2026 CompTIA N10-009–Trustable Valid Test Answers

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CompTIA N10-009 Exam Syllabus Topics:

SectionObjectives
Network Security- Network hardening techniques
- Access control and authentication
- Security concepts and threats
Network Operations- Monitoring and optimization
- Business continuity and disaster recovery
- Network documentation and diagrams
Networking Concepts- Ports, protocols, and services
- IPv4 and IPv6 addressing
- OSI model and TCP/IP model
- Network topologies and types (LAN, WAN, WLAN)
Network Implementation- Network storage and virtualization
- Switching technologies
- Wireless networking
- Routing technologies
Network Troubleshooting- Common network issues
- Troubleshooting methodology
- Tools and diagnostic techniques

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CompTIA Network+ Certification Exam Sample Questions (Q171-Q176):

NEW QUESTION # 171
Which of the following is the most closely associated with segmenting compute resources within a single cloud account?

Answer: B


NEW QUESTION # 172
A technician needs to identify a computer on the network that is reportedly downloading unauthorized content. Which of the following should the technician use?

Answer: C

Explanation:
Packet Capture: This method captures and inspects network traffic to identify unauthorized downloads or malicious behavior. It provides detailed insight into the data being transmitted, making it the best tool for this scenario.


NEW QUESTION # 173
Which of the following connectors allows a singular QSFP transceiver to have several physical connections?

Answer: D

Explanation:
The MPO (Multi-fiber Push On) connector is designed to handle multiple fiber strands in a single connector, and it is commonly used with high-density transceivers like QSFP (Quad Small Form-factor Pluggable).
QSFP can support up to four channels (hence "quad"), and MPO connectors can interface multiple fibers (e.g.,
8, 12, 24), making them ideal for 40Gbps or 100Gbps deployments.
RJ45 (A) is used for Ethernet over copper.
ST (B) and LC (C) are single-fiber connectors - they don't support the multi-fiber needs of QSFP setups.
# Therefore, MPO is the correct connector type for this use case.
Reference:CompTIA Network+ N10-009 Official Study Guide - Objective 3.1: "Compare and contrast different types of connectors and transceivers."


NEW QUESTION # 174
Which of the following is most likely to cause intermittent external connectivity failures when browsing websites, despite successful pings to public IP addresses like 8.8.8.8?

Answer: B

Explanation:
If the business shares or duplicates the ISP-assigned public IP address, routing instability and conflicts will occur. Pinging a public IP like 8.8.8.8 may work (since ICMP can bypass certain conflicts), but browsing websites (which requires stable sessions and return traffic) will fail intermittently.
* A. If the default gateway were incorrect, no external connectivity would work at all.
* B. VLAN mismatch is an internal issue, not affecting ISP routing.
* C. Subnet mask misconfiguration would prevent consistent routing but usually blocks ping too.
References (CompTIA Network+ N10-009):
* Domain: Network Troubleshooting - Internet connectivity issues, ISP IP conflicts.


NEW QUESTION # 175
An organization wants to ensure that incoming emails were sent from a trusted source. Which of the following DNS records is used to verify the source?

Answer: C

Explanation:
A TXT record can be used to store SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) information, which help verify that an email has been sent from a trusted source.


NEW QUESTION # 176
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