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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 231:

    Which of the following utlites would a technician use to determine the locaton of lost packets on a routed network?

    A. ping

    B. nslookup

    C. route

    D. tracert

  • Question 232:

    Which of the following needs to be confgured on a switch to use a packet snifer?

    A. Port trunking

    B. Port mirroring

    C. Tagged VLAN

    D. Untagged VLAN

  • Question 233:

    Which of the following wireless standards is capable of ONLY operatng on 5.8GHi?

    A. 802.11a

    B. 802.11b

    C. 802.11g

    D. 802.11n

  • Question 234:

    Which of the following protocols are used to connect devices in a secure manner? (Select TWO).

    A. TELNET

    B. SSH

    C. RDP

    D. HTTP

    E. DNS

    F. FTP

  • Question 235:

    Tenants access multple wireless networks in a building. Users report intermitent connectvity. Which of the following is the MOST likely cause of the problem?

    A. The channels are overlapping with other wireless networks and should be changed.

    B. The SSIDs are incompatble and should be renamed.

    C. The users have incompatble wireless network cards and should upgrade.

    D. The default idle period for logof is too short and should be changed to a longer limit.

  • Question 236:

    A small ofce home ofce (SOHO) customer is going to be replacing their switch. The customer also wants to add a WAP in a dropped ceiling; howeverf there are no power outlets above the drop ceilingf but there is a CAT5e network jack. Which of the following technologies should the new switch have to allow this WAP to be placed where the customer requestsf without any other major changes to the environment?

    A. PoE

    B. Layer 3 switching

    C. STP

    D. VLAN

  • Question 237:

    Which of the following default ports would need to be open on a frewall to allow remote desktop access?

    A. 143

    B. 443

    C. 3389

    D. 8080

  • Question 238:

    Afer plugging a cable into a computerf a user reports there is no network access. Which of the following tools would the technician MOST likely check to verify that the cable was crimped correctly?

    A. Punch down tool

    B. Cable certfer

    C. Loopback plug

    D. Toner probe

  • Question 239:

    Which of the following protocols would be used to send email to an email server?

    A. NTP

    B. FTP

    C. SNMP

    D. SMTP

  • Question 240:

    A user is unable to print to a network printer. Which of following is the FIRST step that a technician should take to troubleshoot the issue?

    A. Identfy the problem.

    B. Establish a plan of acton to resolve the problem.

    C. Establish a theory of probable cause.

    D. Implement preventatve measures.

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