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 languages was first conceived by Alain Colmerauer?
[A] Prolog
[B] FORTRAN
[C] Java
[D] COBOL
Show Answer
Correct Answer: A [Prolog]
Notes:
The most characteristic features of the programming language Prolog are its built-in support for unification and backtracking. It was developed by Alain Colmerauer.
22. Which of the following are the two categories of the Low Level Languages?
[A] Machine Level and Assembly Level Language
[B] Algorithms and Assembly Level Language
[C] Assembly and Binary Level Language
[D] Machine Level and Algorithms
Show Answer
Correct Answer: A [Machine Level and Assembly Level Language]
Notes:
In case of Low-level languages, the programmer is able to tune the code to be smaller or more efficient. There are two types of low-level languages. Machine Language which is a language that is directly interpreted into the hardware. Assembly Language is slightly more user-friendly language that directly corresponds to machine language.
23. What is the full form of BLOB?
[A] Binary Long Object
[B] Binary Large Object
[C] Basic Leverage Object
[D] None of the Above
Show Answer
Correct Answer: A [Binary Long Object]
Notes:
BLOB stands for Binary Large Object. In SQL, BLOB can be a general term for any data of type long varbinary, long varchar, or long wvarchar. It is also a specific term for data of type long varbinary.
24. What is the name given to the computing infrastructure close to the sources of data?
[A] Edge Computing
[B] Embedded Computing
[C] Encrypted Computing
[D] None of the Above
Show Answer
Correct Answer: A [Edge Computing]
Notes:
Edge computing refers to the computing infrastructure at the edge of the network, close to the sources of data. Edge computing reduces the communications bandwidth needed between sensors and the datacenter.
25. Which of the following is the most commonly used operation in relational algebra for projecting a collection of records from a relation?
[A] Join
[B] Union
[C] Select
[D] All of the Above
Show Answer
Correct Answer: C [Select]
Notes:
Select is used to view the tuples of the relation with or without some constraints. This operation is used to select rows from a table that specifies a given logic, which is called as a predicate. The predicate is a user defined condition to select rows of user’s choice.
26. System Area Network is used to provide high-speed connection in which of the following environments?
[A] Server-to-server application
[B] Storage Area Network
[C] Processor-to-Processor application
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
System Area Network is used to explain a relatively local network that is designed to provide high-speed connection in server-to-server applications, storage area network and processor-to-processor applications. The computers connected on a SAN operate as a single system at very high speeds.
27. Which one of the following sends data packets to all devices on a network regardless of any MAC addresses?
[A] Host Server
[B] Switch
[C] Hub
[D] Central Server
Show Answer
Correct Answer: C [Hub]
Notes:
A hub is a hardware device that relays communication data. A hub sends data packets to all devices on a network. The hub allow system administrators to monitor data passing through and to configure each port.
28. Which one of the following devices converts digital signal to analog signal and vice versa?
[A] Switch
[B] Router
[C] Modem
[D] Bridge
Show Answer
Correct Answer: C [Modem]
Notes:
Modem is a device that converts digital signal to analog signal as a modulator and analog signal to digital signal as a demodulator. Asynchronous modem uses start and stop bit for synchronization instead of clock.
29. Which of the following device is used to convert the native data into signal?
[A] OCR
[B] Modem
[C] Printer
[D] Monitor
Show Answer
Correct Answer: B [Modem]
Notes:
As data cannot be sent in its native form, it is necessary to convert it into signal. This is performed with the help of a transmitter such as modem.
30. Which of the following noise may occur when signals at different frequencies share the same transmission medium?
[A] White noise
[B] Intermodulation noise
[C] Cross talk
[D] Impulse noise
Show Answer
Correct Answer: B [Intermodulation noise]
Notes:
When signals at different frequencies share the same transmission medium, the result may be intermodulation noise. Signals at a frequency that is the sum or difference of original frequencies or multiples of those frequencies will be produced.
