CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 401:

  A help desk engineer needs to configure two servers to have the same public IP addresses. Which of the following technologies should the engineer use?

  A. NAT

  B. VIP

  C. DNS caching

  D. RFC 1918

  E. SDWAN

  Correct Answer: B

  NAT is what translates the public ip address to the private ip address of the device. VIP (Virtual IP Address) is what can be used to display the same public ip address.

• Question 402:

  A customer calls the help desk to report that a Windows PC is unable to open any websites or access any server shares. The help desk technician suspects there is an issue with the configuration. Which of the following commands should the technician issue FIRST to troubleshoot the issue?

  A. tracert

  B. netstat

  C. arp

  D. ipconfig

  E. nmap

  Correct Answer: D

  ipconfig is the command that the help desk technician should issue first to troubleshoot the issue with the Windows PC. The ipconfig command is used to display the IP configuration of a network interface on a Windows system. By running ipconfig, the technician can check if the PC has a valid IP address, subnet mask, default gateway, and DNS server settings.

• Question 403:

  A network technician receives a support ticket concerning multiple users who are unable to access the company's shared drive. The switch interface that the shared drive is connected to is displaying the following:

  

  Which of the following is MOST likely the issue?

  A. The switchport is shut down.

  B. The cable is not plugged in.

  C. The loopback is not set.

  D. The bandwidth configuration is incorrect.

  Correct Answer: B

• Question 404:

  A network administrator is troubleshooting a PC that cannot connect to the LAN. The administrator runs the ipconfig command at the command prompt and gets the following output:

  

  Which of the following is misconfigured?

  A. Subnet mask

  B. Physical address

  C. DNS server

  D. DHCP server

  Correct Answer: A

  The subnet mask should be in the standard format, such as 255.255.255.0, which is a typical subnet mask for a Class C network. The value provided (225.225.225.224) is not a valid subnet mask and should be corrected to match the appropriate subnet for the network, often 255.255.255.0 for a typical home or small office network.

• Question 405:

  Network users reported that a recent firmware upgrade to a firewall did not resolve the issue that prompted the upgrade. Which of the following should be performed NEXT?

  A. Reopen the service ticket, request a new maintenance window, and roll back to the anterior firmware version.

  B. Gather additional information to ensure users' concerns are not been caused by a different issue with similar symptoms.

  C. Employ a divide-and-conquer troubleshooting methodology by engaging the firewall vendor's support.

  D. Escalate the issue to the IT management team in order to negotiate a new SLA with the user's manager.

  Correct Answer: B

  Before taking any further action, it is important to verify that the problem reported by the users is the same as the one that prompted the firmware upgrade. It is possible that the firmware upgrade did resolve the original issue, but a new or different issue has arisen with similar symptoms. By gathering additional information from the users, such as error messages, screenshots, logs, or network traces, the technician can confirm or rule out this possibility and avoid wasting time and resources on unnecessary steps. Reopening the service ticket, requesting a new maintenance window, and rolling back to the anterior firmware version (A) is a possible option if the firmware upgrade did not resolve the original issue and caused more problems. However, this should not be done without first verifying that the users' concerns are related to the firmware upgrade and not a different issue. Employing a divide-and-conquer troubleshooting methodology by engaging the firewall vendor's support ?is another possible option if the technician needs assistance from the vendor to diagnose or resolve the issue. However, this should also not be done without first gathering additional information from the users to narrow down the scope of the problem and provide relevant details to the vendor. Escalating the issue to the IT management team in order to negotiate a new SLA with the user's manager (D) is not a relevant option at this stage. An SLA (Service Level Agreement) is a contract that defines the expectations and responsibilities of both parties in terms of service quality, availability, performance, and response time. Negotiating a new SLA does not address the root cause of the issue or help to resolve it. Moreover, escalating an issue to management should only be done when all other options have been exhausted or when there is a significant impact or risk to the business.

• Question 406:

  Which of the following devices would be used to extend the range of a wireless network?

