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OCR ICT unit 1 > Utility Software > Flashcards

Flashcards in Utility Software Deck (18)
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1
Q

What is a firewall?

A

Software or hardware which filters information between the user’s computer and an external network

2
Q

What tasks are carried out by a firewall?

A
  • Log all data traffic

- Block Ip addresses and incoming data that doesnt match criteria

3
Q

How can firewalls be worked around?

A

Employee misconduct

Firewall can be disabled

4
Q

How does SSL work?

A

The web server sends its SSL certificate to be authenticated by the web browser to decided whether a secure two way connection can be established

5
Q

What is TLS?

A

Transport Layer Security is a more effective SSL

6
Q

What are the two layers of TLS?

A

Record and handshake protocol

7
Q

What is the TLS record protocol?

A

contains the data being transferred over the Internet

8
Q

What is the TLS handshake protocol?

A
  • permits the website and the user to authenticate each other
9
Q

What are the differences between TSL and SSL?

A
  • TLS can have new authentication methods

- TLS separates the handshake and record protocol

10
Q

What is a message called before encryption?

A

plain text

11
Q

What is a message called after encryption

A

Cypher script

12
Q

What is a cache?

A

Processed data kept on hand and reused to avoid costly repeated database queries

13
Q

How are emails made more secure?

A

Sent with a digital certificate so the receiver can verify it

14
Q

What are normal backups?

A

All files are backed up and a archive bit is reset

15
Q

What are copy backups?

A

All files are backed up, but the archive bit isnt reset

16
Q

What are daily backups?

A

Only backs up filed modified that day

17
Q

What are incremental backups?

A

Only backs up files modified since your last backup

18
Q

What routine fixes dampen the computer slowing down?

A
  • Archiving old files

- deleting temporary files