CompTIA CompTIA A+ JK0-802 Questions & Answers

• Question 811:

  A small business owner is setting up their wireless network in their office, which is in a building shared with several other businesses. The owner does not want to disable the SSID broadcasting due to visiting customers needing to use the

  network, but does not want other businesses to notice the network, let alone access it.

  Which of the following would BEST accomplish this?

  A. Configure the access point encryption from unsecured access to WEP.

  B. Adjust the radio power so that coverage is restricted to the business.

  C. Change the SSID to reflect the business name instead of a public access point.

  D. Enable MAC filtering and restrict access to other company's devices.

  Correct Answer: B

  Best way to do this is to adjust radio power to restrict the coverage to the business. When the radio power is restricted to an office, the persons in the other office space cannot detect the signals at all.

• Question 812:

  Which of the following should a technician implement to prevent external contractors from physically plugging devices into the company's network jacks unless such jacks are designated for guest use?

  A. Disable DHCP and assign a static IP address to each network device physically connected to the network.

  B. Enable MAC address filtering across all network jacks and record the MAC address of guest devices.

  C. Disable all switch ports when they are not utilized and enable them on an as needed basis.

  D. Place guest network jacks in public areas and all other jacks in secure areas as needed.

  Correct Answer: C

• Question 813:

  Which of the following should a technician implement to prevent external contractors from physically plugging devices into the company's network jacks unless such jacks are designated for guest use?

  A. Disable DHCP and assign a static IP address to each network device physically connected to the network.

  B. Enable MAC address filtering across all network jacks and record the MAC address of guest devices.

  C. Disable all switch ports when they are not utilized and enable them on an as needed basis.

  D. Place guest network jacks in public areas and all other jacks in secure areas as needed.

  Correct Answer: C

  The best way is to disable all switch ports when they are not utilized. Switch them on when you need them. This way, you can prevent external contractors from physically plugging devices in to company's network jacks.

• Question 814:

  Which of the following security threats is defined by its self-propagating characteristic?

  A. Virus

  B. Rootkit

  C. Trojan

  D. Worm

  Correct Answer: D

  Reference: http://www.pcworld.com/article/111965/article.html

• Question 815:

  A customer needs to setup their laptop for use with a proxy server to browse the web at work. Which of the following areas would a technician need to visit to configure this on a Windows 7 system?

  A. System Protection

  B. Security Center

  C. Windows Firewall

  D. Internet Options

  Correct Answer: D

  Reference: http://windows.microsoft.com/is-is/windows-vista/using-windows-security-center

• Question 816:

  Which of the following utilities would a technician use on a Windows Vista or Windows 7 machine to configure what applications are allowed to send/receive data over the LAN connection?

  A. Users and Groups

  B. Windows Firewall

  C. Registry Editor

  D. Task Scheduler

  Correct Answer: B

  Reference: http://windows.microsoft.com/en-us/windows7/products/features/windows- firewall

• Question 817:

  A technician wants to ensure that only authorized administrators can make configuration changes to the company's wireless router. Which of the following MUST the technician change to prevent unauthorized users from modifying the access point configuration?

  A. MAC address filters

  B. Manufacturer password

  C. Default SSID

  D. Configure encryption

  Correct Answer: B

  Reference: http://pcsupport.about.com/od/windows7/f/default-password-windows-7.htm

• Question 818:

  Which of the following areas of a file system should a standard user have restricted permissions to in order to promote a security best practice? (Select TWO).

  A. Temporary Internet Files

  B. My Document Files

  C. Windows System Files

  D. Network Files

  E. Program Files

  Correct Answer: CE

  Windows program files are important for Windows operating system. If these files are deleted, Windows will corrupt. Similarly program files are related to applications and programs installed on a computer. These are highly sensitive files because they are related to the functioning of the operating system and the applications installed on it.

• Question 819:

  Which of the following is MOST effective in preventing security breaches on a network? (Select THREE).

  A. Bandwidth throttling

  B. Eliminate password history

  C. Enable QoS

  D. Antivirus software

  E. User education

  F. Enforced login/logoff hours

  Correct Answer: DEF

  Reference: http://www.esecurityplanet.com/network-security/how-to-prevent-security- breaches-from-known-vulnerabilities.html

• Question 820:

  Which of the following would be the QUICKEST means of removing data from a hard drive, when there is no consideration regarding the total destruction of the data?

  A. Standard format

  B. Low level format

  C. Overwrite program

  D. Drive wipe

  Correct Answer: A

  Reference: http://pcsupport.about.com/od/windows7/ht/format-hard-drive-windows-7.htm