Mixed Questions

The correct answer is Drag and Drop.

• The action of using the mouse to move an item on the computer screen to a new location is called Drag and Drop.
• Drag and drop is a common action performed within a graphical user interface that involves moving the cursor over an object, selecting it, and moving it to a new location.
• While using a mouse, we can drag and drop an object by clicking the mouse button to select an object, then moving the mouse while keeping the mouse button pushed down. This is called "dragging" the object.
• After moving the object where we want to place it, we can lift up the mouse button to "drop" the object in the new location. 
• Copy and paste are commands in a computer user interface and are one method of transferring data from one location to another. It creates a duplicate in the new location and enables simple data replication.
• Cut removes the item from its current location and places it into the clipboard. Paste inserts the current clipboard contents into the new location.
• Plug and Play is a phrase used to describe devices that work with a computer system as soon as they are connected.

The correct answer is Virus.

• A disruptive program that spreads from program to program or from disk to disk is known as a Virus.
• A computer virus is designed to spread from host to host and has the ability to replicate itself. 
• When this replication succeeds, the affected areas are then said to be "infected" with a computer virus.
• A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code.
• In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.
• Once a virus has successfully attached to a program, file, or document, the virus will lie dormant until circumstances cause the computer or device to execute its code. 

The correct answer is option 3 i.e Backup.

Key Points

• Protecting data by copying it from the original source to a different destination is called Backup.
  • Backups can be used to recover data after its loss from data deletion or corruption.

Additional Information​ 

• The activity of creating sectors and tracks on a hard disk is called Formatting.
• The process of unauthorised access to information system is called Hacking.
  • One who does hacking is called Hacker.
  • Hackers are mainly classified as White Hat Hackers, Black Hat Hackers, Gray Hat Hackers.
• Data diddling is the unauthorised changing of data before or during their input to a computer system.