21) At network layer protocol defined by TCP/IP is
a) TCP
b) UDP
c) IP
d) none of the above
22) Which one is the least expensive that can support 100 Mbps?
a) Coaxial
b) UTP
c) Fiber-optic
d) STP
23) In TCP, a unique sequence number is assigned to each
a) Byte
b) Word
c) Segment
d) Message
24) Which protocol is used to convert IP address to MAC address?
a) IP
b) RARP
c) in ARP
d) ARP
25) Which protocol use link state routing
a) BGP
b) OSPF
c) RIP
d) none of the above
26) A subnet mask in class a can have _________ 1’s with the remaining bits 0’s.
a) 8
b) 4
c) 33
d) 3
27) Which IP class provides the fewest numbers of hosts?
a) Class A
b) Class B
c) Class C
d) Class D
28) Which protocol is exterior routing?
a) BGP
b) OSPF
c) RIP
d) None of these
29) Which protocol use distance vector routing?
a) OSPF
b) BGP
c) RIP
d) PPP
30) Class _______ has the greatest number of hosts per given network address.
a) B
b) A
c) D
d) C
31) A subnet mask in class A has fourteen 1’s. How many subnet does it define?
a) 32
b) 8
c) 64
d) 128
32) Who can send ICMP error-reporting messages ?
a) Routers
b) Destination hosts
c) Source host
d) both a and c
Best Of Luck!!