Question Discussion & Solution

The correct answer is Cache memory.

• ​Cache memory is a high-speed storage area for temporary storage.
  • It is the smaller and fastest memory component in the computer.
  • It is used during the reading and writing processes from the disk.
  • It acts as a buffer between RAM and the CPU.

Additional Information

• Flash drive is popularly known as a pen drive.
• A pen drive is also called a USB flash drive.
  • It is a data storage device that includes flash memory with an integrated USB interface.
•  The RAM is a read/write memory.
  • The CPU can change the contents of the RAM at any time.
  • RAM is volatile.
• Read-Only Memory (ROM) is non-volatile and retains its information even after the power is turned off.

The correct answer is Shell.

Key Points

• Program
  • It is a collection of instructions that are executed by a computer to perform a specific task.
  • It is generally written by a computer programmer in a programming language.
• Shell
  • It is a program that interprets commands and acts as an intermediary between the user and the workings of the operating system.
  • It will give a prompt for the user to type in a command, take the command, execute it, and then waits for another command.

Additional Information

• Communications
  • Computer communications is a process, where two or more computers or devices transfer data, instructions, and information.
  • The most common examples are Email, SMS chat, Social Networks, etc.
• Thread
  • It is a single sequence stream within processes.
  • Threads are executed one after another but give the illusion as if they are executing in parallel.
• File Modification
  • It refers to modifying the file and folder and it can be only be done by the administrator for a computer or the owner of a file or folder.

The correct answer is 2.

Key Points

• There are 2 control (Ctrl) keys on the keyboard.
• There are 2 Shift keys on the keyboard.
•  A Control key Ctrl is a modifier key that, when pressed in conjunction with another key, performs a special operation (for example, Ctrl + C ).
• Similar to the Shift key, the Control key rarely performs any function when pressed by itself.

Additional Information

• Longest key in keyboard - Space bar
• There is a total of 104 keys on the standard keyboard.
• Print Screen, Scroll Lock, Pause, Break, Insert, Home, Page Up, Delete, End, and Page down is all examples of control keys.  

The correct answer is 8.

• 1 byte is equal to 8 bits.
• A byte is a unit of information in computer storage and processing and contains 8 bits.

Additional Information

The correct answer is Ctrl+N.

Key Points

• Ctrl+N is the shortcut key used to open a New Document in the MS office.
• In the new document new worksheet is opened in the same window. 

Additional Information

• Some important shortcuts used in MS Excel:
  • Ctrl + O Open an existing workbook.
  • Ctrl + S Save the active workbook.
  • F12 Save the active workbook under a new name, displays the Save as dialog box.
  • Ctrl + W Close the active workbook.
  • Ctrl + C Copy the contents of the selected cells to Clipboard.
  • Ctrl + X Cut the contents of the selected cells to Clipboard.
  • Ctrl + V Insert the contents of the Clipboard into the selected cell(s).