Deck 9: Defending Against Virus Attacks

Question 1

Self-replication and rapid spread define a computer ____________.

Answer 1

virus

Question 2

Which is a virus\worm spread in the form of a holiday greeting card?

A)Bropia
B)Mabutu
C)Santy
D)Zafi

Answer 2

D

Question 3

In the event a virus is isolated on an infected machine,which would likely NOT be a necessary step to remove the threat?

A)Find and follow virus removal instructions on the Internet.
B)Isolate the infected machine(s).
C)Run an antivirus program.
D)Reformat the machine and restore from backup.

Answer 3

D

Question 4

Which antivirus software provides Private Data Protection and Home Network Control components for home users?

A)Avast!
B)Norton
C)Panda
D)PC-cillin

Question 5

Which is the most effective and common method for defending a system against viruses and worms?

A)Download only to a machine not connected to the rest of the network.
B)Install and run antivirus software all the time.
C)Set all user accounts so they cannot install software or change browser settings.
D)Set browsers to block ActiveX and scripts.

Question 6

Which antivirus software provides audible voice alerts?

A)Avast!
B)McAfee
C)Norton
D)Panda

Question 7

Which is the most widespread danger to a computer connected to the Internet?

A)Denial of service attacks
B)Password attacks
C)Session hacking
D)Viruses and worms

Question 8

How does the Santy worm attack?

A)It is transmitted as a holiday greeting card to encourage users to open it.
B)It uses two worms rather than one to increase the infection.
C)It uses Microsoft messaging applications to attack machines.
D)It uses Perl script to attack a vulnerability in certain PHP bulletin board applications.

Question 9

What is the first priority in the event a virus is detected on your computer?

A)Determine where the virus came from.
B)Determine many machines are infected.
C)Scan the computer to determine the extent of the infection.
D)Stop the spread of the virus.

Question 10

A computer virus:

A)deletes files or changes system settings.
B)locates and records e-mail addresses on a computer.
C)records keystrokes and other activity.
D)self-replicates and spreads rapidly.

Question 11

A computer worm:

A)is less likely to damage a computer than a virus is.
B)can spread without user action such as downloading a file or opening an attachment.
C)cannot be identified or blocked with anti-virus software.
D)remains on one computer and does not spread across networks.

Question 12

After cleaning a virus infection,what is the best way to assure that it does not recur?

A)Determine how the infection happened in the first place.
B)Install a firewall.
C)Update the antivirus software.
D)Use a better antivirus software.

Question 13

Which best describes the relationship between ease of use and security?

A)The easier it is to use a system,the more secure it is.
B)The easier it is to use a system,the less secure it is.
C)The more secure you make a system,the easier it is to use.
D)None of the statements are correct.

Question 14

Which is LEAST likely to be an effective method to isolate a suspected virus?

A)Disconnect backup devices from the infected machine.
B)Disconnect an infected machine from the network.
C)Disconnect servers from the network.
D)Disconnect the subnetwork.

Question 15

Which is a worm that infects with a variant of the Rbot via various Microsoft messenger services?

A)Bropia
B)Mabutu
C)Santy
D)Zafi

Question 16

What is the most common method by which viruses spread?

A)By reading the e-mail address book and mailing itself to everyone listed.
B)By scanning the computer and following network connections.
C)By accessing the e-mail database and cloning sent mail.
D)By users downloading and installing unauthorized files from the Web.

Question 17

Which antivirus software provides home and commercial versions which utilize known virus signatures and heuristics methods to identify new worms?

A)Avast!
B)Norton
C)Panda
D)PC-cillin

Question 18

What is different about the Bropia infection?

A)It utilizes a holiday greeting card to encourage users to open it.
B)It carries two worms rather than one.
C)It uses the Google search engine to find bulletin board systems to attack.
D)It uses Perl script to attack a PHP vulnerability.

Question 19

Which is NOT an effective strategy to improve antivirus protection?

A)Do not open attachments unless you are positive about it.
B)Download only to a machine not connected to the network.
C)Be skeptical of any e-mail you are sent.
D)Respond to Microsoft security alerts and install advertised patches immediately.

Question 20

Which antivirus software includes a virus infection map?

A)Avast!
B)McAfee
C)Norton
D)PC-cillin

Question 21

Most antivirus applications store virus information in files with the extension ____________ that are regularly updated.

Question 22

To minimize security risks,systems should be configured to block or warn users before downloading any ____________ code such as ActiveX or Java applets.

Question 23

Scanning by use of rules to determine whether a file or program is acting like a virus is called ____________ scanning.

Question 24

Perhaps due to its prevalence,____________ is the e-mail program most often hit by virus and worm attacks.

Question 25

A(n)____________ is a program that can spread without any human intervention.

Question 26

Although a virus ____________ is actually a fake pretending to be a virus,it can cause people to delete files or make unneeded changes in their system.

Question 27

Some antivirus software actually scans ____________ on the server prior to downloading it to the local client.

Question 28

A multilingual,Linux-compatible,antivirus software is available by free download for home and non-commercial uses and is named ____________.