Explanation

• Junk email is unwanted and unsolicited email sent in bulk.
  • It is commonly used for ads, scams, or fake promotions.
  • The standard other name for junk email is Spam.

Additional information:

• Spoof means pretending to be another sender (email spoofing).
• Spam filters are used in email services to automatically block junk mail.

Last verified on 16-02-2026

Explanation

• SMTP is the standard protocol used to send emails across the internet.
• SMTP stands for Simple Mail Transfer Protocol.

Last verified on 16-02-2036

Explanation

A collection of related data is called a database.

Purpose: Databases organize data for easy access and manipulation.

Structure: They often consist of tables with rows (records) and columns (fields/attributes).

Last updated 15-feb-2026

Explanation

The F4 key is commonly used to repeat the last action in programs like Microsoft Word and Excel.

For example, if you format text or perform a specific action, pressing F4 will repeat it.

Last updated 15-feb-2026

Explanation

DOS stands for disk operating system

It is a command-line, text-based operating system designed to manage files 

Dennis Ritchie is the father of MS-DOS.

MS-DOS was developed in 1982.