Computer Questions for NICL AO Mains for 2019

1.

HTTP is a/an ________ protocol.

   A.) application layer
   B.) transport layer
   C.) network layer
   D.) Physical Layer

Answer: Option 'A'

The HyperText Transfer Protocol, or HTTP, is the most widely used Application layer protocol in the world today. It forms the basis of what most people understand the Internet to be—the World Wide Web. Its purpose is to provide a lightweight protocol for the retrieval of HyperText Markup Language (HTML) and other documents from Web sites throughout the Internet. Each time you open a Web browser to surf the Internet, you are using HTTP over TCP/IP.

DigitalOcean Referral Badge

2.

Which of the following HTML elements is the starting element in all HTML document?

   A.) Root
   B.) Metadata
   C.) Section
   D.) Heading

Answer: Option 'A'

The Root element is the starting element in an HTML document, and it is present in all HTML documents.

DigitalOcean Referral Badge

3.

Routers operate at which layer of the OSI model?

   A.) physical
   B.) transport
   C.) network
   D.) MAC sublayer of the data link layer

Answer: Option 'C'

Router functions in the network layer.

DigitalOcean Referral Badge

4.

Who invented the QWERTY keyboard?

   A.) Carl Sholes
   B.) Karl Sholes
   C.) Christopher Latham Sholes
   D.) Khristopher Sholes

Answer: Option 'C'

Christopher Latham Sholes invented the keyboard in 1868.

DigitalOcean Referral Badge

5.

Bits are packaged into frames at which layer of the OSI model?

   A.) Transport
   B.) Data link
   C.) Physical
   D.) Presentation

Answer: Option 'B'

Bits are PDU of Layer-1 and Frames are PDU of Layer-2 Data Link Layer

DigitalOcean Referral Badge

6.

What is Windows Vista?

   A.) Processor
   B.) Operating System
   C.) Input device
   D.) Memory

Answer: Option 'B'

Windows Vista is an operating system, designed and marketed by Microsoft Inc.

DigitalOcean Referral Badge

7.

The layers of the OSI model, from the top down, are:

   A.) application, presentation, session, transport, network, data link, physical
   B.) session, presentation, data transport, MAC, network, physical
   C.) physical, data link, network, transport, session, presentation, application
   D.) presentation, application, session, network, transport, data link, physical

Answer: Option 'A'

Following is the correct order of layers in OSI Model:
Layer 7- Application Layer
Layer 6 –Presentation Layer
Layer 5 – Session Layer
Layer 4 – Transport Layer
Layer 3 – Network Layer
Layer 2 – Data Link Layer
Layer 1 – Physical Layer

DigitalOcean Referral Badge

8.

Which of the following is not a DBMS software?

   A.) dBASE
   B.) FoxPro
   C.) Oracle
   D.) Database2000

Answer: Option 'D'

Database2000 is not a DBMS Software.

DigitalOcean Referral Badge

9.

Which of the following operate at the presentation layer?
1) MIDI 
2) FTP 
3) SMTP 
4) TFTP  
5) JPEG

   A.) 1 and 2
   B.) 1, 3, and 5
   C.) 3 and 5 
   D.) 1 and 5

Answer: Option 'D'

MIDI and JPEG are presentation layer specific protocols.

DigitalOcean Referral Badge

10.

DBMS helps to achieve:

   A.) data independence
   B.) more redundancy
   C.) centralized manner to control of data
   D.) Both (a) and (c)

Answer: Option 'D'

DBMS helps to achieve data independence and centralized manner to control of data. It controls data redundancy.

DigitalOcean Referral Badge

11.

Which of the following are considered to be the upper layers in the OSI Model?

   A.) presentation and session
   B.) application and presentation
   C.) application, presentation, and session
   D.) application, presentation, data-link, and transport

Answer: Option 'C'

The last three layers of the OSI model – Application, Presentation and Session layers are considered to be the upper layers.

DigitalOcean Referral Badge

12.

Which physical layer devices can be used to enlarge the area covered by a single LAN segment?
1. Switch
2. NIC
3. Hub
4. Repeater
5. RJ45 transceiver

   A.) 1 only
   B.) 1 and 3
   C.) 3 and 4
   D.) 5 only

Answer: Option 'C'

A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network.  A hub is basically a multiport repeater. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations.

