CompTIA CompTIA Certifications N10-009 Questions & Answers

• Question 101:

  Which of the following routing protocols uses an autonomous system number?

  A. IS-IS

  B. EIGRP

  C. OSPF

  D. BGP

  Correct Answer: D

  An autonomous system (AS) is a collection of IP networks and routers under the control of a single entity that presents a common routing policy to the internet. BGP (Border Gateway Protocol) is the routing protocol commonly used to exchange routing and reachability information between autonomous systems on the internet. BGP uses an autonomous system number (ASN) to uniquely identify each autonomous system.

• Question 102:

  Which of the following is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities?

  A. Site-to-site VPN

  B. SSH tunnel

  C. API gateway

  D. Dedicated line

  Correct Answer: A

  A site-to-site VPN (Virtual Private Network) is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities. It allows secure communication over the internet by encrypting the data transmitted between the two locations. Site-to-site VPNs are a practical and economical solution for connecting geographically dispersed sites over the public internet while maintaining a high level of security.

• Question 103:

  A network technician is troubleshooting internet connectivity issues with users in a subnet. From a host, the technician runs tcpdump and then attempts to navigate to a website using a web browser. The technician receives the following output:

  

  Afterward, the browser displays an error. Which of the following explains this issue?

  A. A routing loop is within the network.

  B. The host is configured with incorrect DNS settings.

  C. A broadcast storm is occurring on the subnet.

  D. The host is missing a route to the website.

  Correct Answer: D

• Question 104:

  A customer has an attached USB printer that needs to be shared with other users. The desktop team set up printer sharing. Now, the network technician needs to obtain the necessary information about the PC and share it with other users so they can connect to the printer. Which of the following commands should the technician use to get the required information? (Choose two.)

  A. arp

  B. route

  C. netstat

  D. tcpdump

  E. hostname

  F. ipconfig

  Correct Answer: EF

• Question 105:

  A technician received a report that some users in a large, 30-floor building are having intermittent connectivity issues. Users on each floor have stable connectivity, but do not have connectivity to other floors. Which of the following devices is MOST likely causing the issue?

  A. User devices

  B. Edge devices

  C. Access switch

  D. Core switch

  Correct Answer: D

• Question 106:

  A network administrator is reviewing north-south traffic to determine whether a security threat exists. Which of the following explains the type of traffic the administrator is reviewing?

  A. Data flowing between application servers

  B. Data flowing between the perimeter network and application servers

  C. Data flowing in and out of the data center

  D. Data flowing between local on-site support and backup servers

  Correct Answer: C

• Question 107:

  Which of the following would a network administrator configure to set NTP settings for a specific subnet within DHCP?

  A. Reservation

  B. Lease time

  C. Scope options

  D. Exclusion range

  Correct Answer: C

• Question 108:

  The results of a recently completed site survey indicate a significant, undesired RSSI in the parking lot and other exterior areas near the main building. The wireless technician would like to mitigate access to the wireless network in exterior access areas. The current access point settings are listed in the following table:

  

  Which of the following is the BEST step for the technician to take to resolve the issue?

  A. Reconfigure AP2 and AP3 for non-overlapping channels.

  B. Implement directional antennas on AP1 and AP2.

  C. Raise the power settings on AP2 and AP3.

  D. Change the SSID on AP1 and AP2.

  Correct Answer: B

• Question 109:

  Which of the following facilities is the best example of a warm site in the event of information system disruption?

  A. A combination of public and private cloud services to restore data

  B. A partial infrastructure, software, and data on site

  C. A full electrical infrastructure in place, but no customer devices on site

  D. A full infrastructure in place, but no current data on site

  Correct Answer: D

  A warm site typically has a full infrastructure ready, but it lacks the most up-to-date data or is not immediately operational. It requires some configuration or data restoration to become fully functional.

• Question 110:

  A network technician is troubleshooting a web application's poor performance. The office has two internet links that share the traffic load.

  Which of the following tools should the technician use to determine which link is being used for the web application?

  A. netstat

  B. nslookup

  C. ping

  D. tracert

  Correct Answer: D

  Understanding Tracert:

  uk.co.certification.simulator.questionpool.PList@2595382a Determining Traffic Path:

  Comparison with Other Tools:

  Implementation:

  References:

  CompTIA Network+ study materials on network troubleshooting and diagnostic tools.