In this page we have given CBSE Board Class 12 Computer Science with Python Book Chapter Networking Concepts – II MCQ Question and Answer. All the questions below are important for our CBSE Champs.
- Board – CBSE.
- Class – 12
- Subject- Computer Science with Python.
- Topic- MCQ.
- Number of MCQ- 77.
1) A ……………………………… medium (plural media) is one which from one computer to another.
a) Transmission b) Transfer c) Communication d) None of these
Ans – a) Transmission
2) The ………………….. Transmission media which includes twisted pair cable, Ethernet cable, coaxial cable and optical fibre.
a) Wired b) Wireless c) Effortless d) Digital
Ans – a) Wired
3) The ………………………. transmission media which includes microwave, radio wave, satellite, infrared, Bluetooth, WIFI
a) Wired b) Wireless c) Effortless d) Digital
Ans – b) Wireless
4) The wired or guided transmission media physically connects the ………………. computers.
a) Three b) four c) two d) five
Ans – c) two
5) The type of wire which consists of two insulated wires arranged in a regular spiral pattern (double helix) and is generally used for telephone communication in offices and in Ethernet networks.
a) Coaxial Cables b) Twisted Pair cables c) Optical Fibre d) All of these
Ans – b) Twisted Pair cables
6) For telephonic communications a …………………………….. cable is used.
a) Data Grade Medium
b) Voice Grade Medium
c) Video Grade Medium
d) Database Grade Medium
Ans – b) Voice Grade Medium
7) The abbreviation of VGM is
a) Voice Grade Medium
b) Video Graphic Mode
c) Visual Graphic Method
d) None of these
Ans – a) Voice Grade Medium
8) DGM stands for
a) Database Grade Medium
b) Data Grade Medium
c) Direct Grade Medium
d) Datasheet Graded Mark
Ans – b) Data Grade Medium
9) The …………………….. of wires reduces crosstalk which is the bleeding of a signal from one wire to another.
a) twisting b) folding c) straightening d) None of these
Ans – a) twisting
10) STP stands for
a) Supported and Twisted Pair
b) Shielded Twisted Pair
c) Supplied Twisted Pair
d) Socketed Twisted Pair
Ans – b) Shielded Twisted Pair
11) The ………………. cable comes with shielding of the individual pairs of wires, which further protects it from external interference and crosstalk.
a) FTP
b) UTP
c) DTP
d) STP
Ans – d) STP
12) The wire that consists of solid wire cores surrounded by one or more foil or wire shields, each separated by some kind of plastic insulator.
a) Coaxial Cables b) Twisted Pair cables c) Optical Fibre d) All of these
Ans – a) Coaxial Cables
13) The …………………….. type of coaxial cable is thinner and has a maximum segment of 185 metres.
a) thickened b) thinnest c) thinnet d) Thicknet.
Ans – c) thinnet
14) The cable that offers high bandwidth of upto 400 mbps.
a) Coaxial Cables b) Twisted Pair cables c) Optical Fibre d) All of these
Ans – a) Coaxial Cables
15) The ………………….. type of coaxial cable which is thicker and its cable segment can be upto 500 metres long.
a) thickest b) thinnet c) thicknet d) None of these
Ans – a) thickest
16) The type of cable which consists of thin strands of glass or glass like material which are constructed that they carry light from a source at one end of the fibre to a detector at the other end.
a) Coaxial Cable b) Twisted pair c) Optical Fibres d) Moulded cable
Ans – c) Optical Fibres
17) LED stands for
a) Light Emitting Diode b) Light Exiting Diode
c) Light Entering Diode d) Light Enabling Diode
Ans – a) Light Emitting Diode
18) The data to be transmitted is modulated onto a light beam using frequency modulation techniques, at the receiver’s end the signals are ……………………..
a) deleted b) deactivated c) demodulated d) disabled
Ans – c) demodulated
19) Optical fibres offers a very high bandwidth and this makes it capable of ……………………….. channel communication.
a) single b) triple c) multi d) unique
Ans – c) multi
20) It is a glass or plastic through which the light travels.
a) core b) cladding c) protective (buffer) d) shell
Ans – a) core
21) The coating which protects the fibre cable from the hostile environments.
a) core b) cladding c) protective (buffer) d) shell
Ans – c) protective (buffer)
22) It is the covering of the core that reflects the light back to the cover.
a) core b) cladding c) protective (buffer) d) shell
Ans – b) cladding
23) It is the type of fibre optic cable which supports a segment length of up to 2kms and bandwidth of up to 100Mbps
a) Single node b) Multi node c) Triple node d) four node
Ans – a) Single node
24) It has a segment length of 100kms and bandwidth of 2 Gbps.