DigitalOcean Referral Badge

13.

Encryption takes place at which layer?

   A.) application
   B.) presentation
   C.) session
   D.) transport

Answer: Option 'B'

The presentation layer is responsible for the delivery and formatting of information to the application layer for further processing or display. Encryption is also done at this level.

DigitalOcean Referral Badge

14.

Which of the following describe router functions?

   A.) Packet switching
   B.) Packet filtering
   C.) Internetwork communication
   D.) All of the above

Answer: Option 'D'

All of the given options are router functions.

DigitalOcean Referral Badge

15.

Which combinational package of layers in OSI model is equivalent to an application layer of TCP/ IP model?

   A.) Transport, Session & Application Layers
   B.) Session, Presentation & Application Layers
   C.) Data Link , Transport & Presentation Layers
   D.) Network, Session & Application Layers

Answer: Option 'B'

Session, Presentation & Application Layers of OSI model are combined to a single layer called application layer in the TCP model.

DigitalOcean Referral Badge

16.

A __________ is a computer network that usually spans a city or a large campus.

   A.) LAN
   B.) DAN
   C.) MAN
   D.) WAN

Answer: Option 'C'

MAN is abbreviation for Metropolitan Area Network and is a computer network that usually spans a city or a large campus.

DigitalOcean Referral Badge

17.

Which layer in the OSI Model provides error-free delivery of data?

   A.) PresentationLayer
   B.) Transport Layer
   C.) Session Layer
   D.) Physical Layer

Answer: Option 'B'

Transport Layer ensures that the data is delivered error-free in sequence and with no loss, duplication or corruption.

DigitalOcean Referral Badge

18.

What does MAN stands for?

   A.) Micro area network
   B.) Metropolitan area network
   C.) Macro area network
   D.) Mix area network

Answer: Option 'B'

MAN is abbreviation for Metropolitan Area Network.

DigitalOcean Referral Badge

19.

If you wish to extend the length of the network without having the signal degrade, you would use a __________.

   A.) repeater
   B.) router
   C.) gateway
   D.) switch

Answer: Option ''

If you wish to extend the length of the network without having the signal degrade, you would use a repeater.

DigitalOcean Referral Badge

20.

LANs can be connected by devices called ______ which operate on the data link layer.

   A.) hub
   B.) HDLC
   C.) bridges
   D.) tunnel

Answer: Option ''

LANs can be connected by bridges. Bridge is a device used to connect two separate Ethernet networks into one extended Ethernet.

DigitalOcean Referral Badge

21.

How long is an IPv6 address?

   A.) 32 bits
   B.) 128 bytes
   C.) 64 bits
   D.) 128 bits

Answer: Option 'D'

IPv6 address  is 128 bits long.

DigitalOcean Referral Badge

22.

What does P2P stands for? 

   A.) Peer To Peer
   B.) Peek to peek
   C.) Past to past
   D.) Pair to pair

Answer: Option 'A'

P2P stands for Peer To Peer.

DigitalOcean Referral Badge

23.

What does P2P stands for? 

   A.) Peer To Peer
   B.) Peek to peek
   C.) Past to past
   D.) Pair to pair

Answer: Option 'A'

P2P stands for Peer To Peer.

DigitalOcean Referral Badge

24.

IP addresses are converted to ____________.

   A.) a bit
   B.) alphanumeric string
   C.) a hierarchy of domain names
   D.) TCP

Answer: Option 'C'

IP addresses are converted to a hierarchy of domain names.

DigitalOcean Referral Badge

25.

After a credit card transaction has been authorized by the issuing bank by sending an authorization code to the merchant, the settlement stage of the process begins. Which of the following is a system type used to process such statements?

   A.) Multitasking
   B.) Memory Processing
   C.) Level Processing
   D.) Batch Processing

Answer: Option 'D'

After a credit card transaction has been authorized by the issuing bank by sending an authorization code to the merchant, the settlement stage of the process begins. This is called batch processing because a number (or batch) of transactions is settled all at one time.

DigitalOcean Referral Badge

26.

The layer is the layer closest to transmission medium.

