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Q1Computer · MemoryUPPCL Technician Grade-II 2019
Which of the following optical storage formats was developed to enable recording, rewriting, and playback of high- definition (HD) video?
Answer: B) Blue-ray Disk
The Blue-ray Disk was specifically developed to enable highdefinition video recording, rewriting, and playback. It uses a blueviolet laser, which allows data to be stored at a much higher density than formats like CD or DVD. This high storage capacity is essential for handling the large file sizes of HD video content, which other listed optical formats cannot support effectively. -
Q2Computer · Introduction to ComputerAllahabad High Court RO 2021
A __ is a large and expensive computer capable of simultaneously processing data for hundreds of thousands of users.
Answer: B) Mainframe computer
The question describes a computer capable of simultaneous data processing for hundreds of thousands of users, being large and expensive. These characteristics uniquely define a mainframe computer, whereas other options are designed for personal or limited usage. -
Q3Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Technician Grade-II 2023
The maximum number of columns contained in a table of MS-Word 2010 is:
Answer: D) 63
In MS-Word 2010, a table can contain a maximum of 63 columns. This limit is defined by Microsoft and relates to the table structure capabilities of the software. Attempting to create more columns will result in reaching this built-in limitation. -
Q4Computer · MemoryUPPCL Assistant Accountant (AC) 2019
Which of the following sets of words best describes the characteristics of a primary storage device, like RAM?
Answer: C) Expensive, Volatile, fast access
RAM is a primary storage device that is volatile, meaning data is lost when power is off. It provides fast access times but is relatively expensive. These characteristics distinguish it from secondary storage devices. -
Q5Computer · Operating SystemUPPCL Assistant Accountant 2016
A computer system that permits multiple users to run programs at the same time is a:
Answer: C) time-sharing system
This system divides the resources of a central computer among multiple users by allocating small time slices to each. The CPU time is rapidly switched between users, creating the illusion that all are running programs simultaneously. It is specifically designed for a multi-user environment where concurrent program execution is required. -
Q6Computer · Virus & Cyber SecurityUPSSSC Enforcement Constable 2025
Which of the following is not a malicious program?
Answer: C) Web browser
A web browser is general-purpose software used for web browsing, while Trojan horse, virus and worm are malicious programs. -
Q7Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Technician Grade-II 2023
The appearance and readability of the Word document can be improved by changing the appearance of the text. This is referred to as ___.
Answer: C) Formatting
The process of changing text appearance and readability by modifying font, size, color, and other visual properties is called formatting. This is a fundamental word processing function that makes documents more attractive and organized by enhancing their visual presentation. -
Q8Computer · Operating SystemSSC MTS 2013
Which MS-DOS command is used to create a subdirectory?
Answer: B) MKDIR
The MKDIR command in MS-DOS is used to create a subdirectory, standing for 'Make Directory'. This command creates a new folder within the file system structure. Its abbreviated form MD can also be used for the same purpose. -
Q9Computer · Digital India, E-Governance & IT in SocietyUPSSSC Junior Analyst (Drug) 2025
Which of the following does not refer to stealing one's idea or invention and using it for their own benefit?
Answer: D) Copyscape
Copyscape is a software tool used to detect plagiarism, whereas the other options - Intellectual Property Theft, Piracy, and Plagiarism all refer to concepts involving stealing someone's ideas or inventions and using them without authorization for personal benefit. -
Q10Computer · Operating SystemRRB NTPC 2016
Which of the following is not an operating system in a computer?
Answer: D) Pentium
Windows, MS-DOS, and Unix are all operating systems that manage a computer's hardware and software resources. However, Pentium is a family of microprocessors (CPUs) manufactured by Intel, not an operating system. -
Q11Computer · MemoryRRB NTPC 2016
Which of the following cannot be modified after being programmed once by the computer manufacturer/user?
