CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 501:

  A technician is terminating a new run of network cables to a 110 block. Which of the following tools would the technician use?

  A. Loopback plug
  B. Crimper tool
  C. Punch down tool
  D. Cable tester
  C. Punch down tool

• Question 502:

  Some employees are unable to maintain a wireless network connection. The network's wireless infrastructure is comprised of three different buildings with the configurations listed below. Wireless network in Building A and C is used exclusively for internal employees and Building B is used for visitors and requires no additional configuration on their devices. Which of the following settings would need to be modified to provide the BEST wireless experience for all employees as they move between buildings?

  Building ABuilding BBuilding C Channel: 1Channel: 6Channel: 11 Encryption: WPA2Encryption: OpenEncryption: WPA2 SSID. CorpSSID. GuestSSID. Sales

  A. Change Channel in Building B to 7
  B. Change Encryption in Building B to match A and C
  C. Change Channel in Building C to 1
  D. Change SSID in Building C to match Building A
  D. Change SSID in Building C to match Building A

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  The configuration difference between users in building A and C is that they have same encryption however the SSID is different so the user has to manually authenticate and connect to the network whenever he will move between buildings. If the SSID's are same then he will not have to authenticate himself again and he will get automatic connectivity.

• Question 503:

  A new technician has moved the wireless access point from the middle of the office to an area near a corner office. Wireless users are MOST likely to experience issues with which of the following?

  A. Signal strength
  B. SSID mismatch
  C. Channel mismatch
  D. Encryption mismatch
  A. Signal strength

• Question 504:

  A technician is installing a switch that will be used for VoIP and data traffic. The phones do not support the 802.3af standard. Which of the following should the technician configure on the switch?

  A. VLAN
  B. PoE
  C. VTP
  D. QoS
  D. QoS

• Question 505:

  Which of the following connectors is used on a coaxial cable?

  A. F
  B. LC
  C. RJ-11
  D. ST
  A. F

• Question 506:

  A cable with visible space between the ends of the copper wires and the RJ-45 connector will cause which of the following problems to occur?

  A. EMI
  B. Short
  C. Reversed TXRX
  D. dB loss
  B. Short

• Question 507:

  An IP camera has a failed PoE NIC. This is the third time in months that a PoE NIC has failed on this device. The technician suspects a possible power issue. Which of the following should be used to test the theory?

  A. Toner probe
  B. Loopback plug
  C. Protocol analyzer
  D. Multimeter
  D. Multimeter

• Question 508:

  Which of the following wireless standards provide speeds up to 150Mbps?

  A. 802.11a
  B. 802.11b
  C. 802.11g
  D. 802.11n
  D. 802.11n

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  802.11n builds upon previous 802.11 standards by adding multiple-input multiple-output (MIMO). The additional transmitter and receiver antennas allow for increased data throughput through spatial multiplexing and increased range by exploiting the spatial diversity through coding schemes like Alamouti coding. The speed is 150 Mbit/s (even 250 Mbit/s in PHY level)

• Question 509:

  Which of the following WAN technology types has the GREATEST latency?

  A. ISDN
  B. Fiber
  C. Satellite
  D. Cable
  C. Satellite

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  Because satellites provide a microwave radio relay technology complementary to that of communication cables. They are also used for mobile applications such as communications to ships, vehicles, planes and hand-held terminals, and for TV and radiobroadcasting.

• Question 510:

  A network technician is designing a SOHO environment where cost is a consideration. The requirements include access to the Internet and access to the guest house which is 100 feet away. The location of the Internet modem is located in the main house. Which of the following is the BEST option to accomplish these requirements?

  A. Use two combined Internet/router/wireless devices, one in each house.
  B. Use a Layer 3 switch in the main house and a combined Internet/router/wireless device in the guest house.
  C. Use a combined Internet/router/wireless device in the main house and a wireless access point in the guest house.
  D. Use a single combined Internet/router/wireless device at the guest house.
  C. Use a combined Internet/router/wireless device in the main house and a wireless access point in the guest house.