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WorksheetsPied-Pipers
Total questions: 50
Worksheet time: 20mins
Which part of the OS directly interacts with hardware?
Shell
Kernel
Application
Driver
What is the meaning of "booting"?
Shutting down the computer
Starting the operating system
Deleting files
Installing RAM
In Operating Systems, which of the following is/are CPU scheduling algorithms?
Priority
Round Robin
Shortest Job First
All of the mentioned
What is the function of the Scheduler?
Manages files
Runs BIOS
Manages processes
Starts OS
Virtual memory is stored on:
Hard Disk
Cache
RAM
Registers
Which symbol is used to select an ID in CSS?
.
@
$
#
What is the default value of flex-direction?
column
Row
column - reverse
Row - reverse
In Flexbox, which property controls the alignment of items along the cross-axis?
justify-content
flex-direction
align-items
flex-wrap
In CSS, the shorthand margin: 10px 20px 30px 40px; sets margins in what order?
Top, Right, Bottom, Left
Top, Left, Bottom, Right
Right, Top, Left, Bottom
Left, Top, Right, Bottom
let and const have which type of scope?
Global
Block
Functional
Object
Which property is essential for a Primary Key?
Can be NULL
Must be unique
Can repeat
Optional
What is a major goal of normalization?
Reduce redundancy
Reduce storage cost
Increase anomalies
Speed up all queries
Which SQL clause filters records before grouping?
GROUP BY
ORDER BY
WHERE
HAVING
Which key can uniquely identify a record but is not a primary key?
Alternate key
Foreign key
Candidate key
Super key
Which SQL command removes all rows but keeps table structure?
Delete
Drop
Truncate
Remove
HTTP works on which port?
20
21
443
80
IPv4 address length
32 bits
16 bits
128 bits
64 bits
Connectionless protocol
TCP
HTTPS
UDP
SMTP
Which topology uses a central hub?
Star
Ring
Bus
Mesh
Which layer is closest to the user?
Transport
Session
Data link
Application
What is the smallest number to be added to 8956 to make it divisible by 11?
3
5
7
9
A does a job in 10 days, B in 15 days, C in 30 days.
If all three work together, how long will it take?
7 days
6 days
4 days
5 days
What comes next?
4, 9, 19, 39, 79, ?
159
155
145
169
Ravi says, "He is the son of the only daughter of my grandmother."
Who is the person?
Ravi’s cousin
Ravi’s brother
Ravi’s uncle
Ravi’s nephew
In a certain code, CAT = 48 and DOG = 52. If A=1, B=2, … Z=26.
If HEN is coded in the same way, what is its value?
42
54
48
60
Which loop guarantees at least one execution?
for
while
do while
enhanced for
none of the following
Which memory area stores objects created using new?
Heap
Method Area
Stack
Cache
Which of the following is immutable?
Tuple
List
Dictionary
Set
Which pillar of OOPS hides internal details?
Inheritance
Encapsulation
Abstraction
Polymorphism
Can we create constants using enum in C?
yes
no
only in c++
only if using typedef
Choose the word most opposite in meaning to “SCARCE”
Rare
Plentiful
Absent
Costly
One word for: “A person who loves books.”
Bibliophile
Botanist
Philanthropist
Novelist
“The ball is in your court” means
Play tennis
Throw the ball
Wait for someone else
It’s your responsibility to take action
“On cloud nine” means:
Confused
Very happy
Angry
Daydreaming
“Throw one’s hat in the ring” means:
Join a competition or contest
Give up
Celebrate
Toss something away
What is the Output?
2
3
4
5
what is the output?
x = 4, y = 3
x = 5, y = 2
x = 7, y = 3
x = 6, y = 4
What is the output?
20
25
30
15
What is the output?
3
4
5
6
If n = 6, what will be the output?
36
480
720
120
What does PCB stand for?
Page Cache Block
Process Communication Buffer
Program Control Backup
Process Control Block
What does CCTV stand for?
Closed Circuit Television
Central Camera Tele Video
Circuit Communication TV
Camera Control Television
What does SSH stand for?
Secure System Host
Secure Shell
System Service Handler
Server Secure Host
What does API stand for?
Application Program Interface
Advanced Programming Instruction
Automatic Processing Interface
Applied Program Interaction
JSON stands for:
Java Script Oriented Network
Java System Object Network
JavaScript Object Notation
Joint Script Object Node
Which data structure is most suitable for implementing a browser's back/forward navigation?
Hash Table
Linked List
Stack
Queue
Which data structure is best for handling printer jobs in a networked printer?
Stack
Queue
Graph
Tree
What is the time complexity to access an element in an array by index?
O(1)
O(n)
O(log n)
O(n log n)
Which method is used to insert an element in a queue?
pop()
push()
enqueue()
delete()
The function calls itself in
Iteration
Inheritance
Recursion
Encapsulation
