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NTS MCQs

National Testing Service — Complete MCQ Bank

1,081 Questions
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How to prepare for NTS

NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

EnglishQuantitative SkillsAnalytical ReasoningSubject Knowledge
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1011
Computer Science Medium

Which sorting algorithm repeatedly selects the smallest element and places it in the correct position?

  • AMerge Sort
  • BQuick Sort
  • CSelection Sort
  • DHeap Sort
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Correct Answer: Option C — Selection Sort
Explanation: Selection Sort repeatedly finds the minimum element from the unsorted portion and places it at the beginning. It is simple but inefficient for large datasets.
Submitted by: PaperMCQs
1012
Computer Science Easy

Which protocol is used to automatically assign IP addresses to devices on a network?

  • ADNS
  • BDHCP
  • CSMTP
  • DSNMP
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Correct Answer: Option B — DHCP
Explanation: Dynamic Host Configuration Protocol automatically assigns IP addresses and network configuration information to devices, simplifying network administration.
Submitted by: PaperMCQs
1013
Computer Science Easy

Which protocol translates domain names into IP addresses?

  • AHTTP
  • BFTP
  • CDNS
  • DSSH
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Correct Answer: Option C — DNS
Explanation: The Domain Name System (DNS) converts human-readable domain names into numerical IP addresses. This translation allows users to access websites using easy-to-remember names instead of complex numeric addresses.
Submitted by: PaperMCQs
1014
Computer Science Easy

Which database key uniquely identifies each record in a table?

  • AForeign Key
  • BCandidate Key
  • CPrimary Key
  • DComposite Key
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Correct Answer: Option C — Primary Key
Explanation: A Primary Key uniquely identifies each record in a database table. It cannot contain duplicate values or NULL values and ensures entity integrity within relational database systems.
Submitted by: PaperMCQs
1015
Computer Science Easy

What does URL stand for?

  • AUniversal Resource Locator
  • BUniform Resource Locator
  • CUnified Resource Link
  • DUniversal Retrieval Link
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Correct Answer: Option B — Uniform Resource Locator
Explanation: A Uniform Resource Locator (URL) specifies the address of a resource on the Internet. It identifies the protocol and location needed to access web pages, files, and other online services.
Submitted by: PaperMCQs
1016
Computer Science Easy

Which SQL command is used to retrieve data from a database?

  • AINSERT
  • BUPDATE
  • CSELECT
  • DDELETE
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Correct Answer: Option C — SELECT
Explanation: The SELECT statement retrieves data from one or more database tables. It is one of the most frequently used SQL commands and supports filtering, sorting, grouping, and joining data for analysis and reporting.
Submitted by: PaperMCQs
1017
Computer Science Easy

Which protocol is primarily used for sending emails over the Internet?

  • AHTTP
  • BSMTP
  • CFTP
  • DDNS
Permalink
Correct Answer: Option B — SMTP
Explanation: Simple Mail Transfer Protocol (SMTP) is the standard protocol used for sending email messages between servers and from clients to servers. It works alongside protocols such as POP3 and IMAP, which are used for receiving emails.
Submitted by: PaperMCQs
1018
Computer Science Easy

What is the primary function of an operating system?

  • ACreate websites
  • BManage hardware and software resources
  • CCompile programs
  • DDesign databases
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Correct Answer: Option B — Manage hardware and software resources
Explanation: An operating system acts as an intermediary between users and computer hardware. It manages memory, processes, files, devices, and security while providing services that allow applications to run efficiently and reliably.
Submitted by: PaperMCQs
1019
Computer Science Easy

Which number system is directly understood by a computer?

  • ADecimal
  • BBinary
  • COctal
  • DHexadecimal
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Correct Answer: Option B — Binary
Explanation: Computers operate using electronic circuits that recognize only two states, represented as 0 and 1. Therefore, all data and instructions are ultimately processed in binary form, making binary the fundamental language of computing systems.
Submitted by: PaperMCQs
1020
Computer Science Easy

Which type of memory loses its contents when power is turned off?

  • AROM
  • BFlash Memory
  • CRAM
  • DHard Disk
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Correct Answer: Option C — RAM
Explanation: Random Access Memory (RAM) is volatile memory, meaning its contents are lost when power is removed. RAM temporarily stores data and instructions currently being used by the CPU, enabling fast access and efficient processing.
Submitted by: PaperMCQs
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