C MCQ's

C- Objectives Object ives ( Unit -1)SET-1 -1)SET-1 1. Which of the following is not a valid variable name declaration? a) int _a3; b) int a_3 a_3;; d) int _3a c) int 3_a; 2. All keywords in  are in a) LowerCase letters b) !""erase letters

c) CamelCase letters

3. Which of the following is not a valid  variable name? a) int n#mber; b) float rate; c) int variable_count;

d) None

d) int $main;

$. %he format identifier format identifier &'i( is also #sed for _____ data ty"e? a) char c) float d) double b) int . What is the si*e of an int data ty"e? a) $ +ytes b) , +ytes c) Depends on the system/compiler  -. Which of the following is not a valid variable name declaration? a) float / 0 3.1$; b) do#ble / 0 3.1$ ; c) int PI = 3.!;

d) annot be determined

d) define / 3.1$

. Which is correct with res"ect to si*e of the dataty"es? a) char  int  float b) int  char  float c) char " int " do#ble

d) do#ble  char  int

,. Which keyword is #sed to "revent any changes in the variable within a  "rogram? a) imm#table b) m#table d) volatile c) const 4. A variable declared in a function can be used in main d) None of the mentioned a) %r#e b) alse c) %r#e if it is declared static 15. Which esca"e character can character  can be #sed to bee" from s"eaker in ?

B) \b C) \m 11. Explicit tpe conversion is !no"n as .................... .................... B) conversion C) dis#unction A) casting %) &a

D) \n D) separation

12. If a is an integer variable, a=7/3; will return a value A) 2.5 B) 3 C) 0 D) 2 13. ierar!"#$%&erat'r (re!een!e) e!ies w"i!" '&erat'r

$) is *'st i*&'rtant B) is used first C) is fastest +) %&erates 'n largest nu*bers 1. -"i!" 'f t"e f'll'wing is t"e !'rre!t 'rer 'f evaluati'n f'r t"e bel'w e&ressi'n =#/241 A. * / % + - =

B. =  /   4

C. /   4  =

+.   / 4  =

15. In w"i!" 'rer ' t"e f'll'wing gets evaluate 1.elati'nal 1.elati'nal A. 2134

2.Arit"*eti! 2.Arit"*eti! B.123

3.6'gi!al

C.321

. Assign*ent Assign*ent +.321

C- Objectives (SET-2) 1. %hich of the follo"in& cannot be chec!ed in a s"itch'case statement( $. Character

C.

B.nte&er

Float  

D.

enum

2. Ientif# t"e un!'niti'nal stru!ture  1)'4w"ile 2)8wit!" 3)/dentify the wrong statement 6 1) if7ab);

') i( a  b ;

3)goto  c) if 7ab) 8 ;9

)If  d)none

$)%he minim#m n#mber of times d5:while loo" eec#ted is 6 1)5

') 

3)2

$) can not be "redicted

) What is the val#e of  in the e"ression  0 7a015 < a=a) 1)invalid

2) 5

!)**

3)15

-)%he &>( o"erator dis"lays 6

a)%ddress o( +ariable

b)val#e of variable c)a and b both

d)none

)what f#nction is a""ro"riate for acce"ting a string

a),ets-)

b)getch7)

c)getche7)

d)scanf7)

,)Which is the correct statement for finding c#be of 2.

a)pow-'3)

b)"ow73<2)

c)"ow7c)

d)none

4)/n switch < character constants are a#tomatically converted to::::::::

b)inte,ers 

a)floats

c)do#ble

15) A single character in"#t from the keyboard can be obtained by #sing the f#nction. 7A) "rintf 7 )

7+) scanf 7 )

7) "#tchar 7 )

-D) ,etchar - )

11)%he variable that are declared o#tside all the f#nctions are called ______. 7A) ocal variable

-) 0lobal +ariable

7) A#to variable

7@) one of the above

12)Which can not be #sed for m#lti"le conditions 6

a)1imple2i( 

b)switch

c) Blse if ladder

13)Cow many times loo" will be r#n 6 for7i015; ; i: :) a)15

b)1

c)4

d)In(inite

1$)Which is an eit:controlled loo" 6 a)for

b)while

c)do

d)none

1)%he contin#e command can not be #sed with 6 a)Dor

b) switch

c)@o

d)While

d)nested:if 

C- Objectives (SET-3) 1)"hat is the default return tpe of a function ( b)int

a)void

c)*oat

d)char

+),he pro&ram execution starts from a)function dened rst b)main()

c)function dened last d)none

/)c lan&ua&e allo"s ar&uments to be passed 0 a)call b val

c)both  

b)call b ref

c)none

)%hen main function is called 2 it is called "ith the ar&uments 0 a)ar&c

b)ar&v

)both

c)none

3)4eader le in c contains a)compiler commands b)!ib"a"# $%nctions d)none

c)4eader information

5)6unction "ithin another function is !no"n as -' b)neste $%nction

a)arra of function

c)function prototpe

7)"hich tells compiler  abo#t n#mber of "arameters f#nction takes< data:ty"es of "arameters and ret#rn ty"e of f#nction 6

