T3 | Protecting Data

Question 1

OS Patches

Answer 1

OS patches will fix any security loopholes that hackers could use

Question 2

Anti-virus software

Answer 2

1. Runs in the background

2. Maintains a virus definition database

Question 3

Heuristic analysis

Answer 3

Doesn’t scan every file

Question 4

What happens if the Anti-Virus detects a virus?

Answer 4

1. Quarantined

2. Deleted

Question 5

Detecting a virus

Answer 5

Each file is scanned to see if it contains any virus definitions

Question 6

Real-Time Scan

Answer 6

Each file is scanned before it is saved/copied/opened/run

Question 7

Disadvantage of Real-Time Scan

Answer 7

1. May be a short delay between actions as files are scanned

Question 8

Full-Scan

Answer 8

Checks every file on the PC, usually scheduled for regular intervals

Question 9

Disadvantage of Full-Scan

Answer 9

1. May take hours

2. Slows down PC

Question 10

Quarantine

Answer 10

An area where no file can be opened or run

Question 11

Removal

Answer 11

Removal is difficult as viruses can change their characteristics to avoid detection and removal

Question 12

Protecting against hackers (passwords)

Answer 12

1. Passwords should be hard to guess
2. Use different passwords
3. Change passwords regularly

Question 13

Validating a new password

Answer 13

Between 10 and 15 characters, mixture of numbers/letters/symbols/lower and upper case

Question 14

Verification methods

Answer 14

1. Send code to mobile

2. Security question

Question 15

Security question

Answer 15

Usually will only ask for certain characters from it (prevents keyloggers getting info)

Question 16

Foiling Spyware

Answer 16

Using a drop-down list instead of key presses (keylogger)

Question 17

Captcha

Answer 17

Captchas prevent brute-force attacks at password cracking

Question 18

Password Manager

Answer 18

1. Passwords all stored in one place

2. Requires 1 password to access all passwords

Question 19

Firewalls

Answer 19

Designed to prevent unauthorised access to or from a private network (forms a barrier)

Question 20

Ports

Answer 20

Data from internet goes through a specific port (certain ports might be blocked by a firewall)

Question 21

Two-way Firewall

Answer 21

Two way will prevent malware as well as other things

Question 22

SPI (Stateful Packet Inspection)

Answer 22

Where packets of data incoming are checked for legitimacy

Question 23

Home Router Firewall

Answer 23

Home routers usually contain effective hardware firewall

Question 24

Limitations of Firewalls

Answer 24

1. Cannot prevent an inside attack
2. Network could be slowed if improperly configured
3. Cannot protect against external drive malware