a. How long are sequence and acknowledgment numbers?

24a.) Sequence numbers are ______ bits long

a. 8

b. 16

c. 24

d. 32

b. How many flag fields do TCP headers have?

24b1.) One-bit fields are called ______ fields.

a. SYN

b. Flag

c. ACK

d. None of the above

24b2.) TCP has ______ flag field(s).

a. 1

b. 2

c. 6

d. 9

24b3.) If someone says that a 1-bit flag is not set, this means that its value is ______.

a. 0

b. 1

c. blank

d. It cannot be determined from the information given.

c. If the ACK bit is set, what other field must have a value?