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CompTIA Network+

Exam Details

  • Exam Code
    :JK0-023
  • Exam Name
    :CompTIA Network+
  • Certification
    :CompTIA Certifications
  • Vendor
    :CompTIA
  • Total Questions
    :1112 Q&As
  • Last Updated
    :Apr 12, 2025

CompTIA CompTIA Certifications JK0-023 Questions & Answers

  • Question 461:

    Kimf a userf reports that the web browser is indicatng the site certfcate is not trusted. Which of the following atacks may be in progress?

    A. Man-in-the-middle

    B. Denial of service

    C. Ping fooding

    D. Smurfng

  • Question 462:

    Which of the following security devices is used in providing packet and MAC address fltering services for the network?

    A. Host-based proxy server

    B. Network-based frewall

    C. IDS

    D. IPS

  • Question 463:

    Lisaf a technicianf is asked to not allow FTP trafc on a network. Which of the following ports should be blocked on the frewall to achieve this?

    A. 21

    B. 22

    C. 23

    D. 25

  • Question 464:

    Lisaf a network administratorf wants to be able to block all already known malicious actvity. Which of the following would allow her to perform this actvity?

    A. Behavioral Based IDS

    B. Signature Based IDS

    C. Behavioral Based IPS

    D. Signature Based IPS

  • Question 465:

    Which of the following authentcaton solutons also provides AAA and uses TCP?

    A. TACACS+

    B. Kerberos

    C. RADIUS

    D. RAS

  • Question 466:

    A proxy server would MOST likely be installed to provide which of the following functons? (Select TWO).

    A. Combined DNS and DHCP hostng

    B. Encrypton

    C. Content fltering

    D. Fault tolerance

    E. Website caching

  • Question 467:

    An applicaton server is placed on the network and the intended applicaton is not working correctly. Which of the following could be used to make sure sessions are being opened properly?

    A. Antvirus scanner

    B. IDS

    C. Packet snifer

    D. Toner probe

  • Question 468:

    Users are reportng wired connectvity drops in a new ofce with brand new CAT6 infrastructure. Which of the following tools should a technician use to BEST troubleshoot this issue?

    A. OTDR

    B. Protocol analyier

    C. Toner probe

    D. Cable certfer

  • Question 469:

    Users report that they are unable to access any external websites. The local intranet is not afected. A network technician has isolated the problem to a Linux-based server. Which of the following commands will enable the technician to view DNS informaton on the Linux-based server?

    A. nbtstat

    B. ipconfg

    C. dig

    D. netstat

  • Question 470:

    A network administrator wants to see what ports are open on a server. Which of the following commands will show open ports?

    A. netstat

    B. tracert

    C. nbtstat

    D. nslookup

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