R4RIN – MCQs, Mock Tests | MCA Computer Network MCA Question MCQ Set 8

Two broad categories of congestion control are

1. Open-loop and Closed-loop
2. Open-control and Closed-control
3. Active control and Passive control
4. Active control and Passive control

✅ Correct Answer: 1

In open-loop control, policies are applied to _____

1. Remove after congestion occurs
2. Remove after sometime
3. Prevent before congestion occurs
4. Prevent before sending packets

✅ Correct Answer: 3

Retransmission of packets must not be done when _______

1. Packet is lost
2. Packet is corrupted
3. Packet is needed
4. Packet is error-free

✅ Correct Answer: 4

In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. Whereas in Selective Repeat window, the sender resends _______

1. Packet which are not lost
2. Only those packets which are lost or corrupted
3. Packet from starting
4. All the packets

✅ Correct Answer: 2

Discarding policy is mainly done by _____

1. Sender
2. Receiver
3. Router
4. Switch

✅ Correct Answer: 3

Closed-Loop control mechanisms try to _____

1. Remove after congestion occurs
2. Remove after sometime
3. Prevent before congestion occurs
4. Prevent before sending packets

✅ Correct Answer: 1

The technique in which a congested node stops receiving data from the immediate upstream node or nodes is called as _______

1. Admission policy
2. Backpressure
3. Forward signaling
4. Backward signaling

✅ Correct Answer: 2

Backpressure technique can be applied only to _______

1. Congestion networks
2. Closed circuit networks
3. Open circuit networks
4. Virtual circuit networks

✅ Correct Answer: 4

The packet sent by a node to the source to inform it of congestion is called _______

1. Explicit
2. Discard
3. Choke
4. Backpressure

✅ Correct Answer: 3

In the slow-start algorithm, the size of the congestion window increases __________ until it reaches a threshold.

1. exponentially
2. additively
3. multiplicatively
4. suddenly

✅ Correct Answer: 1

In the congestion avoidance algorithm, the size of the congestion window increases ______ until congestion is detected.

1. exponentially
2. additively
3. multiplicatively
4. suddenly

✅ Correct Answer: 2

Which of the following is not a characteristic of Virtual Circuit Network?

1. There are setup and teardown phases in addition to the data transfer phase
2. Resources can be allocated during setup phase or on demand
3. All packets follow the same path established during the connection
4. Virtual circuit network is implemented in application layer

✅ Correct Answer: 4

The address that is unique in the scope of the network or internationally if the network is part of an international network is called as ______

1. Global address
2. Network address
3. Physical address
4. IP address

✅ Correct Answer: 1

The Identifier that is used for data transfer in virtual circuit network is called _______

1. Global address
2. Virtual circuit identifier
3. Network identifier
4. IP identifier

✅ Correct Answer: 2

Which of the following is not a phase of virtual circuit network?

1. Setup phase
2. Data transfer phase
3. Termination phase
4. Teardown phase

✅ Correct Answer: 3

Steps required in setup process are _____

1. Setup request and acknowledgement
2. Setup request and setup response
3. Setup request and setup termination
4. Setup and termination steps

✅ Correct Answer: 1

During teardown phase, the source, after sending all the frames to destination, sends a _____ to notify termination.

1. teardown response
2. teardown request
3. termination request
4. termination response

✅ Correct Answer: 2

Delay of the resource allocated during setup phase during data transfer is ________

1. constant
2. increases for each packet
3. same for each packet
4. different for each packet

✅ Correct Answer: 3

Delay of the resource allocated on demand during data transfer is ________

1. constant
2. increases for each packet
3. same for each packet
4. different for each packet

✅ Correct Answer: 4

In virtual circuit network, the number of delay times for setup and teardown respectively are _______

1. 1 and 1
2. 1 and 2
3. 2 and 1
4. 2 and 2

✅ Correct Answer: 1

In data transfer phase, how many columns does the table contain?

1. 1
2. 2
3. 3
4. 4

✅ Correct Answer: 4

ATM and frame relay are ________

1. virtual circuit networks
2. datagram networks
3. virtual private networks
4. virtual public networks

✅ Correct Answer: 1

ATM uses _______

1. asynchronous frequency division multiplexing
2. asynchronous time division multiplexing
3. asynchronous space division multiplexing
4. asynchronous amplitude division multiplexing

✅ Correct Answer: 2

ATM standard defines _______ layers.

