CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 841:

  A network administrator is responding to a statement of directon made by senior management to implement network protecton that will inspect packets as they enter the network. Which of the following technologies would be used?

  A. Packet snifer
  B. Stateless frewall
  C. Packet flter
  D. Stateful frewall
  D. Stateful frewall

• Question 842:

  A technician tests a cable going to the patch panel and notces the following output from the cable tester: 1------------------1 2------------------2 3------------------3 4------------------4 5------------------5 6------------------6 7------------------7 8-- --8 On a T568A standard CAT5e cablef which of the following wire strands is the cause of this connectvity issue?

  A. White Orange
  B. Solid Brown
  C. Solid Orange
  D. White Green
  D. White Green

• Question 843:

  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
  B. DoS

• Question 844:

  An organiiaton wants to perform maintenance on any of its web servers without afectng the service availability during a scheduled change window. Which of the following network devices would be required to provide this functonality?

  A. Router
  B. Forward proxy
  C. Load balancer
  D. Firewall
  C. Load balancer

• Question 845:

  Which of the following technologies is used to connect public networks using POTS lines?

  A. OC3
  B. OC12
  C. PSTN
  D. Cable
  C. PSTN

• Question 846:

  An 802.11b wireless network has a maximum data rate of:

  A. 11 Mbps.
  B. 20 Mbps.
  C. 28 Mbps.
  D. 54 Mbps.
  A. 11 Mbps.

• Question 847:

  Which of the following network devices builds a table of ports to MAC addresses to forward packets only to necessary ports?

  A. Switch
  B. Hub
  C. Router
  D. Repeater
  A. Switch

• Question 848:

  It has been suspected that one of the users is using the network inappropriately. As a preventve measure HR has authoriied the IT department to enable port mirroring on the userns network port. Which of the following devices would be used to monitor the network actvity?

  A. Port analyier
  B. Multmeter
  C. Network snifer
  D. Cable certfer
  C. Network snifer

• Question 849:

  A technician installs a wireless router on an existng network by connectng it directly to the frewall. By defaultf the main network is a Class A networkf while the wireless network is a Class C network. Afer the wireless router is installedf users connected to the wireless network report they are unable to connect to the Internet. Which of the following needs to be confgured to BEST resolve this issue?

  A. Confgure the main network to Class C
  B. Allow for duplicate IP addresses
  C. Allow the main network to handle DHCP
  D. Create a spanning tree to prevent switching loops
  C. Allow the main network to handle DHCP

• Question 850:

  Users notce a problem with their network connectvity when additonal lights are turned on. Which of the following would be the cause for this problem?

  A. DDOS
  B. Cross talk
  C. Open short
  D. EMI
  D. EMI