WB JECA MCA 2025 Previous Year Questions (PYQs) – Page 1 of 10
A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations
Study Stuff for MCA Examinations
Which of the following types of memory is non-volatile?
1
2
3
4
Solution
EPROM is non-volatile memory; it retains data even after power is off.
Which of the following statements about RAM is correct?
1
2
3
4
Solution
RAM is volatile memory used for temporary storage during program execution.
Which of the following best distinguishes a sequential circuit from a combinational circuit?
1
2
3
4
Solution
Sequential circuits depend on both current inputs and past states (memory), unlike combinational circuits.
A system has a 16-bit data bus and a 20-bit address bus. What is the maximum amount of data (in bytes) the system can directly address in memory?
1
2
3
4
Solution
Address bus = 20 bits → $2^{20}$ addresses → 1 MB memory.
Which of the following is not a type of computer code?
1
2
3
4
Solution
EDIC is not a valid code; others are standard encoding schemes.
What will be output of the following code snippet? { float x = 5; if(x > 10) printf("Greater"); else if(x = 10) printf("Equal"); else printf("Smaller"); return 0; }
#include
int main()
1
2
3
4
Solution
Assignment x=10 makes condition true → prints "Equal".
What will be output of the following code snippet? { int i; for (i=1;i<=5;i++) { if(i == i) continue; printf("%d ", i); } return 0; }
#include
int main()
1
2
3
4
Solution
Condition i==i always true → continue always → nothing printed.
Which of the following statements about arrays in C is correct?
1
2
3
4
Solution
Array name gives base address; indexing starts from 0.
Read the following statements about functions in C and choose the correct option:
(i) A function in C can return only one value directly.
(ii) Function names can be the same as variable names in the same scope.
(iii) A function must always take at least one argument.
(iv) Recursion is allowed in C functions.
1
2
3
4
Solution
(i) true, (ii) false, (iii) false, (iv) true.
WB JECA MCA
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
WB JECA MCA
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Ask Your Question or Put Your Review.
