CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 661:

  Multiple servers' IP addresses fall within the DHCP scope assigned by the administrator. Which of the following should be implemented to ensure these static IP addresses are not assigned to workstations?

  A. The administrator should create exclusions for the workstations IP addresses.
  B. The administrator should change the servers to utilize DHCP to obtain IP addresses.
  C. The administrator should change the workstations to utilize static IP addresses.
  D. The administrator should create exclusions for the servers IP addresses.
  D. The administrator should create exclusions for the servers IP addresses.

  ---

  Whenever you define the ip pool from which IP addresses are to be dynamically assigned to the users then in order to avoid assignment of static ip address we can creat exclusion for the static ip addresses so that they are not assigned to any other host and this is how we can avoid ip address conflict on the network.

• Question 662:

  Which of the following cable types is unshielded?

  A. STP
  B. Twinax
  C. UTP
  D. Coax
  C. UTP

• Question 663:

  Which of the following reduces the deployment cost of a wireless LAN?

  A. WPA
  B. 802.1x
  C. MIMO
  D. PoE
  D. PoE

  ---

  Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.

• Question 664:

  A company has gone through several upgrades on their network but unfortunately have no way of identifying who approved the upgrades. Which of the following should be implemented to track this type of work?

  A. Change management
  B. Asset management
  C. Access log
  D. Baselines
  A. Change management

• Question 665:

  A company wants to secure its WAPs from unauthorized access. Which of the following is the MOST secure wireless encryption method?

  A. SSID disable
  B. SNMPv3
  C. WEP
  D. WPA2
  D. WPA2

  ---

  WPA2 improves security of Wi-Fi connections by not allowing use of an algorithm called TKIP (Temporal Key Integrity Protocol) that has known security holes (limitations) in the original WPA implementation.

• Question 666:

  A large company has experienced Internet slowdowns as users have increased their use of the Internet. Which of the following can the Network Administrator use to determine the amount of bandwidth used by type of application?

  A. Network maps
  B. Traffic analysis
  C. Syslog
  D. ICMP
  B. Traffic analysis

  ---

  By traffic analysis administrator will come to whether user are using bandwidth for right purpose or not.

• Question 667:

  A technician notices that guests have plugged their laptops into a network wall jack located in the conference room. Which of the following could the technician implement in order to ensure that ONLY employees are able to access network resources?

  A. Port mirroring
  B. VTP configuration
  C. MAC address filtering
  D. Traffic filtering
  C. MAC address filtering

• Question 668:

  CAT6 has how many twisted copper pairs?

  A. 2
  B. 4
  C. 6
  D. 8
  E. 16
  B. 4

• Question 669:

  A technician has been called about intermittent connectivity near IDF 2. Multiple cables were recently pulled through a common conduit. Which of the following is MOST likely the cause of the problem?

  A. Crosstalk
  B. Bad connectors
  C. Wrong DNS
  D. Duplicate IP address
  A. Crosstalk

• Question 670:

  A network technician has been asked to look into a report from the IDS to determine why traffic is being sent from an internal FTP server to an external website. Which of the following tools can be used to inspect this traffic?

  A. Router firewall
  B. Ping and traceroute
  C. Throughput tester
  D. Protocol analyzer
  D. Protocol analyzer