CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 491:

  A technician has traced a POTS line to a 110 block. Which of the following devices would the technician MOST likely use to see if the line carries a dial tone?

  A. Toner Probe
  B. Punch Down Tool
  C. Protocol Analyzer
  D. Butt Set
  D. Butt Set

• Question 492:

  After the technician has established a theory of probable cause of a user reported problem, which of the following should the technician do NEXT in the troubleshooting process?

  A. Implement the solution to the problem.
  B. Establish a plan of action.
  C. Identify the problem.
  D. Implement preventative measures.
  B. Establish a plan of action.

• Question 493:

  Which of the following would a technician do to monitor remote traffic through an access point?

  A. Enable an SNMP agent
  B. Enable network mapping
  C. Set monitoring SSID
  D. Select WPA2
  A. Enable an SNMP agent

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  Large networks with hundreds or thousands of nodes are difficult to manage without a large staff to monitor every computer. SNMP, which is widely used in local area networks (LANs), lets you monitor network nodes from a management host. You can monitor network devices such as servers, workstations, printers, routers, bridges, and hubs, as well as services such as Dynamic Host Configuration Protocol (DHCP) or Windows Internet Name Service (WINS).

• Question 494:

  An attack used to find unencrypted information in network traffic is called:

  A. WEP cracking
  B. packet sniffing
  C. ping sweep
  D. social engineering
  B. packet sniffing

• Question 495:

  A network administrator is implementing a wireless honeypot to detect wireless breach attempts. The honeypot must implement weak encryption to lure malicious users into easily breaking into the network. Which of the following should the network administrator implement on the WAP?

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

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  Wired Equivalent Privacy (WEP) is a security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in September 1999, its intention was to provide data confidentiality comparable to that of a traditional wired network.WEP, recognizable by the key of 10 or 26 hexadecimal digits, is widely in use and is often the first security choice presented to users by router configuration tools

• Question 496:

  Which of the following would be used to connect a singlemode fiber cable to a CAT6 connection?

  A. Media converter
  B. T1-crossover
  C. Multimode cable
  D. Coaxial
  A. Media converter

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  Media converters support many different data communication protocols including Ethernet, Fast Ethernet, Gigabit Ethernet, T1/E1/J1, DS3/E3, as well as multiple cabling types such as coax, twisted pair, multi-mode and single-mode fiber optics.

• Question 497:

  Which of the following would allow for a specific device to receive the same IP address from a DHCP server?

  A. Scope
  B. Reservation
  C. Suffix
  D. Lease
  B. Reservation

• Question 498:

  Companies trying to cut down on constant documentation of IP addresses could use which of the following?

  A. Longer lease times
  B. More reservations
  C. Larger scopes
  D. Dynamic IP addressing
  D. Dynamic IP addressing

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  In Dynamic IP addressing all the hosts with private ip address will be patted to the same ip so the administrator will not have to keep track of each and every host with private ip mapped to a static public ip address.

• Question 499:

  Joe, a technician, suspects a virus has infected the network and is using up bandwidth. He needs to quickly determine which workstation is infected with the virus. Which of the following would BEST help Joe?

  A. Web server
  B. Syslog
  C. Network sniffer
  D. SNMP
  C. Network sniffer

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  Network sniffer is a tool to analyze packets that are being exchanged between the hosts and using this Joe can understand whether there was traffic encountered to server or not which was infected.

• Question 500:

  The network technician is troubleshooting a connectivity issue on a CAT5 cable with a wire map and notices that only pins 1, 3, and 6 are mapping correctly. Which of the following pins are open and keeping traffic from flowing correctly?

  A. 2
  B. 4
  C. 5
  D. 8
  A. 2