:25:26 🖥 Addressing and Record Route in Networking
03:26:49 🔄 Strict Source Route vs. Loose Source Route
03:27:15 🕰 Importance of Time Stamping
03:28:10 🧩 IPv6 Header Overview
03:31:06 🛡 IPv6 Extension Headers Details
03:32:31 🌐 Address Resolution Protocol (ARP)
03:37:05 🔄 Reverse Address Resolution Protocol (RARP) Explained
03:37:42 🌐 Internet Control Message Protocol (ICMP) Functionality
03:38:22 🛠 Internet Control Message Protocol (ICMP) Working
03:38:52 🚨 ICMP Error Reporting Examples
03:39:35 📡 IP Packet Discard Process
03:42:35 🌐 IP Address and Router Failure Handling
03:43:46 🌐 Router Functions and Timestamping
03:45:36 🌐 IP Addressing Basics
03:47:52 🔄 Changing IP Addresses
03:49:53 🌐 Binary Combinations and Network Identification
03:50:33 🌐 Classful Addressing Mechanism
03:52:13 🌐 IP Addressing Basics
03:52:40 🌍 Classless Addressing
03:56:29 🌐 Class A IP Address Details:
03:58:22 💼 Class C Network ID and Practical Range:
03:58:49 🖥 Calculating Host ID Bits in Class C:
03:59:02 📢 Reserving Bits for Network ID and Broadcast:
04:00:08 🌐 Subnet Calculation in Class B
04:02:04 🌐 Class D for Multicasting
04:04:12 📡 Address Casting in Computer Networks
04:04:56 🌐 Broadcasting in Computer Networks
04:07:35 📡 Unicast and Broadcast
04:07:48 🌐 Multicasting and Subnetting
04:09:44 🌐 Broadcast Challenges
04:10:12 📡 Subnet Broadcasting Strategy
04:11:11 📶 Class C Subnetting Example
04:12:48 📡 Subnetting and Allocatable Addresses

[ManiPulator-Official]

B. Tech students 👩‍🎓 attendance lgao (2025)

[ganeshmaharaj]

4:53 Map correction is just 🔥. Jai Hind 🫡

[RatiAntapurkar-ym]

I was afraid of this subject before but now it has become very easy to understand. I wish I had professors like you in my college. Thank you so much sir for your easy explanation..

[thestranger]

Literally what a coincidence, My CN exam is coming in 2 days and you dropped this playlist just before my exam. Thanks Sir

[yash]

3:08:54
SNMP: Simple Network Management Protocol: Reliability
SMTP: Simple Mail Transfer Protocol: Throughput

[pankajsehrawat]

Thank you so much sir for such compact powerful course on CN. I feel priviledged to know hindi

[bikashbhardwaj]

sir, ekhi toh dil he kitni bar jitego ; i am tooo muchh excited sir; love you sir ;

[saurabhh______]

We require videos covering all the subjects of GATE 2024

[jayantaggarwal]

your one shot videos are great for collage exams 🔥🔥❤‍🔥❤‍🔥

[pradyumanupadhyay]

Sir aap mushqil se mushqil concept ko bhot aasani se smjha dete h, Thankyou very much

[knowitnow]

I am starting this lecture hoping it will help me in my uni
Osmani University exams