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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Reasoning:I. We can store a value in a variable using assignment operator.II. We can change the value in a variable using assignment operator.III. Assignment operator is = = (a) I and III is true (b) I and II is true (c) II and III is true (d) I, II, III is true |
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Answer» (b) I and II is true |
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| 2. |
Which one of the following is the most effective mental tool used for managing complexity?(a) Specification(b) Abstraction(c) Composition(d) Decomposition |
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Answer» (b) Abstraction |
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| 3. |
If \(\sqrt{2} \) = 1.414, and the square_root() function returns – 1.414, does it violate the following specification?1. – – square – root(x)2. – – inputs: x is a real number, x > 03. – – outputs: y is a real number such that y = x |
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Answer» No, because (- 1.414)2 = 2, which satisfies input – output relation (y2 = x) |
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| 4. |
Specify a function to find the minimum of two numbers. |
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Answer» 1. – – minimum (a,b) 2. – – inputs : a, b are real numbers. 3. – – output: result: = minimum (a,b) |
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| 5. |
Initially, farmer, goat, grass, wolf = L, L, L, L and the farmer crosses the river with goat. Model the action with an assignment statement. Model of the action with an assignment statement: |
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Answer» 1. — farmer, goat,grass,wolf = L,L,L,L. 2. Farmer,goat: = R,R 3. – farmer,goat,grass,wolf = R,R,L,L 4. – farmer: = L 5. — farmer,goat,grass,wolf = L,R,L,L 6. farmer,grass: = R,R 7. — farmer,goat,grass,wolf = R,R,R,L 8. farmer,goat: = L,L 9. — farmer,goat,grass, wolf = L,L,R,L 10. farmer, wolf: = R,R 11. — farmer,goat,grass, wolf = R,L,R,R 12. farmer: = L 13. — farmer,goat,grass,wolf = L,L,R,R 14. farmer, goat: = R,R 15. — farmer,goat,grass,wolf = R,R,R,R |
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| 6. |
Define an algorithm. |
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Answer» An algorithm is a step by step sequence of statements intended to solve a problem. An algorithm starts execution with the input data, executes the statements and finishes execution with the output data. |
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| 7. |
If O < i before the assignment i : = i – 1 after the assignment, we can conclude that(a) 0 < i (b) 0 ≤ i (c) i = 0 (d) 0 ≥ i |
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Answer» Answer is (b) 0 ≤ i |
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| 8. |
……….. is the left side of the assignment.(a) variable(b) value(c) operator(d) all the above |
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Answer» (c) operator |
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| 9. |
Distinguish between an algorithm and a process. |
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Answer» Algorithm:
Process:
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| 10. |
If i: = 3 before the assignment, i: = i + 1 after the assignment ……..(a) 3 (b) 4 (c) 5 (d) 0 |
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Answer» If i: = 3 before the assignment, i: = i + 1 after the assignment 4 |
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| 11. |
Each part of algorithm is known as ……..(a) input(b) function(c) variable(d) program |
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Answer» Each part of algorithm is known as function |
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| 12. |
…….. statement is used to store a value in a variable. (a) Assignment(b) Sequential control flow(c) Alternative control flow(d) Iterative |
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Answer» (a) Assignment |
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| 13. |
What is the specification of the algorithm? (a) divide (A + B)(b) square – root (n)(c) square – root (x)(d) adding (A, B) |
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Answer» (b) square – root (n) |
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| 14. |
…….. state the properties of the given input and the relation between the input and the output.(a) Composition(b) Abstraction(c) Decomposition(d) Specification |
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Answer» (d) Specification |
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| 15. |
Ensuring the input – output relation is …… (a) the responsibility of an algorithm and the right of the user.(b) the responsibility of the user and the right of the algorithm.(c) the responsibility of the algorithm but not the right of the user.(d) the responsibility of both the user and the algorithm. |
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Answer» (a) the responsibility of an algorithm and the right of the user. |
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| 16. |
Stating the input property and the input-output relation a problem is known …….. (a) specification (b) statement (c) algorithm (d) definition |
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Answer» Stating the input property and the input-output relation a problem is known specification. |
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| 17. |
