CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 721:

  A user arrives at a new house and the Internet provider states the connection will run through the cable. If the user wants to install multiple PCs, which of the following will the user need in order to establish a connection? (Select TWO).

  A. VPN
  B. Router
  C. T1 card
  D. WEP
  E. Modem
  B. Router
  E. Modem

• Question 722:

  A MAC address is a part of which of the following OSI model layers?

  A. Network
  B. Data Link
  C. Physical
  D. Transport
  B. Data Link

• Question 723:

  At which of the following layers do IP addresses exist?

  A. TCP/IP model Internet layer
  B. OSI model Data Link layer
  C. TCP/IP model Transport layer
  D. OSI model Physical layer
  A. TCP/IP model Internet layer

• Question 724:

  A company has multiple WAPs within close proximity to each other to allow users to move about seamlessly through the building with their laptops, without losing any connection. However, this has had the opposite effect, causing any user that is close to two of the access points to constantly reconnect to the wireless network. Which of the following should be changed on all the WAPs to allow this to work as the customer intended?

  A. Change the SSID to be unique for each WAP.
  B. Change the antenna direction to be unique for each WAP.
  C. Change the encryption method to be unique for each WAP.
  D. Change the channel to be unique for each WAP.
  D. Change the channel to be unique for each WAP.

• Question 725:

  Which of the following can assist when troubleshooting a cable that meets the 1000BaseLX specification?

  A. Multimeter
  B. OTDR
  C. Link state
  D. Protocol analyzer
  B. OTDR

• Question 726:

  A user reports sporadic network outages. The user tells the administrator it happens after approximately 20 minutes of work on an application. The administrator should begin troubleshooting by checking which of the following?

  A. The IDS server logs
  B. The DNS resolution time
  C. The firewall's blocked logs
  D. The patch cable
  D. The patch cable

• Question 727:

  Which of the following is being described when symbols are displayed on the side of the building and/or walking path, to identify open hot-spots?

  A. Social engineering
  B. War chalking
  C. WPA cracking
  D. Packet sniffing
  B. War chalking

• Question 728:

  A technician wants to send management information from devices on the network to a central server and have it encrypted in the process. Which of the following protocols can be used?

  A. SNMPv3
  B. FTP
  C. TFTP
  D. Telnet
  A. SNMPv3

• Question 729:

  Which of the following should the last line of an ACL normally contain?

  A. Explicit allow
  B. Statically routed
  C. Random access
  D. Implicit deny
  D. Implicit deny

• Question 730:

  The term virtual switch refers to which of the following?

  A. A switch that has not yet been implemented in the local network
  B. Migrating an entire environment to virtualization
  C. A computer component that controls environmental elements, such as lights and thermometers
  D. A logical, rather than a physical switch device
  D. A logical, rather than a physical switch device