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N10-006 Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Braindumps CompTIA N10-006 Dumps with VCE and PDF 121-130

September 18, 2017

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2017 Sep CompTIA Official New Released N10-006
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CompTIA Network Certification

Question No: 121 – (Topic 4)

A network technician has received a help desk ticket indicating that after the new wireless access point was installed, all of the media department#39;s devices are experiencing sporadic wireless connectivity. All other departments are connecting just fine and the settings on the new access point were copied from the baseline. Which of the following is a reason why the media department is not connecting?

  1. Wrong SSID

  2. Rogue access point

  3. Placement

  4. Channel mismatch

Answer: C Explanation:

The sporadic wireless connectivity is being caused by interference. Moving the access point to adifferent location would solve the problem.

Question No: 122 – (Topic 4)

A user calls the help desk and states that he was working on a spreadsheet and was unable to print it. However, his colleagues are able to print their documents to the same shared printer. Which of the following should be the FIRST question the helpdesk asks?

  1. Does the printer have toner?

  2. Are there any errors on the printer display?

  3. Is the user able to access any network resources?

  4. Is the printer powered up?

    Answer: C Explanation:

    The user has already provided you with the information relevant to the first step in the 7- step troubleshootingprocess. The next step is to “Question the obvious.” The user has stated: “…his colleagues are able to print their documents to the same shared printer.” The obvious question in this instance is whether the user can access any network resources.

    1. Identify the problem. Information gathering. Identify symptoms. Question users.

      Determine if anything has changed.

    2. Establish a theory of probable cause. Question the obvious.

    3. Test the theory to determine cause:

      When the theory is confirmed, determine the next steps to resolve the problem. If theory is not confirmed, re-establish a new theory or escalate.

    4. Establish a plan of action to resolve the problem and identify potential effects.

    5. Implement the solution or escalate as necessary.

    6. Verify full system functionality and if applicable implement preventive measures.

    7. Document findings, actions, and outcomes.

      Question No: 123 – (Topic 4)

      Which of the following WAN technologies is associated with high latency?

      1. T1

      2. Satellite

      3. Cable

      4. OCx

Answer: B Explanation:

Latency in this instance is the time it takes for the signal to and from the satellite. Since signal has to travel to the satellite, then from the satellite to the ground station, and then out to the Internet (or IP WAN). Not forgetting the return trip, and processing delays.

Question No: 124 – (Topic 4)

A network technician has detected duplicate IP addresses on the network. After testing the behavior of rogue DHCP servers, the technician believes that the issue is related to an unauthorized home router. Which of the following should the technician do NEXT in the troubleshooting methodology?

  1. Document the findings and action taken.

  2. Establish a plan to locate the rogue DHCP server.

  3. Remove the rogue DHCP server from the network.

  4. Identify the root cause of the problem.

    Answer: B Explanation:

    By testing the behavior of rogue DHCP servers and determining that the issue is related to an unauthorized home router, thetechnician has completed the third step in the 7-step troubleshooting process. The next step is to establish a plan of action to resolve the problem and identify potential effects. Establishing a plan to locate the rogue DHCP server meets the requirementsof this step.

    1. Identify the problem. Information gathering. Identify symptoms. Question users.

      Determine if anything has changed.

    2. Establish a theory of probable cause. Question the obvious.

    3. Test the theory to determine cause:

      When the theory isconfirmed, determine the next steps to resolve the problem. If theory is not confirmed, re-establish a new theory or escalate.

    4. Establish a plan of action to resolve the problem and identify potential effects.

    5. Implement the solution or escalate as necessary.

    6. Verify full system functionality and if applicable implement preventive measures.

    7. Document findings, actions, and outcomes.

      Question No: 125 – (Topic 4)

      A network technician has been assigned to install an additional router on a wireless network. The router has a different SSID and frequency. All users on the new access point and the main network can ping each other and utilize the network printer, but all users on the new router cannot get to the Internet. Which of the following is the MOST likely cause of this issue?

