Exam 5: Protecting Information Resources

Which statement is true of symmetric encryption?

Which form of text needs to be unscrambled using a decryption key?

When using mirror disks,if one of the two disks containing the same data fails,the other disk also fails.

When a program containing a virus is used,the virus attaches itself to other files,and the cycle continues.

The cost of setting up a virtual private network (VPN)is usually high.

In a level 2 security system,_____ must be protected to ensure confidentiality,accuracy,and integrity of data.

Social engineering is an attack that takes advantage of the backdoors in security systems.

If a drive in a redundant array of independent disks (RAID)system fails,data stored on it can be reconstructed from data stored on the remaining drives.

_____ outlines procedures for keeping an organization operational in the event of a natural disaster or a network attack or intrusion.

In the context of computer crimes and attacks,the difference between phishing and spear phishing is that:

The main drawback of an intrusion detection system (IDS)is its inability to prevent denial-of-service (DoS)attacks.

Data sent through a virtual private network (VPN)can be encrypted using the _____.

In the context of data encryption,briefly describe asymmetric encryption.

In the context of computer and network security,_____ means a quick recovery in the event of a system failure or disaster.

A(n)_____ is a combination of hardware and software that acts as a filter or barrier between a private network and external computers or networks.

In contrast to pharming,phishing involves hijacking an official Web site address by hacking a Domain Name System server.

Explain how proximity-release door openers are used as a physical security measure to control access to computers and networks.

When a computer is infected by a virus,_____.

A level 1 security system is used to protect _____ against unauthorized access.

Which statement is true of firewalls?