TCP Headers

Question 0

The 16-bit field identifies the port number the packet is destined for on the destination system.

Answer 0

Destination Port

Question 1

This 16-bit field identifies the port number of the sending system.

Answer 1

Source Port

Question 2

This 32-bit field identifies the sequence number of the packets.

Answer 2

Sequence Number

Question 3

The 32-bit field identifies the packet that this packet is acknowledging.

Answer 3

Acknowledgement number

Question 4

This 4-bit field indicates where the data begins.

Answer 4

Offset

Question 5

This 6-bit field is always set to 0 and was designed for future use.

Answer 5

Reserved

Question 6

This 6-bit field is where the TCP flags are stored. There is a 1-bit flag for each of the flags mentioned earlier in this section.

Answer 6

Flags

Question 7

This 16-bit field determines the amount of information that can be sent before an acknowledgment is expected.

Answer 7

Window size

Question 8

This 16-bit field is used to verify the integrity of the TCP header

Answer 8

Checksum

Question 9

This 16 bit field is used only if the URG flag is set and is a reference to the last piece of information that was urgent.

Answer 9

Urgent Pointer

Question 10

This is a variable-length field that specified any additional settings that may be needed in the TCP header.

Answer 10

Options