…….. how many control flow statement are there to alter the control flow depending on the state?(a) 5(b) 6 (c) 3 (d) 8 |
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Answer» There are 3 control flow statement to alter the control flow depending on the state. |
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| 18. |
If i = 5 before the assignment i : = i – 1 after the assignment, the value of i is ……..(a) 5 (b) 4 (c) 3 (d) 2 |
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Answer» If i = 5 before the assignment i : = i – 1 after the assignment, the value of i is 4 |
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| 19. |
Omitting details inessential to the task and representing only the essential features of the task is known as ……..(a) specification(b) abstraction (c) composition(d) decomposition |
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Answer» (b) abstraction |
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| 20. |
Which of the following activities is not algorithmic in nature?(a) Multiply two numbers(b) Draw a kolam(c) Walk in the park(d) Braid the hair |
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Answer» (d) Braid the hair |
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| 21. |
Which of the following activities is algorithmic in nature?(a) Assemble a bicycle(b) Describe a bicycle(c) Label the parts of a bicycle(d) Explain how a bicycle works |
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Answer» (a) Assemble a bicycle |
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| 22. |
What is the difference between assignment operator and equality operator? |
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Answer» Assignment Operator: Assignment operator is used to assign the values to the variable. Equality Operator: The equality operator is used to compare the values of both the variables and the result is true or false. |
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| 23. |
What is the form and meaning of assignment statement? |
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Answer» Assignment statement is used to assign values to the variables. The variable on the left side of the assignment operator and a value on the right side. Variable : = Value |
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| 24. |
What is abstraction? |
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Answer» Abstraction: It is the facility to define objects. It also involves removal of unnecessary attributes and defining only essential attributes. For example, when we represent the state of a process we select only the variables essential to the problem and ignore inessential details |
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| 25. |
If – – m, n = 22, 5 and m, n : = m + 3, n – 1 then the value of m and n are …..(a) 25, 4 (b) 24,5 (c) 22, 5 (d) 23,21 |
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Answer» If – – m, n = 22, 5 and m, n : = m + 3, n – 1 then the value of m and n are 25, 4 |
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| 26. |
If i: = 10 before the assignment, then i: = i % 2 after the assignment(a) 10(b) 5 (c) 0 (d) 1 |
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Answer» Answer is (c) 0 |
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| 27. |
If i: = 2 before the assignment, then i: = i * 3 after the assignment is ……..(a) 6(b) 5(c) 0(d) 1 |
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Answer» If i: = 2 before the assignment, then i: = i * 3 after the assignment is 6 |
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| 28. |
Differentiate asymmetric and symmetric algorithms? |
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Answer» Symmetric Key Encryption: 1. Same key is used for both encryption and decryption 2. Speed of encryption or decryption is very fast 3. Plain text and cipher text are of same size 4. Algorithms like DES, AES, RC4 uses symmetric key encryption 5. Provides confidentiality 6. The number of key used grows exponentially with the number of users Asymmetric Key Encryption: 1. Different keys are used for encryption and decryption 2. Speed of encryption or decryption is comparatively slow 3. The size of cipher text is always greater than plain text. 4. Algorithms like RSA, ECC, DSA use asymmetric key encryption 5. Provides confidentiality, authenticity and ‘ nonrepudiation 6. The number of key used grows linearly with the number of users |
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| 29. |
which one of the following is the equality operator?(a) = (b) = = (c) + + (d) – – |
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Answer» = = is the equality operator. |
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| 30. |
which one of the following is the assignment operator?(a) = (b) = = (c) + = = (d) + + |
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Answer» = is the assignment operator. |
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| 31. |
Identify the statement which is not true?(a) An instruction describes an object(b) specification is one of the algorithm design techniques(c) An algorithm is a step by step sequence of instructions |
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Answer» (a) An instruction describes an object |
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| 32. |
Fill in the box given below figure ……(a) processing(b) solving(c) algorithm(d) functions |
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Answer» (c) algorithm |
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| 33. |
When do you say that a problem is algorithmic in nature? |
