Q. In Satellite Communication, multiple repeaters are known as ?

Transponders
Transposers
Transpyres
None of these
✅ The correct answer is a. Transponders.

Q. A DOS attack is used to ?

Overload a system or Network make it unavailable
Overload a system or Network make it available
Overloaded System
None of these
✅ The correct answer is a. Overload a system or Network make it unavailable.

Q. The type of cryptography in which one key is public and the other is private is called ?

A symmetric key cryptography
A small key
Both
None of these
✅ The correct answer is a. A symmetric key cryptography.

Q. An External database is referred to ?

Database created in Excel
Database created in Word
Word Files
None of these
✅ The correct answer is a. Database created in Excel.

Q. Which of the following is not layer in OSI model ?

Process Layer
Application Layer
Presentation Layer
None of these
✅ The correct answer is a. Process Layer.