PGT Computer Science (Level-3), (HTET Practice MCQs) (Part-V)Total Questions: 10041. Match the following in Unix file system: List-I List-II (a) Boot block (i) Information about file system (b) Super block (ii) Information about file (c) Inode table (iii) Storage space (d) Data block (iv) Code for making OS readyCodes: Option (a) (b) (c) (d) A. (iv) (i) (ii) (iii) B. (i) (iii) (ii) (iv) C. (iii) (i) (ii) (iv) D. (iv) (ii) (i) (iii)A.B.C.D.Correct Answer: A.42. In an operating system, indivisibility of operation means:A. Operation is interruptableB. Race-condition may occurC. Processor can not be pre-emptedD. All of the aboveCorrect Answer: C. Processor can not be pre-empted43. A horn clause is ............... .A. A clause in which no variables occur in the expressionB. A clause that has at least one negative literalC. A disjunction of a number of literalsD. A clause that has at most one positive literalCorrect Answer: D. A clause that has at most one positive literal44. In Propositional Logic, given P and PQ, we can infer ................. .A. ~ QB. QC. P ∧ QD.~ P ∧ QCorrect Answer: B. Q45. Reasoning strategies used in expert systems include ................... .A. Forward chaining, backward chaining and problem reductionB. Forward chaining, backward chaining and boundary mutationC. Forward chaining, backward chaining and back propagationD. Backward chaining, problem reduction and boundary mutationCorrect Answer: A. Forward chaining, backward chaining and problem reduction46. Language model used in LISP is ................... .A. Functional programmingB. Logic programmingC. Object oriented programmingD. All of the aboveCorrect Answer: A. Functional programming47. In constraint satisfaction problem, constraints can be stated as .................... .A. Arithmetic equations and inequalities that bind the values of variablesB. Arithmetic equations and inequalities that doesn't bind any restriction over variablesC. Arithmetic equations that impose restrictions over variablesD. Arithmetic equations that discard constraints over the given variablesCorrect Answer: A. Arithmetic equations and inequalities that bind the values of variables48. As compared to rental and leasing methods to acquire computer systems for a Management Information System (MIS), purchase method has following advantage:A. It has high level of flexibilityB. It doesn't require cash up-frontC. It is a business investmentD. Little risk of obsolescenceCorrect Answer: C. It is a business investment49. Solve this question?A. 1B. -p log (p) - (1- p) log (1- р)C. 1 + p log (p) + (1 - p) log (1- p)D. 0Correct Answer: B. -p log (p) - (1- p) log (1- р)50. Which of the following is not a lossy compression technique?A. JPEGB. MPEGC. FFTD. Arithmetic codingCorrect Answer: D. Arithmetic codingSubmit Quiz« Previous12345678910Next »
