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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 381:

    Which of the following network tools is used to identfy running services on host devices?

    A. IDS

    B. IPS

    C. Firewall

    D. NMAP

  • Question 382:

    Which of the following atacks creates a bufer overfow to stop access to a system?

    A. Blue jacking

    B. DoS

    C. Netstat

    D. Man-in-the-middle

  • Question 383:

    An organiiaton recently installed a frewall on the network. Employees must be able to send and receive email from a POP3 server. In which of the following ways should the frewall be confgured? (Select TWO).

    A. Allow TCP port 23

    B. Allow TCP port 25

    C. Allow TCP port 110

    D. Allow UDP port 25

    E. Allow UDP port 110

  • Question 384:

    Afer installing a SOHO wireless routerf Joef the network administratorf notces that all internal RFC 1918 IP addresses are being logged by an Internet web server as coming from the routerns public interface IP address. Which of the following must Joe implement to assign a diferent public IP from the routerns public interface IP address to one of the workstatons in the ofce?

    A. NAT

    B. PAT

    C. DMZ

    D. ACL

  • Question 385:

    Sandyf an administratorf must connect to a remote UNIX server securely. Which of the following would be the MOST secure connecton method?

    A. FTP

    B. PPP

    C. Telnet

    D. SSH

  • Question 386:

    A company wishes to have a wireless signal broadcast only through a specifc stretch of a highway tunnel. Which of the following measures will accomplish this?

    A. WPA encrypton

    B. MAC fltering

    C. Changing antenna type

    D. Decreasing radio strength

  • Question 387:

    Sandyf a home userf wishes to confne a wireless network to devices ONLY inside of her house. Which of the following will accomplish this?

    A. Decreasing radio strength

    B. MAC fltering

    C. WEP encrypton

    D. SSID broadcast disable

  • Question 388:

    Joef a network administratorf needs to forward HTTP trafc from a SOHO frewall public IP to the internal web serverns private IP. Which of the following can Joe implement?

    A. DNS

    B. NAT

    C. PKI

    D. RAS

  • Question 389:

    Before installing a wireless networkf which of the following should Karenf a network technicianf take into consideraton to reduce signal exposure for war drivers?

    A. Device placement

    B. MAC address fltering

    C. User authentcaton

    D. Encrypton protocols

  • Question 390:

    Which of the following is the MOST secure way to prevent malicious changes to a frewall?

    A. SNMPv2 access only

    B. TELNET access only

    C. SSH access only

    D. Console access only

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