Network Security and the Ethernet

Question 1

Ethernet

Answer 1

A system for connecting a number of devices to form a LAN, with protocols to control data transmission. It is how data is formatted and communicated between devices on the same network. The Ethernet breaks down data into frames which consist of a source, destination and error checking.

Question 2

Copper Cables

Answer 2

These are very cheap cables, they have a low bandwidth(slow speed), and can break, be interfered with or deteriorate.

Question 3

Fibre Optics cable

Answer 3

These cables are much faster and efficient, they have a high bandwidth(faster speeds) as well as better security and no interference. They can also be very expensive.

Question 4

Network Security

Answer 4

As more and more devices get connected to the Internet, more opportunities to obtain personal information occur. More technology can be hacked into, such as health bands(e.g. FitBit), this means that personal health information can be stolen and possibly used against the person to harm them. Data theft, misuse, damage and disposal can occur.

Question 5

Authentication

Answer 5

Identifying a genuine user, can be through password protection such as password renewal, attempts and password strength. Or it can be done through User Access Levels such as read only and GDPR

Question 6

Encryption

Answer 6

Converting data into another form, or code. Only the authorised or intended recipient with access to a password or encryption key can access.

Question 7

Firewalls

Answer 7

A network security system built to monitor and control incoming and outgoing traffic on a network, based on a set of predetermined rules.

Question 8

MAC Address Security

Answer 8

Media Access Control, this allows you to create a list of devices that you want to be able to access the network, useful on LANs and PANs.

Question 9

PAN

Answer 9

Personal Area Network