Computer Networks Notes

Introduction-

• Types of Delay in Computer Networks
• Simplex | Half Duplex | Full Duplex

Flow Control-

• Stop and Wait Protocol
• Stop and Wait ARQ
• Problems On Stop and Wait Protocol
• Sliding Window Protocol
• Problems On Sliding Window Protocol
• Go back N Protocol
• Problems On Go Back N Protocol
• Selective Repeat Protocol
• Problems On Selective Repeat Protocol
• Comparison of Flow Control Protocols
• Misc Problems On Flow Control Protocols

Error Control-

• Single Parity Check
• Cyclic Redundancy Check
• Checksum

Access Control-

• Access Control Methods
• Time Division Multiplexing
• Polling
• CSMA / CD
• Back Off Algorithm
• Problems On CSMA / CD
• Token Passing
• Problems On Token Passing
• Aloha | Pure Aloha | Slotted Aloha

LAN Technologies-

• Ethernet | Ethernet Frame Format
• Problems On Ethernet

Switching-

• Circuit Switching
• Message Switching
• Packet Switching
• Circuit Switching Vs Packet Switching

Routing Algorithms-

• Distance Vector Routing | Example

IP Address-

• Classes of IP Address
• Casting | Types of Casting
• Problems On IP Addresses
• Classless Inter Domain Routing

Subnetting-

• IPv4 Subnetting
• Subnet Mask | How to Calculate Subnet Mask
• Problems On Subnet Mask
• Arrangement of Subnets | Routing Table
• Use of Subnet Mask

Internet Protocols-

• IPv4 Header
• Fragmentation in Network Layer
• Problems On IP Fragmentation

Transport Layer Protocols-

• Characteristics Of TCP
• TCP Header | Format
• TCP Sequence Numbers | Wrap Around Concept
• Three Way Handshake
• TCP Retransmission
• TCP Connection Termination
• Problems On TCP
• TCP Congestion Control
• Problems On TCP Congestion Control
• TCP Timers
• Time Out Timer | Computation Algorithms
• Silly Window Syndrome
• User Datagram Protocol

Application Layer Protocols-

• Domain Name Service | DNS
• HyperText Transfer Protocol | HTTP
• Simple Mail Transfer Protocol | SMTP
• Post Office Protocol | POP Vs IMAP
• File Transfer Protocol | FTP
• Comparison of Application Layer Protocols

Network Security-

• Cryptography | Symmetric Key Cryptography
• Asymmetric Key Cryptography | RSA Algorithm
• Diffie Hellman Key Exchange Algorithm
• Digital Signatures