CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 961:

  A network technician is troubleshooting an application issue. The technician is able to recreate the issue in a virtual environment. According to the troubleshooting methodology, which of the following actions will the technician most likely perform NEXT?

  A. Gather information from the initial report.

  B. Escalate the issue to a supervisor.

  C. Implement a solution to resolve the issue.

  D. Establish a theory of probable cause.

  Correct Answer: D

  Establish a Theory of Probable Cause I'd like to start by pointing out the impreciseness of the words in this step. Words such as theory and probable indicate a guess on your part, even if it is a guess backed by data. The way this step is written acknowledges that the root cause (step one) may not have been accurately identified. However, the cause is specific enough to begin troubleshooting.

  This stage may require significant research on your part. Vendor documentation, your organization's own documentation and a good old-fashioned Google search may all be required to provide the basis for your theory.

  Specific steps here may include:

• Question 962:

  Which of the following types of datacenter architectures will MOST likely be used in a large SDN and can be extended beyond the data center? (Choose two.)

  A. iSCSI

  B. FCoE

  C. Three-tiered network

  D. Spine and leaf

  E. Top-of-rack switching

  Correct Answer: D

• Question 963:

  A network technician reviews an entry on the syslog server and discovers the following message from a switch:

  SPANNING-TREE Port 1/1 BLOCKED

  Which of the following describes the issue?

  A. A loop was discovered, and the impact was mitigated.

  B. An incorrectly pinned cable was disconnected.

  C. The link-local address on the port is incorrect.

  D. The port was shut down, and it needs to be reactivated.

  Correct Answer: A

  The message "SPANNING-TREE Port 1/1 BLOCKED" indicates that a loop was discovered on port 1/1 and the spanning-tree protocol (STP) blocked the port to prevent the loop from causing a broadcast storm. The "BLOCKED" status is a normal part of the STP process, and it is used to prevent loops in the network. This is the most likely cause of the issue.

• Question 964:

  A company just migrated its email service to a cloud solution. After the migration, two-thirds of the internal users were able to connect to their mailboxes, but the connection fails for the other one-third of internal users. Users working externally are not reporting any issues. The network administrator identifies the following output collected from an internal host:

  1.

  c:\user> nslookup newmail.company.com

  2.

  Non-Authoritative answer:

  3.

  Name: newmail.company.com

  4.

  IPs: 3.219.13.186, 64.58.225.184, 184.168.131.243

  Which of the following verification tasks should the network administrator perform NEXT?

  A. Check the firewall ACL to verify all required IP addresses are included.

  B. Verify the required router PAT rules are properly configured.

  C. Confirm the internal DNS server is replying to requests for the cloud solution.

  D. Validate the cloud console to determine whether there are unlicensed requests.

  Correct Answer: A

  The output of the nslookup command indicates that the newmail.company.com domain name resolves to three different IP addresses, which suggests that the email service has been migrated to a cloud solution. However, one-third of the internal users are not able to connect to their mailboxes, which may indicate that the firewall is blocking traffic to the cloud email service.

• Question 965:

  A technician is documenting an application that is installed on a server and needs to verify all existing web and database connections to the server. Which of the following tools should the technician use to accomplish this task?

  A. tracert

  B. ipconfig

  C. netstat

  D. nslookup

  Correct Answer: C

  Netstat is a command-line utility that allows the technician to view active TCP/IP connections and their status. The technician can use the command "netstat -an" to check all existing connections, including web and database connections to the server. This will show the status of the connections, the local and remote IP addresses, and the port numbers being used.

• Question 966:

  A technician is assisting a user who cannot access network resources when the workstation is connected to a VoIP phone. The technician identifies the phone as faulty and replaces it. According to troubleshooting methodology, which of the following should the technician do NEXT?

  A. Implement the solution.

  B. Test the theory.

  C. Duplicate the issue.

  D. Document the findings.

  E. Verify functionality.

  Correct Answer: E

  According to troubleshooting methodology, after identifying the faulty VoIP phone and replacing it, the technician should verify that the issue has been resolved by testing the workstation's access to network resources. This step is known as "Verifying Full System Functionality" or "Verifying the solution has been properly implemented" and it is the next step after implementing the solution.

• Question 967:

  A network switch was installed to provide connectivity to cameras monitoring wildlife in a remote location. The organization is concerned that intruders could potentially leverage unattended equipment in the remote location to connect rogue devices and gain access to the organization's resources. Which of the following techniques would BEST address the concern?

  A. Configure port security using MAC filtering.

  B. Manually register the cameras on the switch address table.

  C. Activate PoE+ on the active switchports.

  D. Disable Neighbor Discovery Protocol on the switch.

  Correct Answer: A

  Configure port security using MAC filtering would be the BEST technique to address the concern. Port security can be used to restrict access to an interface by limiting the MAC addresses that are allowed to send packets through the port. By configuring port security with MAC filtering, only the authorized MAC addresses of the cameras will be allowed to send packets through the switch ports, preventing rogue devices from connecting to the organization's resources.

• Question 968:

  Which of the following is required when connecting an endpoint device with an RJ45 port to a network device with an ST port?

  A. A media converter

  B. A bridge

  C. An MDIX

  D. A load balancer

  Correct Answer: A

• Question 969:

  Which of the following cable types would MOST likely be used to provide high-speed network connectivity between nearby buildings?

  A. UTP

  B. Coaxial

  C. Fiber

  D. Cat 5

  E. Twinaxial

  Correct Answer: C

• Question 970:

  Which of the following is the physical security mechanism that would MOST likely be used to enter a secure site?

  A. A landing page

  B. An access control vestibule

  C. A smart locker

  D. A firewall

  Correct Answer: B

  Reference: https://en.wikipedia.org/wiki/Mantrap_(access_control)