Autonomous access points operate independently without needing to communicate with a central wireless LAN controller. This is ideal for remote deployments.
From Andrew Ramdayal's guide:
"Autonomous access points are stand-alone devices that manage their own configurations and operations. They do not require a WLC and are ideal for small or remote office deployments."

MAC flooding overwhelms a switch's CAM (Content Addressable Memory) table by sending a flood of frames with spoofed MAC addresses. Once the CAM table overflows, the switch cannot learn legitimate MAC addresses and defaults to flooding all frames out all ports, effectively turning it into a hub. This allows an attacker to capture traffic not originally destined for their port.
A . ARP poisoning corrupts ARP tables to redirect traffic but does not overflow the CAM table.
B . Evil twin is a wireless rogue AP attack, unrelated to switch behavior.
D . DNS spoofing redirects domain queries, not Layer 2 switching.
Reference (CompTIA Network+ N10-009):
Domain: Network Security - Switch security, CAM table attacks, MAC flooding.

Bottlenecking occurs when a device in the network (such as an IPS) cannot process traffic efficiently, resulting in a dramatic drop in throughput. The significant difference between the firewall's speed (48.8 Mbps down) and the end-user devices' speeds (4.8 - 5.2 Mbps down) indicates a bottleneck caused by the IPS.
*Why not the other options?
*Packet loss (A) - Would typically cause connection timeouts, not just slow speeds.
*Channel overlap (C) - Affects only wireless networks, but the wired desktop is also experiencing slow speeds.
*Network congestion (D) - Would show fluctuations in both upload and download speeds, but upload speeds remain unaffected.
Reference:
CompTIA Network+ (N10-009) Official Guide - Chapter 13: Network Performance Optimization

The errors described - dropped packets and CRC (Cyclic Redundancy Check) errors - often indicate electromagnetic interference (EMI) on unshielded twisted pair (UTP) cabling. The correct replacement is STP (Shielded Twisted Pair), which has shielding that protects signals from external interference, ensuring better reliability in noisy environments such as data centers or near heavy electrical equipment.
A . Coaxial is not used for modern Ethernet server-switch links.
B . Shorter UTP cable does not solve EMI issues.
C . Plenum cable refers to cable jacket type for fire safety, not electrical shielding.
STP cabling reduces interference and ensures reliable gigabit+ Ethernet connections between servers and switches.
Reference:
Domain: Network Troubleshooting - Cabling issues, UTP vs. STP, EMI.