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. A unit of data storage that equals 2 to the 70th power is called?
[A] Zebibyte
[B] Yottabite
[C] Yobibite
[D] None of the above
Show Answer
Correct Answer: A [Zebibyte]
Notes:
A zebibyte is a unit of data storage. It is equal to 2 to the 70th power, or 1,180,591,620,717,411,303,424 bytes. While a zettabyte can be estimated as 10^21 or 1,000,000,000,000,000,000,000 bytes, a zebibyte is exactly 1,180,591,620,717,411,303,424 bytes.
2. What are the uses of Structured Query Language (SQL)?
[A] Creating Databases
[B] Creating & Modifying Databases
[C] Creating, Modifying & Querying Databases
[D] None of the above
Show Answer
Correct Answer: C [Creating, Modifying & Querying Databases]
Notes:
Structured Query Language (SQL) is a standard computer language designed for managing data held in a Relational Database Management System (RDBMS). It is used not only for creating and modifying databases but also for querying them. In essence, SQL allows you to interact with databases in all the ways that you might need, making it an essential tool for managing complex data structures.
3. The word bandwidth is also used to mean ________?
[A] width of the data cable
[B] amount of data transferred
[C] number of the computers on a particular network
[D] none of the above
Show Answer
Correct Answer: B [amount of data transferred ]
Notes:
Bandwidth refers to the amount of data that can be transmitted in a fixed amount of time. For digital devices, the bandwidth is usually expressed in bits per second(bps) or bytes per second.
4. Which company introduced NetBIOS in 1983?
[A] Dell
[B] IBM
[C] Compaq
[D] SyteK Inc
Show Answer
Correct Answer: D [SyteK Inc]
Notes:
SyteK Inc. developed the NetBIOS protocol in 1983. NetBIOS stands for Network Basic Input/Output System. The protocol was later adopted by IBM for networking in their PC Network. SyteK Inc. was later renamed Hughes LAN Systems Inc. Microsoft integrated NetBIOS into its operating systems for network communication.
5. What is the name of the digital circuit that performs arithmetic and logical operations in computers?
[A] Arithmetic Logic Unit
[B] Digital comparator
[C] Multiplexer
[D] None of these
Show Answer
Correct Answer: A [Arithmetic Logic Unit ]
Notes:
An arithmetic-logic unit (ALU) is the part of the circuit that performs Arithmetic nad logical operations. It is the part of a computer processor (CPU). In some processors, the ALU is divided into two units, an arithmetic unit (AU) and a logic unit (LU).
6. Which among the following are not Objects in Access Database?
[A] Table
[B] Form
[C] Query
[D] Pivot table
Show Answer
Correct Answer: D [Pivot table]
Notes:
Databases in Access are composed of four objects: tables, queries, forms, and reports. Microsoft Access Pivot Table Database allowed to select one row heading, one column heading, and one filter field. It has been removed in Access 2016.
7. Now a days Vishing has become a criminal practice of using social engineering over which of the following?
[A] Social networking sites
[B] Mobile Phones
[C] E-mails
[D] Cyber cafés
Show Answer
Correct Answer: B [Mobile Phones ]
Notes:
Voice phishing or Vishing is a form of criminal phone fraud. It is using social engineering over the telephone system. It is to gain access to private personal and financial information for the purpose of financial reward.
8. Dynamic Adhoc Wireless Networks (DAWN) usually come under ___?
[A] 2G
[B] 3G
[C] 4G
[D] 5G
Show Answer
Correct Answer: D [5G]
Notes:
The DAWN Dynamic Ad-hoc Wireless Networks project is developing a general theory of complex and dynamic wireless communication networks. It comes under 5G.
9. Which among the following is the essential character of the ADSL Internet Connections?
[A] High Download Rate , Low upload Rate
[B] High Upload rate, Low download Rate
[C] Use of voice spectrum of the telephone lines
[D] Use of cable television infrastructure.
Show Answer
Correct Answer: A [High Download Rate , Low upload Rate]
Notes:
ADSL – asymmetric digital subscriber line is a type of broadband communications technology used for connecting to the Internet. ADSL allows more data to be sent over existing copper telephone lines. It is characterized by High download rate and low upload rate.
10. Which of the following devices incorporated a mechanical calendar computer?
[A] Astrolabe
[B] Gear-wheels
[C] Abacus
[D] Gear-train
Show Answer
Correct Answer: A [Astrolabe]
Notes:
The astrolabe was invented in the Hellenistic world by Hipparchus. The astrolabe incorporated a mechanical calendar computer.
