NPTEL Quiz-2

Which of the following statement(s) is/are correct concerning to the TCP acknowledgement number?
I. It is a 16-bit number.
II. It contains the sequence number of the previous bytes the receiver has received. 

• Only I
  

• Only II
  

• Both I and II
  

• None of them are correct

If maximum network layer payload size is 2KB, what is the maximum TCP payload size? 

• 2048 bytes
  

• 2028 bytes
  

• 2008 bytes
  

• 1988 bytes

Packets of the same session may be routed through different paths in 

• Both TCP and UDP
  

• Neither TCP nor UDP
  

• TCP, but not UDP
  

• UDP, but not TCP

Which of the following system calls results in the sending of SYN packets? 

• socket
  

• listen
  

• bind
  

• connect

Which of the following statement(s) is/are true for the Transport Layer?
I. Transport layer protocol should be stateful
II. Uses FTP protocols for ensuring flow control 

• Only I.
  

• Only II
  

• Both I and II
  

• None of the themes

Which of the following is helpful to avoid a TCP-SYN flood attack? Use of cryptographic function to generate sequence numbers for TCP connection is helpful to avoid? 

• Two-way handshaking
  

• Checksum
  

• Cryptographic functions
  

• None of these

What is/are the parameters responsible for restricting TCP segment size? 

• IP address
  

• IP payload
  

• Maximum Transmission Unit (MTU) of the link
  

• Acknowledgement number field size

"For effective congestion avoidance, the sending rate of the network should be the minimum of the second network rate and receiver rate"
The above statement is: rate.

• true
  

• false

TCP supports broadcasting 

• The above statement is correct
  

• The above statement is wrong

Which is the default port number for establishing an HTTP (Apache HTTP server) connection? 

• 43 

• 44

• 443

• None of these