Class Test questions of computer networking or internet and intranet application

Class Test 2

F.M 20 P.S 10

1 Which if the following address is the broadcast address of the class b ip address
a. 147.255.255.255 b. 147.14.255.255
c. 147.13.0.0 d. 147.1.1.1
2 How many host addresses are available to a class C network
a 254 b 255
c 256 d 128
3 How many useable subnets are created in a class C network when 5 bits are borrowed
a 14 b 16
c 30 d 32
4 What is the minimum no of bits that can be borrowed to form useable subnets
a.1 b 2
c 4 d 8
5 How many bits are in a subnet mask
a. 16 b. 32
c. 64 d. 128
6 What is the maximum no of bits that can be borrowed to create the subnets in a class C network
a. 2 b 4
c 6 d 7
7 With an ipaddress 202.211.19.162 and a subnet mask of 255.255.255.224 how many bits have been borrowed to create subnets
a. 1 b. 2
c. 3 d. 4
8 What is the subnet of the class B address when 4 bits are borrowed?
a. 255.240.0.0 b. 255.255.0.0
c. 255.255.240.0 d. 255.255.255.0
9 For what purpose does the router perform the logical AND using the destination host’s ip address and subnet mask ?
a. to derive the host numbers so it knows where to send the packet
b. to derive the subnet mask and compare it with information in routing table
c. to determine the destination network and the subnet address
d to compare the source address with the routing table
10 Packets are encapsulated in the frames in which layer of the OSI model
a Data Link Layer b. Network Layer
c. Transport Layer d. Session Layer


11. Explain the various classes of IP address with suitable example [6]
12 What is the function of DNS server [2]
13 What is the function of the proxy server [2]