CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 1031:

  At which layer of the OSI model do MAC addresses operate?

  A. Data Link
  B. Network
  C. Applicaton
  D. Physical
  A. Data Link

• Question 1032:

  A new technician has been tasked with implementng a QoS policy for the Network. The technician decides it would be best to monitor the informaton traversing the network to gain statstcal informaton on ports and protocols utliied. Which of the following tools should the technician use to complete this objectve QUICKEST?

  A. Trafc analyier
  B. Network snifer
  C. SNMPv3
  D. System logs
  A. Trafc analyier

• Question 1033:

  Lisaf a network technicianf is atemptng to map a FQDN to an internal server at the address of 10.0.0.15 without NAT/PAT. Which of the following is the reason this will ultmately not work?

  A. This is a private address which cannot be seen by external users.
  B. The address does not have the appropriate subnet mask assigned.
  C. This is a public address which can only be seen by internal users.
  D. This is a private address which can only be seen by external users.
  A. This is a private address which cannot be seen by external users.

• Question 1034:

  A NAS appliance has had a failed NIC replaced. Now the NAS appliance is no longer visible on the network. Which of the following is the MOST likely cause of the problem?

  A. The network cable connectng the NAS to the network switch is bad.
  B. The network port that the appliance is connected to is assigned to the wrong VLAN.
  C. Port security on the Ethernet switch has disabled the port.
  D. Firewall needs to be updated for the new NAS device.
  C. Port security on the Ethernet switch has disabled the port.

• Question 1035:

  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
  A. Decreasing radio strength

• Question 1036:

  Discoverf Oferf Requestf and Acknowledge are the steps for which of the following protocols?

  A. DNS
  B. DOS
  C. DHCP
  D. DSL
  C. DHCP

• Question 1037:

  A network technician has just upgraded a switch. The new switchns IP range and subnet mask correctly match other network devices. The technician cannot ping any device outside of the switchns own IP subnet. The previous switch worked correctly with the same setngs. Which of the following is MOST likely the problem?

  A. The proxy server is set incorrectly.
  B. The Ethernet cable is pinched.
  C. The network gateway is set incorrectly.
  D. The IP address is set incorrectly.
  C. The network gateway is set incorrectly.

• Question 1038:

  Which of the following is the MOST appropriate to use when routng Internet trafc through multple ISP connectons?

  A. BGP
  B. SNAT
  C. RIP
  D. GPG
  A. BGP

• Question 1039:

  Which of the following TCP/IP model layers does the OSI model Data Link layer map to?

  A. Applicaton
  B. Transport
  C. Internet
  D. Network Interface
  D. Network Interface

• Question 1040:

  A technician needs to make a web server with a private IP address reachable from the Internet. Which of the following should the technician implement on the company frewall?

  A. DOCSIS
  B. NAT
  C. CIDR
  D. VPN
  B. NAT