CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 791:

  A new employee was given the following informaton to connect to the corporate wireless network for the frst tme:

  SSID: CorporateWiFi

  Encrypton: WPA2

  Password: SuperSecret!

  The user enters the correct SSID and notces that encrypton type or password are not required when confguring the laptop in the ofcef and the laptop successfully connects to the Internet. When the user brings the laptop to the conference

  roomf a pop-up asks for the CorporateWiFi password. Which of the following is the MOST likely cause of this behavior?

  A. The laptop wireless network card is incompatble with the conference room WAP.

  B. The ofce walls prevent the employee from making a full connecton.

  C. A rogue access point was installed by a company employee.

  D. MAC fltering is only enabled in the conference room.

  Correct Answer: C

• Question 792:

  A consultant has been hired to wire a simple small ofce of ten computers to a layer 2 Ethernet 100BaseT switch. Which of the following cabling will be needed for the installaton?

  A. Multmode fber

  B. RG-59 coaxial

  C. CAT6a

  D. CAT3

  Correct Answer: C

• Question 793:

  The DHCP server leases IP addresses 10.162.233.158 to WBAC11 for a period of 14 days. At which of the following tmes would WBAC11 send an inital request to the DHCP server to renew the IP address lease?

  A. Day 4

  B. Day 6

  C. Day 8

  D. Day 10

  Correct Answer: C

• Question 794:

  A VoIP system running over a wireless network link is contnually being reported as choppy. Which of the following is the cause of this issue?

  A. Frequency

  B. Latency

  C. Interference

  D. Encrypton type

  Correct Answer: B

• Question 795:

  A network has a large number of users who connect for short periods of tme and the network needs to maximiie the number of devices that can be confgured using DHCP. Which of the following should be confgured to solve this issue?

  A. Increase the number of reservatons

  B. Increase exclude list

  C. Decrease lease tmes

  D. Decrease the scope

  Correct Answer: C

• Question 796:

  Which of the following protocols would be MOST likely found to be running on a device in a SOHO environment?

  A. BGP

  B. SONET

  C. IPSec

  D. OSPF

  Correct Answer: C

• Question 797:

  Joef a network technicianf is asked to install a couple new WAPns inside a back warehouse that was added to a main warehouse facility that already has complete wireless coverage on both the 2.4GHi and 5GHi frequencies. Joe already has a complete wireless heat map of the main warehouse. Which of the following is the frst step that Joe should do before choosing which WAPns to use?

  A. Conduct a wireless survey of the back warehouse.

  B. Ask the vendor that provided the WAPns for the main warehouse for recommendatons.

  C. Ask the systems administrator which WAPns are preferred.

  D. Only order WAPns that support 5GHi channels.

  Correct Answer: A

• Question 798:

  A network administrator is replacing old switches to support a VoIP deployment. Based on this parameterf which of the following is MOST likely to be implemented on these new switches?

  A. PoE

  B. STP

  C. NAT

  D. VTP

  Correct Answer: A

• Question 799:

  A technician is troubleshootng a wireless network that was setup previously. The network is a hybrid of 802.11g and 802.11n WAPs. Users are not able to view or connect to the 802.11n WAPs. Which of the following is MOST likely the cause?

  A. The 802.11g WAPs are not setup for backwards compatbility.

  B. The 802.11n WAPs are using a 2.4 GHi frequency channel.

  C. The 802.11n WAPs are using a 5 GHi frequency channel.

  D. The 802.11g WAPs all have disabled SSID broadcast.

  Correct Answer: C

• Question 800:

  A small business owner is in the process of setng up a SOHO ofce. The ofce has only one connecton to the Internet via a broadband cable connecton. The ofce has four subnets that must be able to connect to the Internet. Which of the following devices would enable the owner to meet these requirements?

  A. A frewall

  B. A router

  C. A hub

  D. A Layer 2 switch

  Correct Answer: B