Page 20 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

Disadvantages of Bus Topology:
• Single Point of Failure: If the central cable fails or gets damaged, the entire network can be disrupted.
• Limited Scalability: Adding more devices to a bus network can lead to signal degradation and performance
issues.
• Security Concerns: Since all devices share the same cable, it can be easier for unauthorized users to tap into
the network.
• Performance Issues: Bus topologies can suffer from signal collisions, especially as the number of devices
increases, leading to performance degradation.
2 Star Topology - In a star topology, all the devices are connected to a central hub or switch. Each device
communicates directly with the central hub, which manages and controls the network traffic. While this topology
is easy to set up and manage, the entire network may be affected if the central hub fails.

Scenario: Setting up a Local Area Network (LAN) using a Star Topology Requirements:
• Central switch or hub
• Multiple devices (computers, printers, etc.)

Steps to set up a Star Topology:
1 Select a Central Hub/ Switch: Choose a central device that will serve as the hub or switch for your
network. This device should have enough ports to accommodate all the devices you plan to connect.

2 Connect Devices to the Central Hub/ Switch: Use Ethernet cables to connect each device to one of the
available ports on the central hub or switch. These devices can include computers, printers, and any other
networked equipment. Each device has its cable running directly to the central hub.

3 Configure Network Settings: Configure the network settings on each connected device. This includes
setting IP addresses, subnet masks, and any other network-specific configurations. You may also set up
DHCP (Dynamic Host Configuration Protocol) on the central hub if you want it to automatically assign IP
addresses to connected devices.

4 Testing and Troubleshooting: Test the network connections to ensure that all devices can communicate with
each other. Troubleshoot any connectivity issues by checking cables, configurations, and the central hub’s status.
Advantages of a Star Topology:
• Easy to manage: Each device connects directly to the central hub, making it simple to add or remove devices
without disrupting the entire network.

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CITS : IT&ITES - Computer Software Application - Lesson 01-17