Time Allowed: 2\u00a0hours<\/span> General Instructions to Candidates:<\/span><\/p>\n Answer all questions from question numbers 1 to 5. Each carry 1 score. (5 \u00d7 1 = 5)<\/span><\/p>\n Question 1. Question 2. Question 3. Question 4. Question 5. Answer any 9 questions from question numbers 6 to 16. Each carries 2 scores. (9 \u00d7 2 = 18)<\/span><\/p>\n Question 6. Question 7. Question 8. Question 9. Question 10. Question 11. Question 12. Question 13. Question 14. Question 15. Question 16. Answer any 9 questions from question numbers 17 to 27. Each carries 3 scores. (9 \u00d7 3 = 27)<\/span><\/p>\n Question 17. Question 18. Question 19. Question 20. Question 21. Question 22. Question 23. Question 24. Question 25. Star topology:<\/p>\n Ring topology:<\/p>\n Question 26. Question 27. Answer any 2 questions from question numbers 28 to 30. Each carries 5 scores. (2 \u00d7 5 = 10)<\/span><\/p>\n Question 28. b) Disadvantages of computer:<\/p>\n Question 29. b) i) -(-11)+ -3 = 8 Question 30. b) #inclUde<iostream>
\nCool off time: 15 Minutes<\/span>
\nMaximum Marks: 60<\/span><\/p>\n\n
\nThe number of symbols used in a number system is called ………….
\nAnswer:
\nBase or Radix<\/p>\n
\nPictorial representation of an algorithm is known as …………..
\nAnswer:
\nFlowchart<\/p>\n
\nWhat is the escape sequence characterfor new line in C++ program?
\nAnswer:
\n\\n<\/p>\n
\nThe starting symbol of a preprocessor directive statement is ………….
\nAnswer:
\n#<\/p>\n
\nWrite the full form of MAC.
\nAnswer:
\nMedia Access Control<\/p>\n
\nWhat is the importance of registers in computer system? Name any two registers.
\nAnswer:
\nRegisters are temporary storage locations inside the CPU. It stores the intermediate results temporarily. Memory Address Register, Instruction Register, Memory Buffer Register, Program Counter, Accumulator (Any 2)<\/p>\n
\nWhat do you mean human ware? Give any two examples.
\nAnswer:
\nPersons (Humans) who use computers are called human ware. System Administrator, System Manager, System Analyst, DBA, Programmers and Naive Users.<\/p>\n
\nExplain any two limitations of flow chart.
\nAnswer:
\nThe limitations are given below<\/p>\n\n
\nDifferentiate between character literal and string literal.
\nAnswer:
\nCharacter literal: A single character enclosed in single quotes. Eg. \u2018M\u2019, \u2018F\u2019, etc
\nString literal: A combination of characters enclosed in double quotes. Eg. \u201cIndia\u201d<\/p>\n
\nWhat is the use of comments in a programme? List out two ways to Include comments in C++ program.
\nAnswer:
\nTo give tips in between the program comments are used. A comment is not considered as the part of program and cannot be executed. There are 2 types of comments single line and multiline.
\nSingle line comment starts with \/\/(2 slashes) but multi line comment starts with \/* and ends with *\/<\/p>\n
\nList out type modifiers in C++.
\nAnswer:
\nWith the help of type modifiers we can change the sign and range of data with same size. The important modifiers are signed, unsigned, long and short.<\/p>\n
\nAssume that recently your school computer lab is networked. List any four advantages you can experienced when using networked computers instead of stand alone computers.
\nAnswer:
\nThe advantages of Networks are given below.<\/p>\n\n
\nName the major parts of an optical fibre cable.
\nAnswer:
\nOptical fibre has the following parts<\/p>\n\n
\n\u201cServers have much importance in a client server network\u201d. Write the importance and list any two classifications of servers.
\nAnswer:
\nA server is a powerful computer with high storage capacity that provides services like sharing data, software and hardware.
\nEg. File server, Print Server, Database server, Web server Etc.<\/p>\n
\nE-mail is a popular communication tool. Discuss any two advantages of E-mail.
\nAnswer:
\nThe advantages of E-mail is speed, easy to use, facility for attach files, eco-friendly, cost-effective, anywhere any time, etc.<\/p>\n
\nWrite any two challenges for implementing e-Governance.
\nAnswer:
\nChallenges to E-Governance:<\/p>\n\n
\nExplain any three freedom designed by FSF for software.
\nAnswer:
\nThe Four freedoms are<\/p>\n\n
\nAs a student, explain any three approaches that you can adopt to Promote \u2018Green Computing\u2019.
\nAnswer:
\nFollowing are the steps to promote green computing<\/p>\n\n
\nDifferentiate between Entry Controlled Loop and Exit Controlled loop.
\nAnswer:
\nAn entry controlled loop first checks the condition and execute(or enters into) the body of loop only if it is true. But exit control loop first execute the body of the loop once even if the condition is false then check the condition. The for loop and while loop are entry controlled loops but do-while loop is an exit controlled loop.<\/p>\n
\nWrite an algorithm to find the biggest of two numbers.