      1. The gateway is misconfigured on the new router.

      2. The subnet mask is incorrect on the new router.

      3. The gateway is misconfigured on the edge router.

      4. The SSID is incorrect on the new router.

Answer: A Explanation:

A missing or incorrect default gateway parameter limits communication to the local segment.

The question states: “All users on the new access point and the main network can ping each other and utilize the network printer, but all users on the new router cannot get to the Internet”.

Question No: 126 – (Topic 4)

While troubleshooting a connectivity issue, a network technician determines the IP address of a number of workstations is 169.254.0.0/16 and the workstations cannot access the Internet. Which of the following should the technician check to resolve the problem?

  1. Default gateway address

  2. Misconfigured DNS

  3. DHCP server

  4. NIC failure

Answer: C Explanation:

If a DHCP server fails, the workstations are assigned an address from the 169.254.0.0 address range by Automatic Private IP Addressing (APIPA). APIPA also configures a suitable subnet mask, but it doesn’t configure the system with a default gateway address. This allows communication on the local network, but not externally.

Question No: 127 – (Topic 4)

A network technician has received comments from several users that cannot reach a particular website. Which of the following commands would provide the BEST information about the path taken across the network to this website?

  1. ping

  2. netstat

  3. telnet

  4. tracert

Answer: D Explanation:

The tracert command is used to determine the amount of hops a packet takes to reach a destination. It makesuse of ICMP echo packets to report information at every step in the journey. This is how the path taken across the network is obtained.

Question No: 128 – (Topic 4)

A technician is troubleshooting a client#39;s connection to a wireless network. The client is asked to run a quot;getinfoquot; command to list information about the existing condition.

myClient$ wificard -getinfo agrCtlRSSI:-72 agrExtRSSI:0 state:running

op mode: station lastTxRate:178 MaxRate:300

802.11 auth:open link auth:wpa2-psk

BSSID:0F:33:AE:F1:02:0A

SSID:CafeWireless Channel:149,1

Given this output, which of the following has the technician learned about the wireless

network? (Select TWO).

  1. The WAP is using RC4 encryption

  2. The WAP is using 802.11a

  3. The WAP is using AES encryption

  4. The WAP isusing the 2.4GHz channel

  5. The WAP is using the 5GHz channel

  6. The WAP is using 802.11g

Answer: C,E Explanation:

WPA2 makes use of the Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) encryption protocol, which isan AES based protocol. The output shows that the wireless network operates on channel 149, which is a channel in the 5GHz band.

Topic 5, Industry standards, practices, and network theory

Question No: 129 – (Topic 5)

Which of the following PDUs is used by a connectionless protocol?

  1. Frames

  2. Segments

  3. Streams

  4. Datagram

Answer: D Explanation:

UDP is a connectionless transport protocol that operates in the transport layer of the OSI model. UDP stands for User Datagram Protocol. PDUs (Protocol Data Units) used by UDP are known as Datagrams.

Question No: 130 – (Topic 5)

A company is deploying a new wireless network and requires 800Mbps network throughput. Which of the following is the MINIMUM configuration that would meet this need?

  1. 802.11ac with 2 spatial streams and an 80MHz bandwidth

  2. 802.11ac with 3 spatial streams and a 20MHz bandwidth

  3. 802.11ac with 3 spatial streams and a 40MHz bandwidth

  4. 802.11ac with 4 spatial streams and a 160MHz bandwidth

Answer: A Explanation:

Spatial streaming is used in wireless communications where multiple-input-multiple- output(MIMO) is being used. With MIMO, multiple antennas are used for transmission and reception. MIMO was available in 802.11n but its capabilities have been extended in 802.11ac.

802.11ac supports a mandatory 80 MHz channel bandwidth for stations (vs. 40 MHzmaximum in 802.11n), 160 MHz available optionally and more (up to 8) special streams.

A single antenna and 80 MHz channel bandwidth provides a bandwidth of 433Mbps. In this question, we need a minimum bandwidth of 800Mbps. Two antennas and 80 MHz channel bandwidth provides a bandwidth of 867Mbps and therefore meets the requirement.

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