Computer Science Chapter 5 Network Communication and Protocols Mcqs Test Online Punjab 11th Class

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Question 1 of 10

Computer Science

1. In which communication made data can be sent and received in both directions but not simultaneously?

Synchronous transmission

Full-duplex mode

Half-duplex mode

Simplex mode

Question 1 of 10

Question 2 of 10

2. Which of the following network devices connects a network to another network that uses different protocol?

Router

Modem

Switch

Gateway

Question 2 of 10

Question 3 of 10

3. Which layer of OSI Model decides which physical path-way the data should take to reach the destination?

Session layer

Data link layer

Transport layer

Network layer

Question 3 of 10

Question 4 of 10

4. Which network layer performs security, name recognition, logging and similar functions?

Presentation layer

Session layer

Transport layer

Network layer

Question 4 of 10

Question 5 of 10

5. Which bits are used at the start of a Class B IP address?

110

19

0

101

Question 5 of 10

Question 6 of 10

6. Which of the following networks provides remote access to individuals and offices to their organization’s network?

LAN

WAN

MAN

VPN

Question 6 of 10

Question 7 of 10

7. In which topology a hub (switch) is used?

Mesh topology

Ring topology

Bus topology

Star topology

Question 7 of 10

Question 8 of 10

8. Which of these uses a start/stop bit for data transmission?

Asynchronous transmission

Half-duplex transmission

Full-duplex transmission

Synchronous transmission

Question 8 of 10

Question 9 of 10

9. Which of these cables transmits data using light waves?

Twisted pair cable

Coaxial cable

Fiber optic cable

Telephone line

Question 9 of 10

Question 10 of 10

10. Which topology is most expensive to implement?

Star topology

Bus topology

Mesh topology

Ring topology

Question 10 of 10

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