The internal code of any software that will set of a malicious function when specified conditions are met, is called _____________

• A. Logic bomb
• B. Trap door
• C. Code stacker
• D. None of the mentioned

The pattern that can be used to identify a virus is known as _____________

• A. Stealth
• B. Virus signature
• C. Armoured
• D. Multipartite

Which one of the following is a process that uses the spawn mechanism to revage the system performance?

• A. Worm
• B. Trojan
• C. Threat
• D. Virus

What is a trap door in a program?

• A. A security hole, inserted at programming time in the system for later use
• B. A type of antivirus
• C. Security hole in a network
• D. None of the mentioned

Which one of the following is not an attack, but a search for vulnerabilities to attack?

• A. Denial of service
• B. Port scanning
• C. Memory access violation
• D. Dumpster diving

File virus attaches itself to the _____________

• A. Source file
• B. Object file
• C. Executable file
• D. All of the mentioned

Multipartite viruses attack on _____________

• A. Files
• B. Boot sector
• C. Memory
• D. All of the mentioned

In asymmetric encryption _____________

• A. Same key is used for encryption and decryption
• B. Different keys are used encryption and decryption
• C. No key is required for encryption and decryption
• D. None of the mentioned

In distributed system, each processor has its own ___________

• A. Local memory
• B. Clock
• C. Both local memory and clock
• D. None of the mentioned

If one site fails in distributed system then ___________

• A. The remaining sites can continue operating
• B. All the sites will stop working
• C. Directly connected sites will stop working
• D. None of the mentioned