1. 2
2. 3
3. 4
4. 5

✅ Correct Answer: 2

ATM can be used for ________

1. local area network
2. wide area network
3. campus area network
4. networks covering any range

✅ Correct Answer: 4

An ATM cell has the payload field of _________

1. 32 bytes
2. 48 bytes
3. 64 bytes
4. 128 bytes

✅ Correct Answer: 2

Frame relay has error detection at the ______

1. physical layer
2. data link layer
3. network layer
4. transport layer

✅ Correct Answer: 2

Virtual circuit identifier in frame relay is called ______

1. data link connection identifier
2. frame relay identifier
3. cell relay identifier
4. circuit connection identifier

✅ Correct Answer: 1

In frame relay networks, extended address is used _______

1. to increase the range of data link connection identifiers
2. for error detection
3. for encryption
4. for error recovery

✅ Correct Answer: 1

What is FRAD in frame relay network?

1. FRAD assembles and disassembles the frames coming from other protocols
2. FRAD is used for modulation and demodulation
3. FRAD is used for error detection
4. FRAD is used for error recovery

✅ Correct Answer: 1

Frame Relay is cheaper than other _____

1. LANs
2. WANs
3. MANs
4. Multipoint Networks

✅ Correct Answer: 2

Frame Relay networks offer an option called _______

1. Voice Over For Relay
2. Voice Over Fine Relay
3. Voice On Frame Relay
4. Voice Over Frame Relay

✅ Correct Answer: 4

There are ________ total features of Frame Relay.

1. Five
2. Seven
3. Nine
4. Ten

✅ Correct Answer: 3

Frame Relay does not provide flow or error control, they must be provided by the ______

1. Lower Level Protocol
2. Highest Level Protocol
3. Upper Level Protocol
4. Lowest Level Protocol

✅ Correct Answer: 3

Frame Relay deploys physical layer carriers such as _______

1. ADMs
2. UPSR
3. BLSR
4. SONET

✅ Correct Answer: 4

Frame relay provides error detection at the ______

1. physical layer
2. data link layer
3. network layer
4. transport layer

✅ Correct Answer: 2

Virtual circuit identifier in frame relay is called _______

1. data link connection identifier
2. frame relay identifier
3. cell relay identifier
4. circuit connection identifier

✅ Correct Answer: 1

Frame relay has only _______

1. physical layer
2. data link layer
3. physical layer and data link layer
4. network layer and data link layer

✅ Correct Answer: 3

In frame relay networks, extended address is used ________

1. to increase the range of data link connection identifiers
2. for error detection
3. for encryption
4. for error recovery

✅ Correct Answer: 1

A piece of icon or image on a web page associated with another webpage is called ______

1. url
2. hyperlink
3. hyperlink
4. extension

✅ Correct Answer: 2

Dynamic web page ______

1. is same every time whenever it displays
2. generates on demand by a program or a request from browser
3. both is same every time whenever it displays and generates on demand by a program or a request from browser
4. is different always in a predefined order

✅ Correct Answer: 3

What is a web browser?

1. a program that can display a web page
2. a program used to view html documents
3. it enables user to access the resources of internet
4. All of the mentioned

✅ Correct Answer: 4

Common gateway interface is used to _______

1. generate executable files from web content by web server
2. generate web pages
3. stream videos
4. download media files

✅ Correct Answer: 1

URL stands for ________

1. unique reference label
2. uniform reference label
3. uniform resource locator
4. unique resource locator

✅ Correct Answer: 3

A web cookie is a small piece of data that is _______

1. sent from a website and stored in user’s web browser while a user is browsing a website
2. sent from user and stored in the server while a user is browsing a website
3. sent from root server to all servers
4. sent from the root server to other root servers

✅ Correct Answer: 1

Which one of the following is not used to generate dynamic web pages?

1. PHP
2. ASP.NET
3. JSP
4. CSS

✅ Correct Answer: 4

An alternative to JavaScript on windows platform is _______

1. VBScript
2. ASP.NET
3. JSP
4. php

✅ Correct Answer: 1

What is document object model (DOM)?

1. convention for representing and interacting with objects in html documents
2. application programming interface
3. hierarchy of objects in ASP.NET
4. scripting language

✅ Correct Answer: 1

AJAX stands for _______

1. asynchronous javascript and xml
2. advanced JSP and xml
3. asynchronous JSP and xml
4. advanced javascript and xml

✅ Correct Answer: 1

Which of the following is not applicable for IP?

1. Error reporting
2. Handle addressing conventions
3. Datagram format
4. Packet handling conventions

✅ Correct Answer: 1