BCS Computer Networks

Question 1

Which layer of the OSI model is responsible for end-to-end communication and error recovery?

Accepted Answer

Transport layer

Answer

Network layer

Answer

Data Link layer

Answer

Session layer

Question 2

What does the acronym TCP stand for?

Accepted Answer

Transmission Control Protocol

Answer

Transfer Control Protocol

Answer

Terminal Connection Protocol

Answer

Transport Communication Protocol

Question 3

Which IP address class supports the largest number of hosts per network?

Accepted Answer

Class A

Answer

Class B

Answer

Class C

Answer

Class D

Question 4

What is the primary purpose of the Domain Name System (DNS)?

Accepted Answer

Translate domain names to IP addresses

Answer

Assign IP addresses dynamically

Answer

Encrypt web traffic

Answer

Route packets between networks

Question 5

Which protocol is used to automatically assign IP addresses to devices on a network?

Accepted Answer

DHCP

Answer

ARP

Answer

DNS

Answer

ICMP

Question 6

In a TCP three-way handshake, what is the correct sequence of messages?

Accepted Answer

SYN, SYN-ACK, ACK

Answer

SYN, ACK, SYN-ACK

Answer

ACK, SYN, SYN-ACK

Answer

SYN-ACK, SYN, ACK