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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Available Languages: | English, Japanese, Spanish, German, Portuguese |
| Exam Format: | Performance-based, Multiple-choice |
| Passing Score: | 720 (on a scale of 100-900) |
| Certificate Validity Period: | 3 years |
| Related Certifications: | CompTIA Network+ |
| Real Exam Qty: | Maximum 90 |
| Exam Duration: | 90 minutes |
| Exam Price: | $369 USD |
| 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 # 382
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?
Answer: A
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 # 383
A company upgrades its network and PCs to gigabit speeds. After the upgrade, users are not getting the expected performance. Technicians discover that the speeds of the endpoint NICs are inconsistent. Which of the following should be checked first to troubleshoot the issue?
Answer: B
Explanation:
Speed Mismatches: If NICs are set to different speeds (e.g., 100 Mbps on one side and 1 Gbps on the other), performance will degrade. Ensuring consistent speed settings between devices is crucial for optimal performance.
Load balancer settings (B): Applies to server load distribution, not endpoint speed.
Flow control settings (C): Can affect performance but is secondary to speed mismatches.
Infrastructure cabling grade (D): Relevant if the cables are unsuitable for gigabit speeds, but speed settings should be checked first.
Reference: CompTIA Network+ Official Study Guide, Domain 2.5 (Troubleshooting Network Issues).
NEW QUESTION # 384
Which of the following devices can operate in multiple layers of the OSI model?
Answer: A
Explanation:
* Understanding Switches:
* Layer 2 (Data Link Layer): Traditional switches operate primarily at Layer 2, where they use MAC addresses to forward frames within a local network.
* Layer 3 (Network Layer): Layer 3 switches, also known as multilayer switches, can perform routing functions using IP addresses to forward packets between different networks.
* Capabilities of Multilayer Switches:
* VLANs and Inter-VLAN Routing: Multilayer switches can handle VLAN (Virtual Local Area Network) configurations and perform inter-VLAN routing, enabling communication between different VLANs.
* Routing Protocols: They can run routing protocols like OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol) to manage traffic between networks.
* Comparison with Other Devices:
* Hub: Operates only at Layer 1 (Physical Layer) and simply repeats incoming signals to all ports.
* Transceiver: Also operates at Layer 1, converting electrical signals to optical signals and vice versa.
* Modem: Primarily operates at Layer 1 and Layer 2, modulating and demodulating signals for transmission over different types of media.
* Practical Application:
* Multilayer switches are commonly used in enterprise networks to optimize performance and manage complex routing and switching requirements within a single device.
References:
* CompTIA Network+ study materials on network devices and the OSI model.
NEW QUESTION # 385
Which of the following is created to illustrate the effectiveness of wireless networking coverage in a building?
Answer: B
Explanation:
* Definition of Heat Maps:
* A heat map is a graphical representation of data where individual values are represented by colors. In the context of wireless networking, a heat map shows the wireless signal strength in different areas of a building.
* Purpose of a Heat Map:
* Heat maps are used to illustrate the effectiveness of wireless networking coverage, identify dead zones, and optimize the placement of access points (APs) to ensure adequate coverage and performance.
* Comparison with Other Options:
* Logical Diagram: Represents the logical connections and relationships within the network.
* Layer 3 Network Diagram: Focuses on the routing and IP addressing within the network.
* Service-Level Agreement (SLA): A contract that specifies the expected service levels between a service provider and a customer.
* Creation and Use:
* Heat maps are created using specialized software or tools that measure wireless signal strength throughout the building. The data collected is then used to generate a visual map, guiding network administrators in optimizing wireless coverage.
NEW QUESTION # 386
Which of the following facilities is the best example of a warm site in the event of information system disruption?
Answer: C
Explanation:
A warm site typically has a full infrastructure ready, but it lacks the most up-to-date data or is not immediately operational. It requires some configuration or data restoration to become fully functional.
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NEW QUESTION # 387
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