For what reason are reverse-ordered numbers not necessary in ACK packets?

The acknowledgment number in a TCP segment is the sequence number of what

If the destination port field of a TCP segment contains the binary number 0000000001010000 what protocol is being used?

If the TCP and IP headers contain no options, what will the MTU be given a MSS value of 492?

Do you have any thoughts on the issues I've posed below? What do you think? This is because the alternating-bit protocol is equivalent to the SR protocol when both the sender's and receiver's window sizes are 1.

Suppose the sequence number field on a TCP packet is 46005. The packet carries 102 bytes of (application-layer) data. The TCP header size on this packet is 20 bytes. (a) What is the sequence number of the last application byte contained in the packet above? (b) What is the value of the acknowledgment number field on the ACK that the receiver generates for the packet above?  (c) Do you have sufficient information in this question to determine the value of the sequence number field of the ACK packet that the receiver generates for the packet above? If so, what is the sequence number? If not, why not?   (d) If the size of the TCP header were larger (e.g., 24 bytes, due to additional TCP options), would your answers to parts (a)–(c) change? Why or why not?

The following is a TCP (tranmission control protocol) header.  How do I read it?  What does each bit mean? c62800163d36b20c05087f6e7002ffff7bb70000

Since TCP uses sequence numbers for the data it is sending, there is no need to include the port in the TCP header. Select one: o True O False

Suppose Alice and Bob are going to communicate using AES in CBC mode. Unfortunately Alice's message length (in bytes) is not a multiple of 16. Suppose the last block of her message is just a single zero byte. How can she pad out the last block so that she can use CBC mode? Since this needs to be a reversible operation, how does Bob recognize the padding and remove it?

What is the rationale behind the absence of sequential numbering in ACK packets?