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Online Computer Science Test - Networking Test 2

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is
the method of determining which device has access to the transmission medium at any time.
a medium access control technique for multiple access transmission media
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
All of the above
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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2.
How many hosts are attached to each of the local area networks at your site?
128
254
256
64
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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3.
A remote batch-processing operation in which data is solely input to a central computer would require a:
telegraph line
simplex lines
mixedband channel
All the above
None of the above
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(Not Answered)
Correct Answer: Option
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4.
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
Your Answer: Option
(Not Answered)
Correct Answer: Option
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5.
An error-detecting code inserted as a field in a block of data to be transmitted is known as
Frame check sequence
Error detecting code
Checksum
flow control
None of the above
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(Not Answered)
Correct Answer: Option
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6.
An encyclopedic database
is an information utility that specializes in storing and searching information
is generally free
is easy for beginners to use
All of the above
None of the above
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(Not Answered)
Correct Answer: Option
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7.
Which application allows a user to access and change remote files without actual transfer?
TELNET
NFS
FTP
DNS
None of the above
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(Not Answered)
Correct Answer: Option
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8.
The 32-bit internet address 10000000 00001010 00000010 00011110 will be written in dotted decimal notation as
148.20.2.30
164.100.9.61
210.20.2.64
128.10.2.30
None of the above
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(Not Answered)
Correct Answer: Option
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9.
What is the minimum number of wires needed to send data over a serial communication link layer?
1
2
4
6
none of the above
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10.
A communications device that combines transmissions from several 1/ O devices into one line is a:
concentrator
modifier
multiplexer
full-duplex line
None of the above
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11.
Which of the following program is used to copy files to or from another UNIX timesharing system over a single link?
VMTP
TFTP
UUCP
UART
None of the above
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(Not Answered)
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12.
What is the default subnet mask for a class B network?
127.0.01
255.0.0.0
255.255.0.0
255.255.255.0
None of the above
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(Not Answered)
Correct Answer: Option
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13.
Which of the following signals is not standard RS - 232-C signal?
VDR
RTS
CTS
DSR
None of the above
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14.
How many pairs of stations can simultaneously communicate on Ethernet LAN?
1
2
3
multiple
None of the above
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Correct Answer: Option
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15.
A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:
Network Server
Virtual Private Network
Network operating system
OSI
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(Not Answered)
Correct Answer: Option
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16.
With an IP address starting at 200, you currently have 10 subnets. What subnet mask should you use to maximize the number of available hosts?
192
224
240
248
252
Your Answer: Option
(Not Answered)
Correct Answer: Option
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17.
Which of the following is an example of bounded medium?
Coaxial cable
Wave guide
Fiber optic cable {d) All of the above
None of the above
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18.
Which of the following statements is correct?
characteristic of the hub architecture of ARC-net is alternative routing.
characteristic of LAN is unlimited expansion
characteristic of LAN is low cost access for low bandwidth channels
characteristic of the hub architecture of ARC-net is directionalized transmission
None of the above
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19.
Which of the following digits are known as the terminal number of the Network User Address (NUA)?
5-7
1-4
8-12
13-14
None of the above
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20.
The data-link layer, in reference to the OSI model, specifies
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
the virtual circuit interface to packet-switched service
All of the above
None of the above
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(Not Answered)
Correct Answer: Option
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