19. Which layer of the TCP/IP protocol stack is associated with each of the foll
ID: 3738858 • Letter: 1
Question
19. Which layer of the TCP/IP protocol stack is associated with each of the following? 16 pts a. Sending a packet to a directly connect host (on the same LAN) b. A browser requesting a web page. c. Converting a digital signal to analog. 20. Host A pings Host C, which is located on a different LAN. 4 pts) IP A ???? IP B MAC B IP C MACC In the reply received by Host A, what is: a) The source IP address b) The source MAC address 21. 11001100.00111100.10101010.01011001 Address1: 204.60.170.89 Netmask: 255.255.252.0 Address2: 204.60.169.3 11001100.08111100.10101001.e0000811 a. Write down the bits that represent the host part of Address 1. b. Write the network address of the subnet containing Address1 using CIDR notation. c. Is Address2 in the same subnet as Address1? d. Describe how to divide the subnet containing Address 1 into 4 equal sized subnets. 18 ptsl 2. A user runs the following command to count the number of files in the /var directory (3 pts) ls /var > WC However, no output is produced. Explain why this happened. 13 ptsl 23. Describe the result of executing the following Linux command: cat filel | grep exam1 | wc -1Explanation / Answer
19)
a) Network layer
b) Application layer
c) Physical Layer
20)
a) IP C
b) MAC B
21)
a) 11001100.00111100.101010[10.01011001]
b) 204.60.170.89/22
c) Yes, since all the net bits are same for both the adresses
d) Borrow 2 bits from host part to create 4 subnets i.e. [11001100.00111100.10101010].[01011001]
22) ls /var | wc -l Use this command instead which means first ls into var directory then count in the output. Operator > is used to redirect the output is like logging the output but wc does not actually operate upon the output of ls.
23) This command lists number of times exam1 has occurred in file1.
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