Question: The following true/false questions pertain to Figure 8.28. a. When a host in 172.16.1/24 sends a data-gram to an Amazon.con, server, the router Rl will

The following true/false questions pertain to Figure 8.28.

a. When a host in 172.16.1/24 sends a data-gram to an Amazon.con, server, the router Rl will encrypt the data-gram using IPsec.

b. When a host in 172. 16. 1/24 sends a data-gram to a host in 172. 16.2/24, the rouler R I will change the source and destination address of the IP data-grarn.

c. Suppose a host in 172.16.1/24 initiates a TCP connection to a Web server in 172.16.2/24. As part of this connection, all data-grarns sent by RI will have protocol number 50 in the left-most IPv4 header field.

d. Consider sending a TCP segment from a host in 172.16.1/24 to a host in 112.16.2/24. Suppose the acknowledgment for this segment gets lost, so that TCP resend the segment. Because IPsec uses sequence numbers, R I will not resend the TCP segment.

Figure 8.28

Headquarters Branch Office Internet 193.68.2.23 200.168.1.100 SA R2 R1 172.16.1/24 172.16.2/24

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