单项选择题

Which one of the following items may be added to a password stored in MD5 to make it more secure？（）

A.Ciphertext
B.Salt
C.Cryptotext
D.Rainbow table

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单项选择题

Which item is the great majority of software vulnerabilities that have been discovered？（）

A.Stack vulnerabilities
B.Heap overflows
C.Software overflows
D.Buffer overflows

单项选择题

Which statement is true about vishing？（）

A.Influencing users to forward a call to a toll number （for example， a long distance or international number）
B.Influencing users to provide personal information over a web page
C.Using an inside facilitator to intentionally forward a call to a toll number （for example， a long distance orinternational number）
D.Influencing users to provide personal information over the phone

单项选择题

Refer to Cisco IOS Zone-Based Policy Firewall， where will the inspection policy be applied？（）

A.to the zone-pair
B.to the zone
C.to the interface
D.to the global service policy