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The prefix form of an infix expression A+B-C*D is

(A) +AB-*CD
(B) -+A B C * D
(C) -+A B * C D
(D) – + *ABCD

The answer is (C) -+A B * C D 

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

Java achieves polymorphism through:

A. Overrdiding
B. overloading
C. Interfaces
D. Pointers

The answer is  C. Interfaces

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

Which of the following features from procedural language is not supported in java

A) Object-oriented
B) Use of pointers
C) Portable
D) Dynamic and Extensible

The answer is B) Use of pointers

Posted on October 21, 2023 by AZMCQS in SPSC Lecturer Computer Science BPS-17 Past Paper 2021, Computer Science | Leave a comment

Which of the following is a properly defined structure?

(a) struct {int a;}
(b) struct a_struct {int a;}
(c) struct a_struct int a;
(d) struct a_struct {int a;}

The answer is (d) struct a_struct {int a;}

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

Which of the followings is/are pointer-to-member declarator?

A. ->*
B. .*
C. ::*
D. both A and B

The answer  is C. ::*

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

How many bytes are reserved in main memory for “void”?

A. 0
B. 1
C. 2
D. 4

The answer is  A.0

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

The first Web Browser is

A. Firefox
B. Netscape
C. World Wide Web
D. Internet Explorer

The answer is C. World Wide Web

Posted on October 21, 2023 by AZMCQS in Computer Science | Leave a comment

Virtual reality provides

A. Sharp pictures
B. Individual audio
C. Preview of new films
D. Participatory experience

The answer is D. Participatory experience

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment

The initial efforts for internet based communication was for

A. Military purposes
B. Political campaigns
C. Personal interaction
D. Commercial communication

The answer is A. Military purposes

 

Posted on October 21, 2023 by AZMCQS in SPSC Lecturer Computer Science BPS-17 Past Paper 2021, Computer Science | Leave a comment

A computer has a main memory of 960 Kbytes. What is the exact number of bytes contained in this memory ?

A- 960*8
B- 960*1000
C- 960*1024
D- None

The answer is C- 960*1024

The exact number of bytes contained in the main memory is 960 × 1024.

Posted on October 21, 2023 by AZMCQS in Computer Science, SPSC Lecturer Computer Science BPS-17 Past Paper 2021 | Leave a comment
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