Authentic WGU Certification Exam Cybersecurity-Architecture-and-Engineering Questions Answers

The correct answer is B — Asymmetric encryption.

According to WGU Cybersecurity Architecture and Engineering (KFO1 / D488), asymmetric encryption uses a pair of public and private keys, allowing the sender to encrypt the documents with the recipient’s public key, ensuring that only the recipient’s private key can decrypt them. This guarantees confidentiality even over an unsecured network.

Stream ciphers (A) and block ciphers (C) are types of symmetric encryption, requiring a shared secret key. Hash functions (D) provide integrity, not confidentiality.

Reference Extract from Study Guide:

"Asymmetric encryption enables secure data exchange by allowing encryption with a public key and decryption only with a corresponding private key, ensuring confidentiality over unsecured networks."

— WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Cryptographic Methods and Key Management

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Obfuscating error messagesprevents attackers from receiving technical details (e.g., software version, file paths, or database errors) that they can use for exploitation. This is part ofsecure codinganderror handlingpractices.

OWASP Secure Coding Practices – Error Handling and Logging:

“Applications should not disclose detailed error messages to users. Instead, provide generic messages to prevent leakage of system or application details.”

HTTPS secures transport, but doesn't addressinformation disclosurevia error output.

????WGU Course Alignment:

Domain:Information Systems and Architecture

Topic:Implement secure design practices (e.g., error handling, obfuscation)

Tabletop exercisessimulate emergency scenarios in alow-risk, discussion-based format, allowing teams to walk through recovery procedures and decision-making without disrupting actual business operations.

NIST SP 800-84 (Guide to Test, Training, and Exercise Programs):

“Tabletop exercises are effective tools for validating plans and procedures in a discussion format without impacting normal operations.”

Full interruption tests are disruptive; checklists and walkthroughs offer lower fidelity evaluations.

????WGU Course Alignment:

Domain:Business Continuity and Disaster Recovery

Topic:Test disaster plans using low-impact simulation techniques