C032Branching and Looping • Loops
Most ImportantMedium
Q1.Which loop is guaranteed to execute its body AT LEAST ONCE?
A
for
B
while
C
do-while
Correct answer
D
if
Answer Green MarksON
Correct answers are highlighted in green
C034Branching and Looping • Loops
Most ImportantEasy
Q2.How many times does this loop run? for(i = 1; i <= 5; i++)
A
4 times
B
5 times
Correct answer
C
6 times
D
infinite
C035Branching and Looping • continue
Most ImportantMedium
Q3.Which statement skips the current iteration and moves to the next one in a loop?
A
break
B
continue
Correct answer
C
skip
D
return
C036Branching and Looping • break
Most ImportantEasy
Q4.The break statement inside a loop:
A
skips one iteration
B
terminates the loop immediately
Correct answer
C
restarts the loop
D
does nothing
C037Branching and Looping • while loop
Most ImportantMedium
Q5.What is the output? int i = 0; while(i < 3){ printf("%d", i); i++; }
A
012
Correct answer
B
123
C
0123
D
infinite loop
C038Branching and Looping • if-else
Most ImportantEasy
Q6.In an if-else statement, the else block executes when the condition is:
A
true
B
false
Correct answer
C
always
D
never
C040Branching and Looping • for loop
Most ImportantEasy
Q7.What is the correct syntax of a for loop?
A
for(init; condition; update)
Correct answer
B
for(condition; init; update)
C
for(init, condition, update)
D
for(update; condition; init)
C120Branching and Looping • for loop
Most ImportantEasy
Q8.How many times does this loop run? for(i = 0; i < 10; i++)
A
9
B
10
Correct answer
C
11
D
infinite
C124Branching and Looping • break
Most ImportantEasy
Q9.Which keyword immediately transfers control out of a loop?
A
continue
B
break
Correct answer
C
return
D
exit
C127Branching and Looping • while loop
Most ImportantMedium
Q10.What is the output? int i = 5; while(i > 0){ printf("%d", i); i--; }
A
12345
B
54321
Correct answer
C
5
D
01234
C033Branching and Looping • Loops
ImportantMedium
Q11.Which of the following is an ENTRY-CONTROLLED loop?
A
do-while
B
while
Correct answer
C
goto
D
switch
C039Branching and Looping • if condition
ImportantMedium
Q12.What is printed? if(5) printf("Yes"); else printf("No");
A
Yes
Correct answer
B
No
C
error
D
nothing
C121Branching and Looping • for loop
ImportantMedium
Q13.How many times does this loop run? for(i = 1; i <= 10; i += 2)
A
10
B
4
C
5
Correct answer
D
6
C122Branching and Looping • Empty body
ImportantHard
Q14.What is the output? for(i = 0; i < 3; i++); printf("%d", i);
A
012
B
3
Correct answer
C
0
D
2
C123Branching and Looping • do-while
ImportantMedium
Q15.How many times does the body of do { ... } while(0); execute?
A
0 times
B
1 time
Correct answer
C
infinite
D
depends
C125Branching and Looping • Nested loops
ImportantMedium
Q16.An outer loop runs 3 times and its inner loop runs 4 times each. How many times does the inner body run in total?
A
7
B
12
Correct answer
C
3
D
4
C126Branching and Looping • while loop
ImportantEasy
Q17.How many times does the body of while(0) { ... } execute?
A
0 times
Correct answer
B
1 time
C
infinite
D
10 times
C128Branching and Looping • do-while
ImportantMedium
Q18.What is the output? int i = 1; do{ printf("%d", i); i++; } while(i <= 3);
A
12
B
123
Correct answer
C
1234
D
1
C041Branching and Looping • Infinite loop
OtherMedium
Q19.The loop for( ; ; ) will:
A
give a syntax error
B
run exactly once
C
run as an infinite loop
Correct answer
D
never run
C129Branching and Looping • if-else
OtherMedium
Q20.In a nested if-else without braces, an else matches with the:
A
first if
B
nearest unmatched if
Correct answer
C
last statement
D
outer block