CBSE Class 12 Computer Science File System MCQs Set F

CBSE Class 12 Computer Science File System Online Test Set F with answers available in Pdf for free download. The MCQ Questions for Class 12 Computer Science with answers have been prepared as per the latest 2021 syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Multiple Choice Questions for important part of exams for Grade 12 Computer Science and if practiced properly can help you to get higher marks. Refer to more Chapter wise MCQs for NCERT Class 12 Computer Science and also download more latest study material for all subjects

Question: The______service also provides the facility of finding the nearest ATM Centre, Bank, Restaurant, Bus-stop or any other such essential place.

  • a) Google Tools
  • b) Google Watch
  • c) Google Maps
  • d) Character Maps

Answer: Google Maps


Question: The________program can be used to enter Unicode characters into any application.

  • a) Character Symbol
  • b) Character Map
  • c) Character Code
  • d) Character Application

Answer: Character Map


Question: From the_______program Script has to be selected from the left pane first and then double click characters to insert them into the Test to copy area below.

  • a) Character Symbol
  • b) Character Map
  • c) Character Code
  • d) Character Application

Answer: Character Map


Question: While using______program, spaces and punctuation can be entered by the user from the keyboard directly into the area after clicking in it.

  • a) Character Map
  • b) Character Codes
  • c) Google Maps
  • d) Character Selection

Answer: Character Map


Question: Brief details of the character currently selected with single-click or entered with double-click are shown in the status line at the bottom, while more details on the character is available in the______tab.

  • a) Character Details
  • b) Character Map
  • c) Character Tools
  • d) Google Maps

Answer: Character Details


Question: A_______is good solution if one has to type a few characters in another script occasionally.

  • a) Character Details
  • b) Character Map
  • c) Character Tools
  • d) Google Maps

Answer: Character Details


Question: ______is a free software environment for statistical computing.

  • a) P
  • b) Q
  • c) R
  • d) GNU

Answer: R


Question: R software is a_______project.

  • a) P
  • b) Q
  • c) R
  • d) GNU

Answer: GNU


Question: ______software is widely used for statistical analysis.

  • a) P
  • b) Q
  • c) R
  • d) GNU

Answer: R


Question: R software has its own_______language.

  • a) Scripting
  • b) Object-oriented
  • c) Simple
  • d) Programming

Answer: Scripting


More Questions.......................


Question: ______software has a case-sensitive language.

  • a) P
  • b) Q
  • c) R
  • d) GNU

Answer: R


Question: R software has______work environments namely Command Line and Graphical.

  • a) one
  • b) Two
  • c) Three
  • d) Four

Answer: Two


Question: To use R software in a_______environment, it has to be installed with graphic editors.

  • a) DOS
  • b) Windows
  • c) GUI
  • d) All of these

Answer: GUI


Question: Examples of Graphic Editors are_______

  • a) R Commander
  • b) R Studio
  • c) Both (A) and (B)
  • d) None of these

Answer: Both (A) and (B)


Question: The above named Graphic Editors are from______Software Center.

  • a) Linux
  • b) Unix
  • c) Ubuntu
  • d) Archive Manager

Answer: Ubuntu


Question: To install R software on the machines, give the______command.

  • a) Sudo apt-get install r-base r-base-devlop
  • b) Studio apt-get install r-base r-base-dev
  • c) Sudo apt-get install r-base r-base-dev
  • d) None of these

Answer: Sudo apt-get install r-base r-base-dev


Question: To invoke the_______scripts from terminal window, open terminal and type on the command prompt.

  • a) Unix
  • b) Linux
  • c) R
  • d) Shell

Answer: R


Question: Just like the Linux shell, R uses______as the comment marker.

  • a) #
  • b) //
  • c) /* */
  • d) ?

Answer: #


Question: Any text following_______up to the end of the line, is treated as a comment.

  • a) #
  • b) //
  • c) /* */
  • d) ?

Answer: #


Question: In R software, number and string are the basic________

  • a) Method Types
  • b) Declaration Types
  • c) Data Types
  • d) Variable Types

Answer: Data Types


Question: In R software_______are enclosed in single quotes or double quotes.

  • a) Numbers
  • b) Strings
  • c) Characters
  • d) Commands

Answer: Strings


Question: In R software, common________and functions are available, just like other programming languages.

  • a) Commands
  • b) Operators
  • c) Numerals
  • d) Characters

Answer: Operators


Question: Ordered lists of items (arrays or lists) are commonly used and are also referred to as______

  • a) Vectors
  • b) Paths
  • c) Routes
  • d) Directions

Answer: Vectors


Question: Lists are created using the_______function to combine several numbers into a single list.

  • a) C++
  • b) Basic
  • c) c
  • d) ls

Answer: c


Question: Most operators in R software, like +, -, *, /, and others work equally well on single________as well as on lists.

  • a) Number
  • b) String
  • c) Character
  • d) Operand

Answer: Number


Question: However, in R software, when both_______of binary operators are lists, their lengths (number of elements in them) should ordinarily be same.

  • a) Numbers
  • b) Strings
  • c) Characters
  • d) Operands

Answer: Operands


Question:

13

The statement > a <-- 10 defines a______'a' and assigns it a value 10.

  • a) Numeral
  • b) Letter
  • c) String
  • d) Variable

Answer: Variable


Question:

13

The statement > a followed by..........key press displays the value of a.

  • a) ENTER
  • b) TAB
  • c) SHIFT
  • d) F2

Answer: ENTER


Question:

13

The statement > a*b followed by _____key press multiplies the value of variable 'a' and 'b' and displays the result on the prompt.

  • a) ENTER
  • b) TAB
  • c) SHIFT
  • d) F2

Answer: ENTER


Question: R command to quitting is_______

  • a) Quit()
  • b) q()
  • c) Exit
  • d) All of these

Answer: q()

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