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WorksheetsTalent Box Quiz
Total questions: 20
Worksheet time: 10mins
Which data structure follows LIFO?
Queue
Stack
Array
Tree
What is the time complexity of linear search?
O(log n)
O(n)
O(1)
O(n²)
Which SQL command is used to retrieve data?
Insert
Update
Select
Delete
Which keyword is used to create an object in Java?
class
create
new
object
What is the full form of DBMS?
Data Backup Management System
Database Management System
Data Base Modeling System
Data Binary Management System
Which of the following is a primary key property?
Can have duplicate values
Can be NULL
Uniquely identifies a record
Can store text only
Which operator is used for comparison in programming?
=
==
+
*
Which loop executes at least once?
for
while
do-while
foreach
Which of the following is NOT an OOP concept?
Encapsulation
Polymorphism
Inheritance
Compilation
Which HTTP method is used to get data?
POST
PUT
GET
DELETE
Which sorting algorithm is easiest to understand?
Merge Sort
Quick Sort
Bubble Sort
Heap Sort
What does OS do?
Write code
Manage hardware and software
Store database
Design UI
Which collection allows duplicate elements in Java?
Set
Map
List
HashSet
Which SQL constraint ensures no duplicate values?
NOT NULL
UNIQUE
DEFAULT
CHECK
What is the default port number of HTTP?
21
80
654
765
Which of the following is a front-end language?
Java
Python
Html
MySql
What is a constructor used for?
Destroy object
Initialize object
Run loop
Compile code
Which symbol is used to end a statement in Java?
:
.
;
,
Which SQL command removes a table completely?
DELETE
REMOVE
DROP
TRUNCATE
Which keyword is used to inherit a class in Java?
implements
extends
super
this
