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CompTIA JK0-023 Online Practice Questions and Exam Preparation

JK0-023 Exam Details

  • Exam Code
    :JK0-023
  • Exam Name
    :CompTIA Network+
  • Certification
    :CompTIA Certifications
  • Vendor
    :CompTIA
  • Total Questions
    :1112 Q&As
  • Last Updated
    :May 31, 2026

CompTIA JK0-023 Online Questions & Answers

  • Question 141:

    A company is about to install a second network connecton with a new ISP. Which of the following routng protocols is the BEST choice?

    A. IS-IS
    B. BGP
    C. OSPF
    D. RIP

  • Question 142:

    Jeff an end userf has plugged in both ends of the same network cable to two adjacent jacks. Both ports are connected to the same switch in the IDF. Which of the following will MOST likely happen?

    A. VLAN malfuncton
    B. Broadcast storm
    C. Quality of Service loss
    D. Duplicate IP addresses

  • Question 143:

    Which of the following is a Class A IP address?

    A. 10.4.0.1
    B. 169.254.0.1
    C. 192.168.0.1
    D. 254.200.0.1

  • Question 144:

    Which of the following allows 802.11n higher transfer speeds than the previous wireless standards?

    A. Dual frequency
    B. Enhanced encrypton
    C. MIMO technology
    D. Backwards compatbility

  • Question 145:

    Which of the following is the MAXIMUM distance a single 1000BaseT segment can cover?

    A. 100 kilometers (62 miles)
    B. 10 kilometers (6 miles)
    C. 1000 meters (3281 feet)
    D. 100 meters (328 feet)

  • Question 146:

    Which of the following BEST describes a frewall that can be installed via Add/Remove programs on a Windows computer?

    A. Managed
    B. Sofware
    C. Hardware
    D. Wireless

  • Question 147:

    Which of the following uses SSL encrypton?

    A. SMTP
    B. FTP
    C. HTTPS
    D. SNMP

  • Question 148:

    A network technician is confguring a wireless network. To avoid interference from other wireless networks in the areaf the technician should change which setng?

    A. Channel
    B. SSID
    C. Firewall rule
    D. Encrypton

  • Question 149:

    Which of the following is used to verify confguraton updates on a frewall?

    A. Signature identfcaton
    B. Access control lists
    C. Scanning services
    D. Content fltering

  • Question 150:

    Which of the following VPN methods is BEST used for connectng a remote ofce to the main company ofce?

    A. WEP-to-WPA
    B. RDP-to-RAS
    C. Client-to-site
    D. Site-to-site

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