Transport and Network Layer Quiz

Which of the following is true regarding TCP and UDP?

• TCP is connectionless, and UDP is connection-oriented

• TCP ensures reliability, and UDP does not

• Both TCP and UDP guarantee data delivery

• UDP requires a three-way handshake

What is the maximum segment size (MSS) in TCP typically?

• 536 bytes

• 1500 bytes

• 64 KB

• 1460 bytes

In TCP's three-way handshake, what is the second message sent by the server?

• SYN

• SYN-ACK

• ACK

• FIN

Which field in the TCP header is used for congestion control?

• Sequence Number

• Acknowledgment Number

• Window Size

• Checksum

What is the purpose of the TIME_WAIT state in TCP?

• To wait for a new connection

• To allow old duplicate packets to expire

• To handle retransmissions

• To prevent SYN flooding

Which of the following statements about UDP is false?

• UDP has no flow control mechanism

• UDP does not use a handshake mechanism

• UDP ensures ordered packet delivery

• UDP is used in DNS queries

Which protocol is used for secure communication over TCP?

• HTTP

• FTP

• TLS

• SSH

What is the default port for HTTPS?

• 80

• 443

• 25

• 8080

A socket is identified by:

• Port number only

• IP address only

• Combination of IP address and port number

• Protocol type

Which of the following ports is reserved for well-known services?

• 0 - 1023

• 1024 - 49151

• 49152 - 65535

• 10000 - 20000