As the 2020 election cycle ramps up, voters can expect a flurry of targeted advertisements fueled by big data on their doorsteps, inboxes and social media feeds. While microtargeting based on demographic information is not a new trend in campaign strategy, campaigns traditionally relied on analyzing voter behavior within broader categories such as age or gender before big data was easily accessible.
Describe the public key encryption data security technique
a. The following are devices commonly used in setting up a network; shielded twisted pair (UTP)
cables, network interface card (NIC), hubs repeaters, bridges, switches, routers and access point.
Sketch a network diagram that makes use of all the devices. Briefly explain the function of each
and at what layer of the open systems interconnection (OSI) reference model each device
functions. (10 Marks)
b. Give an overview of the distance vector method of updating routing table information. In
particular explain using an example how information about a node failure propagates using this
algorithms. (6 Marks)
c. Describe the following terms as used in data flow control. (4 Marks)
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