ISC Computer Science 2024 Specimen Paper with Answers
All 28 questions of the ISC Computer Science 2024 Specimen Paper, in printed order. Open a question to read it in full and see its answer.
- Q1(i) Absorption law states that: 1 mark · MCQ
- Q1(ii) $A=0\quad B=1\quad C=0$ and $D=1$ and minterm is $A' \cdot B \cdot C' \cdot D$ Which one of the following options is correct? 1 mark · Assertion-reason
- Q1(iii) According to the Principle of duality, the Boolean equation $(P + Q') \cdot R \cdot 1 = P \cdot R + Q' \cdot R$ will be… 1 mark · MCQ
- Q1(iv) The complement of the Boolean expression $(X \cdot Y)' + Z'$ is: 1 mark · MCQ
- Q1(v) The equivalent of $P \land Q \lor \sim P \land \sim Q$ will be: 1 mark · MCQ
- Q1(vi) Boolean algebra and Binary number system are different from each other. 1 mark · Assertion-reason
- Q1(vii) What is the relevance of the keyword static for a data member of a class 1 mark · Short answer
- Q1(viii) State any one purpose of using interfaces in Java programming. 1 mark · Short answer
- Q1(ix) Define Canonical form of an expression with respect to its Cardinal form. 1 mark · Short answer
- Q1(x) State any one application each of half adder and full adder. 1 mark · Short answer
- Q2(i) Convert the following infix notation to postfix form. ( A / B + C ) / ( D * ( E − F ) 2 marks · One word
- Q2(ii) An array ARR[ −4 …..6, −2…..12] , stores elements in Row Major Wise, with the address ARR[2][3] as 4142. If each element requires… 2 marks · One word
- Q2(iii) The following functions are a part of some class: … What will the output of Try( ) when the value of ch[]={‘P’, ‘L’,‘A’, ‘Y’} and… 3 marks · Short answer
- Q2(iv) The following function is a part of some class which computes and returns the value of a number ‘p’ raised to the power ‘q’… 3 marks · Fill in
- Q3(i) A Football Association coach analyses the criteria for a win/draw of his team depending on the following conditions. • If the… 5 marks · Long answer
- Q3(ii) Reduce the above expression $X (C, D, F, G)$ by using 4-variable Karnaugh map, showing the various groups (i.e. octal, quads and… 5 marks · Drawing
- Q4(i) Reduce the Boolean function $F(A,B,C,D) = \pi (0, 1, 2, 3, 4, 6, 9, 11, 13)$ by using 4-variable Karnaugh map, showing the… 5 marks · Drawing
- Q4(ii) From the logic circuit diagram given below, name the outputs (1), (2) and (3) and finally derive the Boolean expression (F) and… 5 marks · Numerical
- Q5(i) Draw the logic circuit to encode the following Hexadecimal number (1, 3, 5, 6, 9, A, C, E) to its binary equivalents. Also state… 5 marks · Drawing
- Q5(ii) Verify if the following proposition is valid using the truth table… 3 marks · Short answer
- Q5(iii) How is a 2 to 4 decoder related to 4:1 multiplexer? 2 marks · Short answer
- Q6 An Evil Number is a number which contains even number of 1’s in its binary equivalent. Example: Binary equivalent of 10 = 1010… 10 marks · Program
- Q7 A class Composite contains a two-dimensional array of order [m x n]. The maximum values possible for both ‘m’ and ‘n’ is 20… 10 marks · Program
- Q8 A class Encode has been defined to replace only the vowels in a word by the next corresponding vowel and form a new word. i.e. A… 10 marks · Program
- Q9 Shelf is a kind of data structure which can store elements with the restriction that an element can be added from the rear end… 5 marks · Program
- Q10 A super class Circle has been defined to calculate the area of a circle. Define a subclass Volume to calculate the volume of a… 5 marks · Program
- Q11(i) With the help of an example, briefly explain the constant factor in time complexity. 2 marks · Short answer
- Q11(ii) Answer the following questions from the diagram of a Binary Tree given below: Name the external nodes of the right sub tree… 3 marks · Short answer