a) Ransomware has affected several large institutions in the past year.

Question

Your manager is a computer novice and is concerned with the threat ransomware poses.
Write a report for your manager describing:

• what ransomware is;

• how it spreads;

• why it is a threat to the business;

• what you have done to prevent a ransomware attack;

• what measures are in place to mitigate damage to equipment, data and reputation in the event of ransomware being discovered on your network. (10 marks)

b) Expand the following in the context of mobile/cell phone operation:

i) GSM;

ii) EDGE;

iii) 4G;

iv) WAP;

v) HSPA.

c) The department of Life Sciences at the University of Sarre requires an ‘environment monitoring station’ to remotely and automatically obtain outside environmental data every 90 minutes in a 48 hour period. The environment being monitored is within a large, open field. The environmental data required includes ground moisture, current temperature and wind data which is to be sent to a mobile/cell phone application for dissemination.

You have been given the following hardware components (see bulleted list below), but it has been left up to you to decide the networking and data-interchange technology.

• Micro-computer (like a Raspberry Pi) with 8 USB 2.0 ports.

• External battery pack with a 25000mAh capacity.

• USB wind, moisture and temperature probes.

• A plastic weatherproof box to protect the electrical components.

At present, the device needs to send data back to the mobile/cell phone at a radius of around 50-75 metres.

Discuss, justify and critique the networking and data-interchange technologies you would utilise to satisfy the requirements set out above. Explain any assumptions you have made. You may draw diagrams to illustrate any point you are making.

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