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Jharkhand Academic Council      -  Year 2017 Computer Science        -  Class XII                                   ========================= Multiple Choice Questions: a.  While loop checks the condition on …………… I.  Top II.  Bottom III.  Middle IV.  None of these Ans: I b.  A keyword is – I.  An identifier II.  In lower case alphabets III.  Reserved for instructions only IV.  None of these Ans: III c.  If a class X inherits from class Y, then Y is called ….. of X I.  Super Class II.  Sub class III.  Abstract class IV.  None of these Ans: I d.  A set of Relational Operators are I.  +, -, *, /, % II.  >, <, >=, <=, ==, != III.  &&, ||, ! IV.  ? : Ans: II e.  An inline function is – I.  Prefixed with keyword inline II.  Declared and defined inside the class III.  Prefixed with inline on the header and defined outside the class IV.  All of these Ans: IV f.  Constructor is- I.  Are special function II.  Have the same name as that of the class III.  Have no return type IV.  All of these Ans: IV g.  In protected inheritance, a public data member of the base class will be treated in a derived class as – I.  Public II.  Private III.  Protected IV.  None of these Ans: III h.  In a queue, insertion is done at I.  Rear II.  Front III.  I and II both IV.  None of these Ans: I i.  FIFO means- I.  First In First Out II.  Fast In First Out III.  Fast In Fast Out IV.  None of these Ans: I j.  Arranging elements of an array in specific order is called I.  Array II.  Record III.  Pointers IV.  None of these Ans IV (called Sorting) k.  Number of tuples in a relation is called I.  Degree II.  Cardinality III.  Attributes IV.  None of these Ans: II l.  The duplication of data is known as I.  Data redundancy II.  Data inconsistency III.  Data security IV.  None of these Ans: I m.  How many gates would be required to implement the following Boolean expression after simplification? XY+X(X+Z)+Y(X+Z) I.  1 II.  2 III.  4 IV.  5 Ans:  II n.  The solution of X.(X+Y) is equal to I.  X II.  X’ III.  X+Y IV.  None of these Ans: I o.  Which of the following layers is not in OSI model? I.  Physical Layer II.  Internet Layer III.  Network Layer IV.  Transport Layer Ans: II p.  Web browser is I.  Google chrome II.  Firefox III.  Internet Explorer IV.  All of these Ans: IV

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