B:-It eliminates the need for pointers

C:-It enables the called function to modify the original argument
D:-none of these

Correct Answer:- Option-C

Question43:-Which of the following statements is true regarding the lifetime of
variables with automatic binding in C?

A:-They have a lifetime that extends until the function containing them
completes execution

B:-They have a lifetime that extends until the program terminates
C:-They have a lifetime that extends throughout the program

D:-They have a lifetime that extends until they are explicitly deallocated
Correct Answer:- Option-A

Question44:-In most programming languages, what happens if two variables with
the same name are declared in nested scopes?

A:-An error is raised, and the program fails to compile

B:-The innermost variable shadows the outer variable, and the inner variable is
used within its scope

C:-The outer variable shadows the inner variable, an the outer variable is used
within its scope

D:-Both variables are combined, and their values are merged within their
respective scopes

Correct Answer:- Option-B

Question45:-Which of the following statement is/are correct about ER model?

i. the discriminator of a weak entity is underlined with a dashed line

ii. the discriminator of a weak entity is underlined with a solid line

iii. the relationship set connecting the weak entity set to the identifying strong
entity set is depicted by a dashed diamond.

iv. the relationship set connecting the weak entity set to the identifying strong
entity set is depicted by a double diamond

A:-only i and iii
B:-only i and iv
C:-only ii and iii
D:-only ii and iv
Correct Answer:- Option-B

Question46:-Which are the pitfalls that should avoid during the designing of a
database schema?

A:-Redundancy
B:-Incompleteness
C:-Insufficient indexing
D:-All of the above