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.
21. Which of the following is a display device in which images are produced when an electron beam strikes a phosphorescent surface?
[A] CRT
[B] LCD
[C] LED
[D] All of the Above
Show Answer
Correct Answer: A [CRT]
Notes:
A cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. Most desktop computer displays make use of CRTs.
22. What is plan 9 form the Bell labs?
[A] It is a distributed operating system.
[B] The first official release was in 2015.
[C] Both a and b
[D] None of the Above
Show Answer
Correct Answer: C [Both a and b]
Notes:
Plan 9 from Bell Labs is a distributed operating system. It originated in the Computing Sciences Research Center (CSRC) at Bell Labs in the mid-1980s.
23. What does the SCCM stands for?
[A] System Center Configuration Manager
[B] Software Center Configuration Manager
[C] Software Configuration Checking Manager
[D] None of the Above
Show Answer
Correct Answer: A [System Center Configuration Manager]
Notes:
SCCM stands for System Center Configuration Manager. SCCM is a software management suite provided by Microsoft that allows users to manage a large number of Windows based computers.
24. Which of the following is one among the time-sharing programming languages?
[A] JOSS
[B] COBOL
[C] HTML
[D] BASIC
Show Answer
Correct Answer: A [JOSS]
Notes:
JOSS stands for JOHNNIAC Open Shop System. It was one of the very first interactive, time-sharing programming languages. JOSS was developed by J. Clifford Shaw.
25. Who among the following is the father of MySQL?
[A] Charles Babbage
[B] Michael Wideneus
[C] Allen Jobs
[D] Madam Kama
Show Answer
Correct Answer: B [Michael Wideneus]
Notes:
Michael Widenius is known as the Father of MySQL. He is the main author of the original version of the open-source MySQL database and a founding member of the MySQL AB company.
26. What is the full form of IEC?
[A] International Electrotechnical Commission
[B] International Electrical Council
[C] Internet Embedded Commission
[D] None of the Above
Show Answer
Correct Answer: A [International Electrotechnical Commission]
Notes:
IEC stands for International Electrotechnical Commission. Along with the ISO, the IEC controls the SQL standards and many others as well.
27. Which of the following is used to represent a Weak entity set?
[A] Line
[B] Diamond
[C] Double Diamond
[D] Double Rectangle
Show Answer
Correct Answer: C [Double Diamond]
Notes:
In a relational database, a weak entity is an entity that cannot be uniquely identified by its attributes alone. It must use a foreign key in conjunction with its attributes to create a primary key.
28. Which one of the following is a discontinued computer network operating system developed by Novell, Inc.?
[A] Netware
[B] Novellware
[C] IPX network
[D] None of the Above
Show Answer
Correct Answer: A [Netware]
Notes:
NetWare is a discontinued computer network operating system developed by Novell, Inc. It uses IPX network protocol.
29. Which of the following represents a sine wave?
[A] Non-periodic analog signal
[B] Periodic analog signal
[C] Periodic digital signal
[D] Non-periodic digital signal
Show Answer
Correct Answer: B [Periodic analog signal]
Notes:
The sine wave is the most fundamental form of a periodic analog signal. A periodic signal completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods.
30. What is the length of each character in ASCII code?
[A] 2-bit
[B] 8-bit
[C] 4-bit
[D] 7-bit
Show Answer
Correct Answer: D [7-bit]
Notes:
ASCII code is used to represent digital data. In ASCII code, each character is represented by a 7-bit code.
