Which of the following should the security administrator implement to limit web traffic based on
country of origin? (Select THREE).
A.
Spam filter
B.
Load balancer
C.
Antivirus
D.
Proxies
E.
Firewall
F.
NIDS
G.
URL filtering
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Spam is a mail filter …question says web traffic so not specific to mail (nope)
LB is just a device that distributes load among multi servers (not correct)
AV scans for virus / malware (does not filter traffic) (no!!)
Proxy can filter and inspect traffic (possibility here)yes
Firewalls (depends but firewall filter spi, proxy) Possibility!!! Oh yea yes
Nid is passive just logs and send reports (no way hose A!!!)
URL filtering …it filters out URLS (obvious)yes
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Key concept: I want to: LIMIT WEB TRAFFIC
ELIMINATION:
A- Spam filter – This is for email
B – Load balancers are to BALANCE the load of web traffic , not to limit it
C – Antivirus does not limit web traffic. It analyses it and detects/eliminates a virus
F-NIDS stands for “Network Intrusion Detection System”. It “detects” the “intrusion” , but it does not limit web traffic
So the only ones left are: D, E and G
A proxy server is a server that acts as an intermediary for requests from clients seeking resources from other servers. It is used to manage/limits traffic as well.
Firewalls manages/limits traffic using a rule or a set of rules.
A URL is a reference to a resource that specifies the location of the resource. A URL filter is used to block access to a site based on all or part of a URL.
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