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CompTIA JK0-023 Online Practice Questions and Exam Preparation

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 351:

    Kimf an administratorf wants to list all the network connectons to and from the server. Which of the following commands would MOST likely be used?

    A. traceroute
    B. ping
    C. ipconfg
    D. netstat

  • Question 352:

    Management wants to be sure that the existng wiring infrastructure conforms to CAT5e standards. Which of the following is the correct tool?

    A. Cable certfer
    B. Cable tester
    C. OTDR
    D. Protocol analyier

  • Question 353:

    A technician has low signal strength connectng two wireless bridges. Which of the following could be the problem?

    A. Low PoE watage
    B. Opposing antenna polariiatons
    C. Short distance between antennas
    D. WPA 2 encrypton

  • Question 354:

    A user reports that they are unable to access a new server but are able to access all other network resources. Based on the following frewall rules and network informatonf which of the following ACL entries is the cause? Userns IP: 192.168.5.14

    Server IP: 192.168.5.17 Firewall rules: Permit 192.168.5.16/28 192.168.5.0/28 Permit 192.168.5.0/24 192.168.4.0/24 Permit 192.168.4.0/24 192.168.5.0/24 Deny 192.168.5.0/28 192.168.5.16/28 Deny 192.168.14.0/24 192.168.5.16/28 Deny 192.168.0.0/24 192.168.5.0/24

    A. Deny 192.168.0.0/24 192.168.5.0/24
    B. Deny 192.168.5.0/28 192.168.5.16/28
    C. Deny 192.168.14.0/24 192.168.5.16/28
    D. Implicit Deny rule

  • Question 355:

    Which of the following layers of the OSI model maps to the Network Interface layer of the TCP stack? (Select TWO).

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

  • Question 356:

    Which of the following network tools is used to identfy running services on host devices?

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

  • Question 357:

    Which of the following is the common port used for IMAP?

    A. 25
    B. 53
    C. 143
    D. 443

  • Question 358:

    Which of the following protocols is MOST commonly associated with VoIP?

    A. LDAP
    B. HTTPS
    C. SIP
    D. SCP

  • Question 359:

    A network administrator suspects an employee of using the companyns Internet connecton to download illegal content. Which of the following can be used to inspect ongoing network trafc?

    A. Syslog server
    B. Toner probe
    C. OTDR
    D. Packet snifer

  • Question 360:

    Which of the following OSI layers BEST describes where an HTTP proxy operates?

    A. Transport
    B. Applicaton
    C. Presentaton
    D. Session

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