CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 171:

  Kurtf a userf cannot access any network resources. The technician has determined that the problem is isolated to Kurtf and that there have not been any changes to his workstaton or switch port recently. Which of the following steps in the troubleshootng methodology should the technician do NEXT?

  A. Establish a plan of acton to resolve the problem.
  B. Implement preventatve measures.
  C. Implement the soluton or escalate as necessary.
  D. Establish a theory of probable cause.
  D. Establish a theory of probable cause.

• Question 172:

  A network administrator is adding 24 - 802.3af class 2 VoIP phones and needs to purchase a single PoE switch to power the phones. Which of the following is the MINIMUM PoE dedicated watage the switch supports to power all of the phones at full power?

  A. 96W
  B. 168W
  C. 240W
  D. 369.6W
  B. 168W

• Question 173:

  A technician working for a company with a wireless network named WirelessA notces a second wireless network named WirelessB. WirelessB is MOST likely a:

  A. Man-in-the-middle atack.
  B. Rogue access point.
  C. Evil twin.
  D. Packet snifer.
  B. Rogue access point.

• Question 174:

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

• Question 175:

  Which of the following network devices MOST likely functons as a network repeater or a bridge?

  A. VPN concentrator
  B. IDS
  C. Access point
  D. Firewall
  C. Access point

• Question 176:

  An administrator is setng up a secure wireless network. The administrator decides to support 802.11n and 802.11g with a WPA2 pre-shared key. Users are given the SSID with the pre-shared keyf but the administrator has disabled the SSID broadcast and MAC fltering. Some users have reported connecton issues. Which of the following would MOST likely resolve the usersn connecton issues?

  A. Limit the devices to 802.11n only.
  B. Enable the SSID broadcast.
  C. Enable MAC fltering.
  D. Use a WEP 128-bit key.
  B. Enable the SSID broadcast.

• Question 177:

  A company wants to simplify network authentcaton for their users. Which of the following would be used to implement wireless security with single sign-on?

  A. WPA2 enterprise
  B. WEP
  C. Stateful frewall
  D. PAT
  A. WPA2 enterprise

• Question 178:

  Kurtf a network technicianf is trying to set up a SOHO network to allow Internet connectvity for all employees based on the following hardware: 4 computers with LAN and wireless cards 1 router with 3 LAN ports 2 Ethernet cables 1 cable modem The manager would like as many of the computers as possible to be physically connectedf instead of using wireless. Which of the following scenarios would meet this requirement based on the equipment available?

  A. The router should be connected to the modem and one PC can be physically connected to the router. All other PCs must connect wirelessly.
  B. The modem should be physically connected to the router and two PCs can be physically connected to the router. All other PCs must connect wirelessly.
  C. The router should be connected to the modem and three PCs can be physically connected to the router. The other PC must connect wirelessly.
  D. The modem should be physically connected to one PC. All other PCs must connect wirelessly.
  A. The router should be connected to the modem and one PC can be physically connected to the router. All other PCs must connect wirelessly.

• Question 179:

  A user reports that some normally accessible external sites are not respondingf but most other sites are responding normally. Which of the following is MOST likely the cause?

  A. VLAN tag mismatch
  B. Wrong subnet mask
  C. Smurf atack
  D. Faulty routng rule
  D. Faulty routng rule

• Question 180:

  Which of the following protocols are used to connect devices in a secure manner? (Select TWO).

  A. TELNET
  B. SSH
  C. RDP
  D. HTTP
  E. DNS
  F. FTP
  B. SSH
  C. RDP