COMPUTER NETWORK

1. What is the primary purpose of the MAC sublayer?

a) To manage access to the shared medium b) To provide error detection and correction c) To route data between networks d) To encrypt data for secure transmission

2. Which of the following is a random access protocol?

a) ALOHA b) CSMA c) CSMA/CD d) All of the above

3. What is the main advantage of the ALOHA protocol?

a) Simplicity b) High efficiency c) Low latency d) High throughput

4. What is the primary disadvantage of the ALOHA protocol?

a) Low efficiency b) High complexity c) High latency d) High cost

5. What is the purpose of CSMA (Carrier Sense Multiple Access)?

a) To sense the medium before transmitting b) To detect collisions during transmission c) To retransmit lost frames d) To encrypt data for secure transmission

6. What is the main advantage of CSMA/CD (Carrier Sense Multiple Access with Collision Detection)?

a) It detects collisions and retransmits data b) It is simple to implement c) It has low latency d) It requires less bandwidth

7. Which of the following is a controlled access protocol?

a) Token Passing b) Polling c) Reservation d) All of the above

8. What is the primary purpose of the Ethernet protocol?

a) To provide reliable data transmission over a LAN b) To manage access to the shared medium c) To detect and correct errors in transmission d) To route data between networks

9. Which of the following is a characteristic of the Ethernet protocol?

a) It uses CSMA/CD for collision detection b) It is a controlled access protocol c) It has high latency d) It requires a token for transmission

10. What is the main disadvantage of controlled access protocols?

a) High complexity b) Low efficiency c) High latency d) All of the above

11. What is the primary purpose of random access protocols?

a) To allow stations to transmit without coordination b) To manage access to the shared medium c) To detect and correct errors in transmission d) To route data between networks

12. Which of the following is a characteristic of CSMA/CD?

a) It detects collisions and retransmits data b) It is a controlled access protocol c) It has high latency d) It requires a token for transmission

13. What is the primary purpose of the Token Passing protocol?

a) To allow stations to transmit in a controlled manner b) To detect collisions during transmission c) To retransmit lost frames d) To encrypt data for secure transmission

14. Which of the following is a disadvantage of the Ethernet protocol?

a) It is susceptible to collisions b) It has high complexity c) It has high latency d) It requires a token for transmission

15. What is the primary purpose of the Polling protocol?

a) To allow a central controller to manage access to the medium b) To detect collisions during transmission c) To retransmit lost frames d) To encrypt data for secure transmission

MAC Sublayer MCQs

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