CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 741:

  A new employee was given the following information to connect to the corporate wireless network for the first time:

  SSID:CorporateWiFi

  Encryption:WPA2

  Password:SuperSecret!

  The user enters the correct SSID and notices that encryption type or password are not required when configuring the laptop in the office, and the laptop successfully connects to the Internet. When the user brings the laptop to the conference room, a pop-up asks for the CorporateWiFi password. Which of the following is the MOST likely cause of this behavior?

  A. The laptop wireless network card is incompatible with the conference room WAP.
  B. The office walls prevent the employee from making a full connection.
  C. A rogue access point was installed by a company employee.
  D. MAC filtering is only enabled in the conference room.
  C. A rogue access point was installed by a company employee.

• Question 742:

  A technician is tasked with replacing some older RS-232 serial printers. Which of the following ports would the technician most likely find on these printers?

  A. BNC
  B. DB-9
  C. LC
  D. RJ-11
  B. DB-9

• Question 743:

  Which of the following technologies is used on cellular networks?

  A. Ethernet
  B. CDMA
  C. CSMA/CA
  D. POTS
  B. CDMA

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  CDMA is an example of multiple access, which is where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this to be achieved without undue interference between the users CDMA employs spread- spectrum technology and a special coding scheme

• Question 744:

  Joe, a network technician, is troubleshooting in a wiring closet in 2011. The cabling to all the equipment does not match the documentation from 2007. Which of the following configuration management methods has been overlooked?

  A. Change management
  B. System logs
  C. Asset management
  D. Baselining
  A. Change management

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  Change management is the request for to change any configuration which is documented.

• Question 745:

  Which of the following tools would a technician use to terminate CAT6 wires to the inside of the wall jack?

  A. Toner probe
  B. Cable tester
  C. Punch down
  D. Crimper
  C. Punch down

• Question 746:

  An administrator has set up several IPSec and SSL tunnels to terminate on a single device. Which of the following has the administrator deployed?

  A. Proxy Server
  B. Load Balancer
  C. VPN Concentrator
  D. Web-Application Firewall
  C. VPN Concentrator

• Question 747:

  A network administrator is planning to install wireless access points across the enterprise. Which of the following should be considered when installing at remote locations?

  A. PoE
  B. BSSID
  C. MAC filtering
  D. NAT
  A. PoE

• Question 748:

  After a new firewall is installed, users report that they do not have connectivity to the Internet. The output of the ipconfig command shows an IP address of 169.254.0.101. Which of the following ports would need to be opened on the firewall to allow the users to obtain an IP address? (Select TWO).

  A. UDP 53
  B. UDP 67
  C. UDP 68
  D. TCP 53
  E. TCP 67
  F. TCP 68
  B. UDP 67
  C. UDP 68

• Question 749:

  Which of the following is a path vector routing protocol?

  A. RIP
  B. EIGRP
  C. ISIS
  D. OSPF
  E. BGP
  E. BGP

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  Because BGP involves a table of IP networks or "prefixes" which designate network reachability among autonomous systems (AS).

• Question 750:

  An administrator would like to scan for open ports on the subnet and determine if any vulnerable applications are listening. Which of the following tools would the administrator MOST likely use?

  A. Ping
  B. Nessus
  C. IMAP
  D. Telnet
  B. Nessus