System programming MCQ Quiz Hub

1. An example of intermediate language is ?
SNOBOL
PASCAL
COBOL
UNCOL

2. An assembly language is a
low level programming language
Middle level programming language
High level programming language
Internet based programming language

3. Which of the following are language processors?
Assembler
Compiler
Interpreter
All of the above

4. A grammar for a programming language is a formal description of
Syntax
Semantics
Structure
Code

5. Which of the following is most general phase structured grammar?
Context – Sensitive
Regular
Context – Free
None of the above

6. Context free language can be recognized by
finite state automation
linear bounded automation
push down automata
both b and c

7. Which is not true about syntax and semantic parts of a computer language
syntax is generally checked by the programmer
semantics is the responsibility of the programmer
semantics is checeked mechanically by a computer
both b and c

8. The term environment in programming language semantics is said as
function that maps a name to value held there
function that maps a name to a storage location
the function that maps a storage location to the value held there
none of the above

9. Which of the following grammars are not phase structured
regular
context free grammar
context sensitive
none of these

10. A grammar will be meaningless
if terminal set and non terminal set are not disjoint
if the left handside of a production has no non-terminal
if the left hand side of a production has non terminal
all of the above

11. Any syntactic construct that can be described by a regular expression can also be described by a
context sensitive grammar
non-context free grammar
context free grammar
none of these

12. Context-free grammar (CFG) can be recognized by
finite state automata
2 way linear bounded automata
push down automata
both b and c

13. Indicate which of the following is not true about 4GL?
4GL does not support a high-level of screen interaction
Many database management system packages support 4GLs
A 4GL is a software tool which is written, possibly, in some third generation language
All of the above

14. The field that contains a segment index or an internal index is called
target datum
target offset
segment fiel
fix dat

15. What will be output of the following code? #include int main(){ printf(“%d ”,sizeof(6.5)); printf(“%d ”,sizeof(90000)); printf(“%d”,sizeof(‘A’)); return 0; }
8 4 2
8 4 1
8 4 4
8 4 3

16. What will be output of the following c code? ( according to GCC compiler) #include int main(){ signed x; unsigned y; x = 10 +- 10u + 10u +- 10; y = x; if(x==y) printf(“%d %d”,x,y); else if(x!=y) printf(“%u %u”,x,y); return 0; }
00
65536 -10
0 65536
Compilation error

17. What will be output of the following c code? #include int main(){ const int *p; int a=10; p=&a; printf(“%d”,*p); return 0; }
0
10
Garbage Value
Any Memory address

18. What will be output of the following c code? #include int main(){ int a= sizeof(signed) +sizeof(unsigned); int b=sizeof(const)+sizeof(volatile); printf(“%d”,a+++b); return 0; }
10
9
8
Error

19. Which of the following is integral data type?
void
char
float
double

20. What will be output of the following c code? #include int main(){ volatile int a=11; printf(“%d”,a); return 0; }
11
Garbage
-2
Cannot Predict

21. What will be output of the following c code? #include const enum Alpha{ X, Y=5, Z }p=10; int main(){ enum Alpha a,b; a= X; b= Z; printf(“%d”,a+b-p); return 0; }
-4
-5
10
11

22. A compiler can check
Logical Error
Syntax Error
Both Logical and Syntax Error
Not Logical and Syntax Error

23. In analyzing the compilation of PL/I program ,the term “lexical analysis” is associated with
recognition of basic syntactic constructs through reductions
recognition of basic elements and creation of uniform symbols
creation of more optional matrix
use of macro processor to produce more optimal assembly code

24. 24. In analyzing the compilation of PL/I program,the description creation of more optimal matrix is associated with
assembly and output
code generation
syntax analysis
machine independent optimization

25. Which of the following is not a source error ?
faulty design specification
faulty algorithm
compilers themselves
none of these

26. A main procedural program contains modules. These modules are also called____________.
Packages
Units
Both (a) and (b)
None of the above

27. Programming languages are the tools that allow communicating between__________.
Developer
Computer
Developer and data
Both (a) and (b)

28. The actual text used to write the instructions for a computer program is called a_______________.
Source code
Compiler
Both (a) and (b)
Both (a) and (b)

29. Language which have many types, but the type of every name and expression must be calculated at compile time are
weakly typed languages
loosely typed languages
strongly-type languages
none of these

30. In some programming languages, an identifier is permitted to be a letter followed by any number of letters or digits. If L and D denotes the sets of letters and digits respectively, which of the following expressions define an identifier ?
( L . D )*
( L∪ D ) *
L . ( L . D )*
L ( L ∪ D)*

31. In COMAL language programs, parameters after name of procedure must be put in
brackets
back-slash
insecure data
punctuation marks

32. Programming language COBOL works best if used for
beginners
student applications
commercial applications
household user interface

33. In line "110 DIM num(10)" in BASIC language, 'Line 110' declares
one-dimension array
two-dimension array
Three-dimension array
multi-dimension array

34. Statement "130 num(subs) = 2*subs-1" is an example of
array in BASIC
array in PASCAL
array in COMAL
array in COBOL

35. In high-level language COMAL, area is calculated as
Area: = Width*Length
100 Area = Width*Length
100 Area: = Width*Length
length 100: area*20width

36. Data types are differed on basis of
way of storage
type of operations
both (a) and (b)
type of operators used

37. Function which is used in stepwise refinement of program is classified
procedure
library format
routine format
subroutine format

38. When divisions of decimals are involved in program, these numbers are stored in
real numbers
rational numbers
original numbers
irrational numbers

39. Programming languages such as COMAL and Pascal allow subroutine which is classified as
procedure
library format
routine format
subroutine format

40. Items of data help making its structure is classified as
elements
data structure
string structure
variable structure

41. A special value placed at end of items data list is called
rogue value
vague values
decimal value
numerical value

42. A special quantity named in a program and its value can be changed is called
variables
constant
mantissa
exponent

43. In line "550 INPUT NUM: PRINT 6.9*NUM*NUM+27" of a BASIC program, 'PRINT and INPUT' is
reserved words
reserved variable
reserved constant
reserved exponent

44. Whole numbers from '0' and all negative numbers are classified as
integers
real numbers
prime numbers
composite numbers

45. In high-level language Pascal, area is calculated as
Area: = Width*Length;
length 100: area*20width
100 Area = Width*Length
100 Area = Width*Length

46. In line "100 INPUT NUM" of a BASIC program, NUM is if chosen by programmer is classified as
identifier
exponents
real constants
reserved variable

47. Type of statement written in sequence and are repeated until conditions met is classified as
loop
case
format
condition

48. Size of an array is declared by
software
programmer
program users
declared automatically

49. In repeat-until loop 'UNTIL Option>0 and Option<8 AND INT(Option) = Option' , INT function is classified as
option
function
format option
format function

50. Sequence of instructions that are carried out for a particular task is classified as
routine
function
procedure
subroutine