RELIABLE COMPTIA N10-009 TEST ONLINE & N10-009 RELIABLE REAL TEST

Reliable CompTIA N10-009 Test Online & N10-009 Reliable Real Test

Reliable CompTIA N10-009 Test Online & N10-009 Reliable Real Test

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CompTIA Network+ Certification Exam Sample Questions (Q249-Q254):

NEW QUESTION # 249
Which of the following is created to illustrate the effectiveness of wireless networking coverage in a building?

  • A. Heat map
  • B. Logical diagram
  • C. Service-level agreement
  • D. Layer 3 network diagram

Answer: A

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.


NEW QUESTION # 250
Which of the following requires network devices to be managed using a different set of IP addresses?

  • A. Jump box
  • B. Split tunnel
  • C. Console
  • D. Out of band

Answer: D

Explanation:
Out-of-band (OOB) management refers to using a dedicated management network that is physically separate from the regular data network. This management network uses a different set of IP addresses to ensure that management traffic is isolated from user data traffic, providing a secure way to manage network devices even if the main network is down or compromised.References:CompTIA Network+ study materials.


NEW QUESTION # 251
A customer is adding fiber connectivity between adjacent buildings. A technician terminates the multimode cable to the fiber patch panel. After the technician connects the fiber patch cable, the indicator light does not turn on. Which of the following should a technician try first to troubleshoot this issue?

  • A. Reterminate the fibers.
  • B. Verify the fiber size.
  • C. Examine the cable runs for visual faults.
  • D. Reverse the fibers.

Answer: D

Explanation:
When working with fiber optic cables, one common issue is that the transmit (TX) and receive (RX) fibers might be reversed. The first step in troubleshooting should be to reverse the fibers at one end to ensure they are correctly aligned (TX to RX and RX to TX). This is a simple and quick step to rule out a common issue before moving on to more complex troubleshooting.References:CompTIA Network+ study materials.


NEW QUESTION # 252
A network engineer is completing a new VoIP installation, but the phones cannot find the TFTP server to download the configuration files. Which of the following DHCP features would help the phone reach the TFTP server?

  • A. Options
  • B. Scope
  • C. Exclusions
  • D. Lease time

Answer: A

Explanation:
DHCP Options: DHCP options allow additional configuration parameters, such as the address of a TFTP server, to be provided to clients during the DHCP lease process. This is essential for VoIP phones to locate the server for configuration files.
Exclusions (A): Prevents certain IP addresses from being assigned by DHCP but does not direct devices to servers.
Lease time (B): Determines how long an IP address is assigned but does not impact TFTP settings.
Scope (D): Defines a range of IP addresses but does not include additional server information.


NEW QUESTION # 253
A network administrator wants to implement security zones in the corporate network to control access to only individuals inside of the corporation. Which of the following security zones is the best solution?

  • A. Trusted
  • B. VPN
  • C. Public
  • D. Extranet

Answer: A

Explanation:
* Introduction to Security Zones:
* Security zones are logical segments within a network designed to enforce security policies and control access. They help in segregating and securing different parts of the network.
* Types of Security Zones:
* Trusted Zone: This is the most secure zone, typically used for internal corporate networks where only trusted users have access.
* Extranet: This zone allows controlled access to external partners, vendors, or customers.
* VPN (Virtual Private Network): While VPNs are used to create secure connections over the internet, they are not a security zone themselves.
* Public Zone: This zone is the least secure and is typically used for public-facing services accessible by anyone.
* Trusted Zone Implementation:
* The trusted zone is configured to include internal corporate users and resources. Access controls, firewalls, and other security measures ensure that only authorized personnel can access this zone.
* Internal network segments, such as the finance department, HR, and other critical functions, are usually placed in the trusted zone.
* Example Configuration:
* Firewall Rules: Set up rules to allow traffic only from internal IP addresses.
* Access Control Lists (ACLs): Implement ACLs on routers and switches to restrict access based on IP addresses and other criteria.
* Segmentation: Use VLANs and subnetting to segment and isolate the trusted zone from other zones.
* Explanation of the Options:
* A. Extranet: Suitable for external partners, not for internal-only access.
* B. Trusted: The correct answer, as it provides controlled access to internal corporate users.
* C. VPN: A method for secure remote access, not a security zone itself.
* D. Public: Suitable for public access, not for internal corporate users.
* Conclusion:
* Implementing a trusted zone is the best solution for controlling access within a corporate network.
It ensures that only trusted internal users can access sensitive resources, enhancing network security.
References:
* CompTIA Network+ guide detailing security zones and their implementation in a corporate network (see page Ref 9†Basic Configuration Commands).


NEW QUESTION # 254
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