Which of the following statements about Big Data are true? Select ALL that apply.
Big Data requires large volumes and computing power. Not all datasets qualify as Big Data. It is used across various departments, and computers analyze it, not just humans.
Fluffy Pillows Ltd has recently expanded its operations and has hired more staff. These staff will work remotely and because of this Fluffy Pillows Ltd is in need of buying and upgrading their IT systems. The CEO of Fluffy Pillows is examining the security of currently held data in preparation for the expansion and has recently completed a document which looks into what data is stored where and what the consequences would be if this data were to be stolen or corrupted. In his research he has found multiple data entries for the same information, which he believes could lead to inaccuracies in data reporting. He is also concerned that the data isn't being stored securely and is unsure whether he should retain some of the confidential personal details on employees who have left the business. He has decided that along with the introduction of new systems it is important that all members of staff at Fluffy Pillows are aware of the responsibilities of storing data correctly and the risks of cyber attacks.
What should the CEO do with his wider team?
All staff should get Cyber Security Training. This relates to the last sentence in the case study, which talks about ensuring people store data correctly and know about cyber attacks.
A person who enters into another person's computer via illegal means for personal gain, for example to steal data which will benefit them personally, is known as what?
This is a black hat hacker. The colour of hat the hacker wears describes their motivation. Black is bad, white is good and grey means they're hacking on behalf of a government. Black swan is about finding patterns in data that don't exist and came up in an earlier chapter. Black-hat hacking is from p.147. I don't think hackers are obliged to wear hats, it's probably just a metaphor, but I've never met one to ask.
Domain: 3.1
Which of the following is a type of firewall?
A proxy is a type of firewall. It works at the IT application level rather than on a whole network. A firewall is a security measure that prevents unauthorized access to a system. P.184
Domain: 3.2
What are the three size characteristics of 'Big Data'? Select THREE.
The Three Vs of Big Data are:
Volume = Large size
Variety = Different data types (text, images, etc.)
Velocity = The speed at which data is generated
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