Networks and Security

Question 1

firewall

Answer 1

analyses/scans network traffic
can block traffic from suspicious hosts/computers/addresses/ports
its extremely useful against:
hackers
transmission of malware

Question 2

passwords

Answer 2

user has to enter a username and password
can be authenticated by other methods such as biometric
login details matched to a database of users
effective against:
hackers
unauthorised access

Question 3

mac address filtering

Answer 3

each hardware device has a unique hardware address
a database of allowed hardware/mac addresses is kept/whitelist
to connect to the network a device must have an address on the database/whitelist

Question 4

what are the types of malware malware

Answer 4

spyware
worm
ransomware
addware
trojan
virus

Question 5

social engineering

Answer 5

blagging: Inventing a scenario to engage the victim and gain there trust
phishing: Gaining info using an external link
shouldering: Viewing private info over someone’s shoulder
pharming :A websites traffic redirected to a fake websites

Question 6

security threats

Answer 6

removable media
Misconfigured access rights
Passwords
Outdated or Patched Software

Question 7

what is penetration testing

Answer 7

Simulating an attack to see any weakness

Question 8

What is white box testing

Answer 8

An attacker might have some idea of the inner workings

Question 9

What is black box testing

Answer 9

An attacker with no connection to the company

Question 10

What might the attacker have access to in white box testing

Answer 10

Basic files and to the network

Question 11

PAN,LAN,WAN

Answer 11

personal area network: usually a computer to a household object like a printer, headphones or a phone
large area network: usually one building and is connected in a topology with ethernet cables
wide area network: large geographical location like a continent and is usually wireless