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Answer» A Problem is algorithmic in nature when its solution involves the construction of an algorithm. Also when the 1. Input data and output data of the problem is specified. 2. Relation between the input data and the output data is specified |
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| 34. |
which one of the following is the comment line in algorithm?(a) + + (b) 1 1 (c) – – (d) = = |
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Answer» – – is the comment line in algorithm |
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| 35. |
Which are the named boxes used for storing data?(a) data (b) variables (c) control flow (d) functions |
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Answer» (b) variables |
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| 36. |
Which one of the following is not a building block of algorithm(a) data (b) state (c) variables (d) functions |
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Answer» State is not a building block of algorithm. |
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| 37. |
Identify the correct statement ……..(a) The first part of specification is name of the algorithm with input (b) Second one is input properties with comments(c) Third one is relation between input – output(d) All the three are correct statements |
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Answer» (d) All the three are correct statements |
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| 38. |
How many basic building blocks construct an algorithm?(a) 3 (b) 4 (c) 5 (d) 8 |
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Answer» 4 basic building blocks construct an algorithm |
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| 39. |
The order of execution of statement is called : (a) Composition(b) Functions (c) Control flow (d) Specifications |
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Answer» (c) Control flow |
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| 40. |
Instructions of a computer are also known as ….. (a) commands (b) statements (c) Abstractions (d) Functions |
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Answer» (b) statements |
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| 41. |
Find the wrong statement from the following ……(a) The state of a process can be represented by a set of variables in an algorithm(b) The state at any point of execution is simply the values of the variables at that point.(c) As the values of the variables are changed, the state remains constant.(d) As a process evolves, the state changes |
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Answer» (c) As the values of the variables are changed, the state remains constant. |
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| 42. |
Identify the function name: square (A + B) …….. (a) A (b) B (c) A + B (d) square |
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Answer» Answer (d) square |
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| 43. |
Which one of the following statements are not executed the computers?(a) Comment line (b) Header file(c) cin (d) cout |
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Answer» (a) Comment line |
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| 44. |
Match the following1. Sequence of statementfunctions2. Parts of algorithmalgorithm3. Order of execution statementvariable4. Name box to store datacontrol flow(a) 2, 1, 4, 3 (b) 1, 2, 3, 4 (c) 4,3,2, 1 (d) 4, 2, 3, 1 |
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Answer» (a) 2, 1, 4, 3 |
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| 45. |
Which one of the following defines the rights and responsibilities of the designer and the user?(a) Abstraction(b) Composition(c) Decomposition(d) Specification |
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Answer» (d) Specification |
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| 46. |
Which one of the following statements are used to annotate a program for the human readers? (a) comments (b) state (c) variables(d) functions |
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Answer» (a) comments |
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| 47. |
Match the following1. SpecificationsHiding unnecessary details2. AbstractionsDivides main algorithm into functions3. CompositionRelations between input and output4. DecompositionsAn algorithm is composed of assignment and control flow statement(a) 3, 1, 4, 2(b) 1,2, 3, 4 (c) 4,3,2, 1 (d) 4, 2, 3, 1 |
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Answer» (a) 3, 1, 4, 2 |
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| 48. |
How is state represented in algorithms? |
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Answer» The state represented in a algorithm is set of variables. At any place the value of the variables are substituted and evaluation is done. |
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| 49. |
In which one of the control flow statements, if the condition is false, then alternative statement will be executed …….. (a) Sequential (b) iterative (c) selection (d) alternative |
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Answer» (d) alternative |
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| 50. |
Asymmetric encryption is also called as …….(a) Secure Electronic Transaction(b) Certification Authority(c) RSA algorithma(d) Payment Information |
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Answer» (c) RSA algorithm |
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