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Computer Networks MCQs

998+ questions with answers

751

Internet access by transmitting digital data over the wires of a local telephone network is provided by _______

a leased line
b digital subscriber line
c digital signal line
d digital leased line
Medium
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752

ISP exchanges internet traffic between their networks by __________

a internet exchange point
b subscriber end point
c isp end point
d internet end point
Medium
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753

Which of the following protocols is used in the internet?

a HTTP
b DHCP
c DNS
d DNS, HTTP and DHCP
Medium
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754

The size of an IP address in IPv6 is _________

a 32 bits
b 64 bits
c 128 bits
d 265 bits
Medium
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755

Which one of the following is not an application layer protocol used in internet?

a remote procedure call
b internet relay chat
c resource reservation protocol
d local procedure call
Medium
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756

Which protocol assigns IP address to the client connected in the internet?

a DHCP
b IP
c RPC
d RSVP
Medium
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757

Which one of the following is not used in media access control?

a ethernet
b digital subscriber line
c fiber distributed data interface
d packet switching
Medium
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758

An interconnected collection of piconet is called ___________

a scatternet
b micronet
c mininet
d multinet
Medium
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759

In a piconet, there can be up to ________ parked nodes in the network.

a 63
b 127
c 255
d 511
Medium
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760

Bluetooth is the wireless technology for __________

a local area network
b personal area network
c metropolitan area network
d wide area network
Medium
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761

Bluetooth uses __________

a frequency hopping spread spectrum
b orthogonal frequency division multiplexing
c time division multiplexing
d channel division multiplexing
Medium
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762

Unauthorised access of information from a wireless device through a bluetooth connection is called _________

a bluemaking
b bluesnarfing
c bluestring
d bluescoping
Medium
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763

What is A2DP (advanced audio distribution profile)?

a a bluetooth profile for streaming audio
b a bluetooth profile for streaming video
c a bluetooth profile for security
d a bluetooth profile for file management
Medium
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764

Bluetooth transceiver devices operate in ______ band.

a 2.4 GHz ISM
b 2.5 GHz ISM
c 2.6 GHz ISM
d 2.7 GHz ISM
Medium
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765

Bluetooth supports _______

a point-to-point connections
b point-to-multipoint connection
c both point-to-point connections and point-to-multipoint connection
d multipoint to point connection
Medium
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766

A scatternet can have maximum __________

a 10 piconets
b 20 piconets
c 30 piconets
d 40 piconets
Medium
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767

WiMAX stands for ___________

a wireless maximum communication
b worldwide interoperability for microwave access
c worldwide international standard for microwave access
d wireless internet maximum communication
Medium
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768

WiMAX provides ________

a simplex communication
b half duplex communication
c full duplex communication
d no communication
Medium
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769

WiMAX uses the _________

a orthogonal frequency division multiplexing
b time division multiplexing
c space division multiplexing
d channel division multiplexing
Medium
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770

Which of the following modulation schemes is supported by WiMAX?

a binary phase shift keying modulation
b quadrature phase shift keying modulation
c quadrature amplitude modulation
d all of the mentioned
Medium
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771

WiMAX MAC layer provides an interface between ___________

a higher transport layers and physical layer
b application layer and network layer
c data link layer and network layer
d session layer and application layer
Medium
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772

WiMAX provides _______

a VoIP services
b IPTV services
c Both VoIP and IPTV services
d no IPTV services
Medium
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773

Devices that provide the connectivity to a WiMAX network are known as _________

a subscriber stations
b base stations
c gateway
d switch stations
Medium
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774

WiMAX is mostly used for __________

a local area network
b metropolitan area network
c personal area network
d wide area network
Medium
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775

Which of the following frequencies is not used in WiMAX for communication?

a 2.3 GHz
b 2.4 GHz
c 2.5 GHz
d 3.5 GHz
Medium
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776

