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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 151:

    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 152:

    In a small ofce environmentf one computer is set up to provide Internet access to three other computers that are not interconnected. This is an example of which of the following topology types?

    A. Peer-to-peer
    B. Point-to-multpoint
    C. Hybrid
    D. Point-to-point

  • Question 153:

    Which of the following commands can Lisaf a technicianf use on a server to display the default router setng?

    A. ping
    B. nslookup
    C. route
    D. arp

  • Question 154:

    Which of the following cable types is MOST commonly used with POTS?

    A. CAT3
    B. Multmode
    C. CAT6
    D. Coaxial

  • Question 155:

    Which of the following ports would have to be allowed through a frewall for POP3 trafc to pass on its default port?

    A. 110
    B. 123
    C. 143
    D. 443

  • Question 156:

    All users on a specifc network segment report losing access to the wired network. During troubleshootngf the network administrator observes link lights on the workstatons. When physically reviewing each switchf the network administrator changes the switch view setngs to Actvity and sees that all port lights remain solid green. Which of the following is MOST likely causing this issue?

    A. STP convergence
    B. Power failure
    C. Excessive bandwidth usage
    D. Broadcast storm

  • Question 157:

    When confguring a WAP for a SOHOf which parameter will BEST limit access to the ofce area?

    A. Signal strength
    B. SSID enable
    C. Encrypton
    D. Password hardening

  • Question 158:

    A server that flters trafc between a WAN and a LAN is which of the following?

    A. Proxy server
    B. RAS server
    C. Default gateway
    D. Email server

  • Question 159:

    Which of the following should be used when throughput to the destnaton network is a priority?

    A. MTU
    B. Hop count
    C. Reliability of the path
    D. Bandwidth

  • Question 160:

    Jeff a userf is having a problem with a POTS line. Which of the following tools would Jef use to make sure the phone lines have a dial tone?

    A. Loopback plugs
    B. But set
    C. Cable certfer
    D. Toner probe

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