INSTRUCTIONS-1. NUMBER OF QUESTIONS 252. HAS A TIME LIMIT OF 15 MINUTES3. HAS A PASS MARKS OF 30%4. QUESTIONS PER PAGE 15. EACH QUESTIONS HAS 1 MARKS6. NEGATIVE MARKING FOR EACH QUESTIONS IS 0. 257. WILL ALLOW TO YOU GO BACK ,SKIP AND CHANGE YOUR ANSWERS8. WILL ALLOW TO YOU PRINT OUT YOUR RESULT AND CERTIFICATE 9. WILL ALLOW TO YOU PRINT OUT YOURS RESPONSE SHEET WITH CORRECT ANSWER KEY AND EXPLANATION.
Duplex and symmetrical.
Duplex and asymmetrical.
Simplex and asymmetrical
simplex and symmetrical
circuit switched network
cell switched network
packet switched network
None
determines on which outgoing link a packet is to be forwarded.
forwards a packet to the next free outgoing link.
Forwards a packet to all outgoing links
forwards a packet to all outgoing links, except the link upon which the packet originated.
Packet switched network
Cell switched network
Circuit switched network
None
which is relatively short.
by means of wires.
at a different band of frequencies
without any change in frequency.
To combine the signals associated with the microphone and speaker.
to interconnect the 4 wires of a telephone to a line.
to merge/separate signals associated with the microphone and speaker.
None
DHCP enables a NIC to determine the IP address for a given MAC address.
DHCP is a technique whereby IP addresses are assigned centrally by a server to each host
DHCP enables a NIC to determine the MAC address for a given IP address
DHCP is a routing protocol run by routers within a network
Remove the need for a user to indicate a host they wish to communicate with by means of an IP address
Determine the symbolic name of a host, given its IP address
Determine the IP address of a host, given its MAC address
Determine the MAC address of a host, given its IP address.
simplex
half duplex
full duplex
None of the above
1
2
4
6
Wide band channel
voice band channel
narrow band channel
Broadband channel
Simplex lines
Wide band channel
narrow band channel
dialed service
Concentrator
Modifier
Full-duplex line
Multiplexer
equalizer
Modulator
demodulator
terminal
narrow band channel
Simplex lines
Full duplex lines
Mixed band channel
A packet may be lost
Packets may arrive out of order
Duplicate packets may be generated
All of the above
16 bytes
10 bytes
20 bytes
32bytes
TCP
IP
UDP
All of these
32 bit
64 bit
128 bit
256 bit
The physical boundary of Network
An operating system of computer network
A system designed to prevent unauthorized access
A web browsing Software
Protocol defines what data is communicated
Protocol defines how data is communicated
Protocol defines when data is communicated
All of these
It divides one large network into several smaller ones
It divides network into network classes
it speeds up the speed of network
None of these
Physical layer
Data link layer
Network layer
Transport layer
8 bit
16 bit
32 bit
64 bit
Transmission capacity of a communication channels
Connected computers in the network
Class of IP use in Network
None of these