Answer: D) ROM
ROM (Read-Only Memory) is a non-volatile memory that can only be read. Once programmed by the manufacturer, it cannot be modified or rewritten. It stores permanent computer data like the BIOS. In contrast, the other options—RAM (Random Access), EPROM, and EEPROM—are modifiable. -
Q12Computer · Organization of ComputerUPPCL Assistant Private Secretary (APS) 2018
A CPU has three parts.
Answer: B) ALU, control unit, memory
The CPU (Central Processing Unit) is often called the 'brain' of the computer. Its three primary components are the Arithmetic Logic Unit (ALU), the Control Unit (CU), and Memory or Registers. The ALU performs all arithmetic calculations and logical operations. The Control Unit manages and coordinates the flow of data and instructions between all components of the computer. The Memory (Registers) temporarily stores the data and instructions that the CPU is currently processing. Disk drives and peripherals are not part of the CPU; they are external devices. -
Q13Computer · Operating SystemAllahabad High Court APS 2021
Which of the following is an MS-DOS external command?
Answer: C) FORMAT
In MS-DOS, external commands are those that are not part of the COMMAND.COM file and are stored separately as executable (.COM or .EXE) files. FORMAT.COM is a separate file, making it an external command. Commands like DIR, COPY, and PROMPT are internal commands that are embedded directly within the command interpreter. -
Q14Computer · Internet & E-MailSSC Delhi Police Head Constable (Ministerial) 2022
Which of the following search engines dominates the market with the most searches?
Answer: A) Google
Google dominates the global search engine market with a market share exceeding 90%. Its advanced search algorithms, comprehensive indexing, and user-friendly interface have made it the most widely used search engine worldwide. -
Q15Computer · Data Communication, Networking & OSI ModelUPPCL Executive Assistant 2022
Which of the following statements is/are true about data communication?
Answer: B) Protocol is a set of rules followed by the sender and receiver during data communication.
Statement (i) is incorrect because data communication involves not just text, but various data types like audio, video, and images. Statement (ii) is correct as a protocol is a standardized set of rules that ensures successful data exchange between sender and receiver. -
Q16Computer · Internet & E-MailEMRS PGT 2023
Identify the communication protocol which establishes a dedicated and direct connection between two communication devices. This protocol defines how two devices will authenticate each other and establish a direct link between them to exchange data.
Answer: A) PPP
PPP (Point-to-Point Protocol) is a data link layer communication protocol that establishes a direct connection between two nodes. This protocol provides authentication (PAP/CHAP) and creates a dedicated link for data transmission, which directly matches the requirements described in the question. -
Q17Computer · Operating SystemMPPCS (J) 2017
In Windows OS, which of the following shortcuts is used to close the currently active application window?
Answer: D) ALT + F4
In Windows OS, the ALT + F4 shortcut key is used to close the currently active application window. It issues the command to terminate the application directly. Other options like CTRL + F4 are typically used to close a document or tab within an application, not the entire program. -
Q18Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Technician Grade-II 2019
What will happen if you press the F2 key after selecting a cell in Microsoft Excel?
Answer: B) The cell will switch to edit mode.
In Microsoft Excel, pressing the F2 key after selecting a cell switches the cell into edit mode. This allows the user to directly edit the data within the cell itself, without using the formula bar. It is a common keyboard shortcut for quick editing. -
Q19Computer · Other Productivity & Office ToolsUPSSSC Junior Engineer 2021
How much free storage does Gmail provide?
Answer: C) 15 GB
Gmail provides users with 15 GB of free storage. This storage is shared across Gmail, Google Drive, and Google Photos. This integrated approach allows users to manage their emails, files, and photos in one place, making efficient use of the allocated space. -
Q20Computer · Operating SystemUPPCL Technician Grade-II 2021
Linux is ___.
Answer: B) an operating system
Linux is an open-source operating system that manages computer hardware and software resources. It provides a software platform for running other applications, rather than being a programming language, interpreter, or assembly language.
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