Reference: CompTIA Network+ Certification Exam Objectives - Wireless Networks section.

A Distributed Denial of Service (DDoS) attack leverages multiple computers or bots (botnet) to flood a target system with requests, overwhelming its resources and making it unavailable to legitimate users. This is a common tactic used by attackers to disrupt services. The document explains:
"A DDoS (Distributed Denial of Service) attack involves multiple computers (often called bots) simultaneously sending requests to a single resource, overwhelming the system and causing a denial of service to legitimate users."

When deploying multiple Power over Ethernet (PoE) devices, the switch's power budget can be exhausted. If the available wattage on the switch cannot supply the additional AP, it will fail to power on. This is the most likely cause when previous APs worked fine but a new one does not.
A). Signal strength affects wireless connectivity, not whether the AP powers up.
B). Duplex mismatch causes poor throughput, not power failure.
D). CRC errors point to cabling issues but do not prevent booting if no power is available.
References (CompTIA Network+ N10-009):
Domain: Network Troubleshooting - PoE power budget considerations, device startup issues.

API gateways offer programmable control and real-time communication, commonly over HTTPS, which allows administrators to update and manage devices like access points remotely and efficiently.
From Andrew Ramdayal's guide:
"APIs enable automation and real-time interaction with network devices via secure interfaces, often using HTTPS for encrypted communication and control."

nmap (Network Mapper) is the best tool in this scenario. It can scan the 192.168.1.0/24 subnet to discover live hosts, open ports (like Telnet on port 23), and device types. It's ideal for mapping and auditing the network.
A). dig is a DNS lookup tool; not useful for identifying hosts on a subnet.
C). tracert shows the path packets take to a destination, not for host discovery.
D). telnet is the protocol being used, not a tool for scanning or identifying devices.
# Reference:
CompTIA Network+ N10-009 Official Objectives: 5.1 - Given a scenario, use the appropriate network troubleshooting tools.