Why is a basic network Hub often called a 'dumb' device compared to a modern network Switch? MCQ with Answer and Explanation

Why is a basic network Hub often called a 'dumb' device compared to a modern network Switch?
A. It cannot understand digital binary configurations.
B. It lacks internal power supplies.
C. It broadcasts all incoming data packets out to every connected port, causing collision issues.
D. It cannot transmit data wirelessly.
Answer: Option C
Solution (By JKSSB Mock Tests)
A hub operates at the Physical Layer (Layer 1) and simply repeats incoming signals to all ports, increasing network collisions and security vulnerabilities.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Computer Networking Questions

Question #1
What is the maximum number of IP addresses in a Class C network?
A. 256
B. 254
C. 65534
D. 16,777,214

Correct Answer: Option B


Explanation:
Class C has 8 host bits, giving 2^8 = 256 addresses, with 2 reserved (network and broadcast), so 254 usable.

This question belongs to: Computer Computer Networking
Question #2
What is the maximum number of subnets available in a Class C network with a /27 subnet mask?
A. 16
B. 8
C. 32
D. 4

Correct Answer: Option B


Explanation:
Class C default /24, /27 borrows 3 bits, giving 2^3 = 8 subnets.

This question belongs to: Computer Computer Networking
Question #3
What is the function of the Address Resolution Protocol (ARP)?
A. Maps MAC addresses to IP addresses
B. Maps domain names to IP addresses
C. Maps IP addresses to MAC addresses
D. Maps ports to services

Correct Answer: Option C


Explanation:
ARP resolves an IP address to a physical MAC address on the local network.

This question belongs to: Computer Computer Networking