New CompTIA N10-009 Test Answers | Reliable N10-009 Guide Files

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CompTIA N10-009 Exam Syllabus Topics:

Topic	Details
Topic 1	Cloud concepts and connectivity options, and Common networking ports.
Topic 2	Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Topic 3	Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.\| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.
Topic 4	Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Topic 5	OSI reference model concepts, Comparison of networking appliances, applications, and functions
Topic 6	Networking Fundamentals: For network administrators and IT support professionals, this domain covers

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CompTIA Network+ Certification Exam Sample Questions (Q13-Q18):

NEW QUESTION # 13
A network administrator wants users to be able to authenticate to the corporate network using a port-based authentication framework when accessing both wired and wireless devices. Which of the following is the best security feature to accomplish this task?

A. Port security
B. MAC filtering
C. 802.1X
D. Access control list

Answer: C

Explanation:
802.1X is a port-based network access control (PNAC) protocol that provides an authentication mechanism to devices wishing to connect to a LAN or WLAN. It is widely used for secure network access, ensuring that only authenticated devices can access the network, whether they are connecting via wired or wireless means.
802.1X works in conjunction with an authentication server, such as RADIUS, to validate the credentials of devices trying to connect.References: CompTIA Network+ study materials.

NEW QUESTION # 14
Which of the following connectors provides console access to a switch?

A. RJ45
B. BNC
C. ST
D. SFP

Answer: A

Explanation:
Console Access:
Purpose: Console access to a switch allows administrators to configure and manage the device directly. This is typically done using a terminal emulator program on a computer.
RJ45 Connector:
Common Use: The RJ45 connector is widely used for Ethernet cables and also for console connections to network devices like switches and routers.
Console Cables: Console cables often have an RJ45 connector on one end (for the switch) and a DB9 serial connector on the other end (for the computer).
Comparison with Other Connectors:
ST (Straight Tip): A fiber optic connector used for networking, not for console access.
BNC (Bayonet Neill-Concelman): A connector used for coaxial cable, typically in older network setups and not for console access.
SFP (Small Form-factor Pluggable): A modular transceiver used for network interfaces, not for console access.
Practical Application:
Connection Process: Connect the RJ45 end of the console cable to the console port of the switch. Connect the DB9 end (or USB via adapter) to the computer. Use a terminal emulator (e.g., PuTTY, Tera Term) to access the switch's command-line interface (CLI).
Reference:
CompTIA Network+ study materials on network devices and connectors.

NEW QUESTION # 15
Which of the following most likely requires the use of subinterfaces?

A. A firewall performing deep packet inspection
B. A switch using Spanning Tree Protocol
C. A router with only one available LAN port
D. A hub utilizing jumbo frames

Answer: C

Explanation:
* Introduction to Subinterfaces:
* Subinterfaces are logical interfaces created on a single physical interface. They are used to enable a router to support multiple networks on a single physical interface.
* Use Case for Subinterfaces:
* Subinterfaces are commonly used in scenarios where VLANs are implemented. A router with a single physical LAN port can be configured with multiple subinterfaces, each associated with a different VLAN.
* This setup allows the router to route traffic between different VLANs.
* Example Configuration:
* Consider a router with a single physical interfaceGigabitEthernet0/0and two VLANs, 10 and 20.
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.10.1 255.255.255.0
!
interface GigabitEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.20.1 255.255.255.0
* Theencapsulation dot1Qcommand specifies the VLAN ID.
* Explanation of the Options:
* A. A router with only one available LAN port:This is correct. Subinterfaces allow a single physical interface to manage multiple networks, making it essential for routers with limited physical interfaces.
* B. A firewall performing deep packet inspection:Firewalls can use subinterfaces, but it is not a requirement for deep packet inspection.
* C. A hub utilizing jumbo frames:Hubs do not use subinterfaces as they operate at Layer 1 and do not manage IP addressing.
* D. A switch using Spanning Tree Protocol:STP is a protocol for preventing loops in a network and does not require subinterfaces.
* Conclusion:
* Subinterfaces provide a practical solution for routing between multiple VLANs on a router with limited physical interfaces. They allow network administrators to optimize the use of available hardware resources efficiently.
References:
* CompTIA Network+ guide detailing VLAN configurations and the use of subinterfaces (see pageRef
9†Basic Configuration Commands).

NEW QUESTION # 16
Which of the following is used to describe the average duration of an outage for a specific service?

A. RTO
B. MTBF
C. RPO
D. MTTR

Answer: D

Explanation:
Explanation: MTTR (Mean Time to Repair) is the average time it takes to repair a system or service after a failure. It helps in measuring the downtime and planning recovery processes.

NEW QUESTION # 17
A newtwork administrator needs to create an SVI on a Layer 3-capable device to separate voice and data traffic. Which of the following best explains this use case?

A. A physical interface used for management access
B. A physical interface used for trunking logical ports
C. A logical interface used when the number of physical ports is insufficent.
D. A logical interface used for the routing of VLANs

Answer: D

NEW QUESTION # 18
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