I need help with $1$C$,2,$ and $3.$ For $3,$ please give me like $2$ advantages and $2$ disadvantages. EXAM PRACTICE QUESTIONS

Paper $1($core$)$

On $23$ December $2011,$ an e$-$card with the subject 'Merry Christmas!$\text{'}$ was supposedly sent by the US President's office $($from 'jeff.jones@whitehouse.org'$)$ to a massive number of recipients. Recipients who clicked to download and open the card $($a zip file$)$ saw an animated Christmas tree while a trojan virus accessed their saved documents and passwords, and uploaded them to a server in Belarus.

$1$ a Identify two common file types for animated images.

$[2$ marks$]$

b Outline two precautions to prevent falling victim to an email$-$based scam.

c Outline two characteristics of a $\text{'}.$zip file'.

$[2$ marks$]$

$[2$ marks$]$

$2$ Outline four steps in the process of how victims opening the e$-$card resulted in their files being uploaded to servers in Belarus.

$[4$ marks$]$

$3$ In response to the news about the e$-$card trojan virus, some employees decided to search for, download and install FREE email protection software for their work computers instead of waiting for instructions from their employer. Evaluate this decision.

$[8$ marks$]$

a$)$ GIF and JPEG