Statewise Prepration
Govt. Examwise MCQ
3160+ MCQ Questions in english हिन्दी
Which RAID level offers fault tolerance and improved performance using disk striping with parity?
RAID 5 uses striping and parity for balance of speed and fault tolerance.
Which layer of the OSI model is responsible for encryption and decryption of data?
The Presentation Layer handles data translation, encryption, and compression.
What is the full form of IP in IP address? A) Internal Protocol B) Internet Procedure C) Internet Protocol D)) Internet Protocol ✅ Answer: C) Internet Protocol
Internet Protocol
Which one is the fastest type of memory?
Cache
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Which of the following is NOT an operating system?
Python is a programming language.
What is the function of an operating system?
Interface between hardware and user
What is a virus in computer terminology?
It replicates and harms files/data.
Which of the following is an example of system software?
System software manages computer hardware.
What does CPU stand for?
It is the brain of the computer that processes instructions.
The sum of the digits of a two-digit number is 11. If the digits are reversed, the number increases by 27. What is the original number?
Let the tens digit = x, units digit = y So the number = 10x + y
A cylinder and a cone have the same base radius and height. If the volume of the cylinder is 150 cm³, what is the volume of the cone?
Volume of a cylinder = πr²h Volume of a cone = (1/3)πr²h = (1/3) × Volume of the cylinder ⇒ (1/3) × 150 = 75 cm³
If length of arc = 5π & radius = 10, central angle =
(arc = rθ → θ rad = 5π/10 = π/2 rad = 90°)
If u: twice differentiation of x³ gives
Equation of perpendicular bisector of AB joining (2,3) and (6,7):
x + y = 9
The radius of circumscribed circle about square of side 10 =
5√2
If a + b + c = 0, then a³ + b³ + c³ =
3abc
. Radius of circle inscribed in right triangle (6, 8, 10) is:
r = (a + b – c)/2 = (6+8–10)/2 = 2.
What is the area of triangle with sides (13, 14, 15)?
s = 21; area = √[21·8·7·6] = 84.
Sum of cubes of first n natural numbers equals 2025. n is:
n(n+1)/2) 2 =2025 → n(n+1)/2 = 45 → n(n+1) = 90 → n = 9.
A man spends 3/5 of his salary. If he saves ₹8000, what is his salary?
Saving = 2/5 of salary ⇒ 2/5x = 8000 ⇒ x = 8000×5/2 = ₹20,000
Find the value of x: 2x + 5 = 17
Explanation: 2x = 12 ⇒ x = 6
If the area of an equilateral triangle is 49√3 cm², find its side.
Explanatio n: Area= (√3/4)×a² ⇒ 49√3 = (√3/4)×a² ⇒ a² = 196 ⇒ a = 14 cm
If A:B = 2:3 and B:C = 4:5, what is A:C?
A:B = 2:3, B:C = 4:5 ⇒ LCM of B = 12 ⇒ A:C = 8:15
A cone has a height of 12 cm and radius 5 cm. What is its volume? (π = 3.14)
Explanation: V = (1/3)πr²h = (1/3)×3.14×25×12 = 314
In how many ways can the letters of the word "TALATHI" be arranged?
xplanation: Total letters = 7, but 'T' appears twice ⇒ 7!/2! = 5040/2 = 2520
Find the median of 4, 7, 9, 15, 21
Explanation: Middle number = 9
What is the angle between the hands of a clock at 3:30?
Angle = |(30×hr − (11/2)×min)| = |(30×3 − 11/2×30)| = |90 − 165| = 75°
The volume of a cube is 512 cm³. What is its side length?
Explanation: Cube root of 512 = 8
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