Cyber Security Revision Questions by Karen Hunsdale https://padlet.com/karen_hunsdale/cybersecurityqs Please contribute by either adding questions and providing answers! en-us 2019-03-28 16:05:11 UTC 2019-04-12 05:24:23 UTC hello@padlet.com Question 1 karen_hunsdale https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346218888  
Which Layers Perform Error Detection and Recovery Functions?  (2 marks)

]]> 2019-03-28 16:05:52 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346218888 Question 3 karen_hunsdale https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346450650 What are ports]]> 2019-03-29 08:42:04 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346450650 Answer to Q3 karen_hunsdale https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346451066 Ports are end-points for different services over the Internet. ie. HTTP will use port 80 as its end-pointfrom server]]> 2019-03-29 08:43:35 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/346451066 Question 4 - Unit 2 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347243787 Give two examples of software used within the  OSI model, and the layers they belong to. (4 Marks)]]> 2019-04-01 15:44:43 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347243787 Question 7 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347245806 In your opinion, what do you think is the most severe threat to cyber security? Give details. 6 marks]]> 2019-04-01 15:47:11 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347245806 Model Answer https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347246390 In my opinion, I believe that users are the most severe threat to cyber security. Take for example 'The Insider', a type of person that is essentially a hacker that doesn't even need to break in because they are already in the system, and thus can cause major damage. They may leak sensitive data and can be very costly. If motivated by revenge 

Also consider that users may unwittingly be involved in malicious conduct, such as clicking on a link in a phishing email that contains malware.

Users who lack common sense may also be destructive; consider a user who deletes files accidentally and the files are not recoverable!]]> 2019-04-01 15:48:07 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347246390 5 different commands you can use on Linux? https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347246890 1.  ls = Lists files in a folder
2. cd = change directory
3. mkdir = make a directory
4. rmdir = remove a directory
5. pwd = print working directory]]> 2019-04-01 15:48:58 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347246890 Question 6 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347247346 Give three examples of Hardware used within the OSI model, and the layers they belong to. (6 Marks)]]> 2019-04-01 15:49:43 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347247346 Answer 4 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347247908  
Answers:
1) Chrome - Application
2) Anti-Virus - Transport 
]]> 2019-04-01 15:50:41 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347247908 5.What device does google monitor less than any other https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347248029 2019-04-01 15:50:52 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347248029 Answer 6 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347248801 1. A Hub - Physical
2. A Modem - Data-Link
3. A Brouter - Network]]> 2019-04-01 15:52:09 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347248801 Answer 1 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347249225  
The Data Link layer performs error detection on incoming packets. Networks often use cyclic redundancy check (CRC) algorithms to find corrupted data at this level.
The Transport layer handles error recovery. It ultimately ensures data are received in order and free of corruption. 

]]> 2019-04-01 15:52:51 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347249225 who is most likely to get court by the police in cyber gangs https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347251634 2019-04-01 15:56:28 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347251634 https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347599069 The Getaway]]> 2019-04-02 13:03:24 UTC https://padlet.com/karen_hunsdale/cybersecurityqs/wish/347599069