CBSE Class 12 Computer Science File System MCQs Set D

CBSE Class 12 Computer Science File System MCQs Set D 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: R command for accessing on line help is

  • a) On-line help()
  • b) Assist()
  • c) Help()
  • d) Help.start()

Answer: Help()


Question: R command for viewing some demonstration! is________

  • a) Rdemo()
  • b) Sample()
  • c) Example()
  • d) Demo()

Answer: Demo()


Question: R command to open the on line help in aj browser is_________

  • a) On-line help()
  • b) Assist()
  • c) Help()
  • d) Help.start()

Answer: Help.start()


Question: To get help on a particular function_____I help (function name) can be used.

  • a) Syntax
  • b) Function
  • c) Composition
  • d) Grammar

Answer: Syntax


Question: While quitting R, the software prompts whether the_______values of variables) has to be saved, from the current session.

  • a) Information
  • b) Data
  • c) Variables
  • d) All of these

Answer: Data


Question: The function_______displays a list of all the variables defined.

  • a) List_variables()
  • b) Disp()
  • c) List()
  • d) ls()

Answer: ls()


Question: A series of consecutive numbers (range) may be generated using the syntax_________

  • a) Begin rend
  • b) Start :end
  • c) Base :end
  • d) None of these

Answer: Start :end


Question: In R software________function can be used to find the minimum value for a list.

  • a) Median(list)
  • b) Mean(list)
  • c) Max(list)
  • d) Min(list)

Answer: Min(list)


Question: In R software_______function can be used to find the maximum value for a list.

  • a) Median(list)
  • b) Mean(list)
  • c) Max(list)
  • d) Min(list)

Answer: Max(list)


Question: In R software______function can be used to find the mean for a list.

  • a) Median(list)
  • b) Mean(list)
  • c) Max(list)
  • d) Min(list)

Answer: Mean(list)


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


Question: In R software,_______function can be used to find the median for a list.

  • a) Median(list)
  • b) Mean(list)
  • c) Max(list)
  • d) Min(list)

Answer: Median(list)


Question: In R software, the function________with various arguments is used for drawing a plot.

  • a) Plotbar
  • b) Bar_plot
  • c) Barplot
  • d) Bar-plot

Answer: Barplot


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The first argument (no_students) specifies the______list.

  • a) Data
  • b) Info
  • c) Student
  • d) Variable

Answer: Data


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: All other arguments have the form________

  • a) Name=variable
  • b) Value^name
  • c) Name=value
  • d) Variable=name

Answer: Name=value


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The argument______is used to specify the main title in the plot.

  • a) Main
  • b) Xlab
  • c) Ylab
  • d) Ylim

Answer: Main

Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques : The argument_______is used to specify the X-axis label in the plot.

  • a) Main
  • b) Xlab
  • c) Ylab
  • d) Ylim

Answer: Xlab


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The argument________is used to specify the Y-axis label in the plot.

  • a) Main
  • b) Xlab
  • c) Ylab
  • d) Ylim

Answer: Ylab


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The argument______is used to specify the values to be displayed for the bars of the plot.

  • a) Names.arg
  • b) Names.org
  • c) Names.list
  • d) Names.ylim

Answer: Names.arg


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The argument_____is used to specify the range of values to be plotted on the Y-axis in the plot.

  • a) Main
  • b) Xlab
  • c) Ylab
  • d) Ylim

Answer: Ylim


Question: Related to R commands : >barplot (no_students, main="Faculty wise students", xlab= "faculty", + ylab= "Number of students", names. arg=faculty_names, +ylim=c (0, 1000), border= "blue") Ques: The argument_______is used to specify the border color in the plot.

  • a) Main
  • b) Xlab
  • c) Ylab
  • d) Border

Answer: Border


Question: In R software, for long commands, when Enter is pressed before the command is complete, R issues the_____prompt until the command is completed.

  • a) #
  • b) *
  • c) >
  • d) +

Answer: +


Question: In R software, by_______the graph does not have grid lines.

  • a) Default
  • b) Command
  • c) Argument
  • d) None of these

Answer: Default


Question: Using R software________can also be produced.

  • a) Diagrams
  • b) Histograms
  • c) Figures
  • d) Flowcharts

Answer: Histograms


Question: _________is one such open source software designed to assist project managers in preparing, maintaining and following a well-defined project plan.

  • a) Rational_Plan
  • b) Rational-Plan
  • c) Rational Plan
  • d) Plan Rational

Answer: Rational Plan


Question: _____assists the project managers throughout the life cycle of their projects.

  • a) RationaL Plan
  • b) Rational-Plan
  • c) Rational Plan
  • d) Plan Rational

Answer: Rational Plan


Question: ______comprises three different desktops products.

  • a) RationaL Plan
  • b) Rational-Plan
  • c) Rational Plan
  • d) Plan Rational

Answer: Rational Plan

Question: Rational Plan comprises of the________desktop product.

  • a) Single
  • b) Multi
  • c) Viewer
  • d) All of these

Answer: All of these


Question: Rational Plan________.allows the users to manage independent projects that do not have common resources and has no interrelations between different projects.

  • a) Single
  • b) Multi
  • c) Viewer
  • d) All of these

Answer: Single


Question: Rational n Plan_______allows the manager to associate general project information like name, notes, links, assumptions, constraints or risks.

  • a) Single
  • b) Multi
  • c) Viewer
  • d) All of these

Answer: Single


Question: Rational Plan_______allows creating, editing and deleting calendars, building schedules.

  • a) Single
  • b) Multi
  • c) Viewer
  • d) All of these

Answer: Single

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