Security Program System Threats MCQs

16 MCQs  — Operating System MCQs  (Page 2 of 2)

What is port scanning?
A. It is a software used to scan system for attack
B. It is a software application designed to probe a server or host for open ports
C. It is software used to scan system for introducing attacks by brute force
D. None of the mentioned
Which is not a port scan type?
A. Tcp scanning
B. Syn scanning
C. Udp scanning
D. System scanning
Which is not a valid port scan type?
A. Ack scanning
B. Window scanning
C. Igmp scan
D. Fin scanning
What are zombie systems?
A. Are specific system which are designed to attack by manufacturer
B. They are network of known hacking group
C. These systems are previously compromised independent systems
D. None of the mentioned
What is known as a DOS attack?
A. It is attacked to block traffic of network
B. It is attacked to harm contents stored in hdd by worm spawn processes
C. It is an attempt to make a machine or network resource unavailable
D. None of the mentioned
With regard to DOS attack what is not true from below options?
A. We can stop dos attack completely
B. By upgrading os vulnerability we can stop dos attack to some extent
C. Dos attack has to be stopped at network level
D. Such attack can last for hours