Computer Networks One Shot for IOCL GE CSE 2026 | Master All Concepts | Most Expected Questions

Master the complete Computer Networks syllabus for IOCL GE CSE 2026 and other PSU CBT exams in this one-shot marathon session! 🚀 In this video, we cover core concepts, detailed theory, and most expected practice questions/numericals from previous year patterns across topics like OSI Model, Flow Control Protocols (Stop-and-Wait, Go-Back-N, Selective Repeat), IPv4 Header & Subnetting, Routing Algorithms, TCP/UDP, and CSMA/CD. ⏱️ Timestamps & Chapters: 00:00 – Introduction & Exam Strategy 01:46 – OSI Model & Layer Responsibilities (Session, Presentation, Transport) 04:16 – Error Detection Techniques (CRC vs Parity vs Checksum) 05:44 – Aloha Protocols: Pure Aloha vs Slotted Aloha Throughput 08:30 – Circuit Switching: Phases, Timings & Link Connections 13:48 – Bandwidth & Unit Conversion Guide (Kbps, Mbps, Milliseconds) 15:19 – Stop-and-Wait Protocol: Efficiency & Utilization Calculation 18:47 – Stop-and-Wait: Minimum Frame Size Numerical 22:21 – Throughput Formulas & Efficiency Quick Summary 23:22 – Routing Protocols: Distance Vector vs Link State (Count to Infinity) 25:45 – Sliding Window Protocols Summary (Stop-and-Wait, GBN, SR) 26:46 – Shortest Path Algorithms: Dijkstra vs Bellman-Ford 27:35 – Selective Repeat (SR) Protocol: Sequence Number Field Calculation 31:58 – IP Packet Fragmentation & MTU Calculation 34:02 – CIDR Notation & Usable Host Addresses 35:54 – Subnet Mask Dot-Decimal Representation 37:09 – CRC (Cyclic Redundancy Check) Division & Remainder Step-by-Step 44:15 – Packet Traversal Through Layers & Intermediate Routers 48:24 – IPv4 Header Format, Field Sizes & Details 50:54 – TTL (Time to Live) & Looping Prevention 53:01 – Don’t Fragment (DF) Bit & MTU Drops 54:09 – Fragment Offset & More Fragments (MF) Flag Numerical 58:48 – Total Bytes Transmitted Across Fragments 01:02:27 – Classful Addressing: Class C Network & Host Calculations 01:04:34 – Subnet Mask Matching for Same Network 01:09:00 – Maximum Number of Hosts per Subnet Numerical 01:11:13 – Subnetting a Class B Network into 64 Departments 01:14:26 – Bitwise AND Method to Find Subnet ID 01:16:02 – CIDR: Last Usable Host IP Address Calculation 01:18:32 – TCP Header vs IPv4 Header Fields 01:18:45 – TCP Connection Termination & 3-Way Handshake 01:20:25 – TCP Timers: Keep-Alive, Retransmission, Persist & Time-Wait 01:23:14 – Email Protocols: SMTP vs POP3 vs IMAP 01:25:00 – Standard Application Layer Port Numbers (HTTP, FTP, Telnet, SSH) 01:25:58 – CSMA/CD: Minimum Frame Size & Efficiency Numerical 1 01:28:10 – CSMA/CD: Minimum Frame Size Numerical 2 01:29:20 – Summary & Upcoming Sessions 🔗 𝑪𝒐𝒏𝒏𝒆𝒄𝒕 𝒘𝒊𝒕𝒉 𝑺𝒒𝒖𝒊𝒓𝒓𝒆𝒍 𝑰𝑰𝑻𝑴 📸 𝑰𝒏𝒔𝒕𝒂𝒈𝒓𝒂𝒎: https://www.instagram.com/squirrel.li... 📢 𝑻𝒆𝒍𝒆𝒈𝒓𝒂𝒎: https://t.me/GATE_CSE_2026_discussion ▶️ LinkedIn : https://www.linkedin.com/in/nishant-s... ▶️ Book your 1:1 Session on Topmate : topmate.io/nishant_shukla02 IOCL GE CSE 2026, IOCL Computer Science Preparation, IOCL GE Exam CN, Computer Networks One Shot IOCL, PSU CSE Computer Networks, OSI Model Layers Numericals, IPv4 Header Fields, Subnetting Numericals CSE, CIDR Address Calculation, IP Packet Fragmentation, MTU Fragment Offset, Stop and Wait Protocol Numericals, Sliding Window Protocol Efficiency, Go Back N Protocol, Selective Repeat Sequence Number, Pure Aloha vs Slotted Aloha, CSMA CD Minimum Frame Size, Circuit Switching Timings, CRC Division Step by Step, Error Detection Checksum, Distance Vector Routing, Link State Routing, Count to Infinity Problem, Dijkstra vs Bellman Ford, TCP IPv4 Header Comparison, TCP 3 Way Handshake, TCP Timers Persist Retransmission, Email Protocols SMTP POP3 IMAP, Standard Port Numbers CSE, Bitwise AND Subnet ID, Class C Subnetting, Class B Subnet Division, Last Usable Host IP Calculation, Throughput and Efficiency CN, Data Link Layer Numericals, Network Layer Expected Questions, Transport Layer Protocols, Most Expected Questions IOCL CSE, IOCL CSE CBT Revision, Squirrel IITM Computer Networks #IOCL2026 #IOCLRecruitment #IOCLGECSE #ComputerNetworks #CNOneShot #ComputerScience #PSURecruitment #GATECS #ISROCS #BARCCS #NIELITCSE #Subnetting #OSIModel #TCPIP #EngineeringExams #SquirrelIITM