(Answered) Provide clear step by step answers where possible1 what are

Engineering

Provide clear step by step answers where possible.

1) What are the possible threats to a computer system and how to provide security?

2) Explain the typical causes of computer failures

3) Write a note on Computer virus.

4) Mention the different data types available in SQL.

5) What is structured Query Language? Write the SQL command for deleting tuple(row) from the database.

6) Write the syntax for INSERT command in SQL.

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