MCQ: Unit VI Computer Network

 

Computer Network MCQs

Some important Computer Network MCQs are mentioned here.

The standard documents of IETF are called
A. RCF
B. ID
C. RFC
D. Both A and B
E. None of these

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C

When the information packet moves from the higher to lower layers in layer hierarchy, headers are.
A. Removed
B. Rearranged
C. Modified
D. Added
E. None of these

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D

The format of data is called
A. Semantics
B. Struck
C. Syntax
D .Both A and B
E. None of the mentioned

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C

Computer and a keyboard involves¬_________________ transmission to communicate
A. Automatic
B. Simplex
C. Half-duplex
D. Full-duplex
E. None of these

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B

The first Network
A. ARPANET
B. CNNET
C. NSFNET
D. ASAPNET
E. None of these

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A

________ physical path is used to travel massages form one place to another
A. Path
B. Protocol
C. Route
D. Medium
E. None of these

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D

Which of this is not a network edge device?
A. Switch
B. PC
C. Smartphones
D. Servers
E. None of these

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A

A set of rules that governs data communication
A. Standards
B. RFCs
C. Protocols
D. None of these
E. Both A and B

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C

In which connection, three or more devices share a link
A. Unipoint
B. Point to point
C. Multipoint
D. None of these
E. Both A and C

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C

When a variety of varied PC’s work in a single coherent system to its consumer, then it’s known as
A. computer network
B. networking system
C. distributed system
D. Both A and B
E. none of the mentioned

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C

Two devices are in network if
A. a process is running on both devices
B. PIDs of the processes running of various devices area unit same
C. a method in one device is in a position exchange data with a method in another device
D. None of these
E. Both A and B

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C

Which network is built on the top of other networks?
A. overlay network
B. prior network
C. chief network
D. prime network
E. None of these

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A

In computer network nodes are
A. the computer that originates the data
B. the computer that routes the data
C. the computer that terminates the data
D. all of the mentioned
E. Both A and C
F. None of these

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D

The communication channel is shared by all the machines on the network in
A. unicast network
B. multicast network
C. None of these
D. broadcast network

E. None of these

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D

Bluetooth is an example of
A. local area network
B. virtual private network
C. personal area network
D. Both A and B
E. none of these

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C

Which device is used to forward packets b/w networks by processing the information included in the packet?
A. Router
B. Bridge
C. Firewall
D. Hub
E. All of these
F. None of these

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A

The number of protocols used by a system, one protocol per layer, is known as
A. Protocol architecture
B. Protocol suite
C. Protocol stack
D. None of these
E. All of these
F. Both A and C

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C

Network congestion occurs when______
A. When a system terminates
B. When connection between two nodes terminates
C. None of the mentioned
D. In case of traffic overloading
E. None of these
F. All of these

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D

Which network is used to extend a private network across public networks?
A. Local area network
B. Enterprise private network
C. Storage area network
D. Virtual private network
E. None of these
F. All of these

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D

Which one is not used as a constituent of the residential telephone line?
A. A low-speed downstream channel
B. A high-speed downstream channel
C. A medium-speed downstream channel
D. None of these
E. All of these

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A

DSL telco gives which services from the following
A. Wired phone access
B. ISP
C. None of the mentioned
D. All of the mentioned

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D

_______ is the function of DSLAM is
A. Convert digital signals into analog signals
B. Convert analog signals into digital signals
C. Amplify digital signals
D. None of these
E. All of these

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B

Which term is not associated with DSL
A. DSLAM
B. CMTS
C. CO
D. Splitter
E. All of these
F. None of these

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B

HFC contains_______.
A. Fiber cable
B. Coaxial cable
C. Both Fiber cable and Coaxial cable
D. None of these

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B

Which of the following statement is not applicable for cable internet access?
A. It is a shared broadcast medium
B. It includes HFCs
C. Analog signal is converted to digital signal in DSLAM
D. Cable modem connects home PC to Ethernet port

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C

Among the optical-distribution architectures that are essentially switched Ethernet is
A. PON
B. NON
C. AON
D. None of these
E. All of these

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C

StarBand provides
A. Satellite access
B. FTTH internet access
C. Cable access
D. Telephone access
E. None of these

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A

A. DSL
B. FTTP
C. Cable
D. All of these
E. None of these

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D

ONT is connected to splitter using
A. Optical cable
B. High-speed fiber cable
C. HFC
D. None of these
E. All of these

