COMPUTER NETWORK AND SECURITY
INTRODUCTION TO COMPUTER NETWORK
- Definition, Uses And Benefits
- Overview Of Network Topologies
- Overview Of Network Types
- Protocols And Standards
- Osi Reference Model
- Tcp/Ip Model
- Comparison Of Osi And Tcp/Ip
- Connectionless And Connection Oriented Network Services
- Internet, Isp, Backbone Overview
- Client Server And Peer To Peer Network
- Assignemnt -Chapter 1
- Chapter 1 Slides-Bca
- Chapter 1 Slides-Bsccsit
PHYSICAL LAYER
DATA LINK LAYER
- Definition And Function
- Overview Of Llc And Mac
- Framing
- Flow Control
- Channel Allocation Techniques
- Ethernet Standards
- Dll Protocol
- Hamming Code-(Error Detection And Correction)
- Asynchronous Transfer Mode(Atm)
- Ieee 802.11
- Error Detection And Correction
- Parity Check - Error Detection
- Checksum -Error Detection
- Crc- Cyclic Redundancy Code
- Data Link Layer - Slides
NETWORK LAYER
- Introduction And Function
- Ipv4 Addressing And Subnetting
- Classful Address And Classless Addressing
- Ipv6 Addressing And Features
- Ipv4 And Ipv6 Header Format
- Comparision Of Ipv4 And Ipv6
- Example Address: Unicast, Multicast And Broadcast
- Example Address: Unicast, Multicast And Broadcast
- Routing And Routing Table
- Types Of Routing (Static Vs Dynamic, Unicast Vs Multicast,Link State Vs Distance Vector, Interior Vs Exterior)
- Routing Algorithm
- Routing Protocols
- Ipv4 To Ipv6 Transition Mechanism
- Icmp And Icmpv6
- Nat
- Network Traffic Analysis
- Firewall
- Access Control List
- Path Computation Algorithm
- Subnetting Numerical
Transport Layer
Multiple Choice Question
Application Layer
Network Security
Multimedia and Future Networking
COMPUTER NETWORK LAB WORK
- Lab 5:Basic Router Configuration
- Static Routing
- Dynamic Routing
- Creation Of Vlan And Trunking
- Creating A Lan And Connectivity Test In Lan
- Lab 3: Basic Network Command
- Implement Firewall Using Packet Tracer
- Basic Firewall Implementation
- Dns And Web Server Configuration
- Ftp
- Acl(Access Control List)
- Ethernet Cabling- Straight And Crossover
- Lab 1: Prepare A Hardware And Software Specification For Basic Computer System
- Lab 3: Determine Appropriate Placement Of Networking Device On A Network
Flow control mechanisms in the Data Link Layer are employed to manage the rate at which data is transmitted between two devices in a network. The primary goal of flow control is to prevent the sender from overwhelming the receiver with data, especially in situations where the sending and receiving devices operate at different speeds.
Flow control mechanisms in the Data Link Layer:
- Stop-and-Wait:
- In the stop-and-wait flow control mechanism, the sender sends a frame and then waits for an acknowledgment (ACK) from the receiver before sending the next frame. This ensures that the receiver has successfully received and processed the previous frame.
- Sliding Window:
- Sliding window protocols allow multiple frames to be in transit between the sender and receiver simultaneously. The sender maintains a "window" of acceptable sequence numbers, and the receiver acknowledges frames within that window. The window slides as acknowledgments are received, allowing for efficient use of network bandwidth.
- Go-Back-N: The sender can have multiple frames in transit, and the receiver acknowledges a continuous range of frames. If an error occurs, the sender retransmits all frames from the damaged frame onwards.
- Sliding window protocols allow multiple frames to be in transit between the sender and receiver simultaneously. The sender maintains a "window" of acceptable sequence numbers, and the receiver acknowledges frames within that window. The window slides as acknowledgments are received, allowing for efficient use of network bandwidth.
- Selective Repeat: The sender can have multiple frames in transit, and the receiver acknowledges individual frames. If an error occurs, only the damaged frame needs to be retransmitted.
