CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 841:

  A technician is investigating why a PC cannot reach a file server with the IP address 192.168.8.129. Given the following TCP/IP network configuration:

  

  Which of the following configurations on the PC is incorrect?

  A. Subnet mask
  B. IPv4 address
  C. Default gateway
  D. IPv6 address
  C. Default gateway

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  Explanation/Reference:

  The default gateway is the IP address of the router that connects the PC to other networks. The default gateway should be on the same subnet as the PC's IPv4 address. However, in this case, the default gateway is 192.168.9.1, which is on a different subnet than the PC's IPv4 address of 192.168.8.15. Therefore, the default gateway configuration on the PC is incorrect and prevents the PC from reaching the file server on another subnet.

• Question 842:

  A network administrator for a small office is adding a passive IDS to its network switch for the purpose of inspecting network traffic. Which of the following should the administrator use?

  A. SNMP trap
  B. Port mirroring
  C. Syslog collection
  D. API integration
  B. Port mirroring

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  Explanation/Reference:

  Port mirroring (also known as SPAN - Switched Port Analyzer) is the process of forwarding a copy of network packets from one port on a network switch to another port, where the packets can be analyzed. In this scenario, the network administrator should use port mirroring to send a copy of the network traffic to the passive IDS (Intrusion Detection System) for inspection without interrupting the normal flow of traffic on the network. This allows the IDS to monitor the network traffic and detect any suspicious or malicious activity.

• Question 843:

  A Chief Information Officer (CIO) wants to control the category of sites that employees access when using the Internet web browser. This objective must be achieved to be compliant with corporate policy and avoid some security and legal risks. Which of the following devices would BEST accomplish this task? (Choose two.)

  A. IDS
  B. Proxy server
  C. Content filter
  D. Virtual firewall
  E. Hypervisor
  F. Load balancer
  B. Proxy server
  C. Content filter

• Question 844:

  A network administrator is troubleshooting the communication between two Layer 2 switches that are reporting a very high runt count. After trying multiple ports on both switches, the issue persists. Which of the following should the network administrator perform to resolve the issue?

  A. Increase the MTU size on both switches.
  B. Recertify the cable between both switches.
  C. Perform a factory reset on both switches.
  D. Enable debug logging on both switches.
  B. Recertify the cable between both switches.

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  Explanation/Reference:

  Runts are frames that are smaller than the minimum frame size (64 bytes) and are typically considered errors in a network. When Layer 2 switches report a high runt count, it often indicates a problem with the physical layer, such as a mismatch or issue with the cabling.

  By trying multiple ports on both switches and still encountering the issue, it's likely that the problem is not limited to a single port or switch. Given this situation, the most appropriate action is to focus on the common element in the communication path, which is the cable connecting the two switches.

  Recertifying the cable involves testing its quality, verifying that it meets the required specifications, and ensuring that it is properly terminated. This can help identify and address any physical issues with the cable that might be causing runts.

• Question 845:

  Which of the following disaster recovery metrics is used to describe the amount of data that is lost since the last backup?

  A. MTTR
  B. RTO
  C. RPO
  D. MTBF
  C. RPO

• Question 846:

  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
  B. VIP

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  Explanation/Reference:

  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 847:

  A firewall administrator is implementing a rule that directs HTTP traffic to an internal server listening on a non-standard socket Which of the following types of rules is the administrator implementing?

  A. NAT
  B. PAT
  C. STP
  D. SNAT
  E. ARP
  B. PAT

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  Explanation/Reference:

  The firewall administrator is implementing a PAT (Port Address Translation) rule that directs HTTP traffic to an internal server listening on a non-standard socket. PAT is a type of NAT (Network Address Translation) that allows multiple devices to share a single public IP address by using different port numbers. PAT can also be used to redirect traffic from one port to another port on the same or different IP address. This can be useful for security or load balancing purposes. For example, a firewall administrator can configure a PAT rule that redirects HTTP traffic (port 80) from the public IP address of the firewall to an internal server that listens on a non-standard port (such as 8080) on its private IP address.

  References: https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13772-12.html

• Question 848:

  Outside traffic from local subnet is using an infernal web server. A technician must apply best practices to ensure outside users can only access the web server and not any other internal resources. Which of the following should the technician do to best addresses the issue?

  A. Move the web server to a perimeter network.
  B. Connect the web server to the WAN.
  C. Connect the server directly to a second port on the cable modem.
  D. Block incoming port 80 and port 443 traffic to the server.
  A. Move the web server to a perimeter network.

• Question 849:

  Which of the following would be best suited for use at the access layer in a three-tier architecture system?

  A. Router
  B. Multilayer switch
  C. Layer 2 switch
  D. Access point
  B. Multilayer switch

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  Explanation/Reference:

  Layer 2 switches can (and do) reside at the access layer, BUT multilayer switches are used at the access layer to efficiently manage local traffic within a network segment while also allowing for inter-VLAN routing.

• Question 850:

  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
  A. SNMP OID values

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  Explanation/Reference:

  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.