JK0-023 Exam Details

  • Exam Code
    :JK0-023
  • Exam Name
    :CompTIA Network+
  • Certification
    :CompTIA Certifications
  • Vendor
    :CompTIA
  • Total Questions
    :1112 Q&As
  • Last Updated
    :May 31, 2026

CompTIA JK0-023 Online Questions & Answers

  • Question 901:

    Lisaf a consultantf is inspectng an ofce that reports frequent wireless issues. Upon scanning the network broadcastng in the vicinity of the ofcef seven SSIDs are found. The companyns Wi-Fi network and three others all share channel six. Which of the following is MOST likely causing the issue?

    A. Frequency interference
    B. Low signal strength
    C. Standard mismatch
    D. Incorrect channel

  • Question 902:

    A user informs the network administrator of increasingly common wireless connecton problems. The administrator determines the user has recently received a new cordless phone. The phone is MOST likely causing which of the following conditons?

    A. Signal strength latency
    B. Bouncing signal
    C. Interference
    D. Crosstalk

  • Question 903:

    When Jeff a technicianf is troubleshootng a problemf which of the following is the NEXT step afer verifying full system functonality?

    A. Establish a plan of acton to resolve the problem and identfy potental efects.
    B. Implement the soluton.
    C. Establish a theory of probable cause.
    D. Document fndingsf actonsf and outcomes.

  • Question 904:

    An administrator has created several virtual machines on the same host server and requires them to each be on separate VLANs. Which of the following should the administrator confgure to meet this goal?

    A. Set the VLAN preferences on the host's NIC
    B. Create each VLAN on the host's virtual switch
    C. Change the virtual machine NIC setngs from private to bridged
    D. Create each VLAN on the host's gateway router

  • Question 905:

    A network technician is troubleshootng intermitent issues with VoIP call quality. A throughput tester can help assess the functonality of which of the following?

    A. LLDP
    B. VLAN tagging
    C. QoS
    D. SIP trunking

  • Question 906:

    Data arranged into packets would be on which of the following layers of the OSI model?

    A. Datagram
    B. Transport
    C. Presentaton
    D. Network

  • Question 907:

    During business hoursf users at a small ofce are reportng that all of a sudden they are unable to reach any host on the Internetf but they can stll use the network shares to transfer fles within the ofce. Which of the following is the MOST likely cause of the outage?

    A. Wrong gateway
    B. Failed router
    C. Bad switch module
    D. Incorrect VLAN

  • Question 908:

    Which of the following is needed when using WPA2-Enterprise wireless encrypton?

    A. TFTP
    B. RADIUS
    C. LDAP
    D. IPSec

  • Question 909:

    Which of the following describes a manually entered route?

    A. Statc
    B. Dynamic
    C. Multcast
    D. Unicast

  • Question 910:

    Blocking a known malicious web address by using the ACL on the frewall is an example of which of the following?

    A. IP fltering
    B. Applicaton fltering
    C. MAC fltering
    D. Port fltering

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