CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 1211:

  Branch users are experiencing issues with videoconferencing. Which of the following will the company MOST likely configure to improve performance for these applications?

  A. Link Aggregation Control Protocol

  B. Dynamic routing

  C. Quality of service

  D. Network load balancer

  E. Static IP addresses

  Correct Answer: C

  Qualityof Service (QoS) can be configured for latency-sensitive applications, such as Voice over IP (VoIP).

• Question 1212:

  Which of the following can be used to centrally manage credentials for various types of administrative privileges on configured network devices?

  A. SSO

  B. TACACS+

  C. Zero Trust

  D. Separation of duties

  E. Multifactor authentication

  Correct Answer: B

  TACACS+ is used to authenticate users and authorize access to network resources. This protocol provides greater network security by encrypting the authentication credentials and reducing the risk of unauthorized access. According to the CompTIA Network+ Study Manual, "TACACS+ is an authentication protocol used to centralize authentication and authorization for network devices. It is a more secure alternative to Telnet for handling logins and for granting privileges to users."

• Question 1213:

  Which of the following routing protocols is used to exchange route information between public autonomous systems?

  A. OSPF

  B. BGP

  C. EGRIP

  D. RIP

  Correct Answer: B

  BGP (Border Gateway Protocol) is the correct answer as it is used to exchange route information between public autonomous systems.

• Question 1214:

  A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?

  A. OTDR

  B. Tone generator

  C. Fusion splicer

  D. Cable tester

  E. PoE injector

  Correct Answer: A

  An OTDR (Optical Time Domain Reflectometer) works by emitting a short pulse of light into the fiber and then measuring the backscattered light as a function of time. By analyzing the backscattered light, the OTDR can determine the location and characteristics of events, such as bends, breaks, or splices, along the fiber.

• Question 1215:

  An engineer is configuring redundant network links between switches. Which of the following should the engineer enable to prevent network stability issues?

  A. 802.1Q

  B. STP

  C. Flow control

  D. CSMA/CD

  Correct Answer: B

  STP (Spanning Tree Protocol) A switching protocol that prevents network loops by dynamically disabling links as needed.

• Question 1216:

  Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:

  

  Which of the following should a wireless technician do NEXT to troubleshoot this issue?

  A. Reconfigure the channels to reduce overlap

  B. Replace the omni antennas with directional antennas

  C. Update the SSIDs on all the APs

  D. Decrease power in AP 3 and AP 4

  Correct Answer: A

  Received Signal Strength Indication (RSSI) is a measurement of the strength of a received radio signal. It is measured as a negative number on a logarithmic scale, which means that the closer to 0 the RSSI is, the better the signal. Clearly, AP 1 and AP 2 has channel/frequency overlap that causes the RF signals to interfere with each other.

• Question 1217:

  A network engineer configured new firewalls with the correct configuration to be deployed to each remote branch. Unneeded services were disabled, and all firewall rules were applied successfully. Which of the following should the network engineer perform NEXT to ensure all the firewalls are hardened successfully?

  A. Ensure an implicit permit rule is enabled

  B. Configure the log settings on the firewalls to the central syslog server

  C. Update the firewalls with current firmware and software

  D. Use the same complex passwords on all firewalls

  Correct Answer: B

  Configuring the log settings to send firewall logs to a central syslog server is a crucial step in hardening and monitoring the security of the firewalls. This allows for centralized logging and analysis of firewall events, which is important for detecting and responding to security incidents, as well as for auditing and compliance purposes

• Question 1218:

  At which of the following OSI model layers would a technician find an IP header?

  A. Layer 1

  B. Layer 2

  C. Layer 3

  D. Layer 4

  Correct Answer: C

  The seven layers of the OSI model are:

  Physical layer: responsible for transmitting raw data bits over a physical medium such as a cable.

  Data Link layer: provides error-free transmission of data frames over the physical layer.

  Network layer: responsible for routing and addressing of data packets.

  Transport layer: provides reliable end-to-end communication between applications.

  Session layer: establishes, manages, and terminates communication sessions between applications.

  Presentation layer: formats and encrypts data for network transmission.

  Application layer: provides the interface between the application and the network for communication.

• Question 1219:

  SIMULATION

  Users are unable to access files on their department share located on file server 2. The network administrator has been tasked with validating routing between networks hosting workstation A and file server 2.

  INSTRUCTIONS

  Click on each router to review output, identify any issues, and configure the appropriate solution.

  If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

  

  

  

  A. See the answer and solution below.

  B. PlaceHolder

  C. PlaceHolder

  D. PlaceHolder

  Correct Answer: A