   A.) transport
   B.) network
   C.) data link
   D.) physical

Answer: Option 'D'

Physical layer is closest to transmission medium.

DigitalOcean Referral Badge

27.

HTTP is a/an ________ protocol.

   A.) application layer
   B.) transport layer
   C.) network layer
   D.) Physical Layer

Answer: Option 'A'

The HyperText Transfer Protocol, or HTTP, is the most widely used Application layer protocol in the world today. It forms the basis of what most people understand the Internet to be—the World Wide Web. Its purpose is to provide a lightweight protocol for the retrieval of HyperText Markup Language (HTML) and other documents from Web sites throughout the Internet. Each time you open a Web browser to surf the Internet, you are using HTTP over TCP/IP.

DigitalOcean Referral Badge

28.

Which of the following HTML elements is the starting element in all HTML document?

   A.) Root
   B.) Metadata
   C.) Section
   D.) Heading

Answer: Option 'A'

The Root element is the starting element in an HTML document, and it is present in all HTML documents.

DigitalOcean Referral Badge

29.

Routers operate at which layer of the OSI model?

   A.) physical
   B.) transport
   C.) network
   D.) session

Answer: Option 'C'

Router functions in the network layer.

DigitalOcean Referral Badge

30.

Who invented the QWERTY keyboard?

   A.) Carl Sholes
   B.) Karl Sholes
   C.) Christopher Latham Sholes
   D.) Khristopher Sholes

Answer: Option 'C'

Christopher Latham Sholes invented the keyboard in 1868.

DigitalOcean Referral Badge

31.

Bits are packaged into frames at which layer of the OSI model?

   A.) Data link
   B.) Transport
   C.) Physical
   D.) Presentation

Answer: Option 'A'

Bits are PDU of Layer-1 and Frames are PDU of Layer-2 Data Link Layer

DigitalOcean Referral Badge

32.

What is Windows Vista?

   A.) Processor
   B.) Operating System
   C.) Input device
   D.) Memory

Answer: Option 'B'

Windows Vista is an operating system, designed and marketed by Microsoft Inc

DigitalOcean Referral Badge

33.

Which of the following operate at the presentation layer?
1) MIDI 
2) FTP 
3) SMTP 
4) TFTP  
5) JPEG

   A.) 1 and 2
   B.) 1, 3, and 5
   C.) 3 and 5 
   D.) 1 and 5

Answer: Option 'D'

MIDI and JPEG are presentation layer specific protocols.

DigitalOcean Referral Badge

34.

Which of the following is not a DBMS software?

   A.) dBASE
   B.) FoxPro
   C.) Oracle
   D.) Database2000

Answer: Option 'D'

Database2000 is not a DBMS Software.

DigitalOcean Referral Badge

35.

What is referred to as the organisation of data as a blueprint of how the database is constructed?

   A.) Primary Key
   B.) Candidate Key
   C.) Schema 
   D.) Cardinality

Answer: Option 'C'

A database schema is the skeleton structure that represents the logical view of the entire database. It defines how the data is organized and how the relations among them are associated.

DigitalOcean Referral Badge

36.

Which of the following is intangible in nature?

   A.) Software 
   B.) VDU
   C.) POS Terminal
   D.) USB Port

Answer: Option 'A'

Software is intangible in nature. Intangible means unable to be touched; not having physical presence. 

DigitalOcean Referral Badge

37.

Which among the following is an appropriate binary conversion for the number 013 (which is of base 8)?

   A.) 101010
   B.) 11011
   C.) 1011
   D.) 1110

Answer: Option 'C'

1011

DigitalOcean Referral Badge

38.

Which of the following is a Logical Disjunction?

   A.) OR gate
   B.) AND gate 
   C.) NOT gate
   D.) both(a) and (b)

Answer: Option 'A'

When two statements are combined with 'OR,' then it is a disjunction. When two statements are combined with an 'and,' you have a conjunction.

DigitalOcean Referral Badge

39.

'Ctrl +Esc' is the shortcut key combination for?

   A.) Shows the start menu 
   B.) shows the format menu
   C.) Shows the tools menu
   D.) shows the insert menu

Answer: Option 'A'

'Ctrl +Esc' is used to show the start menu.

