Q260. Which activity best describes the CPU’s central function?
[IBPS RRB PO Mains 2025]
- Operating only input ports
- Storing files permanently
- Routing internet packets only
- Fetching, decoding and executing instructions
- Organizing folders only
Answer: D. Fetching, decoding and executing instructions
Explanation: The central processor repeatedly fetches instructions, decodes them and executes their operations. This instruction cycle supports calculations and program execution and is distinct from long-term file storage or purely peripheral functions.
Q259. Which simple networking device centrally interconnects computers on an Ethernet segment?
[IBPS RRB PO Mains 2025]
- Router
- Hub
- Repeater
- Bridge
- Gateway
Answer: B. Hub
Explanation: An Ethernet hub provides a common connection point for computers on a local segment. Incoming signals are repeated to its other ports, unlike a network switch that intelligently forwards frames according to addresses.
Q258. Which output device is generally used to create a paper copy of a document?
[IBPS RRB PO Mains 2025]
- Monitor
- Speaker
- Printer
- Projector
- Webcam
Answer: C. Printer
Explanation: A printer transfers digital text and images to paper, creating a physical hard copy. A monitor or projector supplies a visual electronic display and a speaker produces audio, not paper output.
Q257. Which listed language is a third-generation high-level programming language?
[IBPS RRB PO Mains 2025]
- Assembly
- COBOL
- Machine language
- Binary code
- Microinstructions
Answer: B. COBOL
Explanation: COBOL belongs to the family of high-level languages designed to make business data programs comparatively human-readable. Assembly and machine code operate closer to the processor’s instruction set and are lower-level forms.
Q256. Which multiuser time-sharing operating system originated at Bell Labs?
[IBPS RRB PO Mains 2025]
- MS-DOS
- UNIX
- Windows NT
- macOS
- CP/M
Answer: B. UNIX
Explanation: UNIX was developed at Bell Labs and became an influential multiuser, time-sharing operating system. Its file model, process handling and command-line tools strongly influenced later systems, including BSD and Linux.
Q255. Which protocol provides logical addressing and routing at OSI Layer 3?
[IBPS RRB PO Mains 2025]
- TCP
- IP
- HTTP
- FTP
- SMTP
Answer: B. IP
Explanation: Internet Protocol handles logical addresses and routes packets across networks, matching the network layer in the OSI reference model. TCP works mainly at the transport layer, while HTTP and FTP are application protocols.
Q254. Which feature is NOT normally located on Excel’s Insert ribbon tab?
[IBPS RRB PO Mains 2025]
- Table
- Chart
- Picture
- Macros
- Shapes
Answer: D. Macros
Explanation: The Insert tab in Excel includes commands for tables, charts, images and shapes. Macro recording and access are usually found on the Developer or View tabs rather than inside Insert commands.
Q253. Which main memory holds currently running programs and their working data?
[IBPS RRB PO Mains 2025]
- Hard disk
- ROM
- RAM
- Optical disc
- Magnetic tape
Answer: C. RAM
Explanation: Random Access Memory is working storage for instructions and data needed while a system runs. It is normally volatile and quickly accessible, unlike a hard disk or optical disc used for persistent storage.
Q252. Which type of HTML tag supplies page metadata useful to search engines?
[IBPS RRB PO Mains 2025]
- div
- meta
- br
- table
- form
Answer: B. meta
Explanation: The HTML meta element can provide descriptions, encoding details and other document information. Search engines may use such metadata to interpret or present pages, though search ranking also depends on actual content and links.
Q251. Which Excel function returns a division remainder?
[IBPS RRB PO Mains 2025]
- QUOTIENT()
- DIVIDE()
- REMAINDER()
- MOD()
- ROUND()
Answer: D. MOD()
Explanation: The MOD function produces the remainder after a number is divided by another. For example, MOD(10,3) gives 1; QUOTIENT instead returns the integer portion of the division result.
