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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
    :Mar 27, 2025

CompTIA CompTIA Certifications JK0-023 Questions & Answers

  • Question 1091:

    Which of the following protocols is Kimf a userf utliiing if no handshake or data reliability are required?

    A. TCP

    B. FTP

    C. TFTP

    D. UDP

  • Question 1092:

    Lisaf a network technicianf has determined that the inital theory of probable cause was incorrect. Which of the following would be the NEXT step in the troubleshootng process?

    A. Implement the soluton

    B. Establish a plan

    C. Document fndings

    D. Escalate the issue

  • Question 1093:

    Which of the following OSI layers performs error detecton using a Frame Check Sequence?

    A. Session

    B. Transport

    C. Physical

    D. Data link

  • Question 1094:

    Which of the following is a Class A private IP address?

    A. 4.2.2.2

    B. 10.1.1.45

    C. 169.254.9.15

    D. 192.168.0.100

  • Question 1095:

    Jeff a network technicianf is concerned about the environmental efects of power consumpton and heat from network resources. Limited space is also a concern. Which of the following technologies should be implemented?

    A. Circuit switching

    B. Network address translaton

    C. Power over Ethernet

    D. Virtual servers

  • Question 1096:

    A layer 3 switch can move packets between subnets based on which of the following criteria?

    A. 802.1q tag

    B. Port

    C. Applicaton

    D. IP address

  • Question 1097:

    Which of the following ports should be allowed through a frewall to allow DNS resoluton to occur to an outside DNS server?

    A. 20

    B. 53

    C. 80

    D. 3389

  • Question 1098:

    Which of the following is a reason to use dynamic DNS?

    A. The host IP address is not listed in the frewall.

    B. The host IP address is assigned by DHCP.

    C. Statc routes cannot be used on the host network.

    D. A third-party certfcate is being used.

  • Question 1099:

    Jeff a userf can no longer access the accountng fle sharef but others are stll able to access the share. Which of the following would be the FIRST step in troubleshootng the issue?

    A. Notfy senior management of the issue.

    B. Develop a probable cause theory.

    C. Ask Jef if anything has changed on the system.

    D. Escalate the issue to the vendor.

  • Question 1100:

    A company is about to install a second network connecton with a new ISP. Which of the following routng protocols is the BEST choice?

    A. IS-IS

    B. BGP

    C. OSPF

    D. RIP

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