  A. A repeater

  B. A media converter

  C. A router

  D. A switch

  Correct Answer: A

  A repeater is a device used to extend the range of a wireless network by receiving, amplifying, and retransmitting wireless signals. It is typically used to extend the range of a wireless network in a large area, such as an office building or a campus. Repeaters can also be used to connect multiple wireless networks together, allowing users to move seamlessly between networks. As stated in the CompTIA Network+ Study Manual, "a wireless repeater is used to extend the range of a wireless network by repeating the signal from one access point to another."

• Question 407:

  After HVAC failures caused network outages, the support team decides to monitor the temperatures of all the devices. The network administrator cannot find a command that will display this information. Which of the following will retrieve the necessary information?

  A. SNMP OID values

  B. NetFlow data export

  C. Network baseline configurations

  D. Security information and event management

  Correct Answer: A

  The network administrator can use the Simple Network Management Protocol (SNMP) to monitor the temperatures of all the devices. SNMP is a widely-used protocol for managing and monitoring network devices, such as routers, switches, servers, and other networking equipment. SNMP allows network administrators to gather information about the performance and status of devices on the network, including temperature readings. To retrieve the temperature information, the administrator will have to configure SNMP on the devices and configure SNMP manager software on their computer. Once the SNMP manager software is configured, it will be able to send SNMP requests to the devices and retrieve information such as temperature, voltage, fan speeds, etc. Many network devices have built-in SNMP support, and the administrator may also need to install SNMP agent software on the devices to enable SNMP monitoring. The administrator can also use some specific command or tool like IPMI (Intelligent Platform Management Interface) or DCIM (Data Center Infrastructure Management) tools for monitoring the temperatures of all the devices.

• Question 408:

  A network administrator Is looking at switch features and is unsure whether to purchase a model with PoE. Which of the following devices that commonly utilize PoE should the administrator consider? (Select TWO)

  A. VoIP phones

  B. Cameras

  C. Printers

  D. Cable modems

  E. Laptops

  F. UPSs

  Correct Answer: AB

  Power over Ethernet (PoE) is a technology that allows network-connected devices to receive power over the same Ethernet cables that are used for data transfer. PoE is commonly used to power devices such as VoIP phones and cameras, making it an ideal choice for network administrators looking for a cost-effective solution. PoE is not typically used for other devices such as printers, cable modems, laptops, and UPSs.

• Question 409:

  Which of the following allows for an devices within a network to share a highly reliable time source?

  A. NTP

  B. SNMP

  C. SIP

  D. DNS

  Correct Answer: A

  Network Time Protocol (NTP) is a protocol used to maintain a highly accurate and reliable clock time on all devices within a network. NTP works by synchronizing the time of all the devices within a network to a single, highly accurate time source. This allows for the time of all the devices to be kept in sync with each other, ensuring a consistent and reliable time source for all devices within the network.

• Question 410:

  An organization is interested in purchasing a backup solution that supports the organization's goals. Which of the following concepts would specify the maximum duration that a given service can be down before impacting operations?

  A. MTTR

  B. RTO

  C. MTBF

  D. RPO

  Correct Answer: B

  The maximum duration that a given service can be down before it impacts operations is often referred to as the Recovery Time Objective (RTO). RTO is a key consideration in any backup and disaster recovery plan, as it determines how quickly the organization needs to be able to recover from a disruption or failure. It is typically expressed in terms of time, and it helps to inform the design and implementation of the backup solution. For example, if an organization has a critical service that must be available 24/7, it may have a very low RTO, requiring that the service be restored within a matter of minutes or even seconds. On the other hand, if the service can be down for a longer period of time without significantly impacting operations, the organization may have a higher RTO. When selecting a backup solution, it is important to consider the organization's RTO requirements and ensure that the solution is capable of meeting those needs. A solution that does not meet the organization's RTO requirements may not be sufficient to ensure the availability of critical services in the event of a disruption or failure.