Computer Questions for NICL AO Mains for 2019

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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.

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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.

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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.

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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.

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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

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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.

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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

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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.

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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.

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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.

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