CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 351:

  A user has three different subnets in an office. Which of the following can be configured to allow two of the subnets to communicate directly with each other at the switch level?

  A. 802.1af
  B. 802.1q
  C. 802.1x
  D. 802.2
  B. 802.1q

• Question 352:

  Many of the corporate users work from a coffee shop during their lunch breaks. The coffee shop only has an open wireless network. Which of the following should the administrator recommend to users to secure their wireless communications at the coffee shop?

  A. Enable the host-based firewall on each of the laptops
  B. Use a VPN after connecting to the coffee shop wireless
  C. Edit the SSID connection information and change 'open' to 'shared'
  D. Connect to the open SSID then switch on WPA2 encryption
  B. Use a VPN after connecting to the coffee shop wireless

• Question 353:

  A SOHO had their wireless network breached on several occasions. The user turned off the SSID and enabled WEP encryption, but breaches are still occurring. Which of the following will improve security and MOST likely prevent future breaches?

  A. Turn down the signal strength
  B. Replace the WAP and enable WEP
  C. Change both the SSID and WEP key
  D. Enable WPA2 encryption
  D. Enable WPA2 encryption

• Question 354:

  Which of the following reasons would MOST likely be used to implement QoS and traffic shaping solutions?

  A. Redundancy
  B. Fault tolerance
  C. Unified communications
  D. Uptime requirements
  C. Unified communications

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  In unified communication video,voice,data have only one end gateway so to give priority to avoid delay in voice and video we use Qos.

• Question 355:

  Which of the following network topologies would be separated into two networks if a client in the middle is removed or the cable is cut?

  A. Mesh
  B. Ring
  C. Bus
  D. Star
  C. Bus

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  A bus network topology is a network topology in which a set of clients are connected via a shared communications line/cables, called a bus.

• Question 356:

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

  A. STP
  B. PoE
  C. VTP trunking
  D. Port forwarding
  B. PoE

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  Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.

• Question 357:

  The process of restricting internal web traffic to an employee-only website based upon Layer 3 addresses is known as which of the following?

  A. MAC filtering
  B. Traffic shaping
  C. Session filtering
  D. IP filtering
  D. IP filtering

• Question 358:

  Which of the following tools would a technician use to determine if a CAT6 cable is properly terminated?

  A. Cable tester
  B. Punch down tool
  C. Crimper
  D. Multimeter
  A. Cable tester

• Question 359:

  Which of the following 802.3 classifications has a MAXIMUM segment distance of 984 feet (300 meters)?

  A. 1000Base
  B. 100BaseFX
  C. 1000BaseSX
  D. 1000BaseT
  C. 1000BaseSX

• Question 360:

  Various desktop computers are not getting a link light even though the patch cables were replaced. Cables on a 110-block patch panel are suspected to be causing the issues. Which of the following hardware tools would MOST likely be used to troubleshoot and resolve the issue? (Select TWO).

  A. Cable certifier
  B. Ping command
  C. Punch down tool
  D. Crimper
  E. Toner probe
  A. Cable certifier
  C. Punch down tool