a. In TCP, port number fields are 16 bits long. How many possible port numbers are there?

25a.) In TCP, port number fields are 16 bits long. How many possible port numbers are there?

a. 16

b. 1,024

c. 16,384

d. 64,536

b. IPv6 addresses are 128 bits long. How many IPv6 addresses are there? Just represent the formula for calculating the value.

c. The IP version number field is 4 bits long. How many possible versions of IP can there be?

d. UDP length fields are 16 bits long. This field gives the number of bytes in the data field. How many bytes long may a UDP data field be?

e. ASCII has a 7-bit code. How many keyboard characters can it represent?

25e.) ASCII has a 7-bit code. How many keyboard characters can it represent?

a. 128

b. 256

c. 512

d. 1,024