Explanation/Reference:
Explanation:
IPSec is a protocol for encrypting and authenticating packets during transmission between two parties and can involve any type of device, application, or service. The protocol performs both the authentication and negotiation of security policies between the two parties at the start of the connection and then maintains these policies throughout the lifetime of the connection. TLS operates at the application layer, not the network layer, and is widely used to secure communications between two parties. SSL is similar to TLS but has been deprecated. Although a VPN allows a secure channel for communications into a private network from an outside location, it's not a protocol.

Explanation
An injection attack is where a malicious actor will send commands or other arbitrary data through input and data fields with the intent of having the application or system execute the code as part of its normal processing and queries. This can trick an application into exposing data that is not intended or authorized to be exposed, or it could potentially allow an attacker to gain insight into configurations or security controls. Missing function-level access control exists where an application only checks for authorization during the initial login process and does not further validate with each function call. Cross-site request forgery occurs when an attack forces an authenticated user to send forged requests to an application running under their own access and credentials. Cross-site scripting occurs when an attacker is able to send untrusted data to a user's browser without going through validation processes.

Explanation
With multiple tenants within the same hosting environment, any failure to properly classify data may lead to potential exposure to other customers and applications within the same environment.

A hybrid cloud model spans two more different hosting configurations or cloud providers. This would enable an organization to continue using its current hosting configuration, while adding additional cloud services to enable disaster recovery capabilities. The other cloud deployment models--public, private, and community--would not be applicable for seeking a disaster recovery configuration where cloud services are to be leveraged for that purpose rather than production service hosting.

Explanation/Reference:
Explanation:
Firewalls take into account source IP, destination IP, the port the traffic is using, as well as the network protocol (UDP/TCP). Whether or not the traffic is encrypted is not something a firewall is concerned with.