Computers and IT MCQs
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2024-2025. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
1. One kilobyte has _____?
[A] 1000 bytes
[B] 128 bytes
[C] 1024 bytes
[D] 1036 bytes
Show Answer
Correct Answer: C [1024 bytes]
Notes:
The kilobyte is equal to 1024 bytes (210 B), a common usage. The usage of the metric prefix kilo for binary multiples rose convenient, because 1024 is approximately 1000.
2. What is HTTP 404?
[A] An error message indicating server not found
[B] An error message indicating moved permanently
[C] An error message indicating forbidden
[D] An error message indicating server found
Show Answer
Correct Answer: A [An error message indicating server not found ]
Notes:
The HTTP 404, 404 Not Found, 404, Page Not Found, or Server Not Found error message is Hypertext Transfer Protocol standard response code. In computer network communications it indicates that the browser was able to communicate with a given server but server cant find it.
3. Most of the internet banking sites provide which of the following feature to reduce the risk of keystroke logging for the password entry?
[A] Virtual keyboard
[B] Finger Touching
[C] Touch screen
[D] ShapeWriter
Show Answer
Correct Answer: A [Virtual keyboard ]
Notes:
Keystroke logging, often referred to as keylogging is the action of recording (logging) the keys struck on a keyboard. It is typically a covert thing, so that person using the keyboard is unaware that their actions are being monitored. Data can then be retrieved by the person operating the logging program. Virtual Keyboard reduces the risk of keystroke logging for the password entry.
4. Which among the following was the first operational packet switching network, and the predecessor of the Internet?
[A] TELNET
[B] ARPANET
[C] USENET
[D] ALOHAnet
Show Answer
Correct Answer: B [ARPANET]
Notes:
The Advanced Research Projects Agency Network or ARPANET was the first wide-area packet-switching network with distributed control. It is the predecessor of Internet. It is one of the first networks to implement the TCP/IP protocol suite which became the technical foundation of the Internet.
5. Which among the following is NOT a web browser?
[A] SpaceTime
[B] NeoPlanet
[C] Sputnik
[D] MeeGo
Show Answer
Correct Answer: D [MeeGo]
Notes:
MeeGo is not a web browser. It is a discontinued Linux distribution hosted by the Linux Foundation, using source code from the operating systems Moblin and Maemo.
6. One nibble is equal to_?
[A] 4 Bits
[B] 4 Bytes
[C] 8 Bytes
[D] 8 Kilo Bytes
Show Answer
Correct Answer: A [4 Bits]
Notes:
In computing, a nibble (often nybble or even nyble to simulate the spelling of byte) is a four-bit aggregation, or half an octet. As a nibble contains 4 bits, there are sixteen possible values, so a nibble corresponds to a single hexadecimal digit (thus, it is often referred to as a “hex digit” or “hexit”).
7. Which of the following lies within the CPU?
[A] Primary Memory
[B] Secondary Memory
Secondary Memory
[C] Mouse
[D] Keyboard
Show Answer
Correct Answer: A [Primary Memory]
Notes:
All input data and instructions are stored in the memory which is of two types-primary memory and the secondary memory. Primary memory resides within the CPU while the secondary memory is external to it.
8. What kind of information each of the electrical circuits represents?
[A] Arithmetic
[B] Tertiary
[C] Binary
[D] Quaternary
Show Answer
Correct Answer: C [Binary]
Notes:
Each circuit represents a bit (binary digit) information. When the circuit is on, it represents a “1” and a “0” when it is off in a positive logic representation.
9. With which scientist is the discovery of first practical mechanical calculator associated?
[A] Gottfried Leibniz
[B] Blaise Pascal
[C] George Boole
[D] Charles Babbage
Show Answer
Correct Answer: B [Blaise Pascal]
Notes:
Blaise Pascal had invented the first practical mechanical calculator. It was called the Pascaline and was used to help his father who was a tax-collector to solve his sums.
10. An analog computer uses an analog signal which is usually represented as what?
[A] Sine Wave
[B] Sine Curve
[C] Bell curve
[D] Cos Wave
Show Answer
Correct Answer: A [Sine Wave]
Notes:
An Analog computer uses an analog signal which can also be represented as a sine wave or a continuous wave which contains many time-varying quantities.