a) Single node b) Multi node c) Triple node d) four node
Ans – b) Multi node
25) The frequency of light that is not visible to human eye and has a range of wavelength just like visible light has wavelengths from red light to violet light.
a) Satellite b) Bluetooth c) Radio waves d) Infrared
Ans – d) Infrared
26) ………………………….. communication is playing an important role in wireless data communication due to the popularity of laptop computers, personal digital assistants (PDAs), digital cameras, mobile phones, pagers and other devices but being a line – of- sight transmission, it is sensitive to fog and other atmospheric conditions.
a) Satellite b) Bluetooth c) Radio waves d) Infrared
Ans – d) Infrared
27) It is widely used by delivery services, policemen, security, personals etc.
a) Satellite b) Bluetooth c) Radio waves d) Infrared
Ans – c) Radio waves
28) It is the popular transmission medium which permits data transmission rates of about 16 gigabits per second.
a) Infrared b) Radio waves c) Microwaves d) Satellite
Ans – c) Microwaves
29) Several repeater stations are required for long distance transmission thereby increasing the cost considerably.
a) Infrared b) Radiowaves c) Microwaves d) Satellite
Ans – c) Microwaves
30) It is placed precisely at 36,000 km above the equator where its orbit speed exactly matches at the earth’s rotation speed.
a) Satellite b) Bluetooth c) Radiowaves d) Microwaves
Ans – a) Satellite
31) Capacity or number of channels used in …………………. communications depends on the frequency used.
a) Bluetooth b) Infrared c) Microwaves d) Satellite
Ans – d) Satellite
32) Typical transfer rates are …………………………….
a) 1 to 10 b) 15 to 20 c) 20 to 30 d) 25 to 30
Ans – a) 1 to 10
33) It is the pattern of interconnection of nodes in a local area network (LAN).
a) Methodology b) Topology c) Sociology d) Technology
Ans – b) Topology
34) It is the link that each transmitter transmits to exactly one receiver and each receiver receives exactly from one transmitter.
a) Face to Face b) Point to Point c) End to End d) None of these
Ans – b) Point to Point
35) The ………………………. might occur on a single medium i.e is single wire or over separate wires.
a) communication b) transmission c) Intermission d) All of these
Ans – b) transmission
36) The main characteristic of ……………………………. link is that each transmitter transmits to exactly one receiver and each receiver receives exactly form one transmitter.
a) Face to Face b) Point to Point c) End to End d) None of these
Ans – b) Point to Point
37) It is also known as Linear Topology.
a) Bus Topology b) Star Topology c) Ring Topology d) Mesh Topology
Ans – a) Bus Topology
38) In………………….. type of topology, each node attaches directly to a common cable which acts as the backbone and therefore functions as a shared communication medium onto which various nodes are attached.
a) Ring b) Star c) Bus d) Hybrid
Ans – c) Bus
39) Data is transmitted in small blocks called as ………………..
a) packets b) covers c) pieces d) All of these
Ans –
40) In star network a central connection point called a ………………. node to which all other nodes are connected by a single path.
a) node b) host c) client d) modem
Ans – a) node
41) Each node has a dedicated set of wires connecting it to a ………………………. network hub.
a) outer b) central c) inner d) None of these
Ans – b) central
42) In ………………….. type of topology is used in most existing information networks involving data communication or voice communications.
a) Mesh b) Bus c) Star d) ring
Ans – c) Star
43) ……………………. terminals are connected to the host system.
a) 3275 b) 3250 c) 3217 d) 3270
Ans – d) 3270
44) If the ………………….. fails, the entire network also fails.
a) node b) hub c) host d) client
Ans – b) hub
45) This network looks like an inverted tree with central root branching and sub-branching down to the nodes.
a) tree b) star c) bus d) All of these
Ans – a) tree
46) Data ………………………. takes place in the same way as in bus topology.
a) communication b) sharing c) transmission d) deletion
Ans – c) transmission
47) When the signal reaches the end of the transmission medium, it is aborted by the ……………………….
a) terminators b) spectators c) detectors d) transmitters
Ans – a) terminators
48) This topology is the best suited for the applications which have a hierarchical flow of data and control.
a) tree
b) star
c) bus
d) All of these
Ans – a) tree
49) Modem stands for
a) Modulation and Demolition
b) Modulation and Demodulation
c) Modulator and Demodulator
d) Moderator and Demoderator
Ans – b) Modulation and Demodulation
50) The device which enables a computer to transmit data over, telephone or cable lines.
a) satellite b) router c) modem d) Ethernet card
Ans – c) modem
51) The abbreviation of RJ – 45 is
a) Registered John 45
b) Registered Jack- 45
c) Recalled Jack – 45
d) Registry Jack – 45
Ans – b) Registered Jack- 45
52) It is the eight wired connector that is used to connect computers on a local area network (LAN) especially Ethernet.
