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Posts tagged ‘Exams’

Wireless network stuff

The domain is the bigger network, a work group is a smaller group within the domain, information can be shared between only these computers.

SSID – Service Set Identifier

The default wireless network name so that wireless devices can detect other devices in a wireless network, it must be manually entered when the SSID broadcast has been disabled on the wireless router or access point.

MAC address filtering

A security technique in which only identified MAC addresses can connect to a wireless network, used on wireless LAN’s

WEP – Wired Equivalent Privacy

First generation security for wireless, crap, it is easy to break it’s encryption making it pretty much useless.

WPA – Wi-Fi Protected Access

2nd generation of WEP, has much stronger encryption


A security layer for wireless systems, once it was made an official standard WPA2 was released

WPA2 – Wi-Fi protected access 2

The improved version of WPA which uses the entire 802.11i standard and provides goverment grade security. It can be enabled in two versions:

Personal – Password authentication

Enterprise – Server authentication

LEAP – Lightweight extensible Authentiation Protocol

CISCO’s wireless security, addresses weaknesses in WEP and WPA

WTLS – Wireless Transport Layer Security

Security for mobile devices which uses a smaller amount of bandwidth. Uses WAP (Wireless Applications Protocol)

 Hub – receives data, sends to all ports

Switch – Sends to intended port, more sophisticated than a bridge

Routers – Connects entire networks to each other e.g. internet

WAP – Wireless Access Points, Uses radio waves to connect wireless devices to the network

Hint, hint!

PDLC – Program Development Life Cycle

*Plan, design, develop (logic), implement, test.

  • Define the problem,

What is the situation/requirements?

  • Design the solution (naming standards),

What should the program do?

  • Code the program
  • Test the program
  • Document the program
  • Implement the program


Types of program testing

  • Black box testing – User interface testing, using the program to pick out bugs
  • White box testing – Coding testing


  • design
  • naming standards
  • logic of items


  • Program name
  • Authors name
  • Date
  • Program version
  • Explainations of each piece of code

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