JK0-019 Exam Details

  • Exam Code
    :JK0-019
  • Exam Name
    :CompTIA Network+
  • Certification
    :CompTIA Certifications
  • Vendor
    :CompTIA
  • Total Questions
    :828 Q&As
  • Last Updated
    :Nov 20, 2021

CompTIA JK0-019 Online Questions & Answers

  • Question 561:

    A company recently added an addition to their office building. A technician runs new plenum network cables from the switch on one side of the company's gymnasium 80 meters (262 ft.) to the new offices on the other side, draping the wires across the light fixtures. Users working out of the new offices in the addition complain of intermittent network connectivity. Which of the following is MOST likely the cause of the connectivity issue?

    A. dB loss
    B. Distance
    C. Incorrect connector type
    D. EMI
    E. Crosstalk

  • Question 562:

    Which of the following BEST describes the definition of DHCP?

    A. DHCP is utilized to dynamically lease IP addresses to hosts.
    B. DHCP is utilized to statically lease IP address to hosts.
    C. DHCP is utilized to permanently lease IP address dynamically to hosts.
    D. DHCP is utilized to permanently lease IP address statically to hosts.

  • Question 563:

    Which of the following protocols is MOST commonly used for the transfer of router configuration files?

    A. SSL
    B. TFTP
    C. DNS
    D. IMAP

  • Question 564:

    Multiple networked devices running on the same physical hardware that provide central access to applications and files, where each device runs as a piece of software are known as:

    A. Virtual desktops.
    B. Switches.
    C. PBXs.
    D. Virtual servers.

  • Question 565:

    While preparing to replace an old CAT3 cable with a CAT6 cable to implement VoIP, a facilities employee mistakenly disconnects the entire patch panel, including valid wiring to live workstations. Which of the following should an administrator use in order to connect those ports FIRST?

    A. Toner
    B. Multimeter
    C. Reflectometer
    D. Cable tester

  • Question 566:

    Which of the following reside at a minimum of Layer 3 of the OSI model? (Select TWO).

    A. Hub
    B. Switch
    C. MAC address
    D. IP address
    E. Router

  • Question 567:

    Which of the following would a network administrator MOST likely use to actively discover unsecure services running on a company's network?

    A. IDS
    B. Nessus
    C. NMAP
    D. Firewall

  • Question 568:

    A firewall that detects and prevents attacks from outside the network based on learned data patterns can BEST be described as which of the following?

    A. Signature based IDS
    B. Behavior based IPS
    C. Host based IPS
    D. Network based IDS

  • Question 569:

    Dynamic DNS provides which of the following services?

    A. Automatic registration of host records
    B. Translates public host names to private host names
    C. Provides round robin load balancing for web servers
    D. Provides aliases for additional search suffixes

  • Question 570:

    An IP address is encapsulated at which of the following layers of the OSI model?

    A. Transport
    B. Data link
    C. Network
    D. Application

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