IBPS RRB (Computer Knowledge) 3 — Questions and Answers
Question 1: Which protocol is used to send email from a client to a mail server?
- POP3
- IMAP
- SMTP (Correct answer)
- FTP
Correct answer: SMTP
SMTP (Simple Mail Transfer Protocol) is the standard protocol used for sending email messages from a client to a mail server or between servers.
Question 2: In computing, what does 'booting' refer to?
- Installing antivirus software
- Starting up a computer and loading the OS (Correct answer)
- Connecting to the internet
- Formatting a hard disk
Correct answer: Starting up a computer and loading the OS
Booting is the process of starting a computer and loading the operating system into RAM so the system becomes operational.
Question 3: Which keyboard shortcut is used to permanently delete a file (bypassing the Recycle Bin) in Windows?
- Ctrl + D
- Shift + Delete (Correct answer)
- Alt + Delete
- Ctrl + Shift + D
Correct answer: Shift + Delete
Pressing Shift + Delete in Windows deletes a file immediately without sending it to the Recycle Bin, making it harder to recover.
Question 4: What is the function of the ALU in a CPU?
- Stores program instructions
- Performs arithmetic and logical operations (Correct answer)
- Controls data flow between components
- Manages input/output devices
Correct answer: Performs arithmetic and logical operations
The Arithmetic Logic Unit (ALU) is the part of the CPU that performs all arithmetic calculations and logical comparisons.
Question 5: Which of the following file extensions is associated with an MS Access database?
- .xls
- .docx
- .mdb (Correct answer)
- .ppt
Correct answer: .mdb
MS Access databases are saved with the .mdb (Microsoft Database) extension, or .accdb in newer versions.
Question 6: In networking, what does 'bandwidth' measure?
- The physical length of a network cable
- The number of devices on a network
- The amount of data transmitted per unit of time (Correct answer)
- The security level of a connection
Correct answer: The amount of data transmitted per unit of time
Bandwidth refers to the maximum rate at which data can be transferred over a network connection, typically measured in Mbps or Gbps.
Question 7: Which type of software license allows users to freely use, modify, and distribute the software?
- Proprietary license
- Freeware license
- Open-source license (Correct answer)
- Shareware license
Correct answer: Open-source license
An open-source license grants users the freedom to use, study, modify, and distribute the software and its source code.
IBPS RRB (Computer Knowledge) 3
Which protocol is used to send email from a client to a mail server?