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CompTIA N10-009 Exam Questions: Attain Your Professional Career Goals [2026]

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CompTIA N10-009 Exam Questions: Attain Your Professional Career Goals [2026]

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CompTIA N10-009 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Topic 2
  • Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 3
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions

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CompTIA Network+ Certification Exam Sample Questions (Q236-Q241):NEW QUESTION # 236
Which of the following is used to estimate the average life span of a device?
  • A. RPO
  • B. MTBF
  • C. RTO
  • D. MTTR
Answer: B
Explanation:
Understanding MTBF:
Mean Time Between Failures (MTBF): A reliability metric that estimates the average time between successive failures of a device or system.
Calculation and Importance:
Calculation: MTBF is calculated as the total operational time divided by the number of failures during that period.
Usage: Used by manufacturers and engineers to predict the lifespan and reliability of a device, helping in maintenance planning and lifecycle management.
Comparison with Other Metrics:
RTO (Recovery Time Objective): The maximum acceptable time to restore a system after a failure.
RPO (Recovery Point Objective): The maximum acceptable amount of data loss measured in time.
MTTR (Mean Time to Repair): The average time required to repair a device or system and return it to operational status.
Application:
MTBF is crucial for planning maintenance schedules, spare parts inventory, and improving the overall reliability of systems.
Reference:
CompTIA Network+ study materials on reliability and maintenance metrics.

NEW QUESTION # 237
A network administrator is planning to host a company application in the cloud, making the application available for all internal and third-party users. Which of the following concepts describes this arrangement?
  • A. SaaS
  • B. VPC
  • C. NFV
  • D. Multitenancy
Answer: D
Explanation:
Multitenancy is a cloud computing architecture where a single instance of software serves multiple customers or tenants. Each tenant's data is isolated and remains invisible to other tenants. Hosting a company application in the cloud to be available for both internal and third- party users fits this concept, as it allows shared resources and infrastructure while maintaining data separation and security.

NEW QUESTION # 238
SIMULATION
A network technician replaced a switch and needs to reconfigure it to allow the connected devices to connect to the correct networks.
INSTRUCTIONS
Click on the appropriate port(s) on Switch 1 and Switch 3 to verify or reconfigure the correct settings:
- Ensure each device accesses only its correctly associated network
- Disable all unused switch ports
- Require fault-tolerant connections between the switches
- Only make necessary changes to complete the above requirements
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.















Answer:
Explanation:
To reconfigure the switch, the technician needs to click on the appropriate port(s) on Switch 1 and Switch 3. The technician should ensure that each device only has access to its correctly associated network. The technician should also disable all unused switch ports. Finally, the technician should require fault-tolerant connections between the switches. If at any time the technician wants to bring back the initial state of the simulation, they can click on the Reset All button.
Tagged = Switch to Switch connections.
Untagged = Devices(WLAN, Servers, Printers, VoIP)
Port Enabled = if there is a device connected
Port Disabled = if there is nothing connection on the port.
Switch 1-Ports 1 & 2 >Port Enabled >LACP Enabled >VLAN60/90/120/150/220 Tagged Switch 1-Ports 3 & 4 >Port Enabled >LACP Disabled >VLAN90 Untagged Switch 1-Ports 5 & 6 >Port Enabled >LACP Enabled >VLAN60/120/150 Tagged Switch 1-Ports 7 & 8 >Port Enabled >LACP Enabled >VLAN60/90/120/220 Tagged Switch 3-Ports 1 & 2 >Port Enabled >LACP Enabled >VLAN60/90/120/220 Tagged Switch 3-Ports 3 & 5 >Port Disabled Switch 3-Port 4 >Port Enabled >LACP Disabled >VLAN120/220 Untagged Switch 3-Port 6 >Port Enabled >LACP Disabled >VLAN120 Untagged Switch 3-Port 7 >Port Enabled >LACP Disabled >VLAN60 Untagged Switch 3-Port 8 >Port Enabled >LACP Disabled >VLAN90 Untagged

NEW QUESTION # 239
A company implements a video streaming solution that will play on all computers that have joined a particular group, but router ACLs are blocking the traffic. Which of the following is the most appropriate IP address that will be allowed in the ACL?
  • A. 172.17.1.1
  • B. 240.0.0.1
  • C. 224.0.0.1
  • D. 127.0.0.1
Answer: C
Explanation:
224.0.0.1 is a multicast address that allows packets to be sent to all hosts within a multicast group. Since video streaming often uses multicast to efficiently distribute data to multiple clients without unnecessary duplication, this is the correct answer.
*Why not the other options?
*127.0.0.1 (A) - This is the loopback address used for internal device testing, not for multicast traffic.
*172.17.1.1 (B) - This is a private unicast address, meaning it can only send packets to one specific host.
*240.0.0.1 (D) - This falls within the reserved experimental IP address range and is not used for multicast.
Reference:
CompTIA Network+ (N10-009) Official Guide - Chapter 7: IP Addressing and Subnetting

NEW QUESTION # 240
A company is hosting a secure that requires all connections to the server to be encrypted. A junior administrator needs to harded the web server. The following ports on the web server. The following ports on the web server are open:

Which of the following ports should be disabled?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Answer: C
Explanation:
For a web server that requires all connections to be encrypted, port 80 (HTTP) should be disabled. Port 80 is used for unencrypted web traffic, whereas port 443 is used for HTTPS, which provides encrypted communication.
* Port 80 (HTTP): This port is used for unsecured web traffic. Disabling this port ensures that all web traffic must use HTTPS, which encrypts the data in transit.
* Port 443 (HTTPS): This port is used for secure web traffic via SSL/TLS encryption. Keeping this port open ensures that secure connections can be made to the web server.
* Other Ports:
* Port 22: Used for SSH, providing secure remote access and file transfers.
* Port 587: Used for secure email submission (SMTP) with encryption.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Discusses the roles and security implications of various ports and protocols.
* Cisco Networking Academy: Provides training on secure web server configuration and port management.
* Network+ Certification All-in-One Exam Guide: Covers port security and best practices for securing web servers.

NEW QUESTION # 241
......
As old saying goes, knowledge is wealth. So our N10-009 exam questions will truly teach you a lot of useful knowledge, which can compensate for your shortcomings. Actions speak louder than words. You are supposed to learn to make a rational plan of life. Our N10-009 Real Exam will accompany you to grow stronger. And the more you know, the more easily you can cope with the difficulties in your work. And the most important is that you can get the N10-009 certification.
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