CIS Data Migration & Integration Flashcards

In CIS integration design, what is an API (Application Programming Interface) PRIMARILY used for?

Answer: Defining how software components communicate and exchange data

An API defines the rules and protocols for how different software applications communicate and share data with each other.

What is the purpose of a data reconciliation step after a CIS migration?

Answer: To verify that migrated data in the target matches the source data accurately

Data reconciliation validates that record counts, key values, and data integrity in the target system match the source, confirming migration success.

Which integration pattern uses a central hub to route messages between multiple systems, reducing point-to-point complexity?

Answer: Hub-and-spoke (ESB) pattern

The hub-and-spoke pattern, often implemented with an Enterprise Service Bus (ESB), centralizes integration logic and reduces the number of direct connections needed.

During CIS migration testing, a 'mock migration' or 'dress rehearsal' is performed to:

Answer: Practice the full migration process in a non-production environment to identify issues

A mock migration rehearses the entire cutover process in a test environment so that timing, sequencing, and potential errors can be identified before go-live.

What does 'idempotency' mean in the context of CIS API integrations?

Answer: Calling the same API operation multiple times produces the same result as calling it once

An idempotent API operation can be safely retried multiple times without causing duplicate or inconsistent results, which is critical for error recovery.

In a CIS data migration, PII (Personally Identifiable Information) must be handled by:

Answer: Applying masking or encryption in non-production environments and complying with regulations

PII must be masked or encrypted in non-production environments to protect privacy, and all migration activities must comply with applicable regulations such as GDPR or CCPA.