SONET stands for ___________

a synchronous optical network
b synchronous operational network
c stream optical network
d shell operational network
Medium
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777

In SONET, STS-1 level of electrical signalling has the data rate of _________

a 51.84 Mbps
b 155.52 Mbps
c 2488.320 Mbps
d 622.080 Mbps
Medium
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778

The path layer of SONET is responsible for the movement of a signal _________

a from its optical source to its optical destination
b across a physical line
c across a physical section
d back to its optical source
Medium
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779

The photonic layer of the SONET is similar to the __________ of OSI model.

a network layer
b data link layer
c physical layer
d transport layer
Medium
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780

In SONET, each synchronous transfer signal STS-n is composed of __________

a 2000 frames
b 4000 frames
c 8000 frames
d 16000 frames
Medium
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781

Which one of the following is not true about SONET?

a frames of lower rate can be synchronously time-division multiplexed into a higher-rate frame
b multiplexing is synchronous TDM
c all clocks in the network are locked to a master clock
d STS-1 provides the data rate of 622.080Mbps
Medium
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782

Automatic protection switching in linear network is defined at the _______

a line layer
b section layer
c photonic layer
d path layer
Medium
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783

A unidirectional path switching ring is a network with __________

a one ring
b two rings
c three rings
d four rings
Medium
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784

What is SDH?

a sdh is similar standard to SONET developed by ITU-T
b synchronous digital hierarchy
c sdh stands for synchronous digital hierarchy and is a similar standard to SONET developed by ITU-T
d none of the mentioned
Medium
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785

Real-time transport protocol (RTP) is mostly used in _________

a streaming media
b video teleconference
c television services
d all of the mentioned
Medium
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786

RTP is used to ________

a carry the media stream
b monitor transmission statistics of streams
c monitor quality of service of streams
d secure the stream
Medium
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787

RTP provides the facility of jitter ____________

a media stream
b expansion
c media modification
d security
Medium
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788

Which protocol provides the synchronization between media streams?

a RTP
b RTCP
c RPC
d RTCT
Medium
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789

An RTP session is established for ____________

a each media stream
b all media streams
c some predefined number of media streams
d no media stream
Medium
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790

RTP can use __________

a unprevileleged UDP ports
b stream control transmission protocol
c datagram congestion control protocol
d all of the mentioned
Medium
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791

An RTP header has a minimum size of _________

a 12 bytes
b 16 bytes
c 24 bytes
d 32 bytes
Medium
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792

Which one of the following is not correct?

a RTCP provides canonical end-point identifiers to all session participants
b RTCP reports are expected to be sent by all participants
c RTCP itself does not provide any flow encryption or authentication methods
d RTCP handles the actual data delivery
Medium
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793

Which protocol defines a profile of RTP that provides cryptographic services for the transfer of payload data?

a SRTP
b RTCP
c RCP
d RTCT
Medium
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794

An RPC (remote procedure call) is initiated by the _________

a server
b client
c client after the sever
d a third party
Medium
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795

In RPC, while a server is processing the call, the client is blocked ________

a unless the client sends an asynchronous request to the server
b unless the call processing is complete
c for the complete duration of the connection
d unless the server is disconnected
Medium
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796

A remote procedure call is _______

a inter-process communication
b a single process
c a single thread
d a single stream
Medium
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797

RPC allows a computer program to cause a subroutine to execute in _________

a its own address space
b another address space
c both its own address space and another address space
d applications address space
Medium
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798

RPC works between two processes. These processes must be ____________

a on the same computer
b on different computers connected with a network
c on the same computer and also on different computers connected with a network
d on none of the computers
Medium
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799

A remote procedure is uniquely identified by _________

a program number
b version number
c procedure number
d all of the mentioned
Medium
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800

RPC is used to _________

a establish a server on remote machine that can respond to queries
b retrieve information by calling a query
c establish a server on remote machine that can respond to queries and retrieve information by calling a query
d to secure the client
Medium
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