B2 - Networks Flashcards
Benefits of a Local Area Network (LAN)
- Can share peripherals e.g., printers (1) which reduces purchase costs/better for the environment (1)
- Can share files / software applications between devices (1) without the need to use โexternalโ methods e.g., email / external storage devices (1)
- Improved security (1) because it is centralised (1)
- Can connect mobile devices to the internet via the LAN (1) reducing the need for cellular data (1)
Factors of installing a new network
(๐๐ฌ๐๐ซ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ / ๐๐๐๐๐ฌ)
User Experience / Needs
Will the choice of network:
- Require additional training for users? Can additional training be provided in house, or will they need to use an outside training agency. Does the software come with adequate user guides so users may be able to โteachโ themselves?
- Incorporate the same functionality as a minimum?
- Incorporate the same accessibility features to suit the particular needs of individuals in the shop (may have to be considered)
Factors of installing a new network
(๐๐จ๐ฆ๐ฉ๐๐ญ๐ข๐๐ข๐ฅ๐ข๐ญ๐ฒ)
Will the network be compatible with:
โซ Current hardware used by the organisation. There may be computers of different specifications/ages in use. They must make sure the new operating software will be compatible with the hardware. They will have to consider the implications of replacing / upgrading those computers where the OS is not compatible.
Factors of installing a new network
(๐๐ฆ๐ฉ๐ฅ๐๐ฆ๐๐ง๐ญ๐๐ญ๐ข๐จ๐ง ๐ญ๐ข๐ฆ๐๐ฌ๐๐๐ฅ๐)
- Who will carry out the implementation?
- Is there the technical knowledge within the current setup
- will there be a need to employ an outside agency? There could be security issues if the outside agency is used as customerโs data are likely to be held e.g. Setting up files / user accounts
Factors of installing a new network
(๐ญ๐ข๐ฆ๐๐ฌ๐๐๐ฅ๐)
โซTiming โ this can be crucial because the training agency does not want customers to be unable to access courses/get support for long periods of time.
โซ Can the installation be scheduled for a time when the organisation is less busy?
โซ Is there a target completion date?
โซ If an external company is installing the network, is there a penalty if they do not complete on time?
Factors of installing a new network
(๐๐จ๐ฐ๐ง๐ญ๐ข๐ฆ๐)
โซ Amount of downtime โ the organisation will need to minimize the amount of downtime caused by the changeover.
โซ Direct change over could impact the agency if the new system does not work and the current system is obsolete
โซ Phased change over, staff could get used to the new system in phases
โซ Parallel change over, downtime would be held to a minimum with the current systems still running while the new ones are being implemented
Factors of installing a new network
(๐๐๐ฌ๐ญ๐ข๐ง๐ )
โซ Must ensure the new network will work with existing systems, has testing been planned thoroughly
โซ Will need to test prior to implementation
โซ Need to ensure new network will work with / be suitable for current IT needs
โซ Has the network been tested for: security / stability / compatibility with existing hardware or software
Factors of installing a new network
(๐๐ซ๐จ๐๐ฎ๐๐ญ๐ข๐ฏ๐ข๐ญ๐ฒ)
โซ Loss of productivity during implementation
โซ Improve productivity / efficiency with the new network system
Factors of installing a new network
(๐๐๐๐ฎ๐ซ๐ข๐ญ๐ฒ)
โซ Data during implementation
โซ Setting up new network
โซ Up-to-date security software
Factors of installing a new network
(๐๐จ๐ฌ๐ญ)
โซ Ongoing costs such as, total cost of ownership
Advantages of Pan
๐A faster connection speed via PAN connection (1) because fewer users sharing the bandwidth/connection (1)
๐Improved security (1) because it uses secure cellular data connection / train connection will be public/prone to vulnerabilities network (1)
๐Will be able to set system to download i.e. pay up front for cellular data (1) because she is unlikely to be able to download large files across a public / shared network (1)
Disadvantage of Pan
๐Cost implications of using cellular data (1) because she may run out of data & have to โtop upโ which can be expensive (1)
๐Uses cellular data allowance (1) which will use up data available for other activities (1)
๐Limited signal range (1) because she is confined to maximum 10 meters / if devices are further away from each other (1)
Steps to follow to access PAN
- Bluetooth
Turn on Bluetooth (1)
Allow new connections (1)
Need to search for/find the device/ network (1)
Pair devices/ enter code (1)
Would need to accept the pairing (1) - Wi-Fi
Need to turn on wireless (1)
Allow others to join/ share connection (1)
Need to search for/find the device/ network (1)
Need to tell the person the password (1)
The person needs to enter the password (1)
Advantage of VPN
๐The laptop connection will be secure/encrypted (1) even when using a non-secure/open network/ preventing unauthorised access to his laptop (1)
๐You can use public/shared networks securely (1) which could save money compared to paying for high speed mobile data connections (1)
๐Improved privacy when using shared computers (1) as all traffic is kept inside the secure VPN โtunnelโ (1)
Disadvantage of VPN
There could be a decrease in internet connection because it is rerouted and encrypted via a VPN server
The remote worker might need to install client software on their device(s) - training required
Some VPN providers are not legitimate and might sell data / not trustworthy
