9th Class Computer Chapter 3 TestCOMPUTER NETWORKS

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. In the school principal example, the principal’s office represents:

   1. The hub

   2. A node

   3. The bus cable

   4. The internet

2. Network security involves measures to:

   1. Increase internet speed

   2. Protect data and prevent unauthorized access

   3. Assign IP addresses

   4. Translate domain names

3. Managing sessions between applications is done by the:

   1. Presentation Layer

   2. Session Layer

   3. Application Layer

   4. Transport Layer

4. Data sent over the internet is divided into small segments called:

   1. Frames

   2. Packets

   3. Bits

   4. Segments only

5. Which network topology offer high redundancy and reliability?

   1. Bus topology

   2. Ring topology

   3. Star topology

   4. Mesh topology

6. Firewalls are used to:

   1. Convert data into a secure format

   2. Detect and remove malicious software

   3. Monitor and control incoming and outgoing network traffic

   4. Assign IP addresses

7. Which OSI layer is responsible for finding the best path to send data across networks?

   1. Data link

   2. Application

   3. Network

   4. Transport

8. Which network type connects multiple LANs in a city?

   1. WAN

   2. CAN

   3. PAN

   4. MAN

9. In Half-Duplex communication, data transmission can occur:

   1. In one direction only

   2. In both directions simultaneously

   3. In both directions, but not simultaneously

   4. Only in a circular path

10. MAC Address stands for:

    1. Media Access Control

    2. Memory Access Control

    3. Main Address Code

    4. Machine Address Code