TCP and UDP Protocols: A Comprehensive Guide for Computer Network Administration

Question 1

Which of the following is a key characteristic of UDP that makes it suitable for applications like online gaming and video streaming?

Accepted Answer

UDP is generally faster than TCP.

Answer

UDP is a connection-oriented protocol.

Answer

UDP provides flow control.

Answer

UDP is suitable for applications that require guaranteed data delivery.

Question 2

Which protocol ensures reliable and sequential delivery of data?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

FTP

Question 3

What is the primary function of the sequence number in TCP?

Accepted Answer

To ensure correct packet ordering

Answer

To uniquely identify packets

Answer

To detect errors in transmission

Answer

To control data flow

Question 4

Which characteristic is NOT associated with TCP?

Accepted Answer

High bandwidth utilization

Answer

Reliability

Answer

Error control

Answer

Flow control

Question 5

UDP is commonly utilized for applications that prioritize:

Accepted Answer

Speed and efficiency

Answer

Reliability and error correction

Answer

Connection-oriented data transfer

Answer

High bandwidth utilization

Question 6

Which characteristic makes UDP a more suitable transport protocol for real-time applications like video conferencing compared to TCP?

Accepted Answer

Lower latency and jitter

Answer

Guaranteed in-order delivery of data

Answer

Efficient handling of large data transfers

Answer

Encryption and authentication mechanisms

Question 7

TCP employs a three-way handshake process to establish a reliable connection. Identify the correct sequence of the three segments exchanged during this handshake.

Accepted Answer

SYN -> SYN-ACK -> ACK

Answer

ACK -> SYN -> SYN-ACK

Answer

SYN-ACK -> SYN -> ACK

Answer

ACK -> ACK -> SYN

Question 8

When timeliness is paramount, which of the following is a key advantage of UDP over TCP?

Accepted Answer

Lower latency

Answer

Guaranteed data delivery

Answer

Efficient bandwidth utilization

Answer

Data transmission in a continuous stream

Question 9

Which protocol is ideal for applications that value high data transfer rates and can withstand occasional packet loss?

Accepted Answer

UDP

Answer

TCP

Answer

Both TCP and UDP

Answer

Neither TCP nor UDP

Question 10

TCP ensures reliable data delivery primarily through which mechanism?

Accepted Answer

Sliding window

Answer

Checksums

Answer

Flow control

Question 11

An application needs reliable data delivery and can handle some delay. Which protocol, TCP or UDP, is better suited for this application?

Accepted Answer

TCP

Answer

UDP

Question 12

What is the primary function of the three-way handshake in TCP?

Accepted Answer

Exchanging initial sequence numbers and acknowledging their receipt.

Answer

Implementing a challenge-response mechanism for authentication.

Answer

Protecting against replay attacks with unique identifiers.

Answer

Establishing a dedicated virtual circuit for data transfer.

Question 13

Which of the following is a defining characteristic of TCP?

Accepted Answer

Connection-oriented

Answer

Best-effort delivery

Answer

Message-oriented

Answer

Unreliable

Question 14

What is the primary role of the sequence number field in the TCP header?

Accepted Answer

To uniquely identify and order data segments within a TCP connection

Answer

To specify the source IP address of the sender

Answer

To determine the total number of data segments sent

Question 15

Which of the following is NOT a characteristic of UDP?

Accepted Answer

Guaranteed delivery

Answer

Message-oriented

Answer

Connectionless

Answer

Best-effort delivery

Question 16

For which type of applications is UDP typically the most appropriate protocol?

Accepted Answer

Applications that require low latency and can tolerate some data loss

Answer

Applications that involve secure file transfers

Answer

Applications that transmit large amounts of data

Question 17

What is a key distinction between TCP and UDP in terms of data handling?

Accepted Answer

TCP provides error correction and retransmission mechanisms, while UDP does not

Answer

TCP uses port numbers for addressing, while UDP uses IP addresses

Answer

TCP supports both unicast and multicast communication, while UDP only supports unicast

Question 18

What is the purpose of the checksum field present in both TCP and UDP headers?

Accepted Answer

To detect and correct errors in the header and data

Answer

To control the flow of data in the network

Answer

To specify the destination IP address of the packet

Answer

To indicate the sequence number of the segment

Question 19

Which advantage makes TCP a more suitable protocol for file transfer applications compared to UDP?

Accepted Answer

It ensures reliable and guaranteed delivery of data

Answer

TCP supports multicast communication, allowing data to be sent to multiple recipients simultaneously

Answer

TCP provides lower latency and faster data transfer

Question 20

Which of the following best describes the characteristics of TCP?

Accepted Answer

Reliable and connection-oriented

Answer

Unreliable and connectionless

Answer

Unreliable and connection-oriented

Answer

Reliable and connectionless

Question 21

What is the primary function of the UDP protocol?

Accepted Answer

Delivering datagrams without establishing a connection

Answer

Managing the flow of data packets across a network

Answer

Providing error correction for data packets

Answer

Ensuring the reliable delivery of data packets

Question 22

What is the key difference between a TCP segment and a UDP datagram?

Accepted Answer

TCP segments are acknowledged, ensuring reliable delivery, while UDP datagrams are not.

Answer

UDP datagrams are acknowledged, ensuring reliable delivery, while TCP segments are not.

Answer

TCP segments are larger than UDP datagrams.

Question 23

Which of these applications would most likely utilize UDP?

Accepted Answer

Video streaming

Answer

Email

Answer

Web browsing

Answer

File transfer

Question 24

What is the purpose of the checksum in a TCP segment?

Accepted Answer

To detect errors that might have occurred during transmission

Answer

To guarantee the order in which segments are received

Answer

To establish a secure connection between two endpoints

Answer

To regulate the flow of data between sender and receiver

Question 25

Which feature is NOT supported by the TCP protocol?

Accepted Answer

Multicasting

Answer

Error correction

Answer

Flow control

Answer

Congestion control

Question 26

What is the key difference between TCP states and UDP states?

Accepted Answer

TCP maintains connection states to track the communication, while UDP does not.

Answer

TCP states are more complex than UDP states.

Answer

UDP maintains connection states to track the communication, while TCP does not.

Question 27

Which of the following is an advantage of using UDP over TCP?

Accepted Answer

Lower overhead due to less complex communication

Answer

Guaranteed delivery of data packets

Answer

Efficient data flow management with congestion control

Answer

Increased reliability with error detection and correction

Question 28

What is the purpose of the SYN flag in a TCP segment?

Accepted Answer

To initiate a connection between two devices

Answer

To acknowledge the successful receipt of a segment

Answer

To terminate an existing connection

Answer

To request a retransmission of a lost segment