Computer Virus Basics

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Explore the fundamentals of computer viruses and their impact on programs and systems

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Questions 19

Answers

1
What is a metamorphic virus?
Hides from detection
Infects boot record
Infects files
Mutates and rewrites
2
What is a multipartite virus?
Hides from detection
Infects in multiple ways
Mutates with infection
Infects boot record
3
What is a file infector?
Infects boot record
Infects files
Infects emails
Infects documents
4
What is an infection mechanism?
Virus removal
Virus spread
Virus creation
Virus detection
5
What does a virus do to programs?
Deletes them
Hides them
Infects them
Repairs them
6
What is the execution phase?
Virus performs function
Virus activates
Virus hides
Virus spreads
7
What is a stealth virus?
Encrypts itself
Spreads quickly
Deletes files
Hides from detection
8
Why are macro viruses threatening?
Hard to remove
Expensive to fix
Easily spread
Hard to detect
9
What is a boot sector infector?
Infects files
Infects documents
Infects emails
Infects boot record
10
What happens in the propagation phase?
Virus updates
Virus deletes files
Virus hides
Virus spreads
11
When is a virus dormant?
During updates
When deleted
Always active
Idle state
12
What does an encrypted virus do?
Deletes files
Encrypts itself
Hides files
Spreads quickly
13
What is the Melissa virus?
Macro virus
File infector
Stealth virus
Boot sector infector
14
What is a macro virus?
Infects hardware
Infects documents
Infects networks
Infects emails
15
What is a virus trigger?
Activation event
Shutdown event
Update event
Backup event
16
True or false: Viruses can execute secretly
False
True
17
How does a virus spread?
Through emails
Through printers
By phone
Via USB only
18
What does a virus payload do?
Activates virus
Hides virus
Spreads virus
Performs actions
19
What is a polymorphic virus?
Hides from detection
Infects boot record
Infects files
Mutates with infection

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