Computer networking MCQ questions for GATE/NET

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Computer networking MCQ

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do you mean by broadcasting in Networking?
A
It means addressing a packet to all machine
B
It means addressing a packet to some machine
C
It means addressing a packet to a particular machine
D
It means addressing a packet to except a particular machine
Question 1 Explanation: 
In computer networking, broadcasting refers to transmitting a packet that will be received by every device on the network. Broadcasting may be performed as all scatter in which each sender performs its own scatter in which the messages are distinct for each receiver, or all broadcast in which they are the same.
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
all workstations are connecting directly to the main backbone that carries the data.
A
BUS TOPOLOGY
B
RING TOPOLOGY
C
STAR TOPOLOGY
D
None of the above
Question 2 Explanation: 
With the Bus topology, all workstations are connect directly to the main backbone that carries the data. Traffic generated by any computer will travel across the backbone and be received by all workstations.
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
EIGRP metric is.....
A
K-values
B
Bandwidth only
C
Hop Count
D
Delay only
Question 3 Explanation: 
EIGRP metric is K-values which are integers from 0 to 128. Routers use the metric of administrative distance to select the best path when there are different routes to the same destination from two different routing protocols as it is a measure of reliability of routing protocols.
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Demodulation is a process of
A
converting analog to digital signals
B
converting digital to analog signals
C
multiplexing various signals into one high speed line signals
D
performing data description.
Question 4 Explanation: 
Demodulation. The process of separating the original information or SIGNAL from the MODULATED CARRIER. In the case of AMPLITUDE or FREQUENCY MODULATION it involves a device, called a demodulator or detector, which produces a signal corresponding to the instantaneous changes in amplitude or frequency, respectively.
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of this is not a class of IP address?
A
ClassE
B
ClassC
C
ClassD
D
ClassF
Question 5 Explanation: 
The explanation: Class F is not a class of IP addressing. There are only five classes of IP addresses: Class A (0.0. 0.0 to 127.255. 255.255), Class B (128.0.
Question 6 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Services of WorldCo, M Sprint and Verizon are provided by
A
inter-LATA
B
intra-LATA
C
LATA
D
local exchange carrier
Question 7 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are major requirement considerations when implementing a basic network? (Choose all correct answers.)
A
Security considerations
B
Device types
C
Equipment limitations
D
All of the above
Question 8 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Transmission Control Protocol/Internet Networking Protocol have
A
Four Layers
B
Five Layers
C
Six Layers
D
Seven Layers
Question 8 Explanation: 
The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol (IP). TCP is connection-oriented, and a connection between client and server is established before data can be sent.
Question 9 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In classless addressing, we need at least
A
Two Columns
B
Three Columns
C
Four Columns
D
Five Columns
Question 9 Explanation: 
In classful addressing we can have a routing table with three columns; in classless addressing, we need at least four columns.
Question 10 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
..... are wireless network standard with a data rate of only 2 Mbps.
A
IEEE 802.11a
B
IEEE802.11b
C
IEEE803.11a
D
IEEE803.11b
Question 10 Explanation: 
2019 est. Wi-Fi 1/2/802.11/a/b. This was the original standard created in 1997. It only provided data throughput of 2 Mbps in the 2.4 Ghz frequency, which was too slow for most applications.
Question 11 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What REST stands for?
A
Represent State Transfer
B
Representational State Transfer
C
Represent State Transfer
D
None of the mentioned
Question 11 Explanation: 
A REST API (also known as RESTful API) is an application programming interface (API or web API) that conforms to the constraints of REST architectural style and allows for interaction with RESTful web services. REST stands for representational state transfer and was created by computer scientist Roy Fielding.
Question 12 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In cellular telephony, size of cell is not fixed, can be increased or decreased depending on population of
A
Signals
B
Area
C
Media Data
D
Stations
Question 13 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a datagram router goes down then.....
A
all packets will suffer
B
only those packets which are queued in the router at that time will suffer
C
only those packets which are not queued in the router at that time will suffer
D
no packets will suffer
Question 13 Explanation: 
if a datagram router goes down then only those packets which are queued in the router at that time will suffer.
Question 14 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Graft message forces upstream router to resume sending the
A
Multicast messages
B
Unicast messages
C
Multiple Unicast messages
D
Protocol messages
Question 15 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Used to retrieve emails from a server. The email stays on the server until user actually deletes it
A
IMAP
B
POP3
C
SMTP
D
HTTPS
Question 15 Explanation: 
In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection.
Question 16 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the secondary downloads information from the primary, it is called..... transfer.
A
domain
B
zone
C
label
D
none of the above
Question 16 Explanation: 
Que.When the secondary downloads information from the primary, it is called ______ transfer.
b.zone
c.label
d.none of the above
zone
Question 17 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Most data communications involving telegraph lines use:
A
simplex lines
B
wideband channels
C
narrowband channels
D
dialed service
Question 18 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Military vehicles on a battlefield with no existing infrastructure will deploy..... network.
A
MANET
B
Cell Network
C
LAN
D
Wi-Fi
Question 18 Explanation: 
Que.Military vehicles on a battlefield with no existing infrastructure will deploy network.
b.Cell Network
c.LAN
d.Wi-Fi
MANET
Question 19 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Four different attributes to control traffic have been devised in
A
Data Relay
B
Source Relay
C
Frame Relay
D
IP Relay
Question 20 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The disadvantages of mobile communication are
A
Fixed network needed for the base stations
B
Handover(changing from one cell to another) necessary
C
Handover(changing from one cell to another) necessary
D
All of these
Question 20 Explanation: 
However, there are numerous disadvantages of cellular phones when they're used in the workplace, from disrupting work to just plain wasting time.
  • Disruption of Workflow.
  • Difficulty Monitoring Calls.
  • Balance Between Work and Life.
  • Misuse of Cell Phones.
  • The Time Adds Up Quickly.
  • Banning Personal Cell Phone Use.
There are 20 questions to complete.

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