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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Real Exam Qty: | Maximum 90 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Exam Format: | Performance-based, Multiple-choice |
| Exam Price: | $369 USD |
| Available Languages: | Portuguese, English, Japanese, Spanish, German |
| Passing Score: | 720 (on a scale of 100-900) |
| Related Certifications: | CompTIA Network+ |
| Sample Questions: | CompTIA N10-009 Sample Questions |
| Exam Way: | Online or in-person testing at Pearson VUE test centers. |
| Pre Condition: | CompTIA recommends A+ certification and 9-12 months of networking experience. |
| Official Syllabus URL: | https://www.comptia.org/en/certifications/network/ |
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NEW QUESTION # 316
Which of the following connectors provides console access to a switch?
Answer: B
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).
References:
* CompTIA Network+ study materials on network devices and connectors.
NEW QUESTION # 317
A network technician wants to reduce switch port use. The technician connects users' laptops through VoIP phones. However, this change causes users to have issues printing and accessing different network resources.
Which of the following is the most likely cause of this issue?
Answer: A
Explanation:
The most likely cause is an incorrect VLAN assignment. VoIP phones commonly support a pass-through Ethernet port that allows a user's computer to connect through the phone to the switch. In this design, the phone is usually placed in a voice VLAN, while the connected computer should remain in the appropriate data VLAN. If the switch port, phone, or VLAN tagging configuration is incorrect, the laptop may be placed into the wrong VLAN. This can prevent access to printers, file shares, application servers, or other network resources.
The CompTIA Network+ N10-009 objectives include VLANs, switching, VoIP, QoS, and network segmentation. Voice and data VLAN separation is common because voice traffic often requires prioritization and different security or DHCP options. Proper configuration may involve access VLANs, voice VLANs,
802.1Q tagging, LLDP-MED, and DHCP scopes.
An incorrect subnet mask could cause reachability issues, but the problem began after connecting laptops through VoIP phones, making VLAN assignment more likely. Address pool exhaustion would prevent clients from receiving addresses. Duplicate IP addresses would usually produce conflict symptoms. The best answer is VLAN assignment.
NEW QUESTION # 318
Which of the following is the part of a disaster recovery (DR) plan that identifies the critical systems that should be recovered first after an incident?
Answer: C
Explanation:
RTO stands forRecovery Time Objective, which defines the maximum acceptable amount of time that a system, application, or function can be down after a failure or disaster. It helps prioritizewhich systems need to be recovered firstbased on their importance to business operations.
* SLA (Service Level Agreement)refers to an agreement between a service provider and a customer regarding expected performance and availability, but it does not dictate recovery order.
* MTBF (Mean Time Between Failures)is a measure of reliability and time between hardware or system failures.
* SIEM (Security Information and Event Management)is a centralized tool for logging and alerting but not relevant to DR recovery prioritization.
#Reference:
CompTIA Network+ N10-009 Official Objectives: 4.4 - Summarize business continuity and disaster recovery concepts.
NEW QUESTION # 319
A network technician installs a new 19.7ft (6m), Cat 6, UTP cable for the connection between a server and a switch. Communication to the server is degraded, and the NIC statistics show dropped packets and CRC errors. Which of the following cables would the technician most likely use instead to reduce the errors?
Answer: D
Explanation:
The errors described - dropped packets and CRC (Cyclic Redundancy Check) errors - often indicate electromagnetic interference (EMI) on unshielded twisted pair (UTP) cabling. The correct replacement is STP (Shielded Twisted Pair), which has shielding that protects signals from external interference, ensuring better reliability in noisy environments such as data centers or near heavy electrical equipment.
A . Coaxial is not used for modern Ethernet server-switch links.
B . Shorter UTP cable does not solve EMI issues.
C . Plenum cable refers to cable jacket type for fire safety, not electrical shielding.
STP cabling reduces interference and ensures reliable gigabit+ Ethernet connections between servers and switches.
Reference:
Domain: Network Troubleshooting - Cabling issues, UTP vs. STP, EMI.
NEW QUESTION # 320
A network engineer needs to correlate findings and receive alerts if there are brute force attacks, DDoS attacks, or port scanning happening within their network. Which of the following network monitoring technologies should the engineer implement?
Answer: C
Explanation:
A Security Information and Event Management system aggregates logs and events from multiple sources, correlates them, and generates alerts for suspicious activities such as brute force attempts, DDoS attacks, and port scanning.
NEW QUESTION # 321
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