CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 1:

  Which of the following commands would be used to identify how many hops a data packet makes before reaching its final destination?

  A. route
  B. netstat
  C. traceroute
  D. ping 127.0.0.1
  C. traceroute

• Question 2:

  Drag and drop each networking tool to the MOST appropriate descriptor. Each tool may only be used once.

  Select and Place:

  

  

• Question 3:

  A Linux-based workstation is unable to connect to an IP printer on the same network segment. The printer IP address settings have been verified. How would a network technician verify IP address settings on the Linux-based workstation?

  A. Run the dig command on the workstation.
  B. Run the nslookup command on the workstation.
  C. Run the ipconfig command on the workstation.
  D. Run the ifconfig command on the workstation.
  D. Run the ifconfig command on the workstation.

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  The "ifconfig" command allows the linux/unix operating system to setup network interfaces and allow the user to view information about the configured network interfaces.

• Question 4:

  A network technician is troubleshooting a user's connectivity problem, and has determined a probable cause. The technician is at which step in the troubleshooting methodology?

  A. Verify full system functionality
  B. Identify the problem
  C. Establish a theory
  D. Implement the solution
  C. Establish a theory

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  Establish a theory means to correlate the finding and cause of a problem in order to fix the problem.

• Question 5:

  An administrator notices that a computer on the network is unable to reach any of the servers by hostname. The computer has connectivity to the network and is able to ping all the devices by IP address. Which of the following can cause the error?

  A. The workstation has a duplicate IP address.
  B. The workstation has been assigned to the wrong VLAN.
  C. The workstation has the wrong gateway configured.
  D. The workstation has the wrong DNS configured.
  D. The workstation has the wrong DNS configured.

• Question 6:

  A user needs maximum distance in a wireless connection. Which of the following should be configured to meet this goal?

  A. 802.11a at 54Mbps
  B. 802.11b at 1Mbps
  C. 802.11g at 11Mbps
  D. 802.11n at 130Mbps
  B. 802.11b at 1Mbps

• Question 7:

  Which of the following defines an IP address that is NOT routed on the Internet?

  A. Multicast
  B. Public
  C. Private
  D. Classful
  C. Private

• Question 8:

  A small company has a single multi-layer switch. The company currently has all network devices on the same subnet but would like to switch the servers to another subnet for security reasons. The company cannot budget any more money to purchase additional hardware. Which of the following features should be used to achieve the new company requirements?

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

• Question 9:

  Which of the following can operate on BOTH the 2.4GHz and 5.8GHz frequencies?

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

• Question 10:

  Which of the following network devices is meant to actively protect against network treats and can disable connections to stop malicious traffic if necessary?

  A. DMZ
  B. IPS
  C. SSL VPN
  D. Layer 3 switch
  B. IPS