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A

Ans=A
There are ______ number of layers in the internet protocol stack.
A.6
B. 7
C. 5
D. None of these
E. All of these

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C

Ans=C
How many layers are there in the ISO OSI reference model?
A. 5
B. 7
C. 6
D. 15
E. 9
F. None of these

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B

This layer is associate degree addition to OSI model in comparison with the Transmission control protocol Information science model
A. Application layer
B. Presentation layer
C. Session layer
D. Both Session and Presentation layer
E. None of these

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D

Application layer is implemented in
A. NIC
B. Ethernet
C. End system
D. None of these
E. All of these

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C

5. The transport layer is implemented in
A. NIC
B. End system
C. Ethernet
D. None of these
E. All of these

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B

The functionalities of the presentation layer include
A. Data compression
B. Data encryption
C. Data description
D. All of the mentioned
E. None of these

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D

Delimiting and synchronization of data exchange is provided by
A. Application layer
B. Transport layer
C. Link-layer
D. Session layer
E. All of these
F. None of these

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D

In the OSI model, when data is sent from device A to the  device B, the 5th layer to receive data at B is
A. Application layer
B. Session layer
C. Link-layer
D. Transport layer
E. All of these
F. None of these

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B

In TCP IP Model, once information is distributed from device A to devise B, the fifth layer to receive information at B is
A. Link layer
B. Transport layer
C. Application layer
D. Session layer
E. None of these
F. All of these

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C

In the OSI model, as an information packet moves from the lower to the higher layers, headers can
A. Added
B. Rearranged
C. Removed
D. None of these
E. All of these

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C

OSI stands for
A. Optical service implementation
B. Operating system interface
C. Open system interconnection
D. None of the mentioned
E. All of These

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C

Who many layers are there in the OSI model
A. 7
B. 5
C. 6
D. 4
E. 9
F.12

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A

OSI model has a layer which is not in the TCP/IP model.
A. Application layer
B. Transport layer
C. Session layer
D. None of these
E. All of these

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C

________ layer links the user support and network layers .
A. Transport layer
B. Datalink layer
C. Session layer
D. Network layer
E. All of these
F. None of these

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A

TCP/IP uses _____ address in an internet employing
A. Physical address and logical address
B. Port address
C. Specific address
D. All of these
E. None of these

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D

TCP/IP model has developed _____ the OSI model.
A. Simultaneous to
B. After
C. Prior to
D. None of these
E. All of these

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C

_____ layer is liable for a method to method delivery.
A. Network layer
B. Session layer
C. Transport layer
D. Datalink layer
E. All of these
F. None of these

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C

The address which is used to identify a process on a host
A. physical address
B. port address
C. logical address
D. specific address
E. None of these
F. All of these

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B

_____layer provides services to the user.
A. Presentation layer
B. Session layer
C. Application layer
D. None of these
E. All of these

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C

ANS=C
The rate of transmission is decided by_____ layer.
A. Network layer
B. Transport layer
C. Datalink layer
D. Physical layer
E. None of these
F. All of these

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D

_____ transmission media has the highest speed in the network.
A. Coaxial cable
B. Twisted pair cable
C. Optical fiber
D. Electrical cable
E. All of these
F. None of these

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C

Ans=C
Which type of modulation is used to send data over guided and unguided media as an analog signal?
A. Frequency modulation
B. Amplitude modulation
C. Digital modulation
D. Phase modulation
E. All of these
F. None of these

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C

The portion of the physical layer that interfaces with the media access management sub-layer are known as.
A. Physical signaling sub-layer
B. Physical data sub-layer
C. Physical address sub-layer
D. All of these
E. None of these

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A

Ans=A
Physical layer provides
A. Mechanical specifications of electrical connectors and cables
B. Electrical specification of transmission line signal level

C. Specification for IR over optical fiber
D. All of these
E. Both A and B
F. None of these

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D

In asynchronous serial communication, the physical layer provides
The physical layer provides____________ in Asynchronous serial communication.
A. Start and stop signaling
B. Flow control
C. Both A and B
D. None of the mentioned

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C

Ans =C
The physical layer is responsible for
A. Line coding
B. Channel coding
C. Modulation
D. Both A and B
E. All of these
F. None of these

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E

The physical layer interprets logical communication requests from the particular into hardware-specific operations.
A. Application layer
B. Network layer
C. Transport layer
D. Datalink layer
E. Both A and B
F. None of these

