CITEMS is a leading ICT consultancy, providing services exclusively to the Education sector The projects with a clientele usually last for several months at a time Last month, CITEMS has won the contract to overhaul the network infrastructure for SMTAFE They have three campuses one at Murdoch, one at Rockingham and the other at Thornlie They will require a comprehensive network design to meet the growing requirements of SMTAFE You are an employee of CITEMS and have been assigned to oversee the project Your task will be to see through the whole project This will include design of the network providing topology diagram, IP addressing, selecting, configuring and implementation of a physical and wireless network, fault finding and finalise documentation Note Murdoch campus will be connected to other campuses via WAN connection All three campuses will have admin, student, guest and staff network At this stage, SMTAFE has decided to provide limited Wi Fi access to one floor to test feasibility and limitations One of the requirement of this project will be to provide coverage map in your floor area and the corridor to provide supporting evidence of this test They have decided to use an industrial AP with an external Yagi antenna In this task you will select, configure and investigate performance of both wired and wireless network You will investigate both new technologies to implement, trouble shooting techniques and required documentation to industry standards SMTAFE Network requirements Student, Admin, Guest and Staff network traffic must have appropriate security measures and performance Network traffic must be contained for each network Wireless network must have appropriate coverage and security Q1 When designing an overhaul to the SMTAFE network infrastructure, one of your responsibility is to work out the network setup and a suitable IP Addressing scheme Explain how SMTAFE's business function can relate to the way networks and VLANs are designed b) What features of SMTAFE's business domain may have an impact on any decision making when designing IP subnets Response Q2 You are investigating protocols and services for your design Data and voice packets both require transport layer services Explain how data and voice services use different transport layer protocols (TCP and UDP) and why Response Q3 As a network administrator, you must be able to use the IPv4 addressing space effectively a) Summarise what information about the network you must consider when designing an IP Addressing scheme for a network b) You are given the following host requirements for your design As part of initial design of addressing, divide the following IP network address (10 100 128 0 18) into 6 separate Ipv4 subnets Identify the network addresses for each network campus Number of Hosts Network Address 1000 (Thornlie) 1000 (Murdoch) 1000 (Rockingham) 500 (Admin) 2 (WAN link) 2 (WAN link) Response Q4 An internal network technician forSMTAFE identified during the testing phase while investigating why a replacement computer could not be connected to a network using the same switch port as the original PC During the troubleshooting process,the technician reconnects the original PC and discovers that it can still connect to the network Using that switch port The assumption is that a problem exists on the switch Explain a security feature on a switch port that could potentially prevent a new PC from being able to connect to a network b) Recommend a procedure to allow the registration of a new PC on a switch port Response Q5 As a Network technician working for CITEMS, it is important to manage and administer a network effectively IP addressing must be designed efficiently for the entire network which will support scalability Explain the functions of dynamic host configuration protocol (DHCP) b) Explain how a DHCP server can be used provide a host with an IP address Response Q6 As a network administrator for CITEMS, you must have a good understanding of the network protocols and their inherent security features You are trying to choose a set of protocols for SMTAFE that will make their network secure and reliable You also need a plan to fault find their network functionality using the TCP IP model List at least three common protocols used for each of the layers of the TCP IP model List a security feature for each these protocols c) List a set of commands that can be used to fault find a network for each of the layers of the TCP IP model Response Q7 During testing process forSMTAFE network, you received a complaint from HR department that they are unable to access the Internet However, the internet connectivity in other departments is fine What all troubleshooting steps would you take to identify the problem Provide these steps in a sequence where possible Response Q8 InSMTAFE network, when sending an email from a PC, explain what happens to data packets at each layer of the OSI model You must explain how data is encapsulated at each layer Response Q9 For your design of SMTAFE network,describe the typical network architecture they could use when connecting all campuses to each other with Murdoch being identified as the Head campus or Headquarters (HQ), with the other campuses being identified as branch campuses Consider that the branch network is accessing all the services from HQ including DHCP and Web services a) Sketch a topology diagram that shows the networking components and how they are connected You may use Cisco Packet Tracer or Visio and take screen shots b) What protocols standards will be used in each part of the architecture Response Q10 Your team is discussing setting up NAT forSMTAFE Briefly describe the function of NAT and how it will impact their network Response Q11 As mentioned earlier in Question 6, when managing networks and troubleshooting network problems you must rely on a good knowledge of the networking protocols You also want to decide on operating system for implementation in SMTAFE a) Discuss three industry standard networking protocols that you have listed in Question 6 Describe briefly two common industry standard operating systems that you will implement for SMTAFE Response Q12 As part ofSMTAFE's security strategy,you need to identify and briefly explain 2 items for each of the following in how they can help protect SMTAFE from common security threats Security Protocols (e g Wireless Encryption Authentication) Standards (e g ISO IEC) Data Encryption (e g DES AES) Response Q13 With references toSMTAFE network, developing an effective network security strategy is crucial when building an enterprise network List the essential steps involved in developing a security strategy Response Q14 With references toSMTAFE network design a) Briefly explain why an IT security audit is important b) How can an IDS help in IT security audits Response Q15 With references toSMTAFE network design a) Briefly explain at least three penetration testing techniques b) How can it help in IT security audits Response Q16 With references toSMTAFE network design being a Network Administrator you would like to ensure Quality of Service of the applications being used a) How would you manage QoS b) List three commonly used QoS tools Response Q17 With references toSMTAFE network, when managing wireless network, you must understand the characteristics of network traffic Briefly explain the following network traffic QoS characteristics relevant to a wireless network Bandwidth Delay Jitter Reliability Response Q18 With references toSMTAFE network design, wireless network signals can be affected by many factors and hence they can be difficult to implement fully Explain briefly, at least four environmental factors affecting wireless signals Response Q19 With references toSMTAFE network design to industry standard, wireless topologies under IEEE 802 11 needs to be investigated Discuss briefly whatthese topologies (listed below) are, and how they could be applied in the workplace IBSS, BSS, ESS Response Q20 With references toSMTAFE network design, briefly explain the difference between wireless topologies that are suitable for a SOHO and for an enterprise LAN Response Q21 Briefly explain the differences between TCP and UDP Give two examples of their use in your network design Response Q22 With references toSMTAFE network design, wireless protocols operate at Layer 2 and 3 of the OSI model They can be difficult to implement to provide full coverage and security Explain briefly at least three factors for each layer (2 and 3) that you must consider during the design process Response

