The correct answer is D. Enabling HTTPS-Only Mode, because HTTPS ensures that all communication between the browser and websites is encrypted using TLS (Transport Layer Security). This protects sensitive information such as usernames, passwords, and payment details from interception.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, HTTPS encrypts data in transit, preventing attackers from eavesdropping or modifying communications. HTTPS-only modes in modern browsers block or warn users when a site does not support secure connections.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide emphasizes that HTTPS is essential for protecting authentication credentials and financial information, especially on public or untrusted networks.
Enforcing HTTPS-only connections ensures users cannot accidentally submit data over unencrypted HTTP.
The Mike Meyers / Mark Soper Lab Manual clarifies that disabling cookies or JavaScript may break website functionality but does not guarantee encryption. Pop-up blockers address nuisance behavior, not data security.
Because the objective is to encrypt browser communications and protect sensitive data, enabling HTTPS- Only Mode is the most effective and direct solution, making D the correct answer.

Comprehensive and Detailed Explanation From Exact Extract:
Videoconferencingplatforms allow real-time face-to-face communication and are ideal for collaborative training sessions involving remote employees.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Videoconferencing tools such as Zoom or Microsoft Teams are specifically designed for real-time communication and training, making them ideal for executive or large-group meetings."

Comprehensive and Detailed Explanation From Exact Extract:
Managed Detection and Response (MDR)involves outsourcing security monitoring to a third-party that uses multiple tools and analytics.
FromTravis Everett - All-in-One Exam Guide:
"MDR providers handle threat detection and response using a combination of advanced tools, analytics, and expert personnel."

Comprehensive and Detailed Explanation From Exact Extract:
The user's issue likely stems from amobile data restriction or cap, especially since uploads work on Wi-Fi but not cellular. Checkingdata usage limitswill help determine if mobile uploads are blocked.
FromAll-in-One Exam Guide:
"When data-intensive functions fail on mobile networks but not on Wi-Fi, it's often due to data caps or metered connection limits."

Comprehensive and Detailed Explanation From Exact Extract:
To prevent external access, the technician should avoid exposing the surveillance system's port to the public internet. Port mapping (also known as port forwarding) is the method used to control which internal devices and ports are accessible from the outside. By not configuring port forwarding for the device, external login attempts are effectively blocked.
B: Subnetting organizes IP addresses but doesn't directly restrict access.
C: A static IP ensures consistent addressing but does not secure access.
D: Content filtering is used to restrict web content, not to block access to a web interface.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast security measures and tools.
Study Guide Section: SOHO router security - port forwarding and blocking external access