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Networking Miscellaneous
Quiz 14
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Q.1
In a broad Sense, a railway track is an example of
Simplex
Half Duplex
Full Duplex
All of these
Q.2
"BAUD" rate means
The number of bits transmitted per unit time.
The number of bytes transmitted per unit time.
The rate at which the signal changes.
None of the above
Q.3
Start and stop bits are used in serial communication for
Error detection
Error correction
Synchronization
Slowing down the communication
Q.4
Unmodulated signal coming from a transmitter is know as
Carrier signal
Baseband signal
Primary signal
None of these
Q.5
How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?
300
240
250
275
Q.6
Which one of the following network uses dynamic or adaptive routing?
TYMNET
ARPANET
SNA(IBM's System Network Architechture)
None of these
Q.7
Protocols are
Agreements on how communication components and DTE
Logical communication channels used for transferri
Physical communication channels used for transferr
None of the above
Q.8
The method of communication in which transmission takes place in both directions, but only one direction at a time is called
Simplex
Four wire circuit
Full Duplex
Half Duplex
Q.9
Error detection at the data link level is achieved by
Bit Stuffing
Cyclic Redundancy Code
Hamming Code
Equalization
Q.10
Error detection at a data link level is achieved by
bit stuffing
cyclic redundancy codes
Hamming codes
equalization
None of the above
Q.11
When the computer provides the manager with a multiple choice of possible answers, the prompting technique is
question and answer
form filling
open-ended question
menu selection
None of the above
Q.12
Which of the following is a wrong example of network layer?
Internet Protocol (IP) - ARPANET
X.25 Packet Level Protocol (PLP)-ISO
Source routing and domain naming-USENet
X.25 level 2-ISO
Q.13
The topology with highest reliability is:
Bus topology
Star topology
Ring topology
Mesh topology
Q.14
Which network topology is considered passive?
Cross
Ring
Star
Mesh
Bus
Q.15
If a firm wanted to transmit data from 1,000 punched cards to a remote computer, they would use a(n)
POS terminal
data collection terminal
batch processing terminal
intelligent terminal
None of the above
Q.16
Which address is the loopback address?
0.0.0.1
127.0.0.0
127.0.0.1
255.255.255.255
None of the above
Q.17
Which of the following technique is used for encapsulation?
a technique used in best-effort delivery systems to avoid endlessly looping packets.
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
All of the above
None of the above
Q.18
You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?
255.255.252.0
225.255.254.0
255.255.255.240
255.255.255.252
Q.19
With an IP address set starting with 150, you currently have six offices that you are treating as subnets. Plans are in place to open 10 more offices before the end of the year. What subnet mask should you use to satisfy the needed number of subnets and maximize the number of hosts available at each site?
192
224
240
248
252
Q.20
Which of the following best illustrates the default subnet mask for a class A,B, and C Network?
0.0.0.0, 0.0.0.1, 0.0.1.1
255.255.255.0, 255.255.0.0, 255.0.0.0
255.0.0.0, 255.255.0.0, 255.255.255.0
255.255.0.0, 255.255.255.0, 255.255.255.255
None of the above
Q.21
Modulation is the process of
converting analog signals to digital signals
converting digital signals to analog signals
Multiplexing various signals into high speed line signals
performing data encryption.
Q.22
Devices interconnected by the LAN should include
Computers and terminals
mass storage device, printers and plotters
bridges and gateways
All of the above
None of the above
Q.23
A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as
Gateways
mail gateway
bridges
User Agent
None of the above
Q.24
If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is
1200 bands
3200 bands
4800 bands
9600 bands
None of the above
Q.25
What are the data transmission channels available for carrying data from one location to another?
Narrowband
Voiceband
Broadband
All of the above
None of the above
Q.26
On a class B network, how many hosts are available at each site with a subnet mask of 248?
16,382
8,190
4,094
2,046
1,022
Q.27
If delays are recorded as 10 bit numbers in a 50 router network, and delay vectors are exchanged twice a second, how much bandwidth per fill duplex line is occupied by the distributed routing algorithm?
500 bps
1500 bps
5 bps
1000 bps
None of the above
Q.28
HOSTS file entries are limited to how many characters?
8
255
500
Unlimited
None of the above
Q.29
Demodulation is the process of
converting digital signals to analog signals
converting analog signals to digital signals
combining many low speed channels into one high speed channel
dividing the high-speed signals into frequency bands
None of the above
Q.30
Which of the following statement is incorrect?
The Addresses Resolution Protocol, ARP, allows a host to find the physical address of a target host on the same physical network, given only the target IP address.
The sender's IP - to- physical address binding is included in every ARP broadcast; receivers update the IP-to-Physical address binding information in their cache before processing an ARP packet.
ARP is a low-level protocol that hides the underlying network physical addressing, permitting us to assign IP-addresses of our choice to every machine.
All of the above
None of the above
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