Test: Keyboard Shortcuts - UPSC MCQ

The devices which send data or control signals to the computer or processing unit are known as Input devices. Examples of input devices are- Mouse, Keyboard, Microphone, Scanner, Joystick etc.

On the other hand, the devices which receive data from the computer or processing unit, such that it is of some usable form for humans to understand, are called output devices. Examples are- All display units, Printers, Plotters, Speakers etc.

The data from the input device is taken then processed, modified and converted to human understandable form and send to output devices. The devices which do so are called Processing devices. For Example, CPU, Sound card, Video card etc.

Bluetooth is a wireless technology that allows the exchange of data within a short distance.

The first domain name registered was Symbolics.com. It was registered March 15, 1985.

Alt+Tab 

• The keyboard shortcut is most often used to switch between open programs in Microsoft Windows 10.

Alt + S

• ​Alt+S is a keyboard shortcut most often used to open the slide show settings in PowerPoint.

Ctrl + S​

• ​In Microsoft Word and other word processors, pressing Ctrl + S saves the current document.

Ctrl + Tab​

• ​ Ctrl+Tab is a keyboard shortcut most often used to switch between open tabs in a browser.

An operating system's capacity to run multiple programs simultaneously on a single processor machine is known as multiprogramming.

• There may be multiple tasks, programs, jobs, or processes running simultaneously in the main memory.
• Multiprogramming is demonstrated by a computer that simultaneously runs the Firefox web browser and Excel.
• The constant operation of processes is the basic goal of multiprogramming. It is claimed that this design will maximize CPU use.

A connected device that is not a part of the main architecture of a computer system is referred to as a peripheral device.

• A peripheral is a piece of equipment that is connected to a host computer but is in some ways dependent on the host. Although it increases the host's capabilities, it is not a fundamental component of computer design.
• Peripheral devices include things like keyboards, interface boards, external memory expansion cards, video displays, floppy disc drives, external hard drives, and other input/output devices that may or may not have digital circuitry.

Networking devices are physical devices that allow computer networks to establish communication with each other. Different network devices are Modems, Bridges, Switches, Gateway etc. A Bridge is a device in the computer used to connect larger LANs with a group of smaller LANs. Hence option 3 is correct. It operates in the Data Link layer in the OSI model. Bridges use Media Access Control (MAC) address to transfer data packets (also called frames) and bridge uses the MAC address to forward the data or blocks it. 

The font effect that is not available in the MS-Word 2010 font dialog box is "Equalize Character Height".

• Equalize Character Height: This option is not available in the MS-Word 2010 font dialog box, but in general, it would be used to adjust the size of characters so that they are all the same height.
• This can be useful for creating a consistent look across text that uses different fonts or styles.
• However, as noted, this option is not available in MS-Word 2010, so it cannot be used in that program.

A web browser is an application software which is used for accessing information over the internet like Google Chrome, Mozilla Firefox etc.

• Whereas Server Side programs runs on server dealing with the generation of content of web page like querying a database, access/write file on a server etc.
• Java, JSP, Python Ruby etc are some examples of Server-Side Programming language.

The correct answer is It is the test used before registering into websites to check if the user is human.

• CAPTCHA is the test used before registering into websites to check if the user is human.
• It is mainly designed to block automated bots.
• CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart".
• The term captcha was first coined by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford in 2003.
• User requires to correctly evaluate and enter a sequence of letters or numbers seen in a distorted image displayed on their screen.

A one-time password (OTP) is a password that is valid for only one login session.

​​​​​​​Bookmark:

• A bookmark is a feature of the web browser that sends your browser to a certain webpage.
•  A bookmark, also known as an electronic bookmark, is a method of saving the title, URL address, and favicon of the corresponding page for future reference.
• In most browsers, you need to press a shortcut key from the keyboard Ctrl + D to bookmark the page you are viewing.

• The cell in MS Excel holds the data. The user can enter values and formulas in the cell in MS Excel 2007 by selecting the cell first, then can edit the cell value by clicking in the formula bar.
• The formula bar is also used for entering formulas like sum(), min(), max() and so on, as per the user requirement.
• Another way to enter data into the cell is to select the respective cell and then press the F2 function key.

Thus the correct answer is "Formula Bar".

Memory Management of an operating system takes care of allocation and deallocation of memory space to program.

• Memory management is the functionality of an operating system that handles or manages primary memory and moves processes back and forth between main memory and disk during execution.
• Memory management keeps track of each and every memory location, regardless of either it is allocated to some process or it is free.
  • It checks how much memory is to be allocated to processes.
  • It decides which process will get memory at what time.
  • It tracks whenever some memory gets freed or unallocated and correspondingly it updates the status.

On your keyboard, hold down the Shift key while pressing the Delete key. You will be prompted to confirm that you wish to remove the file or folder because you cannot undo this.

• Send files to the Recycle Bin on Windows, then empty the Recycle Bin to permanently erase the files. Without data or file recovery software, you cannot recover the files when the recycle bin is empty.
• Because Windows 11 is being used to display this screenshot, you must additionally click Show more options after right-clicking the file.
• The Permanently Delete option in the context menu won't appear until after that. Also, you will be asked to confirm the deletion after clicking "Permanently Remove."

HTML (HyperText Markup Language) is a markup language used for structuring and displaying content on web pages. It employs tags to define elements such as headings, paragraphs, images, and links. By organizing the layout and content, HTML enables browsers to render websites correctly and provide a consistent user experience.