6 Security & Ethics

Question 1

What does data loss mean?

Answer 1

Data loss means that data no longer exists in storage.

Question 2

What is data corruption?

Answer 2

Data corruption is when the data has been damaged or changed.

Question 3

What is unauthorized access?

Answer 3

Unauthorized access is when data is edited or deleted be people who didn’t have permission to see or alter the data.

Question 4

What does integrity mean?

Answer 4

Integrity means the data is protected from unauthorized changes.

Question 5

What does privacy mean?

Answer 5

Privacy means that you data is only viewed or copied by people that have permission.

Question 6

What is a hardware fault?

Answer 6

A hardware faults happen when the computer is not well built or it has been damaged.

Question 7

What is a software fault?

Answer 7

A software fault is when data is corrupt of lost because the software didn’t work properly.

Question 8

What are external threats?

Answer 8

External threats might include floods, earthquakes or social unrest.

Question 9

What are executable files?

Answer 9

Executable files are files that perform functions when you click on the file and they cannot be viewed because they are compiled.

Question 10

What does DoS stand for and what does it do?

Answer 10

DoS stands for Denial of Service attack and it oveloads your computer(with messages from one account so it can be blocked) and it slowes down your computer.

Question 11

What does DDoS stand for and what does it do?

Answer 11

DDoS stands for Distribute Denial of Data attack. It is similat to DoS however it is harder to stop because a lot of messages are sent not only from one account but hundreds if not more.

Question 12

By whom would a DDoS or a DoS attack com from?

Answer 12

The attack would come from someone who wants to protest against the company or simply attack it.

Question 13

What is identity theft?

Answer 13

Identity theft is a crime and it happens when someone finds out personal infromations about you and will use it against you.

Question 14

What tricks might people use to get personal data from you?

Answer 14

Phishing happens when someone sends you a message that is disguised as a message from a company and asks you to respond to personal questions.
Pharming is when someone makes a fake website and when you log on and enter really personal data like bank details.

Question 15

What is a biometric check?

Answer 15

A biometric check is when a part of your body is used to confirm identity.

Question 16

Physical properties might a biometrick check scan?

Answer 16

Finger print
The pattern if your Iris.
Features of your eyes: the distance between your eyes.
And others.

Question 17

What does LAN stand for and what does it do?

Answer 17

LAN stands for Local Area Network and it connects all the computers in an area so that people can share programs and data ON THAT LAN.

Question 18

What does a router do?

Answer 18

The router can be connected to the LAN and the LAN than can join the internet.

Question 19

What are hubs?

Answer 19

Hubs are LANs.

Question 20

What does a proxy do?

Answer 20

A proxy handles the connection between two computers or networks.

Question 21

What does a firewall do?

Answer 21

The firewall scans all the data that goes in and out of the local network for malware.

Question 22

What is OSI?

Answer 22

OSI is a way of grouping protocols in seven layers.

Question 23

Which are the seven layers in which OSI stores the protocols?

Answer 23

1. Physical layer
2. Data link layer
3. Network layer
4. Transport layer (TCP, IP)
5. Session layer
6. Presentation layer
7. Application layer

Question 24

What does TLS stand for and what does it do?

Answer 24

TLS stands for Transport layer security is a security protocol and it basically encrypts the information that is sent.

Question 25

What are the 2 parts of TLS?

Answer 25

TLS record protocol - a method to break down the communication(message) into smaller parts called records.
TLS handshake protocol - establishes a private link between the two computer if the other device is genuine so that they will have the same protocols and so that they can communicate.

Question 26

What does e-commerce mean?

Answer 26

E-commerce means buying or selling on the internet.

Question 27

What does teleworking mean?

Answer 27

Teleworking means when someone is working from home.

Question 28

What is a certification authority?

Answer 28

CA(certification authority) is an organization that everyone trusts and it checks the digital certificats that show if the other device is safe. It plays a big role in TLS.

Question 29

What does SSL stand for and what does it do?

Answer 29

SSL stands for secured sockets layer and it is an earlier version of TLS however it is not as secure.

Question 30

What is the difference between cypher text and plain text.

Answer 30

Plain text is a normal text and isn’t that secure. A cypher text is a text that is encrypted and it can be read only by someone who has the encryption key.

Question 31

What is an encryption key?

Answer 31

An encryption key can be a string of text or numbers that tells the computer how to encrypt and decrypt.

Question 32

What is symetric incryption?

Answer 32

Symetric encryption is when the key is secret and only the sender and reciever know the key.

Question 33

What happens in asymetric encryption?

Answer 33

In asymetric encryption there is a public key and a private key.
The public key can be downloaded by everyone, but it can only encrypt
The private key can only decrypt however it is not shared.

Question 34

Which encryption is faster and which is safer symetric of asymetric?

Answer 34

Symetric is faster, but asymetric is safer.

Question 35

Name 3 internal threats

Answer 35

Hardware faults
Software faults
Human error

Question 36

Name three malpractices.

Answer 36

Leaving the computer logged on when you leave.
Telling someone else your password.
Using work computer for personal business because the company loses valuable work time.