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>> Exam N10-009 Questions Pdf <<
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NEW QUESTION # 171
Which of the following is used tostage copies of a websitecloser to geographically dispersed users?
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
AContent Delivery Network (CDN)cacheswebsite contentacross multiplegeographically distributed serverstoreduce latency and improve load timesfor users worldwide.
Breakdown of Options:
* A. VPN- Encrypts network connections,does not distribute website content.
* B. CDN-#Correct answer.Anetwork of caching serversthat delivers web content faster.
* C. SAN-Storage Area Network,not related to web content distribution.
* D. SDN-Software-defined networking, which controls network flows butdoes not stage website content.
NEW QUESTION # 172
Which of the following is the best example of implementing role-based access control?
Answer: B
Explanation:
Role-based access control, or RBAC, assigns permissions according to a user's job role or responsibility within the organization. In this question, granting data center access only to server and network administrators is the best example because the permission is tied directly to the users' operational roles. Server administrators and network administrators typically require physical or logical access to data center infrastructure to perform maintenance, troubleshooting, configuration, and support tasks. This aligns with the CompTIA Network+ N10-009 security objectives related to authentication, authorization, and access control.
Option B is too broad because giving the entire IT department access to an application development server may violate least privilege. Not every IT employee needs that access. Option C describes multifactor authentication, which strengthens authentication but does not define authorization by role. Option D is closer to discretionary access control because the HR director is deciding who can access files. RBAC is centrally defined by roles, not by an individual data owner's discretion. Therefore, option A is the strongest RBAC example.
NEW QUESTION # 173
Which of the following technologies is the best choice to listen for requests and distribute user traffic across web servers?
Answer: D
Explanation:
A load balancer is designed to distribute user requests across multiple servers to ensure high availability and performance.
Breakdown of Options:
A . Router - Directs traffic between networks, not between web servers.
B . Switch - Works at Layer 2, does not distribute web traffic.
C . Firewall - Secures network traffic, but does not distribute load.
D . Load balancer - โ
Correct answer. Optimizes web traffic distribution across multiple servers.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.5: Explain load balancing and redundancy concepts.
NEW QUESTION # 174
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: C
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 # 175
A network administrator notices interference with industrial equipment in the 2.4GHz range. Which of the following technologies would most likely mitigate this issue? (Select two).
Answer: D
Explanation:
* Understanding 2.4GHz Interference:
* The 2.4GHz frequency range is commonly used by many devices, including Wi-Fi, Bluetooth, and various industrial equipment. This can lead to interference and degraded performance.
* Mitigation Strategies:
* 5GHz Frequency:
* The 5GHz frequency band offers more channels and less interference compared to the 2.4 GHz band. Devices operating on 5GHz are less likely to encounter interference from other devices, including industrial equipment.
* Non-overlapping Channels:
* In the 2.4GHz band, using non-overlapping channels (such as channels 1, 6, and 11) can help reduce interference. Non-overlapping channels do not interfere with each other, providing clearer communication paths for Wi-Fi signals.
* Why Other Options are Less Effective:
* Mesh Network: While useful for extending network coverage, a mesh network does not inherently address interference issues.
* Omnidirectional Antenna: This type of antenna broadcasts signals in all directions but does not mitigate interference.
* Captive Portal: A web page that users must view and interact with before accessing a network, unrelated to frequency interference.
* Ad Hoc Network: A decentralized wireless network that does not address interference issues directly.
* Implementation:
* Switch Wi-Fi devices to the 5GHz band if supported by the network infrastructure and client devices.
* Configure Wi-Fi access points to use non-overlapping channels within the 2.4GHz band to minimize interference.
NEW QUESTION # 176
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