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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 301:

    A technician is troubleshootng a host name being directed to the wrong system. The `arp n command line utlity is used to identfy and display which of the following?

    A. All TCP/IP connectons and listening ports

    B. Internet-to-adapter translaton tables

    C. Informaton to help diagnose DNS issues

    D. Actve sockets and connectons

  • Question 302:

    A company wants to simplify network authentcaton for their users. Which of the following would be used to implement wireless security with single sign-on?

    A. WPA2 enterprise

    B. WEP

    C. Stateful frewall

    D. PAT

  • Question 303:

    Which of the following is a square shaped fber connector that is slightly smaller than a standard copper network cable connector?

    A. BNC

    B. FSMA

    C. MT-RJ

    D. ST

  • Question 304:

    Which of the following subnet masks indicate a subnet with exactly 254 assignable IP addresses?

    A. 255.0.0.0

    B. 255.255.0.0

    C. 255.255.255.0

    D. 255.255.255.254

  • Question 305:

    When installing new WAPs in a small ofcef which of the following is the BEST way to physically mitgate the threats from war driving?

    A. Implement multple wireless encrypton techniques.

    B. Implement PoE on each WAP.

    C. Decrease signal strength.

    D. Increase signal strength.

  • Question 306:

    Which of the following switches is used with ARP to display the cache entry for a specifc IP address?

    A. -a

    B. -d

    C. -g

    D. -s

  • Question 307:

    A company wants to have a security ione to isolate trafc within the frewall. Which of the following could be used?

    A. VPN

    B. ACL

    C. DMZ

    D. VLAN

  • Question 308:

    Afer a power failuref several users are unable to connect to network devices at the remote ofce. Which of the following is the MOST likely cause of the issue?

    A. Bad cable

    B. Missing route

    C. Duplicate IP address

    D. Switching loop

  • Question 309:

    Which of the following ports is used by Telnet?

    A. 21

    B. 23

    C. 80

    D. 143

  • Question 310:

    A technician is not getng a link light on two switches connected by a fber cable. Afer the cable tests goodf which of the following should the technician check NEXT?

    A. Open shorts

    B. Excessive DB loss

    C. TXRX reversed

    D. Split cables

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