ICTNWK404 - Install, Operate and Troubleshoot a Small Enterprise Branch Network - IT Assignment Help

Assignment Task:

Task:

Part 1: Short answer questions
Complete all of the following short answer questions using the space provided.

Question 1
The diagram on the following page (Figure 1) shows a network with various network elements.
Please identify all the network elements and put them into one of the following three categories.

Category Network elements
Network Media
Intermediary Devices
End Devices

Question 2
You are about to send an email from your PC to another friend.
Use the OSI and TCP/IP models to explain in each layer how this email flows in a network.
Hint: You may refer to the layers of the model as follows:
 Application Layers may be treated as a group (Application = Application / Presentation / Session)
 Transport
 Internet = Network
 Network Interface Layers may be treated as a group (Network Interface = Data Link /
Physical)

Application

Transport

Internet

Network Interface Layers

Question 3
The following table lists five protocols from the OSI and TCP/IP models. Please define the purpose and describe the basic operation of each protocol.

Protocols Purpose Basic operation
DNS

DHCP

FTP

HTTP

ARP

Question 4
You work as an IT Support Officer. A customer has called you complaining that their webpages are no longer loading in the web browser.

You have decided to troubleshoot this situation and have found the following network symptoms:
A. When browsing to a particular website a message is displayed indicating that the site may not be secure (Layer 7)
B. Computer shows as being connected to the network but cannot access the internet (Layer 3)
C. There is no link light on the Ethernet NIC (Layer 2)
D. Windows system tray network icon shows as not connected (Layer 1)
In the table below each of these symptom has been linked to a particular OSI Layer.
You now need to identify what could be potential network problems at that layer. Include at least 2 possible problems for each network symptom.

OSI Layer Network
symptom

Network problem

Layer 7 Application A

Layer 3 Network B

Layer 2 Data Link C

Layer 1 Physical D

Question 5
As a Network Consultant, you have been asked to configure a home office network for a customer. The Home office network consists of two desktops, two laptops and one printer.

The network adapter specification for each device is as follows:
 Network Adapter in desktop supports only IEEE 802.3 standard
 Network Adapter in laptop supports only IEEE 802.11ac standard
 The printer specification manual notes it supports both IEEE802.3 and IEEE802.11ac.
The customer also requires access to the Internet via ADSL2.
You now need to research and select a basic router to meet the above requirements.
In the table below include the full name of your chosen router and list the relevant specification. You also need to explain to the customer your reasons for choosing this router.

Chosen router
Router
specification

Technical
justifications

Communication
with customer
would include

Question 6
Previously you have successfully installed your customer’s home office network in their home. The customer was very satisfied with your support.
Now two months later, the customer has moved from their home office to a new office in town and found the new office building requires connection to a WAN.
Identify and research two different methods of connecting to a WAN and explain the key features of them to the customer. (For example: NBN, DSL, Cable, Fibre, Mobile)

WAN connection method

Key features

Question 7
Summarise 3 important factors you should consider when designing and developing an internet protocol (IP) addressing scheme?
Provide your answers in the following table.

Point Number Considerations
Consideration 1

Consideration 2

Consideration 3

Question 8
Describe an important factor related to each of installation, configuration, and testing you should consider for routers and switches to ensure proper interoperability within a network system.
Provide your answers in the following table.

Device Factor Consideration for Proper Interoperability
Routers Installation

Configuratio n

Testing

Switches Installation
Question 9
Explain how applying different network topologies could have an impact on the security of a network. Consider the impact of using a “star” topology versus a “bus” topology.

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