Quizzes

Question 1

What is the primary purpose of data communication?

Answer 1

To exchange information between devices

Question 2

What is the basic unit of data transmission in a network?

Answer 2

a bit

Question 3

Which of physical media generally offers the highest transmission speeds?

Answer 3

Fiber optic cable

Question 4

What does LAN stand for?

Answer 4

Local Area Network

Question 5

What is a network protocol?

Answer 5

A set of rules for Communication

Question 6

In a client-server model, Which device typically requests services?

Answer 6

The client

Question 7

What is the function of a network interface card (NIC)?

Answer 7

To provide a physical connection between a computer and the network medium.

Question 8

Which layer of the TCP/IP model is responsible for providing reliable connection-orienteed communication between applications?

Answer 8

Transport Layer

Question 9

Which protocol operates at the transport layer and is known for its connectionless and unreliable nature?

Answer 9

UDP (User Datagram Protocol)

Question 10

True/False:
The application layer interacts directly with the hardware of the network.

Answer 10

False

Question 11

What is a primary benefit of using a layered architecture in data communication?

Answer 11

Reduced network complexity through modularity

Question 12

In the TCP/IP model, which layer is responsible for providing reliable, connection-oriented communication?

Answer 12

Network (Data Link) Layer

Question 13

Protocols like HTTP(Hyper-Text Transfer Protocol), FTP (File Transfer Protocol), and SMTP (Simple Mail Transfer Protocol) operate at which level of the TCP/IP model?

Answer 13

Application Layer

Question 14

The process of adding headers to data as it moves down the layers of the TCP/IP model is called:

Answer 14

Encapsulation

Question 15

True/False:
UDP (User Datagram Protocol) operates at the Network Layer of the TCP/IP model.

Answer 15

False

Question 16

True/False:
IP addresses are logical addresses used at the Transport Layer for identifying applications.

Answer 16

False

Question 17

True/False:
Layering in network models helps in troubleshooting network issues by isolating the problem to a specific layer.

Answer 17

True

Question 18

True/False:
MAC addresses are globally unique and are assigned to network interfaces by network administrators.

Answer 18

False

Question 19

True/False:
The concepts of “sockets” in network programming typically involves an IP address and a port number and is associated with the Application Layer only.

Answer 19

False

Question 20

What is the significance of the Maximum Transmission Unit (MTU)?

Answer 20

It determines the maximum size of a data unit that can e transmitted without fragmentation.

Question 21

Which encoding technique representa a binary ‘0’ with alternating positive and negative voltages, and a binary ‘1’ with zero voltage?

Answer 21

Psudoternary

Question 22

Differential Manchester encoding relies on a transition in the middle of the bit interval for:_________________________.

Answer 22

Providing a clocking mechanism.

Question 23

True/False
AMI encoding inherently provides a DC component in the transmitted signal.

Answer 23

False

Question 24

True/False
Scrambling techniques substitutes a specific number of zero sequence with a pattern that includes bipolar violations to maintain synchronization.

Answer 24

True