\nAnswer:
\nStep 1: Start
\nStep 2: Input 2 numbers. n1, n2
\nStep 3: If n1>n2 then
\nStep 4: Print n1
\nStep 5: Else
\nStep 6: Print n2
\nStep 7: Stop<\/p>\n
\nWhat is statements? Explain any two types of statements in C++.
\nAnswer:
\nStatements are smallest executable units end with semicolon.
\nEg: Declaration
\nint x;
\nassignment
\nx=5;
\ninput
\ncin>>x;
\noutput
\ncout>>x;
\nand control statements<\/p>\n
\na) What is constant?
\nb) Write the keyword for constant declaration in C++.
\nc) Give an example.
\nAnswer:
\na) Its value doesn\u2019t change during execution.
\nb) const
\nc) const int bp=100; (Note that value must be initialized)<\/p>\n
\nExplain the different types of logical operators.
\nAnswer:
\nLogical operators: Here AND(&&), OR(||) are binary operators and NOT(!) is a unary operator. It is used to combine relational operations and it gives either true(1) or false(0).
\nIf x=1 and y=0 then
\n![\"Plus](\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2021\/01\/Plus-One-Computer-Application-Previous-Year-Question-Paper-March-2019-1.png\")
\nBoth operands must be true to get a true value in the case of AND (&&) operation
\nIf x = 1 and y = 0 then
\n![\"Plus](\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2021\/01\/Plus-One-Computer-Application-Previous-Year-Question-Paper-March-2019-2.png\")
\nEither one of the operands must be true to get a true value in the case of OR (||) operation
\nIf x = 1 and y = 0then
\n![\"Plus](\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2021\/01\/Plus-One-Computer-Application-Previous-Year-Question-Paper-March-2019-3.png\")
<\/p>\n
\nConsider the following code.
\nint i=1
\nfor(;;)
\n{
\ncout<<i<<“\\n\u201d
\n}
\na) Find the output
\nb) Rewrite the code by using while loop with i<=10 and i = i+2 inappropriate place for successful code execution.
\nAnswer:
\na) It is an infinite loop. It prints 1 infinitely
\nb) int i=1;
\nwhile(i<=10)
\n{
\ncout<<i<<\u201c\\n\u201d;
\ni = i+2;
\n}<\/p>\n
\na) Define Network Topology.
\nb) Compare Ring Topology with Star Topology.
\nAnswer:
\nThe way in which the nodes are physically interconnected to form a network is called a topology.<\/p>\n\n
\n
\nYour, friend wants to take an internet connection. Explain and compare any three types of broadband connectivity available now-a-days.
\nAnswer:
\nWireless broadband connectivity
\na) Mobile broadband: Accessing Internet using wireless devices like mobile phones, tablet, USB dongles.
\nb) Wi MAX (Wireless Microwave Access): It uses micro waves to transmit information across a network in a range 2 GHz to 11 GHz over very long distance.
\nc) Satellite broadband: Accessing internet through satellite. A Very Small Aperture Terminal(VSAT) dish antenna and transceiver and modem are required at the user\u2019s location. Expensive and highspeed.<\/p>\n
\ne-Learning playing an important role in education field.
\nDiscuss any three advantages of e-Learning.
\nAnswer:
\nAdvantages of E Learning:<\/p>\n\n
\na) List down the functional units of a computer by using a diagram. (2)
\nb) What are the advantages and limitations of a computer? (3)
\nAnswer:
\na) Functional units of computer:
\nA computer is not a single unit but it consists of many functional units(intended to perform jobs) such as Input unit, Central Processing Unit (ALU and Control Unit), Storage (Memory) Unit and Output Unit.
\n![\"Plus](\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2021\/01\/Plus-One-Computer-Application-Previous-Year-Question-Paper-March-2019-4.png\")
<\/p>\n
\nAdvantages of computer:<\/p>\n\n
\n
\na) What is operator? Classify the operators based on number of operands. (2)
\nb) Find the output of the following operations if x = -11 and Y = 3
\ni) -x + -y
\nii) x% – y
\niii) x% – 11
\niv) (x>y)&&(x<y)
\nv) ! (x<y)
\nvi) x * y (3)
\nAnswer:
\na) An operator is a symbol used to perform an operation. The classifications are<\/p>\n\n
\nii) -11 % -3 = -2
\nHi) -11 % -11 = 0
\niv) (-11>3)&&(-11<3)
\n0&&1 = 0(false)
\nv) !(-11<3) = !(1) = 0(false)
\nvi) -11*3 = -33<\/p>\n
\na) List the four components of a Loop Statements.
\nb) Write a C++ program to find the sum of numbers up to 100 by using any loop statement.
\nAnswer:
\na) Following are the components of loop statement<\/p>\n\n
\nusing namespace std;
\nint main()
\n{
\nint i=1, sum=0;
\nfor(i=1;i<=100;i++)
\nsum+=i;
\ncout<<\u201cThe sum of numbers upto 100 is \u201c<<sum;
\n}<\/p>\nPlus One Computer Application Previous Year Question Papers and Answers<\/a><\/h4>\n","protected":false},"excerpt":{"rendered":"