2.5 SECURING DATA ON A NETWORK

Question 1

HOW DO LOGINS AND PASSWORDS SECURE DATA?

Answer 1

Without the correct details, users can’t access network/its resources. Passwords are used to authenticate a user to a network.

Question 2

HOW DO FIREWALLS SECURE DATA?

Answer 2

Controls traffic to and from networks.

Question 3

HOW DO WEP ENCRYPTION SECURE DATA?

Answer 3

Wireless Encryption Protocol. Secures the wireless transfer of data.

Question 4

How do WAP ENCRYPTION SECURE DATA?

Answer 4

Wifi Protected Access. Generates new key for each device on wireless network. New keys are also provided for each packet of data sent.

Question 5

HOW DO VPNs SECURE DATA?

Answer 5

Provides access to private LAN from remote location. Connection to LAN is created using the infrastructure of a public network.

Question 6

WHAT ARE VPNs GOOD FOR?

Answer 6

• Access employees network when leaving home
• Access computers in different geographical locations to avoid local restrictions on web content due to geolocation rights management.
• Make secure payments
• Prevent surveillance of and access to their web activity.

Question 7

HOW DO FILE ACCESS RIGHTS SECURE DATA?

Answer 7

Ensures user is allowed to read only/ read and write to a file.

Question 8

HOW DO TRANSACTIONAL LOGS SECURE DATA?

Answer 8

They help identify which computer and network devices have been accessed.

Question 9

WHAT ARE THE TWO TYPES OF ENCRYPTION?

Answer 9

1. Symmetrical key encryption
2. Public key encryption

Question 10

HOW DOES SYMMETRICAL KEY ENCRYPTION WORK?

Answer 10

Uses same key at both ends of the process - same key is used to encrypt and decrypt.