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

Explanation:
A proxy server is a server that acts as an intermediary for requests from clients seeking resources from
other servers.
Firewalls manage 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.
Incorrect Answers:
A: A spam filter deals with identifying and blocking/filtering/removing unsolicited messages.
B: A load balancer is used to acquire more optimal infrastructure utilization, reduce response time,
maximize throughput, decrease overloading, and remove bottlenecks.
C: An antivirus monitors the local system for the presence of malware in memory, in active processes, and
in storage.
F: NIDS is reliable for detecting attacks directed against a host, whether they originate from an external
source or are being perpetrated by a user locally logged in to the host.
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 10, 18-21