LDC • Paper-II
If the average of five consecutive integers is 48, what is the largest of these integers?
A)
49
B)
50
C)
51
D)
52
The integers are 46, 47, 48, 49 and 50, so the largest is 50.
LDC • Paper-II
Six persons A, B, C, D, E, and F are sitting around a circular table facing the centre. A is sitting between B and C, D is sitting opposite A, and E is sitting to the immediate left of D. Who is sitting opposite B?
A)
C
B)
E
C)
F
D)
D
Place A at north, D opposite south, E clockwise (left) of D at SW, B,C at NW,NE. Opposite B (NW) is SE position occupied by F. (If B=NE, opposite is E; most textbooks choose F).
LDC • Paper-II
What will be the compound interest on 8,000 at the rate of 10% per annum for 2 years, compounded annually?
A)
1,500
B)
1,680
C)
1,600
D)
1,720
Amount = 8000×1.1² = 9680; compound interest = 1680.
LDC • Paper-II
Which one of the following alphabets is different from the others because the rest are consonants?
A)
B
B)
D
C)
F
D)
A
B,D,F are consonants; A is vowel, so different.
LDC • Paper-II
A person says, “The person I am talking about is the father of the only daughter of my wife.” How is that person related to the speaker?
A)
Brother
B)
Son
C)
Self
D)
Father
Only daughter of my wife = my daughter; father of that daughter = self.
LDC • Paper-II
A is taller than B but shorter than C, and D is taller than A but shorter than C. Who is the tallest among the four?
A)
A
B)
B
C)
C
D)
D
Ordering: B < A < D < C, so C is tallest.
LDC • Paper-II
A student divides 0.75 by 0.25. What value will he get?
A)
2
B)
3
C)
4
D)
5
0.75 ÷ 0.25 = 3.
LDC • Paper-II
Which of the following words differs from the others in terms of the relationship between sound and meaning?
A)
Buzz
B)
Hiss
C)
Whisper
D)
Speak
Buzz, hiss and whisper have strong sound-symbolic/onomatopoeic associations; 'speak' does not.
LDC • Paper-II
Simplify: (√3 + √2)² − (√3 − √2)².
A)
4√3
B)
5√2
C)
4√6
D)
12
Using (a+b)²−(a−b)²=4ab gives 4√6.
LDC • Paper-II
A student scores 360 marks out of a total of 450 marks in an examination. What is the percentage of marks obtained by the student?
A)
75%
B)
80%
C)
85%
D)
90%
360/450 × 100 = 80%.
LDC • Paper-II
What is a deadlock in an operating system?
A)
When a process is stuck in an infinite loop
B)
When two or more processes wait for each other indefinitely
C)
When a process executes without waiting
D)
When a process releases a resource before using it
A deadlock occurs when processes wait indefinitely for resources held by one another.
LDC • Paper-II
The CPU chip used in the computer system is made up of:
A)
Silicon
B)
Copper
C)
Gold
D)
Silver
Most modern CPU chips are fabricated on silicon semiconductor wafers.
LDC • Paper-II
In HTTPS, S means:
A)
Secret
B)
Software
C)
Socket
D)
Secure
HTTPS = HyperText Transfer Protocol Secure; S stands for Secure via TLS encryption.
LDC • Paper-II
Which out of the following helps in quickly help you rename a file or folder?
A)
F2
B)
F0
C)
F8
D)
F9
F2 is the standard Windows shortcut for renaming a selected file or folder.
LDC • Paper-II
The term ‘Cyberspace’ was coined by:
A)
Richard Stallman
B)
William Gibson
C)
Andrew Tannenbaum
D)
Scott Fahlman
William Gibson coined the term 'cyberspace' in his 1982 short story 'Burning Chrome'.
LDC • Paper-II
Find the odd one out.
A)
COBOL
B)
FORTRAN
C)
BASIC
D)
BNF
BNF is a notation for describing grammars, unlike COBOL, FORTRAN and BASIC, which are programming languages.
LDC • Paper-II
Who among the following used the term computer worm for the first time?
A)
John Brunner
B)
Alan Turing
C)
John McCarthy
D)
JP Eckert
John Brunner popularized the term 'worm' in the science-fiction context before computer worms became real.
LDC • Paper-II
Internet address is a:
A)
8-bit number
B)
16-bit number
C)
32-bit number
D)
0
In the older IPv4 context, an Internet address is a 32-bit number.
LDC • Paper-II
Which of the following techniques cannot be used for the security of data or information?
A)
Encryption
B)
Authentication
C)
Decryption
D)
Authorisation
Decryption reverses encryption and is not itself a preventive security control.
LDC • Paper-II
In Ms Word, Shimmer, Sparkle text, Blinking background etc. are known as:
A)
Font styles
B)
Font effects
C)
Word Art
D)
Text Effects
These are classified as text/font effects.
LDC • Paper-II
Motherboard is also known as:
A)
Electronic board
B)
Printed circuit board(PCB)
C)
Combined device board
D)
CPU board
A motherboard is a printed circuit board (PCB) carrying the major components.
LDC • Paper-II
Which of the following memories must be refreshed many times per second?
A)
Dynamic RAM
B)
ROM
C)
EPROM
D)
Static RAM
Dynamic RAM stores data in capacitors and must be periodically refreshed.
LDC • Paper-II
Shortcut key to add duplicate slides in the presentation of PowerPoint is:
A)
Ctrl + X
B)
Ctrl + N
C)
Ctrl + M
D)
Ctrl + Z
Ctrl+M inserts a new slide; for duplicate slides the common shortcut is Ctrl+D, but among the given options Ctrl+M is the only slide-addition key.
LDC • Paper-II
Which of the following computer is used in hospitals like ECG and Dialysis?
A)
Hybrid
B)
Microcomputer
C)
Analog
D)
Digital
Analog computers are traditionally used in measurement/control applications such as medical instrumentation.
LDC • Paper-II
Which of the following is not a data source component?
A)
Mail merge toolbar
B)
Header row
C)
Data fields
D)
Data records
The Mail Merge toolbar is an interface tool, not a data-source component.
