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Free computer quiz Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. A networks that requires human intervention to route signals is called
(a)
Star networks
(b)
Ring networks
(c)
T-switched networks
(d)
Bus networks
2. Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undetected error?
(a)
Two bits or any even number of bits inverted in a byte during transmission
(b)
One bit or any odd number of bits inverted in a byte during transmission
(c)
Two bits or any even number of bits inverted in a block during transmission
(d)
One bit or any odd number of bits inverted in a block of data during transmission
3. One of the header fields in an IP datagram is the Time-to-live (TTL) field. Which of the following statements best explains the need for this field?
(a)
It can be used to prevent packet looping
(b)
It can be used to optimize throughput
(c)
It can be used to reduce delays
(d)
It can be used to prioritize packets
4. Communications software package enable users to access services such as
(a)
Electronic mail
(b)
Electronic bulletin boards
(c)
Video channels
(d)
Both (a) and (b)
5. What frequency range is used for micro-wave communications, satellite and radar?
(a)
Extremely high frequency : 30,000 MHz
(b)
Super high frequency : 3000 MHz to 30000 MHz
(c)
Medium frequency : 300 kHz to 3 MHz
(d)
Low frequency : 30 KHz to 300 kHz
6. Which of the following has the smallest default maximum physical receive packet size?
(a)
Token Ring [4 Mbps]
(b)
Token Ring [16 Mbps]
(c)
ARC net
(d)
Ethernet
7. Which of the following is not relevant to networking?
(a)
Bus hubs
(b)
Mesh network
(c)
Stackable hubs
(d)
Low-end stand alone hubs
8. Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undetected error?
(a)
Two bits or any even number of bits inverted in a byte during transmission
(b)
One bit or any odd number of bits inverted in a byte during transmission
(c)
Two bits or any even number of bits inverted in a block during transmission
(d)
One bit or any odd number of bits inverted in a block of data during transmission
9. Which of the following assertions is FALSE about the Internet protocol (IP)?
(a)
The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way
(b)
IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops
(c)
IP packets from the same source to the same destination can take different routes in the network
(d)
It is possible for a computer to have multiple IP addresses
10. The network operating system that does not support symmetric multi-processing (SMP) is
(a)
Banyan (VINES)
(b)
Novell network 3.X
(c)
SCO unix
(d)
Microsoft NT advanced server