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CITEMS is a leading ICT consultancy, providing services exclusively to the Education sector. The projects with a clientele usually last for several months at a

CITEMS is a leading ICT consultancy, providing services exclusively to the Education sector. The projects with a clientele usually last for several months at a time.

Last month, CITEMS has won the contract to overhaul the network infrastructure for SMTAFE. They have three campuses one at Murdoch, one at Rockingham and the other at Thornlie. They will require a comprehensive network design to meet the growing requirements of SMTAFE. You are an employee of CITEMS and have been assigned to oversee the project. Your task will be to see through the whole project. This will include design of the network providing topology diagram, IP addressing, selecting, configuring and implementation of a physical and wireless network, fault-finding and finalise documentation.

Note: Murdoch campus will be connected to other campuses via WAN connection. All three campuses will have admin, student, guest and staff network.

At this stage, SMTAFE has decided to provide limited Wi-Fi access to one floor to test feasibility and limitations. One of the requirement of this project will be to provide coverage map in your floor area and the corridor to provide supporting evidence of this test. They have decided to use an industrial AP with an external Yagi antenna.

In this task you will select, configure and investigate performance of both wired and wireless network. You will investigate both new technologies to implement, trouble-shooting techniques and required documentation to industry standards.

SMTAFE Network requirements:

Student, Admin, Guest and Staff network traffic must have appropriate security measures and performance. Network traffic must be contained for each network. Wireless network must have appropriate coverage and security.

When designing an overhaul to the SMTAFE network infrastructure, one of your responsibility is to work out the network setup and a suitable IP Addressing scheme.

Explain how SMTAFE's business function can relate to the way networks and VLANs are designed.

b) What features of SMTAFE's business domain may have an impact on any decision making when designing IP subnets?

Response:

You are investigating protocols and services for your design. Data and voice packets both require transport layer services.

Explain how data and voice services use different transport layer protocols (TCP and UDP) and why.

Response:

As a network administrator, you must be able to use the IPv4 addressing space effectively.

a) Summarise what information about the network you must consider when designing an IP Addressing scheme for a network.

b) You are given the following host requirements for your design. As part of initial design of addressing, divide the following IP network address (10.100.128.0/18) into 6 separate Ipv4 subnets.Identify the network addresses for each network/campus.

Number of Hosts	Network Address
1000 (Thornlie)
1000 (Murdoch)
1000 (Rockingham)
500 (Admin)
2 (WAN link)
2 (WAN link)

Response:

An internal network technician forSMTAFE identified during the testing phase while investigating why a replacement computer could not be connected to a network using the same switch port as the original PC.

