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Computer Science IGCSEPDF 65
142 pagesrevision 46930
PDF 65
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[4]
(d) Priya has a URL for her website.
State what is meant by a URL.
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[1]
(e) Priya is concerned about a denial of service attack (DoS) occurring on her
webserver.
(i) Explain what is meant by a denial of service attack.
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(ii) Give one security device that can be used to help prevent a denial of service attack.
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0478/13/M/J/20/Q7
Edie uses a firewall to help prevent her children from accessing websites that she does
not want them to see.
(a) Describe how the firewall helps prevent her children from accessing these websites.
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