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Computer Networks Fast Revision Notes
7 Modules, 12 Chapters, 700+ Questions & 5 Mocks. Formatted for quick revision, complete with candidate key algorithms, normal forms, transaction schedules, and verified answer keys.
118
Core Pages
7
Modules
700+
Practice Qs
5
Full Mocks
Instant PDF Delivery · Print-Friendly Layout · Lifetime Revisions
Sneak Peek
Sample pages showing the high-contrast formatting, cheat-sheet summaries, and structured practice layouts.
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Detailed Syllabus
What's Inside the Notes
7 structured modules engineered for maximum concept recall in competitive examinations.
01
Network Fundamentals & Physical Layer
- OSI 7-Layer vs. TCP/IP 4-Layer Models & Addressing (MAC, IP, Port)
- Transmission Modes (Simplex/Duplex) & Topologies (Mesh, Star, Bus)
- Switching: Circuit vs. Datagram vs. Virtual Circuit
- Line Coding (NRZ, Manchester), Bit vs. Baud Rate & Latency ($T_t, T_p, RTT$)
- Bandwidth-Delay Product (BDP), Nyquist & Shannon Capacity Theorems
02
Data Link Layer & Medium Access Control
- Framing: Byte Stuffing & Bit Stuffing (5-Consecutive-Ones Rule)
- Error Detection: Checksum, 2D Parity & CRC (Modulo-2 Arithmetic)
- Error Correction: Hamming Codes & Minimum Hamming Distance ($d_{\min}$)
- Flow Control: Stop-and-Wait, Go-Back-N (GBN) & Selective Repeat (SR)
- MAC Protocols: Pure/Slotted ALOHA, CSMA/CD, CSMA/CA (RTS/CTS) & Ethernet
03
Network Layer, Subnetting & Routing
- IPv4 Addressing: Classes, RFC 1918 Private Ranges & Special IPs (Loopback, APIPA)
- CIDR Subnetting Algorithms (Network ID, Broadcast ID, Usable Hosts)
- IPv4 Header Architecture & Packet Fragmentation Math (Flags, Offset)
- IPv6 40-Byte Header & Transition Mechanisms (Dual-Stack, Tunneling, NAT64)
- Routing: Distance Vector (RIP), Link State (OSPF), BGP, ARP, ICMP & NAT/PAT
04
Transport Layer Protocols (TCP & UDP)
- Process-to-Process Delivery, Sockets & Port Numbers (Well-Known vs. Ephemeral)
- UDP 8-Byte Header Format & Pseudo-Header Checksum Computation
- TCP Byte-Stream Model, Header Blueprint & 6 Control Flags (SYN, ACK, FIN...)
- Connection Lifecycle: 3-Way Handshake, 4-Way Teardown & TIME-WAIT ($2\times\text{MSL}$)
- Congestion Control State Machine: Slow Start, Congestion Avoidance, Tahoe vs. Reno
05
Application Layer & Network Management
- DNS: Hierarchy, Resolution (Recursive vs. Iterative) & Records (A, AAAA, CNAME, MX)
- HTTP/1.0 vs. HTTP/1.1 vs. HTTP/2, 3-Digit Status Codes & REST Idempotency
- FTP: Active vs. Passive Modes (Ports 20 & 21)
- DHCP: 4-Step DORA Handshake (Ports 67/68) & Relay Agents
- Email (SMTP, MIME, POP3, IMAP4), SSH vs. Telnet & SNMP Architecture
06
Network Security & Cryptography
- Security Goals (CIA Triad), Symmetric (DES, AES) vs. Asymmetric Ciphers
- Step-by-Step RSA Math ($n, \phi(n), e, d$) & Diffie-Hellman Key Exchange
- Cryptographic Hashes (MD5, SHA-256), HMAC & Digital Signatures (X.509)
- IPsec Architecture: AH (51) vs. ESP (50) in Transport & Tunnel Modes
- SSL/TLS Handshake, Kerberos (Port 88) & Firewalls (Packet-Filter, Proxy, DMZ)
07
Full-Length Mock Tests
- 5 full-syllabus mock tests (125 exam-pattern questions)
- Timed exam conditions (20 minutes / 25 marks per test)
- Consolidated answer sheets with step-by-step numerical explanations
Methodology
The Active Revision Cycle
Designed as an iterative learning loop rather than passive reading material.
01
Learn
Read focused concept summaries without textbook filler.
02
Practice
Solve direct checkpoint questions adjacent to each topic.
03
Test
Attempt chapter-level evaluation quizzes.
04
Evaluate
Identify exact algebraic or conceptual weak areas.
05
Mock
Take full-syllabus timed tests under strict time limits.
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Computer Networks Fast Revision Notes
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- Complete Computer Networks revision eBook
- 7 modules, 12 comprehensive chapters
- Networks, Security, and Cryptography
- 5 full-syllabus mock tests (125 questions)
- High-contrast, print-friendly clean design
- Instant digital delivery & lifetime updates
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