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Comprehensive and Detailed Explanation From Exact Extract:

In operations and facilities management, scalability refers to the ability of a system, process, or facility to adapt and grow as needs change. For a facility layout, scalability includes:

The capacity to reconfigure work areas for new product lines.

The ability to incorporate new equipment or technology upgrades without major redesign.

Maintaining performance while expanding or adjusting production capabilities.

A scalable layout is designed with future changes in mind so that the organization can respond quickly to market and technological shifts.

Why the other options are incorrect:

B. Material requirements planning – This is a planning system for materials and inventory, not physical layout adaptability.

C. Operational redundancy – This refers to having backup systems or capacity to maintain operations, not layout flexibility.

D. Sustainability – This focuses on environmental and long-term resource impact, not specifically on layout adaptability for new products or technologies.

Therefore, the correct term describing the ability to adapt a facility layout for new product lines or technology upgrades is scalability.

Role of a Trusted Third Party:

Trusted third parties, like Certificate Authorities (CAs), validate the correlation between users and public keys.

They ensure secure communication by providing authentication (verifying user identity) and authorization (granting access rights).

Advantages in Disaster Recovery Planning:

Simplifies secure communication during recovery processes.

Provides a trusted mechanism for verifying identities and preventing unauthorized access.

Why Other Options Are Incorrect:

Option A (Monitors enclosures): Not related to public key verification.

Option B (Protects against encrypted attacks): While encryption enhances security, it is not the purpose of a trusted third party.

Option D (Features full-time monitoring): Not a function of trusted third parties like CAs.

Comprehensive and Detailed Explanation From Exact Extract:

In a colocation data center model, the facility (building, power, cooling, physical security, and connectivity) is owned and managed by a third-party provider, while the enterprise typically installs and manages its own servers and network equipment inside that facility. The key difference from an on-premises data center is who is responsible for operating and managing the physical environment.

An on-premises data center is located at and operated by the enterprise itself, which means the organization directly manages the building infrastructure, power, cooling, physical access, and related facilities.

Option A is incorrect because using dedicated hardware provided by the enterprise can occur in both on-premises and colocation models. It does not clearly distinguish colocation from on-premises.

Option B is incorrect because being located within the enterprise’s premises describes an on-premises data center, not a colocation center.

Option C is incorrect because ownership and operation by the enterprise also corresponds to an on-premises model.

Option D is correct because a colocation data center is managed by a third-party provider, who is responsible for the physical site and its supporting infrastructure while the enterprise uses that space to host its equipment.

The Design phase of the SDLC shifts the project from a logical/business focus to a physical/technical perspective. In this phase, system architecture, database designs, user interfaces, and network requirements are defined to provide the technical blueprint for system development.

Option A (Maintenance): Focuses on updates and fixes after deployment.

Option B (Development): Involves building the system using code.

Option D (Implementation): Deploys the system into production.

Thus, the phase that defines the architecture is the Design phase.