______ is keeping the same number of systems, but migrating each system to a larger system.

Question

BlackTom AI · Accepted Answer

Scaling up (vertical scaling) increases the capacity of each existing system by moving it to a larger machine or allocating more resources to the same instance.

1) Relevant concepts
- Scaling up (vertical scaling): improving the size, CPU, memory, or I/O capacity of an individual server or system so the same workload runs on a more powerful instance.
- Scaling out (horizontal scaling): adding more systems/instances to handle increased load by distributing work across more nodes.
- Related ideas: replication (copying data/services), partitioning/sharding (splitting data across nodes), and load balancing (distributing requests across available systems).

2) Step-by-step reasoning
- The phrase “keeping the same number of systems” implies you are not adding or removing instances; the count remains constant.
- “Migrating each system to a larger system” implies each existing system is replaced or upgraded to a machine with greater capacity.
- These two points together describe vertical scaling: same number of systems but each with higher capacity.

3) Calculations
- No numeric calculation is required. Conceptual equivalence is sufficient: number_of_systems_before = number_of_systems_after; capacity_per_system_after > capacity_per_system_before.

4) Why the correct answer is correct
- “Scaling up” (vertical scaling) is the standard terminology for moving workloads to larger machines or adding more resources to the same nodes while keeping the same number of nodes. This matches exactly the wording provided.

5) Why other options would be incorrect
- Scaling out (horizontal scaling) would increase the number of systems, not keep the same number.
- Replication or clustering imply making copies or grouping systems rather than migrating each to a larger instance.
- Load balancing and sharding change distribution, not inherently the size of each system.

6) Conclusion
The provided correct answer is Scaling up, which matches the described action of keeping the same number of systems while migrating each to a larger system.

______ is keeping the same number of systems, but migrating each system to a larger system.Single choice

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