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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 1071:

    Which of the following defnes an IP address that is NOT routed on the Internet?

    A. Multcast

    B. Public

    C. Private

    D. Classful

  • Question 1072:

    At which layer of the OSI model do MAC addresses operate?

    A. Data Link

    B. Network

    C. Applicaton

    D. Physical

  • Question 1073:

    When a packet that is entering a switch port is encapsulatedf which of the following is the switch performing?

    A. 802.1q

    B. Collision avoidance

    C. Port mirroring

    D. STP

  • Question 1074:

    Which of the following protocols are used to provide accurate tme to network devices?

    A. SMTP

    B. FTP

    C. TLS

    D. NTP

  • Question 1075:

    Multple networked devices running on the same physical hardware that provide central access to applicatons and flesf where each device runs as a piece of sofware are known as:

    A. Virtual desktops.

    B. Switches.

    C. PBXs.

    D. Virtual servers.

  • Question 1076:

    A technician receives a work order that a user can no longer access any external websites. The user is the only one afectedf but can stll access websites by IP address. Which of the following is the MOST likely cause?

    A. The workstaton has been removed from the domain and needs to be re-added in directory services.

    B. The workstaton is confgured to use the IPv4 protocol instead of IPv6.

    C. The workstaton is confgured with an incorrect IP address of the DNS server.

    D. The workstatonns DHCP IP address has expired and has assigned itself an APIPA address.

  • Question 1077:

    The applicaton layer in the TCP/IP model is comparable to which of the following layers in the OSI model?

    A. Layer 2

    B. Layer 5

    C. Layer 6

    D. Layer 7

  • Question 1078:

    Which of the following uses port 23 by default?

    A. TELNET

    B. IMAP

    C. FTP

    D. SNMP

  • Question 1079:

    Which of the following has the LEAST amount of collisions in a domain?

    A. Bridge

    B. Hub

    C. Repeater

    D. Switch

  • Question 1080:

    The TCP/IP applicaton layer contains which of the following OSI layers?

    A. Layers 1f5f6f7

    B. Layers 4f7

    C. Layers 5f6f7

    D. Layer 7

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