The question asks for a wireless solution that provides the largest coverage across the city with a minimal number of transmission towers. Latency and overall bandwidth needs are not high priorities.
5G is a wireless technology that offers high speed, low latency, and large capacity, but it requires more transmission towers and has a shorter range than 4G1.
LTE stands for Long Term Evolution and is a 4G wireless technology that offers wide coverage, good speed, and moderate latency. It uses fewer transmission towers than 5G and has a longer range2.
Wi-Fi 4, Wi-Fi 5, and Wi-Fi 6 are wireless standards that operate in the 2.4 GHz and 5 GHz frequency bands. They offer high speed, low latency, and large capacity, but they have a limited range and require more access points than cellular technologies3.
Therefore, the best option for the city's needs is LTE, as it provides the largest coverage with a minimal number of transmission towers, and does not require high speed or low latency.
Reference:
5G vs 4G: What's the difference?
What is LTE?
Wi-Fi Standards Explained: What You Should Know

The correct option for this scenario is E. Reservation. DHCP reservations allow the administrator to assign a specific IP address to a device based on its MAC address. This ensures that the device always receives the same IP address from the DHCP server.
Dynamic assignment: This is the default behavior of DHCP, where IP addresses are assigned dynamically from a pool of available addresses.
Static IP on the server: This is not related to DHCP reservations. A static IP address is manually configured on the device itself, not assigned by the DHCP server.
IP helper: IP helper is used to forward DHCP requests across different subnets, but it doesn't specifically address MAC-based IP assignment.
Exclusion range: Exclusion ranges are used to prevent certain IP addresses from being assigned dynamically by DHCP. They do not assign specific IP addresses based on MAC addresses.
Reservation: DHCP reservations allow the administrator to assign specific IP addresses to devices based on their MAC addresses. This ensures consistent IP assignments for specific devices.
Reference:
CompTIA Network+ Certification Exam Objectives

A POE injector is a device that provides power and data over a single Ethernet cable to a POE device, such as a VoIP phone, a wireless access point, or a security camera12.
A POE injector is needed when the switch or router that connects to the POE device does not support POE or does not have enough POE ports available12.
A POE injector can be installed between the switch or router and the POE device, using two Ethernet cables: one from the switch or router to the injector, and another from the injector to the POE device12.
A POE injector can supply up to 30W of power per port, depending on the POE standard it supports (802.3af or 802.3at)12.
B . Enable MDIX is not a correct answer because MDIX is a feature that allows a switch or router to automatically detect the type of cable (straight-through or crossover) and adjust the pin assignments accordingly34.
MDIX is not related to providing power to a POE device, and it is usually enabled by default on modern switches and routers34.
C . Use a crossover cable is not a correct answer because a crossover cable is a type of Ethernet cable that swaps the transmit and receive pairs of wires, allowing two devices of the same type (such as two switches or two computers) to communicate directly56.
A crossover cable is not needed to connect a VoIP phone to a switch or router, as they are different types of devices that use different pin assignments56.
A crossover cable also does not provide power to a POE device, and it may not work with gigabit Ethernet or auto-MDIX devices56.
D . Reconfigure the port is not a correct answer because reconfiguring the port on the switch or router that connects to the VoIP phone does not address the issue of providing power to the phone78.
Reconfiguring the port may involve changing the speed, duplex, VLAN, or security settings, but none of these affect the power delivery to the POE device78.
Reconfiguring the port may also cause network connectivity or performance issues if the settings are not compatible with the VoIP phone or the network78.
Reference:
What Is a PoE Injector and How to Use It? | FS Community
Power Injector for PoE Networks | Eaton
CCNA / CCENT / Network+ Tutorial: Crossover Cables And Auto MDI-X
Straight-Through and Crossover Cables - N10-008 CompTIA Network+ : 2.3
Straight-Through, Crossover, and Rollover Cables - CompTIA Network+ N10-006 - 1.5 CompTIA Network+ Cheat Sheet (Updated for Latest Exam) - StationX CompTIA Network+ : Common TCP And UDP Default Ports - Tutorialsweb.Com A Guide to Network Troubleshooting - CompTIA

Fibre Channel is a high-speed network technology that is mainly used for storage area networks (SANs). It provides reliable and secure data transfer between servers and storage devices, such as disk arrays, tape libraries, and optical jukeboxes. It uses protocols such as SCSI, FCP, and FICON to transport data over optical fiber or copper cables678 Fibre Channel transceivers are devices that convert electrical signals to optical signals and vice versa, and allow Fibre Channel devices to communicate over different media types and distances. They are usually pluggable modules that fit into standard ports on Fibre Channel switches, adapters, and storage devices. They have different specifications and standards, such as SFP, SFP+, QSFP, and CFP, depending on the data rate, wavelength, and cable type they support.
8 Gbps transceivers are Fibre Channel transceivers that support a data rate of 8 gigabits per second, which is also known as Fibre Channel-8G or 8GFC. They are typically SFP+ modules that use 850 nm wavelength and multimode fiber for short-reach applications, or 1310 nm wavelength and single-mode fiber for long-reach applications. They can support cable distances up to 10 km or 40 km, depending on the fiber type and quality.

An evil twin is a type of rogue access point that mimics a legitimate one by using the same SSID, encryption, and authentication settings.
An attacker can set up an evil twin near a corporate network and trick users into connecting to it instead of the real one.
Once connected, the attacker can intercept the user's network traffic, capture their credentials, and launch other attacks such as phishing, malware injection, or man-in-the-middle.
To prevent evil twin attacks, network administrators should use strong encryption and authentication methods, such as WPA2-Enterprise with 802.1x, and monitor the wireless spectrum for any unauthorized access points. Reference:
CompTIA Network+ N10-008 Exam Common Attack Types Quiz
Rogue Access Points and Evil Twins - SY0-601 CompTIA Security+ : 1.4 - Professor Messer IT Certification Training Courses CompTIA Network+ (N10-008) Practice Test Questions