Explanation
The digitizer is the component that converts the touch input into electrical signals that are processed by the tablet. If the digitizer is damaged or malfunctioning, it may not register the touch input correctly or at all. The technician can test the digitizer using a diagnostic tool or by replacing it with a known good one. Updating the device drivers, replacing the damaged screen protector, or performing a factory reset are unlikely to fix the issue, as they do not address the hardware problem.
Reference: [CompTIA A+ Core 1 (220-1101) Certification Study Guide], page 16.

Explanation
The correct answer is C. Ethernet.
An Ethernet cable is a type of network cable that is used to connect devices on a local area network (LAN), such as computers, routers, switches, and modems. Ethernet cables have RJ-45 connectors at both ends, which are similar to telephone jacks but larger. Ethernet cables can carry data signals at speeds ranging from 10 Mbps to 10 Gbps, depending on the type and quality of the cable.
A cable modem is a device that connects to a coaxial cable from a cable service provider and provides high-speed internet access. A SOHO router is a small office/home office router that connects to a cable modem or DSL modem and provides network and internet access to multiple devices on a LAN. A SOHO router typically has one WAN port and four LAN ports. The WAN port is used to connect to the cable modem or DSL modem, while the LAN ports are used to connect to computers or other devices on the LAN.
To connect a cable modem to a SOHO router, an Ethernet cable is needed. The Ethernet cable is plugged into the WAN port of the SOHO router and the Ethernet port of the cable modem. This allows the SOHO router to receive an IP address from the cable service provider and share it with the devices on the LAN using network address translation (NAT). The SOHO router also provides firewall and wireless features for the LAN.
The other options are incorrect because they are not suitable for connecting a cable modem to a SOHO router.
FireWire is a type of serial bus that is used to connect devices such as digital cameras, external hard drives, and audio interfaces. FireWire cables have different connectors than Ethernet cables and cannot be used for network communication. Fiber is a type of optical cable that uses light signals to transmit data over long distances. Fiber cables have special connectors that are not compatible with Ethernet ports. Coaxial is a type of copper cable that has a central conductor surrounded by an insulating layer and a braided shield. Coaxial cables are used for cable TV and internet services, but they cannot be directly connected to Ethernet ports without an adapter.
References:
CompTIA A+ Certification Exam: Core 1 Objectives (220-1001)
Installing and Configuring a Cable Modem/DSL Router
Cisco 831 Router and SOHO 91 Router Cabling and Setup Quick Start Guide

A patient record portal is a web-based application that allows patients to access their health information, such as medical history, test results, prescriptions, and appointments. A patient record portal needs to be secure, reliable, and compliant with the health data regulations of the country or region where it operates1.
The type of cloud that best describes the type of cloud a healthcare company should use for a patient record portal is D. Private. A private cloud is a cloud computing model that is dedicated to a single organization and provides exclusive access and control over its resources and data2. A private cloud can offer the following benefits for a patient record portal:
* Enhanced security and privacy: A private cloud can protect the sensitive health data from unauthorized access or breaches by using encryption, firewalls, authentication, and other security measures. A private cloud can also comply with the health data regulations, such as HIPAA in the US or GDPR in the EU, by ensuring that the data is stored and processed within the jurisdiction of the organization3.
* Improved performance and reliability: A private cloud can optimize the speed and availability of the patient record portal by using dedicated servers, network bandwidth, and storage capacity. A private cloud can also ensure that the patient record portal can handle high demand and traffic without compromising its quality or functionality3.
* Greater customization and flexibility: A private cloud can tailor the patient record portal to the specific
* needs and preferences of the organization and its patients by using customized applications, interfaces, and features. A private cloud can also scale up or down the resources and services of the patient record portal as needed without affecting its performance or cost3.

Explanation
The correct answer is D. Default gateway.
A default gateway is the device that connects a local network to other networks, such as the internet. A default gateway is usually a router or a modem that has an IP address on the same subnet as the local network. A default gateway is necessary for a device to communicate with devices outside its local network.
In this case, the user has a self-configured, static IP address of 192.168.1.20, which belongs to the subnet
192.168.1.0/24 (with a subnet mask of 255.255.255.0). However, the default gateway is set to 192.168.0.1, which belongs to a different subnet (192.168.0.0/24). This means that the user's device cannot reach the default gateway, and therefore cannot connect to the internet.
The technician should edit the default gateway to match the correct subnet of the user's device, such as
192.168.1.1 or 192.168.1.254, depending on the configuration of the network.
Reference: CompTIA A+ Core 1 Sample Questions and Study Guide