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. A parser generator takes a grammar as input and automatically generates source code that can parse streams of characters using the grammar. Which of the following software tools is a parse generator?
[A] Lex
[B] Yacc
[C] Both a and b
[D] None of the Above
Show Answer
Correct Answer: B [Yacc]
Notes:
Yacc stands for “yet another compiler compiler. It is the standard parser generator for the Unix operating system. Yacc generates code for the parser in the C programming language.
22. 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.
23. Garnet Operating System was developed to be used in which of the following devices?
[A] Laptops
[B] PDAs
[C] Smartphones
[D] Both b and c
Show Answer
Correct Answer: D [Both b and c]
Notes:
Garnet OS is also known as Palm OS. It is a discontinued mobile operating system initially developed for personal digital assistants (PDAs) in 1996. Later versions of the OS have been extended to support smartphones.
24. Which of the following is used as an application programming interface with RDBMS?
[A] VB
[B] COBOL
[C] SQL
[D] All of the Above
Show Answer
Correct Answer: C [SQL]
Notes:
With relational DBMSs known as RDBMSs, the Application programming interface is SQL.SQL a standard programming language for defining, protecting and accessing data in a RDBMS.
25. There are many types of database models .Which among the following are those types ?
[A] Network Database Model
[B] Relational Database Model
[C] Object Oriented Database Model
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized and manipulated.Types of database models are Hierarchical database model,Relational model,Network model,Object oriented database model,Entity-relationship model,Document model,Entity-attribute-value model,Star schema etc.
26. What is the name given to the special type of stored procedure that automatically executes when an event occurs in the database server?
[A] Deadlock
[B] Trigger
[C] Instance
[D] Rollback
Show Answer
Correct Answer: B [Trigger]
Notes:
A database trigger is procedural code that is automatically executed in response to certain events on a particular table or view in a database. The trigger is mostly used for maintaining the integrity of the information on the database.
27. Which of the following networking devices is used for delivery of messages between VPN nodes?
[A] Router
[B] VPN connector
[C] Switch
[D] Hub
Show Answer
Correct Answer: B [VPN connector]
Notes:
A VPN concentrator is a type of networking device that provides secure creation of VPN connections and delivery of messages between VPN nodes.
28. What is the name given to the device that converts between two different types of transmission for interoperation?
[A] Bridge Router
[B] Protocol Convertor
[C] Multilayer Switch
[D] Hub Jointer
Show Answer
Correct Answer: B [Protocol Convertor]
Notes:
A Protocol Converter is a device used to convert standard or proprietary protocol of one device to the protocol suitable for the other device or tools to achieve the interoperability.
29. Which of the following cables work on the properties of light?
[A] Coaxial cables
[B] Twisted pair
[C] Fiber optics
[D] None
Show Answer
Correct Answer: C [Fiber optics]
Notes:
Fiber Optic works on the properties of light. When light ray hits at critical angle it tends to refracts at 90 degree. This property is the basis of fiber optics.
30. What is meant by the terms ‘connect time’?
[A] Speed of data transfer in a connection
[B] Amount of time it took for user to make a connection to a remote computer
[C] Amount of time user is logged in to a remote computer
[D] None of the above
Show Answer
Correct Answer: C [Amount of time user is logged in to a remote computer]
Notes:
The amount of time a user is logged in to a remote computer is called as connect time. This becomes important in as many online services charge users per connect time.
