The loss prevention department has purchased a new application that allows the employees to monitor
the alarm systems at remote locations. However, the application fails to connect to the vendor’s server
and the users are unable to log in. Which of the following are the MOST likely causes of this issue? (Select
TWO).
A.
URL filtering
B.
Role-based access controls
C.
MAC filtering
D.
Port Security
E.
Firewall rules
Explanation:
A URL filter is used to block URLs (websites) to prevent users accessing the website.
Firewall rules act like ACLs, and they are used to dictate what traffic can pass between the firewall and
the internal network. Three possible actions can be taken based on the rule’s criteria:
Block the connection
Allow the connection
Allow the connection only if it is secured
Incorrect Options:
B: Role-based Access Control is basically based on a user’s job description. When a user is assigned a
specific role in an environment, that user’s access to objects is granted based on the required tasks of
that role. Since the sales team needs to save and print reports, they would not be restricted if restrictions
were role-based.
C: A MAC filter is a list of authorized wireless client interface MAC addresses that is used by a WAP to
block access to all unauthorized devices.
D: Port security works at level 2 of the OSI model and allows an administrator to configure switch ports so
that only certain MAC addresses can use the port.
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 19, 61, 276
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, p. 157