Cryptography

Question 1

cyber security

Answer 1

refers to preventative methods used to protect information from being stolen, company, attacked

Question 2

Encryption

Answer 2

Is used to convert data into cypher text that can not be deciphered by people without the encryption key

Question 3

Symmetric encryption

Answer 3

Process of decryption is simply the opposite of the process used to encrypt

Question 4

Advantages/ Disadvantages of symmetric encryption

Answer 4

They are easy to execute

With Modern computers, they are easy to crack

Question 5

Asymmetric encryption

Answer 5

If someone knows the encryption key, they can encrypt information but not decrypt it. They are almost impossible to crack. It is also known as a public key.

Question 6

advantage/disadvantage of Asymmetric key

Answer 6

It is hard to decrypt from an outside source.

It is much harder to use

Question 7

Biometrics

Answer 7

using the body as a method of gaining access to computing systems uses human measurements and metrics.

Question 8

Example of Biometric

Answer 8

smartphones have fingerprints scanners

Biometric passports use a combination of facial recognition.

Question 9

Advantage of biometric

Answer 9

It is very difficult to replicate the data
It is more Secure
Speed up conventional queueing systems
Your biometrics cannot be lost

Question 10

Disadvantages of biometric

Answer 10

Biometrics are not always 100% accurate
Privacy concerns
People change over time due to aging

Question 11

White hat hackers

Answer 11

uses their skills to break into a system to expose flaws and then advise on how they can be fixed

Question 12

Grey hat hackers

Answer 12

They are white hat hackers who are not directly hired by a company but perform penetration testing anyway to expose flaws.

Question 13

Black hat hackers

Answer 13

They break into systems for their own purposes. This could be for financial gain, political motivation.

Question 14

Virus

Answer 14

A software which will attempt to spread over the network by infecting email, removable storage devices or known software vulnerabilities

Question 15

Trojans

Answer 15

They are hidden in files or programs. when the files are opened, it will activate, delivering its payload. Tricking users into downloading unknown files

Question 16

Spyware

Answer 16

This will track key presses and software use, details of which are then sent back to the hacker. This is used for identity fraud

Question 17

Scare-ware

Answer 17

will try and scare the user into buying fake or further malicious software. it will pop up messages suggesting that your system is compromised and their software can fix the problem at a price.

Question 18

ransom-ware