Rapid elasticity is a cloud feature that allows cloud services to scale up or down automatically according to demand or load on the server, without requiring manual intervention or configuration changes by users or administrators.This enables cloud services to provide optimal performance and efficiency at all times, as well as reducing costs by only using resources when needed. Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study-guide (page 98)

The symptoms suggest that the charging cable falls out of the phone, indicating that the charge port may contain foreign objects such as lint, which can interfere with the connection between the charging cable and the phone.

SSH (Secure Shell) encrypts data communications for secure remote login and management of network devices, ensuring all console connections are encrypted.
* Why Not B (LDAP): LDAP is used for directory services and does not encrypt by default.
* Why Not C (FTPS): FTPS encrypts file transfers, not console communications.
* Why Not D (SMTP): SMTP is used for email transmission, not for securing login sessions.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.7, network security protocols.

AAA stands for Authentication, Authorization, and Accounting, and it is a framework that provides security services for network access control. Authentication verifies the identity of a user or device that requests access to a network resource. Authorization determines what level of access or privileges are granted to a user or device based on their identity or role. Accounting tracks and records the usage of network resources by users or devices for billing or auditing purposes. RADIUS (Remote Authentication Dial-In User Service) is a protocol that implements AAA functions by communicating with a central server that stores user credentials and policies.

A hotspot provides a redundant internet connection using cellular data. This ensures connectivity for the meeting even if the primary ISP connection fails.
* Why Not A (Wireless access point): A wireless access point expands Wi-Fi connectivity but does not provide internet redundancy.
* Why Not B (Near-field communication): NFC is used for short-range communication, not internet connectivity.
* Why Not D (Bluetooth): Bluetooth is for short-range device pairing and cannot serve as a backup internet connection.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.7, internet connection types and redundancy.