ICT Internet Security I

What is your STNO ? (e.g. 22xx)

Which of the following is NOT a mobile computering device ?

• Notebook computer

• walkie talkie

• smartphne

• tablet computer

Which of the following is NOT a common wireless LAN standard ?

• 802.11b

• 802.11g

• 802.11h

• 802.11n

Which of the following technologies is supported by 802.11n but not by other wireless LAN ?

• MIMO

• WEP

• RADIUS

• WPA

Which of the following frequencies is / are supported by 802.11n?

• 2.4 GHz

• 3 GHz

• 5 GHz

• 2.4 GHz and 5 GHz

Which of the following is/are the disadvantage(s) of a wireless network over a wired network ?

• Wireless networks are less reliable

• wireless networdk are slower

• It is more difficult to secure a wireless network

• All of the above

Draw a home network including Internet, 1 boardband modem, 1 wireless router, 1 notebook computers and 1 tablet computer (Indicate the part of LAN and WAN)