ITPEC FE Subject A April 2026 Question 44
As for the activities in capacity management to estimate a service’s capacity, capability, and performance, which of the following is trend analysis?
Explanation
Understanding the chronological usage of a resource and predicting future changes — trend analysis extrapolates from historical measurements.
Capacity management estimates capacity and performance with several techniques. Trend analysis is the simplest: take the recorded usage of CPU, storage or bandwidth over time, find its direction, and project when a threshold will be reached. It needs no model of the system, only history.
Answer (c)
Why not others:
- •(a) — building a baseline model that reproduces current performance, the first phase of modelling
- •(b) — simulation modelling: generating artificial transactions and observing response time and throughput
- •(d) — analytical modelling: computing response time and throughput mathematically, for example with queueing theory
Key rule: Trend analysis projects measured history forward; modelling (baseline, analytical, simulation) builds a representation of the system and experiments on it.
Service Management · AI-written, may contain errors
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official FE past-paper collection or Report an issue.