BCA / B.Tech 11 min read

Network Switching & Components

Network Switching in Computer Networks:


Network switching is an important process used in computer networks to manage data traffic and route data from one device to another. It involves transmitting data through various network devices like routers, switches, and hubs. The main objective is to manage network data traffic efficiently.

Types of Network Switching:
1. Circuit Switching: A traditional technique where a dedicated connection (circuit) is established before communication begins (e.g., telephone calls). It has low delay but can waste resources.
2. Packet Switching: A modern technique where data is divided into small packets that travel independently to their destination (e.g., Internet, email). Its efficient and reliable but can have variable delays.
3. Message Switching: An older technique where data is sent as a whole message, which is stored and forwarded at each network node (e.g., old telegraph networks). It's slow but ensures data integrity.

Network Components in Computer Networks:


Network components are the devices and software that make a network functional. Key components include:
  • Router: Guides data packets between different networks.
  • Switch: Connects multiple devices within the same network.
  • Hub: A simple device that connects multiple devices but broadcasts data to all ports.
  • Modem: Converts digital signals to analog and vice-versa for internet connection.
  • Network Interface Card (NIC): Hardware that connects a computer to a network.
  • Firewall: A security device that protects a network from unauthorized access.
  • Access Point: A device that allows wireless devices to connect to a network.
  • Cabling: The physical medium for data transmission, such as twisted pair, coaxial, and fiber optic cables.

In this Chapter

Network Switching & Components
Auto-Configuration and Anycast
Modified EUI-64 | What is Modified EUI-64?
Architecture of Mobile Computing
Wireless LAN in Hindi | What is Wireless LAN?
Wireless User Devices
MAC Protocol | What is MAC Protocol?
IEEE 802.11 | What is IEEE 802.11
Mobile IP | What is Mobile IP
Wireless TCP/IP
Unicast & Multicast Communication
Bluetooth | What is Bluetooth?
NS2 & NAM | What are NS2 and NAM?
Purpose & installation of NS2 & NAM
Background of NS2 & NAM
Architecture of NS2 & NAM
Interface of OTcl & C++
Trace Files & Formats
Protocol Support of NS2
Simulation Object of NS2 & NAM
Basic Syntax of NS2 & NAM
Node Creation of NS2 & NAM
Running NS2 & NAM
Finish Procedure NS2 & NAM
Invoking external commands within NS2
Nodes & Agents of NS2 & NAM
NS2 Commands
Creating Links in Wired Network
Setting Link Parameters
Sending Traffics Through NS2 Links
Routing Protocol Support of NS2
Scenarios in Wired Networks
Additional Parameters
Setting node positions
God object & topography
Protocol Support
Scenarios in Wireless Networks
What is the Internet? Difference Between Intranet and Extranet
Types of Internet
OSI Model and its Layers
Computer Network (CN) All Important Questions and Answers in English (MDSU)
BCA | Computer Network | 2025 Paper | MDSU Exam Paper
Importance of the Layer Model in Computer Networks
Network Classification
Network Topology
Ethernet
Token Ring
Basic Networking Concepts & Cabling
What is a Computer in English?
Bridges in Computer Networks
Routers in Computer Networks
Gateways in Computer Networks
Public & Private Networks
FDMA (Frequency Division Multiple Access)
BCA | CN(Computer Network) Paper | 2023 MDSU Exam Paper
What is World Wide Web (WWW)
TDMA, SDMA, CDMA
Personal Communication System | What is PCS
IPv4 | What is IPv4?
Subnetting IPv4 Address
Casting in IPv4
Private IPv4 Addressing
IPv4 Address Scheme
IPv6 Addressing Scheme
Types of IPv6 Addressing