312-85 Data Collection And Processing Practice Question
When deduplicating threat intelligence data, which unique identifier is most effective for comparing two different 'malware' objects?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The object ID (UUID).
The 'pattern' or 'hash' (if applicable) or a unique 'external_id' are common identifiers, but 'id' in STIX is the unique object identifier.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The file size.
Why it's wrong here
File size is not unique to a malware sample.
- ✗
The source name.
Why it's wrong here
Multiple sources may report the same malware.
- ✗
The timestamp of ingestion.
Why it's wrong here
Different systems ingest at different times.
- ✓
The object ID (UUID).
Why this is correct
The STIX ID is designed to be the globally unique identifier for objects.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This 312-85 practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 312-85 exam.