a) Ethernet card b) modem c) RJ-45 d) Switch
Ans – c) RJ-45
53) The connector that is used for connecting telephone equipment but they are somewhat wider.
a) RJ-45 b) RJ-25 c) RJ-11 c) RJ-50
Ans – c) RJ-11
54) NIC stands for
a) National Informatics Center
b) Network Interface Card
c) Network Informed Card
d) New Information Card
Ans – a) National Informatics Center
55) It is a convenient alternative to PCI cards for desktop computers and also commonly used with video game console and other consumer devices lacking expansion slots.
a) Switch b) Repeater c) router d) Ethernet Card
Ans – d) Ethernet Card
56) The adapters which supports the Ethernet standard for high-speed network connections via cables.
a) Switch b) Repeater c) router d) Ethernet Card
Ans – d) Ethernet Card
57) Modern Ethernet adapters can support the speed of upto …………………. Mbps
a) 150 b) 10 c) 50 d) 100
Ans – d) 100
58) It is the device which is used to break a network into different subnetworks called subnets or LAN segments.
a) Ethernet card b) modem c) RJ-45 d) Switch
Ans – d) Switch
59) A network …………….. is a small hardware device that joins multiple computers together within one local area network (LAN).
a) Switch b) Repeater c) router d) Ethernet Card
Ans – a) Switch
60) Switches that provides a separate connection for each node in a company’s internal network called …………… switches.
a) LAN b) WAN c) MAN d) WLAN
Ans – a) LAN
61) It is an electronic device that receives a signal, amplifies it and then retransmits it on the network so that the signal can cover longer distances.
a) Switch b) Repeater c) router d) Ethernet Card
Ans – b) Repeater
62) The type of repeaters which regenerates incoming electrical, wireless or optical signals.
a) Network b) Repetition c) revised d) None of these
Ans – a) Network
63) They attempt to preserve digital integrity by periodically regenerating the signal and extend the distance over which data can safely travel.
a) Switch b) Repeater c) router d) Ethernet Card
Ans – b) Repeater
64) These are the actual network devices which serve as repeaters.
a) Actual hubs b) Anti hubs c) Active hubs d) Activity hubs
Ans – c) Active hubs
65) The another name of active hub repeaters are
a) double port b) single port c) triple port d) multiport
Ans – d) multiport
66) It is the network device that works like a bridge to establish connection between two networks but can handle networks with different protocols.
a) Bridges b) Gateway c) switches d) routers
Ans – d) routers
67) It can be wired or wireless and provides connectivity inside enterprises, between enterprises and within an Internet Service Provider (ISP).
a) Bridges b) Gateway c) switches d) routers
Ans – d) routers
68) A network device that establishes an intelligent connection between a local network and external network with completely different structures i.e it connects two dissimilar networks.
a) Routers b) switches c) Gateway d) Bridges
Ans – c) Gateway
69) The system that is designed to prevent unauthorised access to or from a private network.
a) Firehouse b) firewall c) fire gate d) None of these
Ans – b) firewall
70) ………………………. is often associated with both router, which knows where to direct a given packet of data that arrives at the gateway, and a switch, which furnishes the actual path in and out of the gateway for a given packet.
a) Routers b) switches c) Gateway d) Bridges
Ans – c) Gateway
71) The ……………………. gateway is the device that passes from the local subnet to devices on other subnets and often connects a local network to the internet, although internal gateways for local networks also exist.
a) default b) different c) changed d) integrated
Ans – a) default
72) …………………….. are small and portable cards which allows your desktop or laptop computer to connect to the internet through a wireless network.
a) Simcard b) Memory card c) Wi-Fi card d) postcard
Ans – c) Wi-Fi card
73) Wi-Fi transmissions is through the use of …………………………
a) radiowaves b) satellite c) Bluetooth d) microwave
Ans – a) radiowaves
74) If a Wi-Fi card is not installed in your computer, you may purchase a ……………………… attachment and have it externally connected to your device.
a) dish antenna b) USB antenna c) radio antenna d) All of these
Ans – b) USB antenna
75) Wi-Fi stands for
a) Wireless Fidelity b) Wired Fidelity c) Wiring Fidelity d) All of these
Ans – a) Wireless Fidelity
76) USB stands for
a) Uniform Serial Bus
b) Universal Serial Bus
c) Universally Separated Bus
d) Useful Serial Bus
Ans – b) Universal Serial Bus
77) ISP stands for
a) International Service Provider
b) Internal Service Provider
c) Internet Service Provider
d) Indian Service Provider
Ans – b) Internal Service Provider