A Network is shown in the following figure. Please answer the questions based on

Question

A Network is shown in the following figure. Please answer the questions based on the configuration given in the figure Web Server B 98.138.134.10/20 22:22:22:11:22:B Host D 128.9.10.93/28 22:22:22:11:22:66 WAN Radio Interface 28.9.10.96/28 22:22:22:11:22:CC Internet Interface B 110.96.128,1/20 22:22:22:11:22:BB Radio Interface 28.9.10,80/28 22:22:22:11:22:DD e A 134.11,128.1/20 22:22 22:11:22 AA Web Server A 134-16 1 . I 30.4/20 22:22:22:11:22:33 Host B 34.161.131.2/20 22:22:22:11:2244 Host C 34.161.132.0/20 22:22:22:11:22:55 DHCP and DNS server 34.161.130.1/20 22:22:22:11:22:1 1) For the following questions, assume the hosts have the entry of server A and B in their DNS cache a) If Host C needs to send a DNS request to the Server, specify the MAC and IP address for the frame leaving Host C Destination MAC addresS Source MAC address Destination IP address b) If Host B needs to send a HTTP request to Server B, specify the MAC and IP address for the frame leaving Host B Destination MAC addresS Source MAC address

Explanation / Answer

1.) a.) Destination MAC Address: 22:22:22:11:22:33

Source MAC Address: 22:22:22:11:22:55

Destination IP Address: 134.161.130.4/20

b.) Destination MAC Address: 22:22:22:11:22:AA

Source MAC Address: 22:22:22:11:22:44

Destination IP Address:98.138.130.10/20

2.) First Host C will get its IP from DHCP server and then search for the IP for web server A in the DNS server and then compares the network part. If host and server are on the same network, it asks for the MAC address of the Web server A using ARP request and then sends the HTTP request to Web Server A. Otherwise it asks for the MAC address of the default gateway and send the request to the default gateway.

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