Exam 2

Question 1

What is the primary function of the data link layer?

Answer 1

Providing error detection and correction within a single physical link

Question 2

Which sublayer of the data link layer controls which device sends data and when?

Answer 2

Media Access Control (MAC)

Question 3

Which protocol operates at the data link layer and is commonly used for wired local area networks (LANs)?

Answer 3

Ethernet

Question 4

Which of the following is NOT a function of the data link layer?

Answer 4

Logical addressing

Question 5

What is the maximum size of an Ethernet frame in bytes?

Answer 5

1500

Question 6

What is the primary function of the transport layer?

Answer 6

Providing reliable end-to-end communication over the network

Question 7

Which protocol operates at the transport layer and is responsible for reliable, connection-oriented communication?

Answer 7

TCP (Transmission Control Protocol)

Question 8

Which transport layer protocol is connectionless and does not provide reliability or flow control?

Answer 8

UDP (User Datagram Protocol)

Question 9

Which mechanism is used in TCP to ensure reliable data delivery?

Answer 9

Sequence numbers and acknowledgements

Question 10

Which transport layer protocol is commonly used for real-time multimedia streaming and online gaming due to its low overhead?

Answer 10

UDP (User Datagram Protocol)

Question 11

What is the primary function of the network layer?

Answer 11

Routes data packets between different networks

Question 12

Which protocol operates at the network layer and is responsible for addressing and routing packets across multiple networks?

Answer 12

IP (Internet Protocol)

Question 13

What is the size of an IPv4 address in bits?

Answer 13

32 bits

Question 14

Which routing algorithm calculates the shortest path to a destination based on the number of hops, traffic congestion and circuit speed of each path?

Answer 14

Link-state routing

Question 15

Which protocol is responsible for dynamically assigning IP addresses to devices on a network?

Answer 15

DHCP (Dynamic Host Configuration Protocol)

Question 16

In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___

Answer 16

Added

Question 17

e commerce is a part of

Answer 17

Enterprise Edge

Question 18

LAN belongs to

Answer 18

Access Layer

Question 19

What does the Turnpike Effect refer to in network design?

Answer 19

The concept of increasing traffic demands than what has been forecasted