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Frequently Asked TCS Programming - Variables Interview Questions with Answers

(#M40165199) TCS QUESTION Technical MCQ Keep an EYE

Predict the output of following code:
main()
{
int a=2;
switch(a)
{
case 1: printf(“one”);
case 2: printf(“Two”);
// Executable code ; No break statement
case 3: printf(“Three”);
default:printf(“Invalid option”);
}
}

1. onetwothree
2. Invalid option
3. one two
4. None of these

Asked In TCS Ashish (5 years ago)

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(#M40165167) TCS QUESTION Technical MCQ Keep an EYE

Comment on the below while statement=while (0 == 0) { }
A) It has syntax error as there are no statements within braces {}
B) It will run forever
C) It compares 0 with 0 and since they are equal it will exit the loop immediately
D) It has syntax error as the same number is being compared with itself

Asked In TCS Ashish (5 years ago)

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(#M40167060) TCS QUESTION Keep an EYE

Why reference is not same as a pointer?
A)Reference does not need an explicit dereferencing mechanism B)A reference can never be null C) A reference once established cannot be changed D)All of the above

Asked In TCS Devendra Marghade (2 years ago)

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(#M40165223) TCS QUESTION Technical MCQ Keep an EYE

How many of the following are invalid
variable name?
NUMBER
first.name
midname. _num ​ 93num
num93
last name ​ nUMBER
4321
1. 5
2. 3
3. 2
4. More than 5

Asked In TCS Ashish (5 years ago)

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(#M40165188) TCS QUESTION Technical MCQ Keep an EYE

Predict the output of following code:
main()
{
int a,x=2,3,4,5; // Error because list is not within ( )
a=1,2,3,4,5;
printf(“%d%d”,x,a);
}
1. Error
2. 5,1
3. 2,1
4. 5,5

Asked In TCS Ashish (5 years ago)

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(#M40165161) TCS QUESTION Technical MCQ Keep an EYE

All keywords in C are in
1. Uppercase letters
2. None of these
3. Lowercase letters
4. Camel Case letters

Asked In TCS Ashish (5 years ago)

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(#M40165230) TCS QUESTION Technical MCQ Keep an EYE

Write a program to swap two numbers without using a temporary
variable.

Asked In TCS Ashish (5 years ago)

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(#M40165165) TCS QUESTION Technical MCQ Keep an EYE

Which of the above are correct statements?
1. 2,3
2. 1,2
3. 1,2,3
4. 1,2,3,4

Asked In TCS Ashish (5 years ago)

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(#M40164911) TCS QUESTION C programming Keep an EYE

1.Write a c program to convert binary to decimal
using command line arguments?
2.Write a c program to check whether given no. is palindrome or not?
3. C program to find sum of N prime nos.?

Asked In TCS Cs patel (5 years ago)

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(#M40010710) TCS QUESTION Keep an EYE

There are 20 balls which are red, blue or green. if 7 balls are green and the sum of red balls and green balls is less than 13, at most how many red balls are there?
a)4
b)5
c)6
d)7

Asked In TCS krishnaprasad TATA (10 years ago)

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