a)(#nction prototype

b)calling f#nction

c)called f#nction

,)A f#nction which is called by another f#nction is known as 6 a)nested f#nction

b)calling f#nction

c)called (#nction

4)A f#nction which calls another f#nction is known as 6 a)nested f#nction

 b)callin, (#nction

c)called f#nction

15)A f#nction which calls itself is known as 6 a)nested f#nction

b)calling f#nction

c)called f#nction

d)rec#rsi+e (#nction

11)A "rocess in which a f#nction calls itself is known as 6 a)E#ltif#nction

b)rec#rsion

c)indirection

12)An array which has more than one s#bscri"t is known as 6 a)matri

b)m#ltidimensional array c)character array

d)"rototy"ing

13) A two dimensional array is also known as 6

b)matri  

a)Fector

c)string

1$)A matri which has more *ero elements is known as 6 a) #nit matri

c)sparse matri

b)*ero matri

1)Eembers of an array are accessed #sing GGGG.. a)val#es

b)variable

c) inde

1-) /nde of array starts from GG..

a) 4ero

b)one

c) :1

1) /f aH4I is an array of integers < how many val#es can it store ?

b) *

a) 4

c)11

d),

1,)/f tableHIHI is an array < how many val#es can be stored by this array ? a)12

b)

d)35

c)

14)if marksH$IH-I is an array < how many rows will it have ?

a) !

b)-

c)2$

d)15

C- Objectives (SET-&) J.1)Arrays are #sed to store elements of 6:

a)1ame type

b) m#lti"le ty"e

c)different ty"e

d)none

J.2) Which of the following is a derived data ty"e 6: a) ointer

b)D#nction

c)Array

d)%ll

J.3)%he si*eof o"erator ret#rns the si*e of a data ty"e e"ressed in 6 a)bits

b)nibbles

c)words

d)bytes

K.$)Which of the following is not an #nformatted console /LM f#nction 6 a)gets7)

b)"#ts7)

c)print(-)

d)getch7)

K.) Which class is #sed to declare a variable as global in other "rogram 6 a)a#to

b)register

c)static

d)etern

K.-) /n which storage class < the variable is not stored in main memory 6 a) a)a#to

b)re,ister  

c)static

d)etern

K.) which o"erator is #sed for m#lti"le indirection 6 a) >

b)66

c).

d)

K.,)A variable which stores address of another variable is known as 6

a)pointer 

b)static

c)address of

d)f#nction

K.4)Which o"erator is #sed for referencing 6:

a) '

b)8

c).

d)9

K.15)Which o"erator is #sed for dereferencing 6:

a) :

b)

c).

d)9

K.11)Which o"erator is known as address:of o"erator 6:

a) '

b)8

c).

d)9

K.12)Which o"erator is known as val#e:at :address o"erator 6:

a) :

b)

c).

d)9

K.13) Address of first member of array is known as 6

b)base address

a) first address

c)array address

K.1$) an a "ointer "oints to itself ?

a) yes

b)o

K.1) A "ointer which "oints to another "ointer is known as 6

b)pointer2to2pointer 

a)m#lti"ointer 

c)void "ointer 

K.1-)which o"eration can not be "erformed between two "ointers ;

b)addition  

a) s#btraction

c)com"arison

K.1) A "ointer that can "oint at obNects of any data ty"e? a)#ll "ointer 

b)+oid pointer 

c)data "ointer 

K.1,) A "ointer that "oints to nothingG.

a)7#ll pointer 

b)void "ointer

c)data "ointer  

K.14)Arg#ments given to main f#nction from command "rom"t are known as 6 a) s"ecial arg#ments

b)command line ar,#ments

C- Objectives (SET-)

1)

%hich is a formatted le function ( a) f&ets) b)fputs) c)$scan$()

+)

d)f&etc)

"hich function is not used for text le ( a) $*"ite()

b)f&ets)

c)fscanf) d)fprintf)

3)which f#nction does set the c#rsor to the starting of a file ?

b)rewind-)

a)ftell7)

c)fseek7)

$) data can be accessed directly from which file ?

b)random

a) seK#ential

) A collection of variable of different data ty"es is known as 6 a)array

b)str#ct#re   c)"ointer

-) A f#nction which is #sed to create a tet file is GG..

a)(print(-)

b)fscanf7)

8) or accessin, a str#ct#re element #sin, a pointeryo# m#st #se9 HaI@ot o"erators7.)

:c%rrow operator-2)

HbIointer o"erator7=)

,) Cow will yo# free the allocated memory ?  A.remove7var:name); .delete7var:name);

.(ree-+ar2name); @.dalloc7var:name);

4)/n which data ty"e memory is shared by all members 6

a)
b)str#ct#re

15)/f the val#e is not assigned to variable < which will give a garbage val#e ? a) static

b)a#to

c)etern

11)which variable is also known as local variable ?

a) a#to

b)etern

12)which variable is also known as local variable ? a) a#to

b)etern