CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 451:

  Which of the following standards would apply to a 10GB network link that is 1.86mi (3km)?

  A. 10GBASE-TX
  B. 10GBASE-T
  C. 10GBASE-SR
  D. 10GBASE-LR
  D. 10GBASE-LR

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  Explanation/Reference:

  10GBASE-LR is a standard for 10 Gigabit Ethernet over single-mode fiber that can support distances up to 10 kilometers, making it suitable for a network link that is 1.86 miles (approximately 3 kilometers) long. This standard is designed for long-range communication, which is required in the scenario provided.

• Question 452:

  Which of the following ports is used for secure email?

  A. 25
  B. 110
  C. 143
  D. 587
  D. 587

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  Explanation/Reference:

  Port 587 is typically used for secure email submission, specifically for sending emails securely using the SMTP (Simple Mail Transfer Protocol) with TLS (Transport Layer Security) or SSL (Secure Sockets Layer) encryption. It's commonly used as an alternative to port 25 for secure mail submission by mail clients or applications.

• Question 453:

  A network consultant is setting up a new wireless infrastructure. The new infrastructure is primarily focused on supporting legacy equipment that does not support the newest standards. Which of the following frequency ranges will the consultant most likely have to support?

  A. 2.4GHz
  B. 5GHz
  C. 5.9GHz
  D. 6GHz
  A. 2.4GHz

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  Explanation/Reference:

  The most likely frequency range that the network consultant will have to support is 2.4GHz. This is because the most common legacy wireless standards, 802.11b and 802.11g, use the 2.4GHz range1. IEEE 802.11a uses 5GHz exclusively,

  and 5.9GHz and 6GHz are not widely used by legacy equipment. Therefore, A. 2.4GHz is the correct answer.

  https://www.networkcomputing.com/networking/wireless-beginners-part-1-rf-and-waves

• Question 454:

  Which of the following devices allows local, high-speed Ethernet traffic to be transmitted over twisted-pair telephone lines for WAN connectivity?

  A. Media converter
  B. WLAN controller
  C. Repeater
  D. DSL modem
  D. DSL modem

• Question 455:

  A user is trying to map a network fileshare to a local drive and needs to open a firewall port for this traffic. Which of the following ports needs to be opened to accomplish this task?

  A. 389
  B. 445
  C. 514
  D. 636
  B. 445

• Question 456:

  A network technician needs to correlate security events to analyze a suspected intrusion. Which of the following should the technician use?

  A. SNMP
  B. Log review
  C. Vulnerability scanning
  D. SIEM
  D. SIEM

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  Explanation/Reference:

  SIEM stands for Security Information and Event Management, which is a tool that collects, analyzes, and correlates data from various network devices and sources to provide alerts and reports on security incidents and events. A network technician can use SIEM to correlate security events to analyze a suspected intrusion, as SIEM can help identify the source, target, method, and impact of an attack, as well as provide recommendations for remediation. References: https://www.comptia.org/blog/what-is-siem

• Question 457:

  An administrator recently implemented new SOHO routers for a company's teleworking employees. Before deploying the routers, the administrator changed the default credentials and disabled unnecessary services. Within a few days of deployment, hackers gained access to the routers. Which of the following is the MOST important thing the administrator forgot to do?

  A. Disable unused physical router ports.
  B. Generate new encryption keys.
  C. Upgrade the router firmware.
  D. Create a database of file hashes on the router.
  C. Upgrade the router firmware.

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  Explanation/Reference:

• Question 458:

  A network administrator needs to bring a new building online that houses multiple departments. The departments vary in size, with the smallest having 25 hosts and the largest having 140 hosts. When designing the addressing scheme for the new building, which of the following should the network administrator use lo limit the number of wasted IP addresses?

  A. Public IPs
  B. Private IPs
  C. DHCP
  D. VLSM
  E. Reserved IPs
  D. VLSM

• Question 459:

  A technician is troubleshooting a client's report about poor wireless performance. Using a client monitor, the technician notes the following information:

  

  Which of the following is MOST likely the cause of the issue?

  A. Channel overlap
  B. Poor signal
  C. Incorrect power settings
  D. Wrong antenna type
  A. Channel overlap

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  Explanation/Reference:

  Channel overlap will happen here you need a gap between channels.

• Question 460:

  Which of the following best describe the functions of Layer 2 of the OSI model? (Choose two.)

  A. Local addressing
  B. Error preventing
  C. Logical addressing
  D. Error detecting
  E. Port addressing
  F. Error correcting
  A. Local addressing
  E. Port addressing