CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 131:

  A technician is configuring a new DSL router. The technician can communicate with the LAN, but not the WAN. Which of the following is the MOST likely cause?

  A. Duplicate IP addresses
  B. Bad GBIC
  C. Wrong gateway
  D. Switching loop
  C. Wrong gateway

• Question 132:

  Which of the following is an advantage of dynamic routing?

  A. It can reroute connectivity in the event of failure.
  B. It is the simplest form of routing.
  C. The routes do not change.
  D. The setup and configuration are done manually.
  A. It can reroute connectivity in the event of failure.

• Question 133:

  A small company is looking to install a wireless network to enable its relatively old fleet of laptops to have limited internet access internally. The technician on the project knows that the units do not support modern encryption standards. If backwards compatibility is the greatest concern, which of the following is the MOST appropriate wireless security type to choose?

  A. WEP
  B. WPS
  C. WPA
  D. WPA2
  A. WEP

• Question 134:

  Which of the following network monitoring resources would be used to analyze possible connectivity issues such as duplex mismatches and uptime statistics?

  A. Protocol analyzer
  B. Syslog server
  C. Packet sniffer
  D. IPS logs
  B. Syslog server

• Question 135:

  During a blizzard, a technician decides to work from home but is unable to connect to the company's network. Which of the following is MOST likely taking place at the office?

  A. Switching loop
  B. Wrong DNS
  C. Power failure
  D. Duplicate IP address
  C. Power failure

• Question 136:

  Which of the following standards can operate at 40MHz channel spacing?

  A. 802.11a
  B. 802.11b
  C. 802.11g
  D. 802.11n
  D. 802.11n

• Question 137:

  Which of the following would the telecommunications carrier use to segregate customer traffic over long fiber links?

  A. VLAN
  B. MPLS
  C. VPN
  D. PSTN
  B. MPLS

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  MPLS is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table. The labels identify virtual links (paths) between distant nodes rather than endpoints

• Question 138:

  A company would like their technicians to be able to connect to employee desktops remotely via RDP. Which of the following default port numbers need to be opened on the firewall to support this?

  A. 143
  B. 443
  C. 3389
  D. 8080
  C. 3389

• Question 139:

  Which of the following BEST describes a load balancer?

  A. A device that splits traffic between multiple nodes of a clustered service.
  B. A device that allows multiple computers to access the internet through a single public IP address.
  C. A device that filters internet content based on rules and ACLs.
  D. A device that separates users onto separate WAPs for even distribution.
  A. A device that splits traffic between multiple nodes of a clustered service.

• Question 140:

  A technician has been tasked to set-up a managed switch. Which of the following will the technician need to accomplish this task?

  A. IP address
  B. Switch serial number
  C. VLAN tag
  D. Loopback plug
  A. IP address