BCS Computer Networks 2

Question 1

What is the difference between a hub and a switch in networking?

Accepted Answer

A hub forwards data to all ports; a switch forwards only to the destination port

Answer

A hub broadcasts data to all connected devices, while a switch uses MAC address tables to forward frames only to the intended recipient's port.

Question 2

Which protocol operates at the Network layer and is used to report error conditions?

Accepted Answer

ICMP

Answer

ICMP (Internet Control Message Protocol) operates at the Network layer and is used to send error messages and operational information, as used by the ping command.

Question 3

What does a subnet mask define?

Accepted Answer

Which portion of an IP address identifies the network vs. host

Answer

A subnet mask uses binary 1s to identify the network portion and binary 0s to identify the host portion of an IP address.

Question 4

What is the well-known port number for HTTPS?

Accepted Answer

443

Answer

HTTPS uses port 443 by default, providing encrypted web communication over TLS/SSL.

Question 5

Which routing protocol uses the Bellman-Ford algorithm?

Accepted Answer

RIP

Answer

RIP (Routing Information Protocol) uses the Bellman-Ford distance-vector algorithm to calculate shortest paths between routers.

BCS - Bachelor Of Computer Science Degree Practice Test

BCS - Bachelor Of Computer Science Degree Practice Test

BCS Computer Networks 2