0478 5.0 Review

Match the type of malware to its description

• Self-replicates and damages a system

• Spyware

• Will encrypt a system until the user pays to unlock it

• Worm

• Will record user activity, such as keystrokes, and send them back to the hacker

• Trojan Horse

• infects a large number of systems via a network

• Ransomware

• Malware code is hidden inside an otherwise legitimate application

• Virus

What are the signs that an email is likely to be a phishing attack?

• Inconsistent or unusual grammar and tone

• Email originates from an unofficial domain

• The email arrived at an unusual time of day such as very early morning

• Links in the email do not go to an official domain

A ​ (a)   attack may involve repeatedly trying to guess a password using a large range of possibilities. On the other hand, ​ (b)   relies on tricks and manipulation of people to gain access to a system.

• brute force
• social engineering
• malware
• phishing

Which technology can be used to ensure the security of digital currency?

• Fetch-Execute Cycle

• Blockchain

• Machine Learning

• Artificial Intelligence

Cookies can be used for...

• Storing usernames and passwords

• Remembering customisation preferences

• Storing items in a shopping basket

• Remembering the IP addresses of popular websites

What does HTML look like?

• x = 2

  y = 3

  z = x + y

• int myVar;

  myVar = 7;

• LDD 45

  INC ACC

  STO 153

• <p>Hello World</p>

Web pages are stored on ​ (a)   . To access a web server, the web browser must know the ​ (b)   of the server. These are hard to remember. Instead, the user types a ​ (c)   into the address bar of their browser. This is then sent to a ​ (d)   which responds with the IP address of the web server. The web browser and web server then use ​ (e)   to communicate. The web server sends the page to the browser to display.

• web servers
• IP address
• URL
• DNS server
• HTTP
• MAC address
• File Server
• HTML
• TCP
• the internet

What is the difference between the internet and the world wide web?

In your answer, include an example of one activity which requires the internet but not the world wide web, and one activity which requires the world wide web.