1 - Assignment Question:
People often misuse ICT terminology. Imagine you receive the following email:
Dear Helpdesk
My hard drive took ages to boot-up this morning and now my Internet has stopped working and I can't print anything. Help!
Frustrated User.
What terminology mistakes has the user made? What terminology should they have used?
2 - Assignment Question:
An office LAN has ten workstations. The office manager has asked you to replace their 100Mbps wired switch with a wireless access point (AP) capable of 300Mbps. Will this increase or decrease the bandwidth available to each workstation? Explain your reasoning by including estimates of effective bandwidth for each case.
3 - Assignment Question:
CSMA/CD on a physical bus and CSMA/CA over Wi-Fi operate in a very similar way and do very similar things. However, how do they operate differently in the case of three devices wanting to transmit simultaneously?
4 - Assignment Question:
Danny's Dinosaurs is an adventure park celebrating around all things Jurassic. The park consists of a number of buildings spread over sprawling parkland. The new pterodactyl enclosure has been built some 200 meters from the main exhibit building. You need to connect the IDF in the pterodactyl enclosure to the MDF in the main building. Explain two reasons why UTP would not be an appropriate backbone medium.
5 - Assignment Question:
Complete the following table by nominating the network layer name and the protocol associated with the following tasks:
1. Ensures that the information sent by the web server reaches your browser
2. Routes messages between your PC and the server over the Internet
3. Allows the web browser software and the web server software to understand the messages sent between them
4. Encapsulates data in frames
6 - Assignment Question:
Explain how it is that IPv4 and IPv6 can co-exist on the same networks and describe two technologies that enable this.
7 - Assignment Question:
A switching table below has the following entries:
|
MAC Address
|
Port #
|
|
00-25-2A-00-00-01
|
4
|
|
00-25-2A-00-10-FC
|
1
|
|
00-25-2A-00-00-2B
|
2
|
|
00-25-2A-00-11-21
|
3
|
Port 3 is connected to a hub.
The following events occur:
1. The entry for 00-25-2A-00-10-FC expires.
2. An addition device (00-25-2A-00-10-00) is connected to the hub on port 3.
3. A new virtualised machine (00-25-2A-00-10-0C) is started on the server connected to port 2
4. Device (00-25-2A-00-10-00) is disconnected from the hub on port 3 and connected to port 5.
Draw the switching table at the end of this event. The order of entries is unimportant:
8 - Assignment Question:
Meanwhile, at Danny's Dinosaurs, things are not going very well. Danny downloaded a game from the Internet, but the game wasn't all it appeared to be. When he ran it, the program actually opened the doors to the velociraptor cage, freeing them into the park full of tourists: it all became very messy. What type of malware caused Danny the problem? What are defenses against this type of malware?
9 - Assignment Question:
Danny's Dinosaurs is in crisis. The recent escape of the velociraptors had a negative impact on the business - moreover they ate all the IT staff. Danny can't afford to replace the IT staff, so he is considering cloud computing solutions. Contrast SaaS and IaaS and explain which one is more suitable for Danny's situation.
10 - Assignment Question:
Organisations have a number of options when it comes to centralised storage. If an organisation needs to have high speed access to sensitive data, contrast two solutions that address these needs.