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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
    :Jul 06, 2025

CompTIA CompTIA Certifications JK0-023 Questions & Answers

  • Question 551:

    A technician suspects invalid informaton in the local DNS cache of a workstaton. Which of the following commands can be used to clear this?

    A. nslookup

    B. ifconfg

    C. dig

    D. ipconfg

  • Question 552:

    Which of the following commands would be used to identfy how many hops a data packet makes before reaching its fnal destnaton?

    A. route

    B. netstat

    C. traceroute

    D. ping 127.0.0.1

  • Question 553:

    Which of the following would be used on a network to ensure access to resources if a critcal host becomes unavailable?

    A. QoS

    B. CARP

    C. VLAN

    D. DHCP server

  • Question 554:

    An administrator is trying to retrieve management informaton from the network devices on their LAN. Which of the following monitoring resources provides the ability to collect this informaton encrypted over the network?

    A. SNMPv3

    B. VTP

    C. CDP

    D. IPSec

  • Question 555:

    A user is having trouble with their fax machine disconnectng during transmissions. The technician believes that a DSL signal may be on the same line as the fax. Which of the following tools would MOST likely help prove this hypothesis?

    A. Multmeter

    B. Cable tester

    C. Lineman's handset

    D. Toner probe

  • Question 556:

    A large company has experienced Internet slowdowns as users have increased their use of the Internet. Which of the following can the Network Administrator use to determine the amount of bandwidth used by type of applicaton?

    A. Network maps

    B. Trafc analysis

    C. Syslog

    D. ICMP

  • Question 557:

    Which of the following syslog severity codes indicates an emergency and that the system is unusable?

    A. 0

    B. 1

    C. 6

    D. 7

  • Question 558:

    Which of the following BEST describes a load balancer?

    A. A device that splits trafc between multple nodes of a clustered service.

    B. A device that allows multple computers to access the internet through a single public IP address.

    C. A device that flters internet content based on rules and ACLs.

    D. A device that separates users onto separate WAPs for even distributon.

  • Question 559:

    Which of the following reasons would MOST likely be used to implement QoS and trafc shaping solutons?

    A. Redundancy

    B. Fault tolerance

    C. Unifed communicatons

    D. Data integrity requirements

  • Question 560:

    The technician is working on a DNS problem. Which of the following sofware tool is the technician MOST likely to use to troubleshoot this issue?

    A. nslookup

    B. ipconfg

    C. ping

    D. nbtstat

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