DigitalOcean Referral Badge

40.

Who is called the father of modern computing?

   A.) Charles Babbage 
   B.) Hollerith
   C.) Gottfried von Leibnitz
   D.) Joseph M. jacquard

Answer: Option 'A'

Charles Babbage is the father of modern computing. He was also the inventor of Analytical engine and difference engine.

DigitalOcean Referral Badge

41.

Which of the following statement is closely related to Hypertext?

   A.) Text stored in the memory of the computer
   B.) A system of managing textual Information by creating associations between different documents
   C.) Special text used in Internet developing package
   D.) Text displayed on the screen of the computer

Answer: Option 'B'

Hypertext is text which contains links to other texts.

DigitalOcean Referral Badge

42.

From which of the following contents are lost when a computer is turned off?

   A.) non-volatile storage
   B.) input
   C.) output
   D.) volatile storage

Answer: Option 'D'

Volatile memory, contrary to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents while powered on but when the power is interrupted, the stored data is lost immediately or very rapidly.

DigitalOcean Referral Badge

43.

Which of the following is not a network topology?

   A.) Co-linear
   B.) Bus
   C.) Rhombus
   D.) Both (a) and (c) 

Answer: Option 'D'

Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network. Some popular network topologies are Star, Ring, Bus, Mesh, Tree and Hybrid topology

DigitalOcean Referral Badge

44.

Which of the following option best refer the purpose of an application program?

   A.) Meet specific user needs 
   B.) Make equivalent run better
   C.) Allow the operating system to control resources better
   D.) Convert program written in high-level language to machine level language

Answer: Option 'A'

Application Programs cater to specific need of the user as they are designed to accomplish a particular type of task or specific purpose.

DigitalOcean Referral Badge

45.

What does DMA stands for?  

   A.) Distinct Memory Access 
   B.) Direct Memory Access 
   C.) Direct Module Access 
   D.) Direct Memory Allocation 

Answer: Option 'B'

Direct Memory Access (DMA) enables selective hardware to directly fetch memory of the computer system i.e. RAM. 

DigitalOcean Referral Badge

46.

Functions of keys F1, F2 and F3 are _____________ respectively.

   A.) activating menu bar, search and renaming selected icon
   B.) search, reboot and activating menu bar
   C.) activating help, renaming selected icon and search
   D.) reboot, activating help and refresh

Answer: Option 'C'

Functions of keys F1, F2 and F3 are activating help, renaming selected icon and search respectively.

DigitalOcean Referral Badge

47.

To which of the following categories do operating systems and debuggers belong? 

   A.) System software 
   B.) Application software 
   C.) Utilities 
   D.) Programming Language

Answer: Option 'B'

System software is developed to serve as a bridge between the hardware and the user, as the software directly communicates with the hardware. Operating systems and debuggers are two best examples of system software.  

DigitalOcean Referral Badge

48.

Which of the following describe router functions?

   A.) Packet switching
   B.) Packet filtering
   C.) Internetwork communication
   D.) All of the above

Answer: Option 'D'

All of the given options are router functions.

DigitalOcean Referral Badge

49.

Which among the following computer network usually spans a city or a large campus?

   A.) LAN
   B.) DAN
   C.) MAN
   D.) WAN

Answer: Option 'C'

MAN is an abbreviation for Metropolitan Area Network and is a computer network that usually spans a city or a large campus.

DigitalOcean Referral Badge

50.

Which of the following techniques can be used to store a large number of files in a small amount of storage space?  

   A.) File adjustment 
   B.) File copying 
   C.) File compatibility 
   D.) File compression 

Answer: Option 'D'

File compression is the technique used to store the large file in a small storage space. It compresses to content of the file in such a way that there is no harm done on the file content and quality. 

DigitalOcean Referral Badge

Computer Questions for NICL AO Mains Download Pdf

Recent Posts

RRB NTPC and RRB Group D Model Papers in Telugu

RRB NTPC and RRB Group D Model Papers in Hindi हिंदी

RRB ALP Study Material | Mock Test


© 2013 - 2023 by Indian Study Hub. All Rights Reserved | Copyright | Terms of Use & Privacy Policy

Contact us: info@indianstudyhub.com Follow us on twitter!