The network utilized is not one of the key components of an encryption system architecture. In fact, a network is not even required for encryption systems or the processing and protection of data. The data, software used for the encryption engine itself, and the keys used to implement the encryption are all core components of an encryption system architecture.

Defining the scope of the plan is the very first step in the overall process. Security should be included from the very earliest stages and throughout the entire process. Bringing in security at a later stage can lead to additional costs and time delays to compensate for gaps in planning. Risk assessment, requirements gathering, and analysis are all later steps in the process, and adding in security at any of those points can potentially cause increased costs and time delays.

Regulated PII data carries legal and jurisdictional requirements, along with official penalties for its misuse or disclosure, which can be either civil or criminal in nature. Legal and protected are similar terms, but neither is the correct answer in this case. Contractual requirements can carry financial or contractual impacts for the improper use or disclosure of PII data, but not legal or criminal penalties that are officially enforced.

Plausibility, here, is a distractor and not specifically relevant to cloud forensics.

Any application can be a possible target of denial of service (DoS) attacks. From the application side, the developers should minimize how many operations are performed for unauthenticated users. This will keep the application running as quickly as possible and using the least amount of system resources to help minimize the impact of any such attacks. None of the other options provided is the correct term.

While the other answers are all steps in moving from normal operations to maintenance mode, we do not necessarily initiate any enhanced security controls.

Homomorphic encryption hopes to achieve that goal; the other options are terms that have almost nothing to do with encryption.

Interoperability is ability to easily move between cloud providers, by either moving or reusing components and services. This can pertain to any cloud deployment model, and it gives organizations the ability to constantly evaluate c osts and services as well as move their business to another cloud provider as needed or desired. Portability relates to the wholesale moving of services from one cloud provider to another, not necessarily the reuse of components or services for other purposes. Although resiliency is not an official concept within cloud computing, it certainly would be found throughout other topics such as elasticity, auto-scaling, and resource pooling. Scalability pertains to changing resource allocations to a service to meet current demand, either upward or downward in scope.

Cloud environments depend heavily on API calls for management and automation. Any vulnerability with the APIs can cause significant risk and exposure to all tenants of the cloud environment. Resource pooling and elasticity could both be impacted by insecure APIs, as both require automation and orchestration to operate properly, but automation is the better answer here. Redundancy would not be directly impacted by insecure APIs.

Forensic analysis is the least challenging of the answers provided as it refers to the analysis of data once it is obtained. The challenges revolve around obtaining the data for analysis due to the complexities of international law, the decentralization of data storage or difficulty knowing where to look, and identifying the data owner, controller, and processor.

Regulatory changes by themselves would not trigger a need for new testing of a BCDR plan. Any changes necessary for regulatory compliance would be accomplished through configuration changes or software updates, which in turn would then trigger the necessary new testing. Annual testing is crucial to any BCDR plan. Also, any time major configuration changes or software updates are done, the plan should be evaluated and tested to ensure it is still valid and complete.

The WS-Security specifications, as well as the WS-Federation system, are built upon XML, WDSL, and SOAP. SAML is a very similar protocol that is used as an alternative to WS.XML, WDSL, and SOAP are all integral to the WS-Security specifications.

With SaaS, the application is a shared responsibility between the cloud provider and cloud customer. Although the cloud provider is responsible for deploying, maintaining, and securing the application, the cloud customer does carry some responsibility for the configuration of users and options. Regardless of the cloud service category used, the physical environment is always the sole responsibility of the cloud provider. With all cloud service categories, the data and governance are always the sole responsibility of the cloud customer.

We don’t have physical ownership, control, or even access to the devices holding the data, so physical destruction, including melting, is not an option. Overwriting is a possibility, but it is complicated by the difficulty of locating all the sectors and storage areas that might have contained our data, and by the likelihood that constant backups in the cloud increase the chance we’ll miss something as it’s being overwritten. Cryptoshredding is the only reasonable alternative. Cold fusion is a red herring.