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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Exam Format: | Performance-based, Multiple-choice |
| Real Exam Qty: | Maximum 90 |
| Related Certifications: | CompTIA Network+ |
| Available Languages: | Portuguese, German, Spanish, English, Japanese |
| Passing Score: | 720 (on a scale of 100-900) |
| Exam Duration: | 90 minutes |
| Exam Price: | $369 USD |
| Certificate Validity Period: | 3 years |
| 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/ |
>> Reliable N10-009 Test Questions <<
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NEW QUESTION # 462
A network engineer discovers network traffic that is sending confidential information to an unauthorized and unknown destination. Which of the following best describes the cause of this network traffic?
Answer: C
Explanation:
Malware refers to any malicious software that can exfiltrate confidential data, including spyware, trojans, and rootkits. This fits the scenario where unauthorized data transfer is occurring.
Breakdown of Options:
A: Adware - Displays ads, does not typically steal data.
B: Ransomware - Encrypts files but does not exfiltrate data.
C: Darkware - Not a real cybersecurity term.
D: Malware - Correct answer. Malicious software is responsible for unauthorized data exfiltration.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 3.5: Given a scenario, implement cybersecurity measures.
NIST 800-83: Malware Incident Prevention & Handling
NEW QUESTION # 463
A network administrator needs to set up a multicast network for audio and video broadcasting. Which of the following networks would be the most appropriate for this application?
Answer: B
NEW QUESTION # 464
Which of the following attacks would most likely cause duplicate IP addresses in a network?
Answer: D
Explanation:
* Definition of a Rogue DHCP Server:
* A rogue DHCP server is an unauthorized DHCP server on a network, which can assign IP addresses to devices without proper control, leading to IP address conflicts.
* Impact of a Rogue DHCP Server:
* IP Address Conflicts: Multiple devices may receive the same IP address from different DHCP servers, causing network connectivity issues.
* Network Disruption: Devices may be assigned incorrect network configuration settings, disrupting network services and connectivity.
* Comparison with Other Attacks:
* DNS poisoning: Alters DNS records to redirect traffic to malicious sites, but does not cause IP address conflicts.
* Social engineering: Involves manipulating individuals to gain unauthorized access or information, not directly related to IP address conflicts.
* Denial-of-service (DoS): Floods a network or service with excessive traffic to disrupt operations, but does not cause duplicate IP addresses.
* Prevention and Detection:
* Implement network access control measures to prevent unauthorized devices from acting as DHCP servers.
* Use DHCP snooping on switches to allow DHCP responses only from authorized DHCP servers.
NEW QUESTION # 465
An organization is concerned about rogue devices connecting to the network and wants the network team to implement a solution. Which of the following types of filtering should the network team use to address this concern?
Answer: C
Explanation:
MAC filtering controls network access by permitting or denying devices based on their unique hardware addresses, effectively blocking unauthorized (rogue) devices from connecting.
NEW QUESTION # 466
A network administrator is trying to troubleshoot an issue with a newly installed switch that is not connecting to the network. The administrator logs on to the switch and observes collisions on the interface. Which of the following is most likely the issue?
Answer: D
Explanation:
The most likely issue is a duplex mismatch, which is a well-documented cause of collisions and poor network performance, as outlined in the CompTIA Network+ N10-009 troubleshooting objectives. A duplex mismatch occurs when one end of a network link is configured for full duplex while the other end is operating in half duplex. In half-duplex mode, devices must take turns transmitting and receiving data, which inherently allows for collisions. When paired with a full-duplex device-which expects simultaneous send and receive- collisions and retransmissions occur frequently.
The presence of collisions on a switch interface is a key diagnostic clue. Modern Ethernet switches operating correctly in full duplex should not experience collisions at all. When collisions are observed, it almost always points to a duplex configuration issue, often caused by manual speed/duplex settings on one device and auto- negotiation on the other.
A wrong speed setting may prevent link establishment entirely or cause errors, but it does not typically result in collisions. Jumbo frames can cause packet drops or fragmentation issues, not collisions. An incorrect VLAN configuration affects logical segmentation and connectivity but operates at Layer 2 and does not generate collisions.
CompTIA Network+ emphasizes duplex mismatch as a classic and frequently tested troubleshooting scenario.
Correcting it-usually by enabling auto-negotiation on both ends-restores normal, collision-free communication.
NEW QUESTION # 467
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