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SAQ 5

1

Ports

A network administrator wants to block all ftp traffic on a network. What port could be locked out to achieve this?

a)
b)
c)
d)
Please select an answerYes, blocking this port should prevent FTP traffic.No, blocking this port would block SMTP (sending e-mails)No, blocking this port would prevent HTTP (web page traffic)No, blocking this port would prevent POP3 (downloading e-mails)
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2

Physical Medium

Which one of the following physical media allows the highest data bandwidth?

a)
b)
c)
d)
Please select an answerNo. In digital communications, bandwidth is often used to refer to channel capacity - currently coaxial cable can support up to 10Mbits/sYes. In digital communications, bandwidth is often used to refer to channel capacity - currently fibre optic cable can support up to 10Gbits/sNo. In digital communications, bandwidth is often used to refer to channel capacity - currently twisted pair cable can support up to 100Mbits/sNo. In digital communications, bandwidth is often used to refer to channel capacity - currently the highest capacity wireless standard is 802.11g (max 54Mbits/s) - 802.11n is due in 2008 and has a maximum capacity of 248Mbits/s
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Next: SAQ 6