Network Security

Question 1

why is no network completely immune to security threats

Answer 1

• because as organisations develop new security measures

- hackers develop new ways around them

Question 2

what is the role of network security

Answer 2

to minimise the chances of unauthorised access

Question 3

what is cyber security or network security

Answer 3

protecting computers from threats

Question 4

how is good cyber security build from the ground up

Answer 4

• as code is being developed for any program
• it should be checked my multiple people
• code reviews can help to avoid the problems a code might have

Question 5

what are the questions that should be asked when asking multiple people to check developing code in terms of its cyber security

Answer 5

• would it be possible for an outside user to abuse this code
• does it contain any vulnerabilities
• is the programmer leaving a back door for someone to enter the system later

Question 6

what should a code be robust enough

Answer 6

to only provide data to those who are authorised to receive it

Question 7

what does validation involve and how does it do this

Answer 7

• it involves checking the user is who they say they really are
• this can be done through a password or biometric measure

Question 8

what does authentication involve and how does it do this

Answer 8

• it involves ensuring the user is entitled to access what they are trying to reach
• like you would not want a costumer to be able to view employee data
• but you want them to view their own account

Question 9

why is useful to make sure that a human being rather than a machine is using the computer

Answer 9

because a lot of cyber attacks are carried out by computers and programs

Question 10

what are the two examples of a system making sure that a human is using a computer rather than a computer and how does it work

Answer 10

• captcha
• where a blurry or difficult to read set of characters have to be entered
• or have a user verify an access attempt
• by having the user click on a link in an e mail

Question 11

what is the effect of a software being installed in a system regarding hackers

Answer 11

• hackers have an opportunity to introduce viruses

- or attempt SQL injection attacks

Question 12

what do security patches do and why are they made

Answer 12

• they protect against identified security threats

- developers create them to combat the hacking of software

Question 13

why should someone download the most recent and most secure version of a program and anti malware software

Answer 13

because the most recent version is needed to deal with the most recent malware

Question 14

what is ethical hacking or penetration testing

Answer 14

when an individual attempts to hack into a system with a view to identifying weaknesses

Question 15

who do ethical hackers work with and what is their significance

Answer 15

• they work with software developers

- and their findings allow for the production of more secure programs

Question 16

what are network forensics

Answer 16

using software to track the identities of anyone trying to access the system

Question 17

what do network forensics allow us to do

Answer 17

• although they dont prevent the penetration of a software
• they allow for the perpetrators to be identified and caught
• which prevents future attacks

Question 18

what is the low tech solution to cyber attacks

Answer 18

• the use of network and policy documents
• it spells out hat network users can and cant do
• and cover factors such as password complexity or a guidance on e mail attachments

Question 19

what is are the three ways that you can increse the protection of a system

Answer 19

• use firewalls to prevent unauthorised access to sensitive information
• use anti malware to detect and remove viruses or spy ware trying to infect the system or do sql injections
• use encryption so that interceptes data can’t be used or read