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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 951:

    At which of the following layers do frames exist? (Select TWO).

    A. OSI model Data link layer

    B. TCP/IP model Network Interface layer

    C. OSI model Physical layer

    D. OSI model Network layer

    E. TCP/IP model Internet layer

  • Question 952:

    Which of the following is the defniton of a DNS server?

    A. Hosts proprietary business applicatons

    B. Translates FQDNns to IP addresses

    C. Provides network IDS/IPS security

    D. Assigns IP addresses to network devices

  • Question 953:

    An administrator is using a packet snifer to try to determine what is causing the trafc on the network. The administrator sees a lot of packets on port 25. Which of the following trafc types is MOST likely using port 25?

    A. SMTP

    B. SSH

    C. DNS

    D. TELNET

  • Question 954:

    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 955:

    Which of the following network protocols is used to resolve FQDNs to IP addresses?

    A. DNS

    B. FTP

    C. DHCP

    D. APIPA

  • Question 956:

    A network technician is troubleshootng a userns connectvity problemf and has determined a probable cause. The technician is at which step in the troubleshootng methodology?

    A. Verify full system functonality

    B. Identfy the problem

    C. Establish a theory

    D. Implement the soluton

  • Question 957:

    A technician is developing a shortcut sheet for the network to be able to assist in future troubleshootng scenarios. Which of the following should the network devices have to ease manageability eforts?

    A. MAC spoofng

    B. Dynamic IPs

    C. MAC fltering

    D. Statc IPs

  • Question 958:

    Which of the following protocols would Kurtf a technicianf use to synchroniie local date and tme of a client workstaton to that of a server?

    A. RTP

    B. NTP

    C. TFTP

    D. ARP

  • Question 959:

    Which of the following is an invalid MAC address?

    A. AA:CE:58:FD:90:08

    B. 44:98:3E:F8:33:23

    C. 56:AD:BX:89:55:54

    D. 94:9E:FE:EE:8C:DF

  • Question 960:

    Which of the following would Joef a technicianf use for a service that needs fast communicaton and is unafected by packet loss?

    A. UDP

    B. ARP

    C. ICMP

    D. TCP

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