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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
    :Jun 28, 2025

CompTIA CompTIA Certifications JK0-023 Questions & Answers

  • Question 261:

    At which layer of the TCP/IP model would cabling exist?

    A. Network Interface

    B. Internet

    C. Applicaton

    D. Transport

  • Question 262:

    A network administrator needs to confgure a port on the switch that will enable all packets on a partcular switch to be monitored. Which of the following would BEST complete this objectve?

    A. Trafc shaping

    B. MAC fltering

    C. Port mirroring

    D. VLAN trunking

  • Question 263:

    A user wants to send informaton and ensure that it was not modifed during transmission. Which of the following should be implemented?

    A. MAC fltering

    B. Digital signatures

    C. MS-CHAP

    D. CHAP

  • Question 264:

    The network technician has recently implemented VLANs on the company network. Ever since this implementatonf sectons within the company can no longer share informaton. While troubleshootngf the technician realiies they are unable to ping a device from another VLAN. Which of the following needs to be confgured to fx this problem?

    A. Clear the ARP table

    B. Add host entries on the userns computer

    C. Confgure 802.1x trunks on the switches

    D. Confgure 802.1q trunks on the switches

  • Question 265:

    Which of the following correctly lists the layers of the OSI model startng at Layer 1?

    A. Data Linkf Physicalf Networkf Transportf Presentatonf Sessionf Applicaton.

    B. Physicalf Data Linkf Networkf Transportf Presentatonf Sessionf Applicaton.

    C. Physicalf Data Linkf Transportf Networkf Sessionf Presentatonf Applicaton.

    D. Physicalf Data Linkf Networkf Transportf Sessionf Presentatonf Applicaton.

  • Question 266:

    Users in several departments are reportng connectvity problems. The technician examines the computer and fnds the following setngs. The IP address is 10.0.1.0 with a subnet mask of 255.255.252.0. The default gateway is 10.0.1.1 and the DNS server is 10.0.0.15. A user can connect to the internet but not servers on other internal subnets. The technician is not able to connect with a server with an IP of 10.0.2.25. Which of the following is MOST likely the problem?

    A. Default gateway

    B. Duplicate IP address

    C. Wrong DNS

    D. Subnet mask

  • Question 267:

    Which of the following antenna types has a fat circular radiaton patern?

    A. Diversity

    B. Yagi

    C. Omni

    D. Patch

  • Question 268:

    Which of the following is associated with DNS reverse lookup iones?

    A. CNAME

    B. TXT

    C. PTR

    D. MX

  • Question 269:

    Which of the following wiring components is used as a central point of terminaton for all network jacks through a building area?

    A. Demarc

    B. CSU

    C. Patch Panel

    D. Smart Jack

  • Question 270:

    Which of the following network topologies is MOST commonly used by online fle sharing websites?

    A. Point to multpoint

    B. Peer-to-peer

    C. Ring

    D. Hybrid

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