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. What is the name given to the device invented by Dr. Bobeck in 1966 for mass storage of data ?
[A] Punched Paper Tape
[B] Magnetic Bubble Storage
[C] Magnetic Tape
[D] Magnetic Disk
Show Answer
Correct Answer: B [Magnetic Bubble Storage]
Notes:
Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas. Bubble memory is largely the brainchild of a single person, Andrew Bobeck.
22. How many pins are there on a Video Graphics Array connector?
[A] 12
[B] 13
[C] 15
[D] 16
Show Answer
Correct Answer: C [15]
Notes:
A Video Graphics Array or VGA connector is a three-row 15-pin connector.VGA connectors and cables carry analog component of video signals, and VESA Display Data Channel (VESA DDC) data.
23. Which of the following correctly defines a software?
[A] It is a collection of data or computer instructions.
[B] A software program has been first written by Ada Lovelace in the 19th century.
[C] Both a and b
[D] It is the softest part of the computer system.
Show Answer
Correct Answer: C [Both a and b]
Notes:
Computer software is all the information processed by computer systems, programs and data. Computer software includes computer programs, libraries and related non-executable data.
24. Which of the following are the software analysis and design tools?
[A] Data Flow Diagrams
[B] ER Diagrams
[C] HIPO Diagrams
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
Various system design and analysis tools are DFDs (Data Flow Diagrams), Structured Charts, Structured English, Data Dictionary, HIPO (Hierarchical Input Process Output) diagrams, ER (Entity Relationship) Diagrams and Decision tables.
25. Which of the following graphs tell us the correct and appropriate way to determine the deadlock situation occurrence?
[A] Starvation Graph
[B] Resource Allocation Graph
[C] Inversion Graph
[D] All of the Above
Show Answer
Correct Answer: B [Resource Allocation Graph]
Notes:
A resource allocation graph tracks which resource is held by which process and which process is waiting for a resource of a particular type. It is very powerful and simple tool to illustrate how interacting processes can deadlock.
26. An assembler is a program that converts assembly language into machine code. Which of the following is not a type of assembler ?
[A] One pass
[B] Two pass
[C] Load and Go
[D] Three pass
Show Answer
Correct Answer: D [Three pass]
Notes:
An assembler is a program that translates assembly language into machine language. There are many types of assemblers .Some of them are one pass assembler, two pass assemble, laod and go assembler etc.
27. Which of the following are the other terms used for Software Decay?
[A] Code Rot
[B] Bit Rot
[C] Software Erosion
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
Software Decay is also known as software rot, code rot, bit rot, software erosion, software decay or software entropy. It is a slow deterioration of software performance over time.
28. Which among the following are the basic components of a relational database model?
[A] Table
[B] Record
[C] Field
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
In the relational database model, data is stored in relations, more commonly known as tables. Tables, records (sometimes known as tuples), and fields (sometimes known as attributes) are the basic components of a RDBMS.
29. Which language is used to make changes made by the DML statement?
[A] Data Definition Language
[B] Data Control Language
[C] Transaction Control Language
[D] Structured Query Language
Show Answer
Correct Answer: C [Transaction Control Language]
Notes:
Transaction Control Language is used to run the changes made by the DML statement.(TCL) commands are used to manage transactions in the database.
30. Which of the following is the term used to describe the process of forecasting in data?
[A] Data integrity
[B] Data Mining
[C] Data Encryption
[D] PERT Chart
Show Answer
Correct Answer: B [Data Mining]
Notes:
Data mining is the process of discovering patterns in large data sets. It involves methods at the intersection of machine learning, statistics, and database systems.
