CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 861:

  Which of the following reduces the deployment cost of a wireless LAN?

  A. WPA

  B. 802.1x

  C. MIMO

  D. PoE

  Correct Answer: D

• Question 862:

  Which of the following DHCP propertes defnes the siie of the pool of available IP addresses?

  A. Optons

  B. Scope

  C. Leases

  D. Reservatons

  Correct Answer: B

• Question 863:

  A customer is having problems connectng to a wireless network in a shared ofce space. The customer can detect several other wireless network signals. All of the wireless networks have diferent SSIDs but several are using the same encrypton type. Which of the following should be confgured on the customerns wireless network to improve connectvity to the wireless network?

  A. Change the SSID to match other wireless networks for increased throughput.

  B. Change the encrypton type to a diferent mechanism to avoid interference.

  C. Change the channel to a diferent channel than the other wireless networks.

  D. Change the WAP to a diferent manufacturer than the other wireless networks.

  Correct Answer: C

• Question 864:

  A customer is implementng a VoIP infrastructure using an existng network. The customer currently has all network devices on the same subnet and would like the phones to be powered without the use of an AC adapter. Which of the following features should be enabled and confgured to allow for reliable performance of the VoIP system? (Select THREE).

  A. WEP

  B. PoE

  C. VLANs

  D. SSL VPN

  E. IDS

  F. QoS

  Correct Answer: BCF

• Question 865:

  A user wants to connect seven PCs together for a game night. Which of the following should the user install to help with this task?

  A. Media convertor

  B. Switch

  C. Firewall

  D. Bridge

  Correct Answer: B

• Question 866:

  A technician needs multple networksf high speedsf and redundancy on a system. Which of the following confguratons should be considered for these requirements? (Select TWO).

  A. Routng table

  B. Next hop

  C. Port mirroring

  D. Port monitoring

  E. VLANs

  Correct Answer: CE

• Question 867:

  A network technician needs to confgure a port on a switch to provide connectvity and electrical support to a WAP being installed in a warehouse. Which of the following features needs to be confgured on the switch?

  A. STP

  B. PoE

  C. VTP trunking

  D. Port forwarding

  Correct Answer: B

• Question 868:

  Which of the following can a network technician change to help limit war driving?

  A. Signal strength

  B. SSID

  C. Frequency

  D. Channel

  Correct Answer: A

• Question 869:

  A technician has received a trouble tcket from a user who has intermitent wireless access. Moving the computer farther from the WAP results in a more stable connecton. Which of the following is MOST likely the cause of this instability?

  A. Wrong encrypton type

  B. SSID mismatch

  C. Signal bounce

  D. Incorrect channel

  Correct Answer: C

• Question 870:

  A technician is reviewing the following company diagram to determine proper connectvity setngs:

  

  Which of the following device confguratons is out of specifcatons?

  A. LaptopC

  B. ServerE

  C. LaptopB

  D. ServerA

  E. PC1

  Correct Answer: D