During the troubleshooting process,the technician reconnects the original PC and discovers that it can still connect to the network. Using that switch port.

The assumption is that a problem exists on the switch.

Explain a security feature on a switch port that could potentially prevent a new PC from being able to connect to a network.

b) Recommend a procedure to allow the registration of a new PC on a switch port.

Response:

As a Network technician working for CITEMS, it is important to manage and administer a network effectively. IP addressing must be designed efficiently for the entire network which will support scalability.

Explain the functions of dynamic host configuration protocol (DHCP).

b) Explain how a DHCP server can be used provide a host with an IP address.

Response:

As a network administrator for CITEMS, you must have a good understanding of the network protocols and their inherent security features. You are trying to choose a set of protocols for SMTAFE that will make their network secure and reliable. You also need a plan to fault find their network functionality using the TCP/IP model.

List at least three common protocols used for each of the layers of the TCP/IP model.
List a security feature for each these protocols.

c) List a set of commands that can be used to fault find a network for each of the layers of the TCP/IP model.

Response:

During testing process forSMTAFE network, you received a complaint from HR department that they are unable to access the Internet. However, the internet connectivity in other departments is fine.

What all troubleshooting steps would you take to identify the problem? Provide these steps in a sequence where possible.

Response:

InSMTAFE network, when sending an email from a PC, explain what happens to data packets at each layer of the OSI model. You must explain how data is encapsulated at each layer.

Response:

For your design of SMTAFE network,describe the typical network architecture they could use when connecting all campuses to each other with Murdoch being identified as the Head campus or Headquarters (HQ), with the other campuses being identified as branch campuses. Consider that the branch network is accessing all the services from HQ including DHCP and Web services.

a) Sketch a topology diagram that shows the networking components and how they are connected. You may use Cisco Packet Tracer or Visio and take screen shots.

b) What protocols/standards will be used in each part of the architecture.

Response:

Q10

Your team is discussing setting up NAT forSMTAFE. Briefly describe the function of NAT and how it will impact their network.

Response:

Q11

As mentioned earlier in Question 6, when managing networks and troubleshooting network problems you must rely on a good knowledge of the networking protocols. You also want to decide on operating system for implementation in SMTAFE.

a) Discuss three industry standard networking protocols that you have listed in Question 6.

Describe briefly two common industry standard operating systems that you will implement for SMTAFE.

Response:

Q12

As part ofSMTAFE's security strategy,you need to identify and briefly explain 2 items for each of the following in how they can help protect SMTAFE from common security threats:

Security Protocols (e.g. Wireless/Encryption/Authentication)
Standards (e.g. ISO/IEC)
Data Encryption (e.g. DES/AES)

Response:

Q13

With references toSMTAFE network, developing an effective network security strategy is crucial when building an enterprise network. List the essential steps involved in developing a security strategy.

Response:

Q14

With references toSMTAFE network design

a) Briefly explain why an IT security audit is important.

b) How can an IDS help in IT security audits?

Response:

Q15

With references toSMTAFE network design:

a) Briefly explain at least three penetration testing techniques.

b) How can it help in IT security audits?

Response:

Q16

With references toSMTAFE network design being a Network Administrator you would like to ensure Quality of Service of the applications being used.

a) How would you manage QoS?

b) List three commonly used QoS tools.

Response:

Q17

With references toSMTAFE network, when managing wireless network, you must understand the characteristics of network traffic. Briefly explain the following network traffic QoS characteristics relevant to a wireless network:

Bandwidth
Delay
Jitter
Reliability

Response:

Q18

With references toSMTAFE network design, wireless network signals can be affected by many factors and hence they can be difficult to implement fully. Explain briefly, at least four environmental factors affecting wireless signals.

Response:

Q19

With references toSMTAFE network design to industry standard, wireless topologies under IEEE 802.11 needs to be investigated. Discuss briefly whatthese topologies (listed below) are, and how they could be applied in the workplace:

IBSS,
BSS,
ESS

Response:

Q20

With references toSMTAFE network design, briefly explain the difference between wireless topologies that are suitable for a SOHO and for an enterprise LAN?

Response:

Q21

Briefly explain the differences between TCP and UDP. Give two examples of their use in your network design.

Response:

Q22

With references toSMTAFE network design, wireless protocols operate at Layer 2 and 3 of the OSI model. They can be difficult to implement to provide full coverage and security.

Explain briefly at least three factors for each layer (2 and 3) that you must consider during the design process.

Response: