CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 311:

  A new company moved into a corporate center. Users in the shared lobby are experiencing disconnects on their mobile devices. Which of the following is the BEST tool a network technician could use to troubleshoot the issue?

  A. Port scanner
  B. Protocol analyzer
  C. NetFlow analyzer
  D. Wi-Fi analyzer
  D. Wi-Fi analyzer

• Question 312:

  A network technician has determined the cause of a network disruption. Which of the following is the NEXT step for the technician to perform?

  A. Validate the findings in a top-to-bottom approach
  B. Duplicate the issue, if possible
  C. Establish a plan of action to resolve the issue
  D. Document the findings and actions
  C. Establish a plan of action to resolve the issue

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  Explanation/Reference:

  Once the network technician has determined the cause of a network disruption, the next step would be to establish a plan of action to resolve the issue. This plan should detail the steps that need to be taken to fix the problem and restore normal network operations. The plan should take into consideration the scope of the problem, the resources available, and the potential impact on the business.

• Question 313:

  A user's computer is having trouble reaching a certain website Other branch locations do not have any issues reaching this website, and the user can reach all other websites A technician suspects there is a failure at an upstream router under The ISPs control. Which of the following commands should the technician run to confirm this suspicion''

  A. tepdump
  B. arp
  C. traeert
  D. nmp
  E. route
  E. route

• Question 314:

  An application team is deploying a new application. The application team would like the network team to monitor network performance and create alerts if fluctuations in the round-trip time occur for that traffic. Which of the following should the network team monitor to meet this requirement?

  A. Bandwidth
  B. Latency
  C. Loss
  D. Cyclic redundancy check
  B. Latency

• Question 315:

  Which of the following would be increased by adding encryption to data communication across the network?

  A. Availability
  B. Integrity
  C. Accountability
  D. Confidentiality
  D. Confidentiality

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  Explanation/Reference:

  Encryption Increases the Integrity of Our Data

  This will prevent hackers from intercepting communications and tampering with the data.

  Encryption can help prevent data breaches during transfer and storage. If an employee loses a company device like a phone or laptop, encrypted data may still be secure. Encrypted communication lines can allow sensitive data to transfer without risk toward a security breach.

• Question 316:

  A user reports a laptop wireless connection is working at the user's desk but not in a recent building addition. A network administrator logs into the wireless controller, searches for the user's MAC address, and receives the following results:

  

  Which of the following describes the reason for the issue?

  A. Frequency mismatch
  B. Distance limitation
  C. Channel overlap
  D. Wrong SSID
  B. Distance limitation

• Question 317:

  A network technician is attempting to increase throughput by configuring link port aggregation between a Gigabit Ethernet distribution switch and a Fast Ethernet access switch. Which of the following is the BEST choice concerning speed and duplex for all interfaces that are participating in the link aggregation?

  A. Half duplex and 1GB speed
  B. Full duplex and 1GB speed
  C. Half duplex and 10OMB speed
  D. Full duplex and 100MB speed
  D. Full duplex and 100MB speed

• Question 318:

  A network administrator is troubleshooting a network connectivity issue. The workstation can connect to the internet but not to internal network resources. Which of the following is most likely the cause of the issue?

  A. APIPA address
  B. Rogue DHCP server
  C. Unreachable DNS server
  D. Incorrect NAT settings
  D. Incorrect NAT settings

• Question 319:

  A network engineer is surveying the existing wireless infrastructure to propose additional changes to increase throughput. The SSID is already on an uncongested 5GHz frequency. Which of the following should the engineer configure?

  A. Channel bonding
  B. 802.11a
  C. Dual-band frequency
  D. An omnidirectional antenna
  A. Channel bonding

• Question 320:

  A customer is hosting an internal database server. None of the users are able to connect to the server, even though it appears to be working properly. Which of the following is the best way to verify traffic to and from the server?

  A. Protocol analyzer
  B. nmap
  C. ipconfig
  D. Speed test
  A. Protocol analyzer

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  Explanation/Reference:

  A protocol analyzer is the best way to verify traffic to and from the server. A protocol analyzer, also known as a packet sniffer or network analyzer, is a tool that captures and analyzes the network packets that are sent and received by a device. A protocol analyzer can show the source and destination IP addresses, ports, protocols, and payload of each packet, as well as any errors or anomalies in the network communication. A protocol analyzer can help troubleshoot network connectivity issues by identifying the root cause of the problem, such as misconfigured firewall rules, incorrect routing, or faulty network devices12. To use a protocol analyzer to verify traffic to and from the server, the customer can follow these steps: Install a protocol analyzer tool on a device that is connected to the same network as the server, such as Wireshark3 or Microsoft Network Monitor4. Select the network interface that is used to communicate with the server, and start capturing the network traffic. Filter the captured traffic by using the IP address or hostname of the server, or by using a specific port or protocol that is used by the database service. Analyze the filtered traffic and look for any signs of successful or failed connection attempts, such as TCP SYN, ACK, or RST packets, or ICMP messages. If there are no connection attempts to or from the server, then there may be a problem with the network configuration or device settings that prevent the traffic from reaching the server. If there are connection attempts but they are rejected or dropped by the server, then there may be a problem with the server configuration or service settings that prevent the traffic from being accepted by the server. The other options are not the best ways to verify traffic to and from the server. nmap is a tool that can scan a network and discover hosts and services, but it cannot capture and analyze the network packets in detail. ipconfig is a command that can display and configure the IP settings of a device, but it cannot monitor or test the network communication with another device. Speed test is a tool that can measure the bandwidth and latency of a network connection, but it cannot diagnose or troubleshoot specific network problems.