CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 341:

  A user reports that one of their critical programs no longer functions after a recent router upgrade in the office. A network technician is called in to troubleshoot the issue and documentation shows that the software needs full open connections over ports 558, 981, and 382 in order to function. Which of the following tools could the technician BEST use to troubleshoot this issue?

  A. NET USE
  B. IPCONFIG
  C. TRACEROUTE
  D. TELNET
  D. TELNET

• Question 342:

  Which of the following is used to determine whether or not a user's account is authorized to access a server remotely?

  A. VPN
  B. RDP
  C. LDAP
  D. Encryption
  C. LDAP

• Question 343:

  Ann, a new user, is unable to communicate on the network from her computer. A technician has verified that the cables are functioning properly. Based on the information below, which action should the technician take to correct Ann's problem?

  Computer_ASwitch_A

  IP: 10.0.0.60Int VLAN10

  SM: 255.255.255.0IP address 10.0.0.1/28

  GW: 10.0.0.1Speed 100 Duplex Full

  A. Change the duplex on the switch interface to half
  B. Change the speed on the switch interface to 10Mbps
  C. Change the subnet mask of the computer to 255.255.255.240
  D. Change the IP address of the computer to 10.0.0.12
  D. Change the IP address of the computer to 10.0.0.12

• Question 344:

  Users have contacted the helpdesk stating that they have been having difficulties staying connected to the wireless network. They report that their laptops connect to one access point, drop the connection and then connect to a different access point in a never-ending cycle. Which of the following would BEST remediate this?

  A. Reconfigure the access points from 802.11b to 802.11g.
  B. Establish procedures which limit user connections during peak hours.
  C. Configure the access points so that they all use different SSIDs.
  D. Move one or more access points, minimizing signal overlap.
  D. Move one or more access points, minimizing signal overlap.

• Question 345:

  Which of the following WAN technology types are mainly used over POTS lines to provide Internet connectivity? (Select TWO).

  A. Dialup
  B. DSL
  C. SONET
  D. Cable
  E. WiMAX
  F. LTE
  A. Dialup
  B. DSL

• Question 346:

  A small office is looking to deploy wireless to cover one half of the work area only. The technician is restricted to suspending the WAP in the middle of the office due to network jack limitations. Which of the following antenna types would BEST meet these requirements?

  A. Dipole
  B. Parabolic
  C. Directional
  D. Omni-directional
  C. Directional

• Question 347:

  A small office has created an annex in an adjacent office space just 20 feet (6 meters) away. A network administrator is assigned to provide connectivity between the existing office and the new office. Which of the following solutions provides the MOST security from third party tampering?

  A. CAT5e connection between offices via the patch panel located in building's communication closet.
  B. CAT5e cable run through ceiling in the public space between offices.
  C. VPN between routers located in each office space.
  D. A WEP encrypted wireless bridge with directional antennae between offices.
  C. VPN between routers located in each office space.

  ---

  A VPN connection across the Internet is similar to a wide area network (WAN) link between the sites. From a user perspective, the extended network resources are accessed in the same way as resources available from the private network.

• Question 348:

  A user is on a network with two upstream connections to the Internet and is experiencing intermittent issues while connecting to websites. Some websites are available but others are not. Which of the following is the MOST likely cause of the condition?

  A. Incorrect VLAN assignment
  B. Bad or missing routes
  C. Switching loop
  D. Wrong subnet mask
  B. Bad or missing routes

• Question 349:

  Which of the following devices acts as a gateway between clients and servers?

  A. WINS server
  B. Proxy server
  C. Content filter
  D. DNS server
  B. Proxy server

• Question 350:

  A network administrator needs to ensure there is no same channel interference for an 802.11n deployment with four WAPs. Which of the following channel setting configurations meets this criteria when using 40 MHz channels?

  A. 36, 40, 44, 48
  B. 36, 44, 52, 60
  C. 36, 44, 48, 52
  D. 36, 48, 60, 64
  B. 36, 44, 52, 60