CompTIA CompTIA A+ 220-801 Questions & Answers

• Question 721:

  Which of the following connectors has a distinct round shape to it?

  A. RJ-45

  B. MiniHDMI

  C. RS-232

  D. BNC

  Correct Answer: D

  Reference. http://en.wikipedia.org/wiki/BNC_connector

• Question 722:

  Which of the following ports MUST be open on a firewall for TELNET to be used?

  A. 21

  B. 23

  C. 53

  D. 110

  Correct Answer: B

  Reference. http://en.wikipedia.org/wiki/Telnet

• Question 723:

  Which of the following can provide several networking transmission methodologies to be utilized in a single device?

  A. Switch

  B. Bridge

  C. Hub

  D. Router

  Correct Answer: D

  Reference. http://www.howstuffworks.com/router.htm

• Question 724:

  Joe, a user, requests that a new printer be installed for his SOHO environment. Joe wants to be able to print to the device from any location within the SOHO. Which of the following should be used?

  A. Infrared (IR)

  B. Serial

  C. 802.11

  D. Bluetooth

  Correct Answer: C

  Reference. http://www.webopedia.com/TERM/8/802_11.html

• Question 725:

  A technician is tasked with setting up a web server for a small business. Where would the technician place the server so that it is accessible from the Internet while keeping the customer's network separated from it?

  A. In the DMZ

  B. Behind NAT

  C. Outside the DHCP scope

  D. Inside the DHCP scope

  Correct Answer: A

  Reference. http://www.zdnet.com/news/dmzs-for-dummies/297743

• Question 726:

  How many total IP addresses are represented by the 255.255.255.0 netmask?

  A. 128

  B. 256

  C. 512

  D. 1024

  Correct Answer: B

  Reference. http://compnetworking.about.com/od/wirelessterms/g/255-255-255-0- subnet-mask.htm

• Question 727:

  A customer requires that both of the default FTP ports be allowed on the firewall. Which of the following should the technician enable to allow this communication? (Select TWO).

  A. TCP/20

  B. UDP/20

  C. TCP/21

  D. UDP/21

  E. TCP/22

  F. UDP/22

  Correct Answer: AC

  Reference. http://compnetworking.about.com/od/tcpip/l/blports_gl10.htm

• Question 728:

  Which of the following wireless standards only uses TKIP encryption?

  A. WPA2

  B. AES

  C. WPA

  D. WEP

  Correct Answer: C

  Reference. http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access

• Question 729:

  A computer technician is installing a new wireless router for a small office. The office already has an internal device that assigns addresses to users. Which of the following functions needs to be disabled on the router to prevent conflicts?

  A. DMZ capability

  B. MAC filtering capability

  C. Network Address Translation

  D. DHCP server functionality

  Correct Answer: D

  DHCP automatically assigns IP address, subnet mask and default gateway to provide access to workstations. Disable DHCP server before installing a wireless router so that you can configure it without DHCP assigning IP addresses to other computers.

• Question 730:

  A new secure SOHO is being setup using a wireless network. The users do not want any surrounding neighbors to be able to use this new network. Which of the following would MOST likely need to be configured? (Select TWO).

  A. Configure WAP to use Channel 7

  B. Configure WAP to use Channel 11

  C. Enable SSID broadcast

  D. Disable SSID broadcast

  E. Enable DHCP server on the router

  F. Configure wireless encryption

  G. Configure WAP to use Channel 1

  Correct Answer: DF

  Reference. https://www.gosafeonline.sg/how-do-i-secure-my-homesoho-wi-fi