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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 271:

    Which of the following ports does IMAP use by default?

    A. 110

    B. 123

    C. 143

    D. 443

  • Question 272:

    Which of the following cables would BEST be used to extend a network through an 80 feet (262 meters) machine shop that has many high voltage machines and generators running?

    A. CAT5

    B. CAT6

    C. Coaxial

    D. Fiber

  • Question 273:

    During business hoursf users at a small ofce are reportng that all of a sudden they are unable to reach any host on the Internetf but they can stll use the network shares to transfer fles within the ofce. Which of the following is the MOST likely cause of the outage?

    A. Wrong gateway

    B. Failed router

    C. Bad switch module

    D. Incorrect VLAN

  • Question 274:

    A network administrator is confguring PXE boot to reimage a computer lab. Which of the following must be confgured on the existng DHCP server to specify the IP address of the imaging server from which the clients must boot?

    A. Scope

    B. Reservaton

    C. Opton

    D. Lease

  • Question 275:

    A company has a total of two public IP addresses and must allow 150 devices to connect to the Internet at the same tme. Which of the following is the BEST opton for connectvity?

    A. VLSM

    B. NAT

    C. CIDR

    D. PAT

  • Question 276:

    Which of the following is used to allow multple sources on a single optcal cable?

    A. HSPA+

    B. MIMO

    C. DWDM

    D. SONET

  • Question 277:

    At which of the following layers of the OSI model is the Logical Link Control found?

    A. Layer 2

    B. Layer 3

    C. Layer 4

    D. Layer 5

  • Question 278:

    A technician is terminatng a new run of network cables to a 110 block. Which of the following tools would the technician use?

    A. Loopback plug

    B. Crimper tool

    C. Punch down tool

    D. Cable tester

  • Question 279:

    Which of the following is MOST commonly used with a fber-optc network backbone?

    A. 100BaseFX

    B. 100BaseT

    C. 100BaseTX

    D. 1000BaseCX

  • Question 280:

    Assigning IP addresses from a pool of predetermined available addresses is the role of which of the following network appliances?

    A. RADIUS

    B. DNS

    C. DHCP

    D. IDS

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