WorksheetsDATA COMMUNICATION & NETWORKING MCQ
Total questions: 30
Worksheet time: 15mins
Data communication refers to
Transmission of data between devices
Storage of data
Processing of data
Deletion of data
Which of the following is NOT a component of data communication?
Sender
Receiver
Protocol
Compiler
Text, image, audio, and video are examples of
Signals
Data
Medium
Protocols
Data flow that occurs in both directions but not simultaneously is called
Simplex
Half-duplex
Full-duplex
Parallel
Which data flow mode allows simultaneous transmission in both directions?
Simplex
Half-duplex
Full-duplex
Serial
Throughput and delay are performance criteria related to
Network reliability
Network security
Network performance
Network topology
A network that covers a large geographical area is
LAN
MAN
WAN
PAN
Which topology uses a central device to connect all nodes?
Ring
Mesh
Bus
Star
Point-to-point and multipoint connections refer to
Topologies
Network criteria
Network connections
Network models
Which topology provides the highest reliability?
Bus
Star
Ring
Mesh
ISO-OSI model consists of how many layers?
5
6
7
8
TCP/IP model has how many layers?
3
4
5
7
Which organization developed the OSI model?
IEEE
ISO
ITU
ANSI
LAN, MAN, and WAN are categories based on
Topology
Speed
Size
Protocol
Interconnection of networks is also known as
Intranet
Internet
Extranet
Ethernet
The physical layer is responsible for
Error detection
Routing
Bit transmission
Encryption
Multiplexing is used to
Increase bandwidth
Combine multiple signals
Reduce noise
Detect errors
Frequency Division Multiplexing (FDM) divides
Time slots
Wavelengths
Frequency bands
Signals
Wavelength Division Multiplexing (WDM) is mainly used in
Copper cables
Coaxial cable
Optical fiber
Twisted pair
Synchronous Time Division Multiplexing allocates
Slots on demand
Fixed time slots
Variable bandwidth
Random slots
Which of the following is a guided transmission medium?
Radio waves
Microwaves
Optical fiber
Infrared
Twisted pair cable is commonly used in
Satellite communication
Telephone networks
Radio broadcasting
Radar
RJ-45 connector is used with
Optical fiber
Coaxial cable
Twisted pair cable
Waveguide
Which cable offers highest bandwidth and least attenuation?
Twisted pair
Coaxial
Optical fiber
UTP
Unguided media includes
Optical fiber
Twisted pair
Coaxial cable
Radio waves
Infrared communication is suitable for
Long distance communication
Satellite links
Line-of-sight short range
Underwater communication
Circuit switching is best suited for
Email transmission
File transfer
Telephone calls
Web browsing
Packet switching is mainly used in
Telephone networks
Cable TV
Internet
Radio
In packet switching, data is transmitted in the form of
Frames
Signals
Packets
Messages
Datagram approach is associated with
Circuit-switched networks
Virtual circuit networks
Packet-switched networks
Telephone networks
