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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 421:

    Which of the following preventatve measures would BEST secure a web server from being port scanned by atackers publicly?

    A. Content flter

    B. Proxy server

    C. ACL implicit allow

    D. Firewall

  • Question 422:

    Which of the following network access security methods ensures communicaton occurs over a securedf encrypted channelf even if the data uses the Internet?

    A. MAC fltering

    B. RAS

    C. SSL VPN

    D. L2TP

  • Question 423:

    Which of the following BEST describes a frewall that can be installed via Add/Remove programs on a Windows computer?

    A. Managed

    B. Sofware

    C. Hardware

    D. Wireless

  • Question 424:

    An administrator would like to inspect all trafc fowing over the SMTP protocol on a given network. Which of the following tools would accomplish this? (Select TWO).

    A. Packet snifer

    B. Honeypot

    C. Port mirroring

    D. IPS

    E. Port scanner

    F. IDS

  • Question 425:

    Stateful packet inspecton is a security technology used by which of the following devices?

    A. Unmanaged switch

    B. Hardware frewall

    C. Bridge

    D. IDS

  • Question 426:

    Which of the following can functon in an unsecure mode?

    A. SNMPv3

    B. SSH

    C. SSL

    D. SCP

  • Question 427:

    An administrator determines there are an excessive number of packets being sent to a web server repeatedly by a small number of external IP addresses. This is an example of which of the following atacks?

    A. DDoS

    B. Viruses

    C. Worms

    D. Man-in-the-middle

  • Question 428:

    Which of the following does Kerberos provide?

    A. Non-repudiaton

    B. Accountng

    C. Exchange

    D. Authentcaton

  • Question 429:

    Annf a clientf shares half of a rectangular foor plan with another company and wishes to set up a secure wireless network. The installed antenna limits the signal to her half of the foor. Through analysisf the frequency and channels of surrounding wireless networks have been determined and confguraton changes made accordingly. Which of the following would be the NEXT step in setng up this secure wireless network?

    A. Decrease signal strength on the antenna

    B. Change the wireless channel on the WAP

    C. Change the device placement to further obfuscate the signal

    D. Set up encrypton on the WAP and clients

  • Question 430:

    A NAS appliance has had a failed NIC replaced. Now the NAS appliance is no longer visible on the network. Which of the following is the MOST likely cause of the problem?

    A. The network cable connectng the NAS to the network switch is bad.

    B. The network port that the appliance is connected to is assigned to the wrong VLAN.

    C. Port security on the Ethernet switch has disabled the port.

    D. Firewall needs to be updated for the new NAS device.

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