CompTIA N10-009 Exam Dumps

The best solution here is band steering. Band steering allows modern wireless access points to automatically direct dual-band capable clients toward the 5 GHz band instead of the crowded 2.4 GHz band. The 5 GHz band has more available non-overlapping channels and can provide faster speeds with less interference, especially in dense environments. Devices that only support 2.4 GHz will remain on that band, while compatible devices enjoy the improved performance of 5 GHz.

A . 802.1X is a port-based network access control method for authentication. While important for security, it does not affect wireless channel utilization or client throughput.

B . MIMO (Multiple Input, Multiple Output) is a technology that improves throughput by using multiple antennas to send/receive simultaneously, but it does not actively steer clients between frequency bands.

C . ESSID (Extended Service Set Identifier) is just the network name for a set of APs in the same WLAN; it has no role in optimizing performance by band.

By implementing band steering, administrators reduce channel overlap on the 2.4 GHz band, improve spectral efficiency, and provide higher performance to capable devices, directly meeting the requirements described in the scenario.

Elasticity is the ability of a system (often in cloud environments) to automatically scale resources up or down in real time based on demand.

A . Scalability means the ability to grow over time but not necessarily dynamically.

B . SaaS is a service model, not a resource-allocation concept.

C . Hybrid cloud is a deployment model, not a performance behavior.

Reference (CompTIA Network+ N10-009):

Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):

In a spine--leaf architecture, endpoints (including servers, firewalls, and WAN/edge routers) connect to leaf switches. Leaf switches then uplink to spine switches; spine switches do not have endpoints connected directly to them. Therefore, a WAN router (an external/edge device) should connect to the leaf layer---often specifically to a ''border leaf'' that handles external connectivity.

Why not B. Core or D. Spine? In spine--leaf, ''core'' isn't a formal layer, and spines are designed only to interconnect leafs, not to terminate endpoints.

Why not A. Access? ''Access'' is a term from the traditional three-tier model (access--distribution--core). In modern spine--leaf language, the analogous layer for endpoint attachment is the leaf.

Reference (CompTIA Network+ N10-009):

In a data center that uses hot aisle/cold aisle ventilation, equipment is typically installed so that cool air enters from the cold aisle (front) and hot air is exhausted to the hot aisle (rear). This configuration maximizes cooling efficiency.

Band steering is a feature in wireless networks that encourages dual-band capable devices to connect to the 5GHz band instead of the 2.4GHz band.

Why Band Steering?

The 5GHz band supports higher speeds and less interference compared to 2.4GHz.

If a device supports both bands, the access point (AP) can 'steer' it to connect to 5GHz instead of 2.4GHz.

This helps ensure users always connect to the fastest available network.

Incorrect Options:

B . Disabling the 5GHz SSID: Would force devices onto 2.4GHz, which is slower and more congested.

C . Adding a Captive Portal: Used for guest authentication, not for speed optimization.

D . Configuring MAC Filtering: Used for security, not for optimizing network speed.

CompTIA Network+ N10-009 Official Study Guide -- Chapter on Wireless Technologies and Optimization