Which one of these is the greatest threat to the security or integrity of data?
A careless employee
A hacker
A programmer who has written a virus.
A disgruntled ex-employee
Which one of these will have the greatest impact on the security of data?
Sweeping all files for viruses
Ensuring that licences are up to date.
Issuing all employees with a user ID and password.
Giving all employees regular and thorough training about the need for security and how to maintain it.
Which one of these statements about access controls is correct?
Biometric measurements are inadequate because employees may share iris patterns and fingerprints.
A smart card is more secure than a simple ID and password
A password gives guaranteed security
Call back methods on a phone line are useless
A server that allows the general public to access some pages of a website, and prevents access to sensitive information by people other than authorised employees is called:
A gateway
A router
A proxy server
A firewall
Which one of these statements is true about a firewall?
It can only keep hackers out.
It can keep hackers out and prevent internal users from accessing inappropriate sites
It does a virus sweep on all incoming data
It can be used to alter access privileges to the database.
Monitoring of users on a netwrok can be done with software called:
audit control software.
data dictionary
firewall
anti-virus software
Network performance monitoring software can be used to:
Check for viruses
Monitor the speed of employees' typing
Help make a decision about the planning of a network.
Encrypt sensitive data
Which one of these statements about encryption is true?
It prevents hackers getting into a network.
It allows sesnitive data to be sent from one computer to one receiving computer only.
It allows sensitive data to be accessible to anyone who wants them.
It allows data to be received only by computers that have the decryption algorithms.
Which one of these statements is true about encryption methods?
In transposition, characters are moved about while in substitution methods one character is substituted with another.
In substitution, characters are moved about while in transposition methods one character is substituted with another.
Only substitution works.
Only transposition works
Some networks charge for access with software called: