Hemis tasks tasks 4: score -5 unit 8: security and safety lesson 21. Computer threats. It security and safety. Task 1

HEMIS TASKS
TASKS 4:
SCORE -5
UNIT 8:SECURITY AND SAFETY


Lesson 21. Computer threats . IT security and safety.


Task 1. Solve the clues and complete the puzzle.

1. 
   Users have to enter a password_________ to gain access to a network.
   
2. 
   A _____firewalls_____ protects a company intranet from outside attackers.
   
3. 
   A __hackers________ is a person who uses their computer skills to enter computers and networks illegally.
   
4. 
   _______viruse____ can infect your files and corrupt your hard drive.
   
5. 
   You can download ____freeware______ from the Net; this type of software is available free of charge but protected by copyright.
   
6. 
   Encoding data so that unauthorized users can’t read it is known as __encryption_______ .
   
7. 
   This company uses __description_______ techniques to decode( or decipher) secret data.
   
8. 
   Most _______spyware______ is designed to obtain personal information without the user’s permission.
   

Lesson 22. Health and safety.Computer ergonomics

Task 1. Complete the sentences with the correct infinitive or -ing form of the verbs in brackets.

When I go shopping for clothes, I spend time 1………Thinking……… (think) about what I’m going to buy. I usually can’t afford 2…to buy…………………….. (buy) the brands I really like. If I spend all my money on one piece of clothing, I end up 3……regreting………………….. (regret) it. However, if I really like something, I do occasionally decide 4……to do………………….. (do) that. I enjoy 5…looking…………………….. (look) around the shops for cheaper clothes and I always ask the shop assistants 6………give……………….. (give) me a discount. They usually refuse 7………to offer……………….. (offer) me one, but occasionally I’m lucky and I manage 8…………………to get …….. (get) one!