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OS Security
What is known as masquerading?
When one participant in communication pretends to be someone else
When attacker modifies data in communication
When attack is of fraudulent repeat of a valid data
When attack gains access to remote systems
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rikazzz
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OS Security
Which of the following are forms of malicious attack?
Theft of information
Modification of data
Wiping of information
All of the mentioned
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rikazzz
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OS Security
What is breach of availability?
This type of violation involves unauthorized reading of data
This violation involves unauthorized modification of data
This violation involves unauthorized destruction of data
This violation involves unauthorized use of resources
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rikazzz
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OS Security
The replacement of a bad block generally is not totally automatic because ___________
data in bad block can not be replaced
data in bad block is usually lost
bad block does not contain any data
none of the mentioned
Author:
rikazzz
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OS Security
Which of the following is the least secure method of authentication?
Key card
fingerprint
retina pattern
Password
Passwords can be compromised more easily than to replicate a physical thing like key card, fingerprint or retina.
Author:
rikazzz
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OS Security
From the following, which is not a common file permission?
Write
Execute
Stop
Read
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rikazzz
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OS Security
What is theft of service?
This type of violation involves unauthorized reading of data
This violation involves unauthorized modification of data
This violation involves unauthorized destruction of data
This violation involves unauthorized use of resources
Author:
rikazzz
Comment
OS Security
What is Trojan horse?
It is a useful way to encrypt password
It is a user which steals valuable information
It is a rogue program which tricks users
It’s a brute force attack algorithm
Author:
rikazzz
Comment
OS Security
Why is one time password safe?
It is easy to generated
It cannot be shared
It is different for every access
It is a complex encrypted password
One time password is safe since it is generated per access and thus cannot be brute forced or deduced.
Author:
rikazzz
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OS Security
What is the role of Key Distribution Center?
It is used to distribute keys to everyone in world
It intended to reduce the risks inherent in exchanging keys
All of the mentioned
None of the mentioned
Author:
rikazzz
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