Programming Quiz Channel
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Programming quizzes and knowledge tests

Short quizzes on programming, logic and computer science.

Test and improve your coding knowledge.
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3 rounding methods in JavaScript
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Which CSS property controls the text size?
Anonymous Quiz
77%
font-size
9%
text-style
5%
font-style
9%
text-size
What will this code output? Spot the bug.
Difficulty: Hard๐Ÿ˜ค

for (var i = 0; i < 5; i++) {
setTimeout(function() {
console.log(i);
}, 1000);
}
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Channel name was changed to ยซProgramming Quiz Channelยป
Channel photo updated
What is the time complexity of binary search on a sorted array?
Anonymous Quiz
23%
O(n)
41%
O(log n)
20%
O(1)
17%
O(n log n)
โค2
Which SQL keyword removes duplicate rows?
Anonymous Quiz
28%
UNIQUE
4%
CLEAN
52%
DISTINCT
16%
REMOVE
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In Python, what is the result of len("abc" * 3)?
Anonymous Quiz
22%
3
11%
6
60%
9
7%
12
Which OS algorithm may cause starvation?
Anonymous Quiz
15%
FCFS
35%
Round Robin
23%
FIFO
27%
Priority scheduling
Which HTTP status implies retry later?
Anonymous Quiz
9%
200
30%
429
27%
301
34%
404
โค2
In Java, what is the default value for uninitialized int variable inside a class?
Anonymous Quiz
36%
0
36%
null
28%
undefined
0%
1
Which data structure uses LIFO behavior ?
Anonymous Quiz
21%
Queue
9%
Tree
67%
Stack
4%
Graph
Which SQL clause sorts results?
Anonymous Quiz
18%
GROUP BY
6%
ARRANGE
39%
SORT BY
36%
ORDER BY
Starvation in operating system means:
Anonymous Quiz
19%
Deadlock situation
39%
Process never served
30%
Memory leak
13%
Low CPU
Which Automata has a stack memory?
Anonymous Quiz
24%
DFA
32%
NFA
40%
PDA
4%
TM
Which keyword creates an object in Java?
Anonymous Quiz
8%
build
22%
create
61%
new
9%
alloc
Which sorting algorithm has the worst case O(n^2)?
Anonymous Quiz
18%
Merge sort
18%
Quick sort
51%
Bubble sort
13%
Heap sort
Which HTTP status code means "Not Found" ?
Anonymous Quiz
3%
200
3%
301
91%
404
4%
500
Which operator accesses members through a pointer in C++?
Anonymous Quiz
8%
.
32%
::
51%
->
8%
: