COMPUTER PROGRAMMING MCQs by General knowledge Solutions
COMPUTER PROGRAMMING MCQs by General knowledge Solutions
(1) When executed this code fragment displays
 |
(A)
a line of
* with the shape of
 |
(B)
a line of *
with the shape of
 |
(C)
line of *
with the shape of
(D)
a line
of * with the shape of
a line
of * with the shape of |
(E)
a triangle of
* with the shape of
(2) Which statement is a CORRECT C statement? (correct
means that no error or warning is generated at the compilation)
(A) char name[3] = “Kathryn”;
(B) 2x = 2.0;
(C) double y[6] =
{1.0,2.0};
(D) char *x = ‘a’;
(E) &x = 10;
(3) Among the following, which one is NOT a valid C
identifier?
(A) concrete
(B) brick
(C) stone
(D) struct
(E) truss
(21-23) Consider the
following program:
#include<stdio.h>
#include<stdlib.h>
int
main(void)
{
FILE *file1, *file2;
char letter;
file1 = fopen(“chapter”, “r”);
file2 = fopen(“book”, “w”);
while(fscanf(file1, “%c”,&letter)!=EOF)
fprintf(book, “%c”,letter);
fclose(file1);
fclose(file2);
return EXIT_SUCCESS;
}
(4) In the above program, chapter is
(A) a variable of type double
(B) a variable of type FILE
(C) the name of a file known to the computer outside the C
program
(D) part of a message printed on the computer screen when
the program is executed
(E) a member of the FILE
struct book
(5) In the above program, EOF is?
(A) a variable of type FILE
(B) the value assigned to the variable letter by fscanf when reaching the end of the file read.
(C) a counter to keep track of the number of characters
read
(D) A constant defined in the header file stdio.h which is used by some input/output functions (e.g. fscanf)
(E) The name of a function that detects viruses when
reading files
(6) What is the result of the execution of the above
program?
(A) Assuming that the text file chapter exists, it is copied into the file book
(B) Assuming that the text file book exists, it is copied into the file chapter
(C) The program cannot execute since there is an error at
the compilation
(D) The variable pointed to by file1 is copied
into the memory location of address file2
(E) The variable pointed to by file2 is copied
into the memory location of address file1
(24)Which of the following is FALSE regarding a recursive
function?
(A) A recursive function can always be rewritten with a
loop
(B) A recursive function always executes faster than its
loop equivalent
(C) A recursive function is a function that calls itself
(D) Recursion can sometimes yield a natural and simple
solution to a problem that would otherwise be very difficult to solve
(E) When executing a recursive function, the computer
transfers data to and from a memory area called the system stack.
(25)
Consider the following truth table for the logical operation NAND
P
|
Q
|
P NAND Q
|
T
|
T
|
F
|
T
|
F
|
T
|
F
|
T
|
T
|
F
|
F
|
T
|
(25)Which of the following C conditional expressions would
NOT reproduce the above truth table?
(A) !(P&&Q)
(B) !P || !Q
(C) !(P&&Q) || !P ||
!Q
(D) !(P&&Q)
&& (!P || !Q)
(E) (P&&Q) && (!P || !Q)
26.
The conditional compilation
a.
It is taken care of by the compiler
b.
It is setting the compiler option conditionally
c.
It is compiling a program based on a condition
d.
none of above
27.
Originally ‘C’ was developed as:
a.
System programming language
b.
General purpose language
c.
Data processing language
d.
None of above
28.
An inverted file
a.
Locates information about data in small files that are maintained apart from
actual data record
b.
A file which stores opposite records
c.
A file which stores information about records of a system
d.
None of above
29.
Which of the following is not a file operation:
a.
Repositioning
b.
Truncating
c.
Appending
d.
None of above
30. Latency time is:
a. Time taken by read/write
head mechanism to position itself over appropriate cylinder
b. Time taken to transfer a
dta from memory
c. Time taken by appropriate
sector to come under read/write head
d. None of above
31. The two types of file
structure existing in VSAM file are
a. Key sequenced structure,
entry sequenced structure
b. Key sequence structure,
exit sequenced structure
c. Entry sequence structure,
exit sequenced structure
d. None of above
32. How many copies of a
class static member are shared between objects of the class?
a. A copy of the static
member is shared by all objects of a class
b. A copy is created only
when at least one object is created from that class
c. A copy of the static
member is created for each instntiation of the class
d. No memory is allocated for
static members of a class
33. Which looping process
checks the test condition at the end of the loop?
a. for
b. while
c. do-while
d. no looping process checks
the test condition at the end
34. The default access level
assigned to members of a class is ___________
a. Private
b. Public
c. Protected
d. Needs to be assigned
35. Which of the following
correctly describes the meaning of‘namespace’ feature in C++?
a. Namespaces refer to the
memory space allocated for names used in a program
b. Namespaces refer to space
between the names in a program
c. Namespaces refer to
packing structure of classes in a program.
d. Namespaces provide
facilities for organizing the names in aprogram to avoid name clashes.
36. Which of the following
correctly describes the meaning of ‘namespace’ feature in C++?
a. Namespaces refer to the
memory space allocated for names used in a program
b. Namespaces refer to space
between teh names in a program
c. Namespaces refer to space
between the names in a program
d. namespaces provide
facilities for organizing the names in a program to avoid name clashes
37. Which of the following
language is not supported by C++?
a. Exception Handling
b. Reflection
c. Operator Overloading
d. Namespaces
38. class derived: public
base1, public base2 { } is an example of
a. Polymorphic inheritance
b. Multilevel inheritance
c. Hierarchical inheritance
d. Multiple inheritance
39. Which of the following
languages is a subset of C++ language?
a. C language
b. Java Language
c. C# language
d. language
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