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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 81:

    Which of the following appliances creates and manages a large number of secure remote-access sessionsf and also provides a high availability soluton?

    A. Media converter

    B. Proxy server

    C. VPN concentrator

    D. Load balancer

  • Question 82:

    Which of the following wiring distributon typesf ofen found in company closetsf is used to connect wiring from individual ofces to the main LAN cabling?

    A. MDF

    B. 66 block

    C. IDF

    D. Patch panel

  • Question 83:

    A user reports that some normally accessible external sites are not respondingf but most other sites are responding normally. Which of the following is MOST likely the cause?

    A. VLAN tag mismatch

    B. Wrong subnet mask

    C. Smurf atack

    D. Faulty routng rule

  • Question 84:

    A customer wants to increase frewall security. Which of the following are common reasons for implementng port security on the frewall? (Select TWO).

    A. Preventng dictonary atacks on user passwords

    B. Reducing spam from outside email sources

    C. Shielding servers from atacks on internal services

    D. Blocking external probes for vulnerabilites

    E. Directng DNS queries to the primary server

  • Question 85:

    A company wants to secure its WAPs from unauthoriied access. Which of the following is the MOST secure wireless encrypton method?

    A. SSID disable

    B. SNMPv3

    C. WEP

    D. WPA2

  • Question 86:

    A technician wants to separate networks on a switch. Which of the following should be confgured to allow this?

    A. VLAN

    B. Trunking

    C. Spanning tree

    D. Trafc fltering

  • Question 87:

    Management wants to be sure that the existng wiring infrastructure conforms to CAT5e standards. Which of the following is the correct tool?

    A. Cable certfer

    B. Cable tester

    C. OTDR

    D. Protocol analyier

  • Question 88:

    The network support team is constantly getng calls from users in a specifc area of an ofce building. The users are able to connect to the ofce wireless networkf but they sometmes disconnect or experience very slow download speeds. Which of the following is MOST likely the problem?

    A. Incorrect service set identfer

    B. Low signal strength or interference

    C. Incorrect encrypton scheme

    D. Incorrect IP address or subnet mask

  • Question 89:

    Spanning-Tree Protocol is used with which of the following network devices?

    A. Router

    B. NIC

    C. Switch

    D. DHCP server

  • Question 90:

    In a SOHO environmentf placing a VoIP unit on the outside edge of a LAN router enhances which of the following network optmiiaton methods?

    A. Load balancing

    B. Quality of service

    C. Fault tolerance

    D. Trafc shaping

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