CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 91:

  Which of the following can be used to decrypt SSL packets which encapsulate internal network addresses in the payload?

  A. Proxy server
  B. Content filter
  C. Load balancer
  D. VPN concentrator
  D. VPN concentrator

• Question 92:

  A company wants to have a security zone to isolate traffic within the firewall. Which of the following could be used?

  A. VPN
  B. ACL
  C. DMZ
  D. VLAN
  C. DMZ

• Question 93:

  The security measure used to reduce vulnerabilities for MOST network devices that require regular application and monitoring is:

  A. patch management
  B. security limitations
  C. documentation
  D. social engineering
  A. patch management

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  A patch is a piece of software designed to fix security vulnerabilities and other bugs, and improving the usability or performance.

• Question 94:

  A technician wants to separate networks on a switch. Which of the following should be configured to allow this?

  A. VLAN
  B. Trunking
  C. Spanning tree
  D. Traffic filtering
  A. VLAN

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  A VLAN is a group of end stations in a switched network that is logically segmented by function, project team, or application, without regard to the physical locations of the users. VLANs have the same attributes as physical LANs, but you can group end stations even if they are not physically located on the same LAN segment.

• Question 95:

  Which of the following network access security methods ensures communication occurs over a secured, encrypted channel, even if the data uses the Internet?

  A. MAC filtering
  B. RAS
  C. SSL VPN
  D. L2TP
  C. SSL VPN

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  SSL VPN consists of one or more VPN devices to which the user connects by using his Web browser. The traffic between the Web browser and the SSL VPN device is encrypted with the SSL protocol or its successor, the Transport Layer Security (TLS) protocol.

• Question 96:

  Which of the following is a Class A IP address?

  A. 10.4.0.1
  B. 169.254.0.1
  C. 192.168.0.1
  D. 254.200.0.1
  A. 10.4.0.1

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  Class A ip address ranges from 10.0.0.0 to 10.255.255.255

• Question 97:

  A technician is troubleshooting a host name being directed to the wrong system. The `arp A. All TCP/IP connections and listening ports
  B. Internet-to-adapter translation tables
  C. Information to help diagnose DNS issues
  D. Active sockets and connections

  B. Internet-to-adapter translation tables

• Question 98:

  A user reports that they keep getting disconnected on the wireless network. After further investigation, the technician confirms that this occurs only in that user's office. Which of the following would MOST likely cause them to lose their connection?

  A. Encryption type
  B. Disabled wireless adapter
  C. SSID mismatch
  D. Interference
  D. Interference

• Question 99:

  A technician is troubleshooting Internet connectivity for a PC. Which of the following is MOST likely the reason for Internet connectivity issues upon inspecting the routing table?

  

  A. The router should be listed as 224.0.0.1
  B. The NIC is set to the wrong subnet mask
  C. The route of last resort is missing
  D. Loopback traffic is weighted higher than NIC interface traffic
  C. The route of last resort is missing

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  The default route is missing from the table.

  It looks like this:

  Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.12 25

• Question 100:

  An organization finds that most of the outgoing traffic on the network is directed at several Internet sites viewed by multiple computers simultaneously. Which of the following performance optimization methods would BEST alleviate network traffic?

  A. Load balancing internal web servers
  B. Redundant network resources
  C. Implement fault tolerance on the WAN
  D. Implement caching engines
  D. Implement caching engines

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  A cache server is a dedicated network server or service acting as a server that saves Web pages or other Internet content locally. By placing previously requested information in temporary storage, or cache, a cache server both speeds up access to data and reduces demand on an enterprise's bandwidth.