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D

A single channel is shared by multiple signals by
A. Multiplexing
B. Digital modulation
C. Analog modulation
D. Both A and B
E. All of these
F. None of these

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A

Which type of wave is used for wireless transmission?
A. Radio waves
B. Microwaves
C. Infrared
D. Both A and B
E. All of these
F. None of these

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E

The data link layer is responsible for taking the packets from________ and encapsulating them into frames for transmission.
A. Physical layer
B. Network layer
C. Transport layer
D. Application layer
E. All of these
F. None of these

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B

Datalink layer cannot perform _____ task.
A. framing
B. channel coding
C. flow control
D. error control
E. All of these
F. None of these

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B

Which sub-layer of the information link layer performs circuit functions that depend on the kind of medium?
A. Media access control sublayer
B. Logical link control sublayer
C. Network interface control sublayer
D. Both A and B
E. All of these
F. None of these

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A

The header of a frame generally contains
A. Synchronization bytes
B. Addresses
C. Frame identifier
D. Both A and C
E. All of these
F. None of these

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E

When two or more bits in information has been changed during the transmission, the error is known as?
A. Random error
B. Inverted error
C. Burst error
D. Both A and B
E. All of these
F. None of these

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C

CRC stands for
A. Code redundancy check
B. Code repeat check
C. Cyclic redundancy check
D. Cyclic repeat check
E. All of these
F. None of these

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C

Which one among the subsequent may be a data link protocol?
A. Ethernet
B. Point to point protocol
C. HDLC
D. Both A and B
E. All of these
F. None of these

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E

The network layer concerns with
A. Bits
B. Frames
C. Packets
D. Both A and B
E. All of these
F. None of these

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C

Network layer does not contain________ function?
A. Routing
B. Inter-networking
C. Congestion control
D. Both A and C
E. All of these
F. None of these

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F

Ans=F
The four-byte IP address consists of
A. Network address
B. Host address
C. Both A and B
D. All of these
F. None of these

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C

Each packets contains________ in virtual circuit network.
A. Full source and destination address
B. Only destination address
C. Only source address
D. A short VC number
E. Both A and B
F. None of these

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D

In network layer design which of the routing algorithm is used?
A. Shortest path algorithm
B. Distance vector routing
C. Link state routing
D. Both A and C
E. All of these
F. None of these

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E

Multi-destination routing
A. Data is not sent by packets
B. Contains the list of all destinations
C. Is same as broadcast routing
D. Both B and C
E. All of these
D. None of these

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A

O //A subset of a network that includes all the routers but contains no loops is called
a) spanning-tree
b) spider structure
c) spider tree
d) none of the mentioned
C// A subset of a network that includes all the routers but contains no loops is called
A. Spider tree
B. Spider structure
C. Spanning tree
D. Both A and B
E. All of these
F. None of these

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C

For congestion control which algorithm is not used?
A. Traffic aware routing
B. Admission control
C. Load shedding
D. Both A and C
E. All of these
F. None of these

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F

In internet the network layer protocol is_________
A. Ethernet
B. Hypertext transfer protocol
C. Internet protocol

...

D. Both A and B
E. All of these
F. None of these

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C

ICMP is primarily used for
A. Error and diagnostic functions
B. Addressing
C. Forwarding
D. Both B and C
E. All of these
F. None of these

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A

Ans=A
An endpoint of an inter-process communication flow across a computer network is called
A. Port
B. Pipe
C. Socket
D. Both A and B
E. All of these
F. None of these

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C

windows socket-style API is know as________
A. sock
B. wins
C. Winsock
D. Both A and B
E. All of these
D. None of these

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C

Which of the following is the TCP name of a transport service access point?
A. Node
B. Pipe
C. Port
D. Both A and C
E. All of these
F. None of these

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C

Transport layer protocols deals with_________
A. Application to application communication
B. Node to node communication
C. The process to process communication
D. Both A and C
E. All of these
D. None of these

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C

Physical or logical arrangement of the network is Called
A. Networking
B. Routing
C. Topology
D. Both A and C
E. All of these
F. None of these

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C

In which topology there is a central controller or hub?
A. Bus
B. Mesh
C. Ring
D. Star
E. All of these
F. None of these

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D

which of the following topology requires multipoint connection
A. Star
B. Bus
C. Ring
D. Mesh
E. All of these
F. None of these

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B

which of the following Data communication system is responsible for spanning states, countries, or the whole world is ________
A. WAN
B. LAN
C. MAN
D. Both A and B
E. All of these
D. None of these

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A