CompTIA Security+ Question K-74

Which of the following preventative controls would be appropriate for responding to a directive to reduce the attack surface of a specific host?

A. Installing anti-malware
B. Implementing an IDS
C. Taking a baseline configuration
D. Disabling unnecessary services

Answer: D

Explanation:
Preventive controls are to stop something from happening. These can include locked doors that keep intruders out, user training on potential harm (to keep them vigilant and alert), or even biometric devices and guards that deny access until authentication has occurred. By disabling all unnecessary services you would be reducing the attack surface because then there is less opportunity for risk incidents to happen. There are many risks with having many services enabled since a service can provide an attack vector that someone could exploit against your system. It is thus best practice to enable only those services that are absolutely required.

CompTIA Security+ Question B-71

Matt, an administrator, is concerned about the wireless network being discovered by war driving.
Which of the following can be done to mitigate this?

A. Enforce a policy for all users to authentic through a biometric device.
B. Disable all SSID broadcasting.
C. Ensure all access points are running the latest firmware.
D. Move all access points into public access areas.

Answer: B

Explanation:
B: War driving is the act of using a detection tool to look for wireless networking signals. The setting making a wireless network closed (or at least hidden) is the disabling of service set identifier (SSID) broadcasting. Thus by disabling all SSID broadcasting you can mitigate the risk of war driving.

CompTIA A+ Question E-88

A technician installs a biometric device using the manufacturer supplied driver. After confirming the device functions properly, the technician performs Windows and antivirus updates. Which of the following would BEST explain why the biometric device no longer functions?

A. The recently updated antivirus scanning software is interfering with the proper operations of the biometric device.
B. A virus that specifically targets retinal scanning software infected the PC because the user was late applying new definitions.
C. The recently installed Windows updates overwrote the manufacturer’s supplied biometric device driver.
D. The biometric device needs to be recalibrated due to environmental conditions involved with the installation.

Correct Answer: C

Explanation:
Microsoft updates Windows oftenly. The update contains drivers as well. The possible reason of the problem is that Windows update manufacturer’s device driver during the update process. Check the driver to confirm the issue. You can always install the original driver for the biometric device if this problem occurs.