UNIT 26:Design a small or home office network


Unit 26:Design a Small or Home Office Network







Unit code:Y/601/0448

QCF Level 4:BTEC Higher National

Credit value:15






Aim

To provide learners with opportunities to design, implement, manage and support a small or home office network as a standalone system or as part of a larger remote infrastructure.


Unit abstract

IT utilisation has evolved rapidly since the initial personal internet boom of the late 1990s with the majority of private homes and small organisations now having megabit capable bandwidth and an extensive range of devices able to connect to the Internet.

For many home and commercial users of the internet, the design of a system could be an ad hoc affair, with many high-street retailers offering ‘out-of-the-box’ solutions. Whilst this solution will suit the lower capacity user, many discover the limitations of security, scale and device interaction offered.

Learners taking this unit will explore how private homes and small organisations, as well as branches of larger enterprises can create a system that will scale according to demand. Learners will also have the opportunity to consider how they may design and deploy a system with the potential to adapt to technological change as well as user preference.

There is no restriction on the type of system or devices that may be incorporated into the learning behind this unit. The technological aspect ranges from games consoles through to mobile devices as well as systems with only two or three users up to a system that may have to support at least 50 users or devices.


Learning outcomes

On successful completion of this unit a learner will:

1     Understand the impact of small or home office networks

2     Be able to design small or home office networks

3     Be able to implement small or home office networks

4     Be able to support small or home office networks.



Unit content




1     Understand the impact of small or home office networks

Mobility: device participation, range of devices on system

Capacity: constraints eg bandwidth to internet; local internet contention ratio; internal network bandwidth; internal network contention ratio; bandwidth requirements (applications; users; devices)

Devices: types eg phones, handheld consoles, Personal Digital Assistants (PDA), laptops, games consoles, workstations, printers, network drives, media centres

Usage: activities eg entertainment, gaming, social networking, video streaming; users eg commercial, personal, home working

Security: methods eg address allocation, local Demilitarized Zone (DMZ), Network Address Translation (NAT) address mapping, wireless encryption, Virtual Private Network (VPN) to central employer/commercial location, device security, firewall

Communications: connections eg wireless, wired, Ethernet over power, 3G, Bluetooth, broadband, Asymmetric Digital Subscriber Line (ADSL)

Impacts: social practice eg working patterns, social engagement, user expectations, entertainment, sharing of resource, use of technology


2     Be able to design small or home office networks

Devices: number of connected devices; anticipated participation

Bandwidth: average load; peak load; local Internet availability; cost constraint

Users: quality expectations; concept of system growth

Applications: requirements eg security, quality of service

Communications: considerations eg suited to devices, suited to users, lifestyle preferences, commercial requirements

Scalable: considerations eg supporting device growth, supporting additional devices, bandwidth use trend change

Security: considerations eg addressing policy, device participation, firewall rules, encryption preference


3     Be able to implement small or home office networks

Devices: installation eg communication device, allocation of addresses, local client configuration

Connectivity: setup eg communication medium, external network, internet connection

Testing: internet access; security; bandwidth; documentation eg comparison charts, performance graphs









4     Be able to support small or home office networks

User access: requirements eg applications, devices, bandwidth

Maintenance: monitoring eg security, utilisation, bandwidth needs, user productivity

Future improvements: upgrades eg adding devices, removing devices, upgrade bandwidth, additional communications devices; maintenance schedule eg backups, upgrades, security, auditing



Learning outcomes and assessment criteria



Learning outcomes

On successful completion of this unit a learner will:



Assessment criteria for pass

The learner can:



LO1

Understand the impact of small or home office networks


1.1 evaluate the usage and impact of current small or home office networks



LO2

Be able to design small or home office networks

2.1 design a small or home office network solution to meet a given specification

2.2 evaluate the design and analyse user feedback


LO3

Be able to implement small or home office networks


3.1 implement a small or home office network solution based on a prepared design

3.2 test the small or home office network solution to meet user requirements

3.3 document and analyse test results against expected results



LO4

Be able to support small or home office networks


4.1 discuss future improvements for the small or home office network

4.2 design a maintenance schedule to support a small or home office network.








Guidance




Links to National Occupational Standards, other BTEC units, other BTEC qualifications and other relevant units and qualifications

The learning outcomes associated with this unit are closely linked with:



Level 3


Level 4


Level 5


Unit 5: Managing Networks



Unit 2: Computer Systems


Unit 36: Internet Server Management




Unit 9: Computer Networks


Unit 24: Networking Technologies

Unit 43: Networking Infrastructure


Unit 10: Communication Technologies


Unit 25: Routing Concepts


Unit 44: Local Area Networking Technologies


Unit 32: Networked Systems Security

Unit 27: Network Operating Systems

Unit 45: Wide Area Networking Technologies




Unit 28: IT Support for End Users


Unit 46: Network Security






This unit has links to the Level 4 and Level 5 National Occupational Standards for IT and Telecoms Professionals, particularly the areas of competence of:

•     IT/Technology Infrastructure Design and Planning •      Systems Development


Essential requirements

Learners must have access to a live or ‘detached’ network environment to create the network infrastructure and develop their skills, this may be successfully accomplished using virtual machines.

Learners must have access to facilities which allow them the opportunity to fully evidence all of the criteria of the unit. If this cannot be guaranteed then centres should not attempt to deliver this unit.

Evaluation of current systems and solutions, commercial practices, social conditions and the culture surrounding the system in use is of as much importance as delivering work supporting potential understanding of the technological systems the and the services they offer.

If your centre is using a real network to base the design upon, you must consider the legal implications of how this may affect the owners of the real network, as well as for the learner and the academic centre.

Implementation of the SOHO solution must be tested systematically and procedurally based on the technology used in the design solution.




Resources

Books

Moulton P Soho Networking: A Guide to Installing a Small Office/Home Network (Prentice Hall, 2002) ISBN-10: 0130473316

Reed A, Lorenz J Networking for Home and Small Businesses, CCNA Discovery Learning Guide (Cisco Press, 2007) ISBN-10: 1587132095


Employer engagement and vocational contexts

Working with a live system will present many risks that the centre, employer and learner must be aware of. Using a current vocational context to deploy an additional or alternate solution will enhance the learner’s experience and enable understanding of wider technical application.















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