Match each data security concept to its description.
Drag a concept onto its matching description — or click a concept then click the description.
Convert data into code to prevent unauthorized access
Replace sensitive data with non-sensitive placeholder
Hide parts of data (e.g., show only last 4 digits)
Restrict data access based on user permissions
Log of all data access and modifications
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Encryption: Process of converting data into a coded form to prevent unauthorized access.
The correct matches are: Encryption - encoding data, Authentication - verifying identity, Authorization - access control, Non-repudiation - denying actions. Common confusions arise from swapping Encryption and Authentication.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Encryption: Process of converting data into a coded form to prevent unauthorized access.
Why this is correct
Encryption is correctly defined as the process of encoding data to protect it from unauthorized access.
Authentication: Process of verifying the identity of a user or system.
Why this is correct
Authentication is correctly defined as the process of verifying identity.
Authorization: Process of granting or denying access to resources based on roles.
Why this is correct
Authorization is correctly defined as the process of granting or denying access based on permissions.
Non-repudiation: Assurance that a party cannot deny the authenticity of their actions.
Why this is correct
Non-repudiation is correctly defined as the assurance that a party cannot deny their actions.
Encryption: Process of verifying identity.
Why it's wrong here
Incorrect — this describes Authentication, not Encryption.
Authentication: Process of converting data into code.
Why it's wrong here
Incorrect — this describes Encryption, not Authentication.
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About these practice questions
Courseiva writes every DA0-002 question from scratch — 986 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.