DCSW study plan

Build a one-page map of the standards landscape: map each of the four ANSI/TIA-942, Uptime Institute Tier, BICSI 002, and EN 50600 rating schemes to the four availability levels and note where the definitions diverge.

Distinguish rated vs. concurrently maintainable vs. fault tolerant topologies by writing three short worked examples that classify a given single-line description into the correct topology class.

Translate the tier/criticality concepts into design consequences: list for each level which distribution paths, redundant components, and maintenance procedures are implied.

Define the key design-basis parameters (design IT load density, floor loading, ceiling height, redundancy class, availability target) and record the typical value ranges used in practice.

Summarize the standards' treatment of site selection, structural loading, and compartmentalization in your own notes with clause-level references you can cite.

Trace utility service from the medium-voltage feed through transformers, switchgear, ATS/STS, UPS, and PDU to the rack, and label every point of redundancy on your own single-line diagram.

Compare UPS topologies (double conversion, line-interactive, rotary, modular) on efficiency, ride-through, fault clearing, and maintenance bypass implications, and state which fits which tier.

Size a battery string from a stated load profile: compute required runtime, apply aging and temperature derating, and verify the result against a manufacturer's discharge curve.

Explain grounding and bonding for a data center: separately derived systems, bonding jumpers, isolated ground myths, and the role of the equipotential ground grid.

Explain generator and fuel-system design decisions: N+1 sizing, load-step acceptance, fuel polishing, day-tank sizing, and testing under load.

Compute heat load from IT, lighting, people, and envelope, and convert between kW, tons, and CFM so you can sanity-check any vendor's numbers.

Compare air-cooled, water-cooled, and economizer-based cooling plants on PUE impact, water use, and climate suitability, and justify a selection for two contrasting climates.

Design an airflow path: choose containment strategy, calculate bypass and recirculation, and set supply/return temperature targets within ASHRAE recommended envelopes.

Explain liquid cooling options (direct-to-chip, immersion, rear-door heat exchangers) and identify the rack densities at which air cooling stops being practical.

Draft a humidity and pressurization control strategy that avoids both overcooling and condensation risk, and state the failure modes if it is misconfigured.

Design a structured cabling hierarchy from entrance facility to horizontal distribution, specifying media, distance limits, and pathway separation from power.

Explain redundancy at the network layer: compare redundant switch pairs, MLAG/VPC, and routed designs, and state what each protects against.

Distinguish meet-me-room, MDA, HDA, EDA, and ZDA roles and describe how cross-connect and interconnect architectures change the cabling count.

Plan physical infrastructure for growth: port density per rack, fiber counts, conduit fill, and labeling schemes that survive a decade of change.

Select detection technology per zone (spot smoke, VESDA/ASD, linear heat, water-flow) and justify placement in white space, ceiling voids, and subfloors.

Design a clean-agent suppression scheme: agent selection, concentration calculation inputs, hold time, and enclosure integrity testing requirements.

Sequence a fire event end to end: detection, alarm, suppression release, damper/shutdown interlock, egress, and coordination with the fire authority.

Build a layered physical security model: perimeter, lobby, mantraps, cabinet locks, and the credential and anti-passport (tailgating) controls at each layer.

Map surveillance and access-control data retention, privacy, and audit obligations to the operational procedures that enforce them.

Write a commissioning plan covering Level 1 through Level 5: factory, site, functional performance, integrated systems, and post-occupancy, with the acceptance criteria for each.

Distinguish commissioning, integrated systems testing, and continuous verification, and describe what a failure during integrated testing should trigger.

Build a preventive maintenance calendar for electrical, mechanical, and fire systems, including the load-bank and generator test cadence and the documentation each produces.

Explain MOP/SOP/EOP discipline: what belongs in each, who approves, and how change control prevents configuration drift.

Define operational KPIs (PUE, availability, MTTR, MTBF, capacity utilization) and describe how each is measured and where the data comes from.

Perform a risk assessment: identify threats (utility, weather, human, cyber-physical), score likelihood and impact, and rank mitigations by cost-effectiveness.

Build a business impact analysis that ties RTO and RPO for each critical system to the infrastructure and process design that delivers it.

Draft a continuity and recovery plan structure: roles, escalation, failover procedures, communications, and the exercise cadence that keeps it current.

Map compliance obligations (audit, certification, contractual SLAs, data protection) to the evidence artifacts operations must retain.

Revisit the week-1 standards crosswalk and reconcile it with the risk and continuity posture you have now built.

Synthesize across domains by solving three full-length practice scenarios end to end and reviewing every missed item against its source concept.

Drill weak areas identified by practice scores, spending the majority of the week on the two lowest-scoring domains.

Rehearse calculations under time pressure: battery sizing, heat load, PUE, redundancy math, and availability arithmetic.

Build a one-page exam-day reference sheet of formulas, tier definitions, and standards names from memory, then verify it against your notes.