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 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.
22. ACID is a set of properties of database transactions intended to guarantee validity even in the event of errors, power failures etc.What is the full form of ACID?
[A] Aquired Consistency In Database
[B] Atomicity, Consistency, Isolation, Durability
[C] Atomicity,Control,Isolation,Dependency
[D] Atomicity,Concurrecny,Isolation,Durability
Show Answer
Correct Answer: B [Atomicity, Consistency, Isolation, Durability]
Notes:
Andreas Reuter and Theo Harder coined the acronym ACID for Atomicity, Consistency, Isolation, and Durability. In the context of databases, a sequence of database operations that satisfies the ACID properties is called a transaction.
23. What is the full form of RAID?
[A] Redundant Array of Inexpensive Disks
[B] Replicated Array of Independent Data
[C] Redundant Array of Independent Disks
[D] All of the Above
Show Answer
Correct Answer: C [Redundant Array of Independent Disks]
Notes:
RAID stands for Redundant Array of Independent Disks. It is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
24. 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.
25. What are the other names for a Network Interface Card?
[A] LAN adaptor
[B] Network adaptor
[C] Network Card
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A Network Interface Card is circuit board or a card that allows computers to communicate over a network via cables or wirelessly. Every network adaptor is assigned a unique 48-bit Media Access Control address, which is stored in ROM to identify themselves in a network.
26. Where does the bending of EM waves occurs in the atmosphere?
[A] Troposphere
[B] Mesosphere
[C] Stratosphere
[D] Ionosphere
Show Answer
Correct Answer: D [Ionosphere]
Notes:
The phenomenon of bending of electromagnetic waves occurs in Ionosphere and they are diverted towards the earth. This is helpful in skywave propagation.
27. Which of the following device encodes and decodes the analog signals in a dial-up connection?
[A] Modem
[B] NIC
[C] Router
[D] None of the above
Show Answer
Correct Answer: A [Modem]
Notes:
Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between analog and digital forms.
28. Which of these ports is used by POP3?
[A] 110
[B] 22
[C] 143
[D] 25
Show Answer
Correct Answer: A [110]
Notes:
Post Office Protocol 3 (POP3) is an application-layer protocols used for electronic messaging across the Internet. POP3 transfers e-mail messages over TCP port 110.
29. Which of these network protocol is used to synchronize the time of a server to another server?
[A] IGMP
[B] ARP
[C] NTP
[D] SSH
Show Answer
Correct Answer: C [NTP]
Notes:
The Network Time Protocol is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem.
30. Which of these operating system is used in Apple iPhone 6?
[A] Windows
[B] Symbian
[C] Android
[D] iOS
Show Answer
Correct Answer: D [iOS]
Notes:
iOS is developed by Apple Inc and it presently powers many of the Apple’s mobile devices, including the iPhone, iPad, and iPod Touch.
