WGU : Introduction-to-Cryptography Questions & Answers
Updated: Oct 04, 2026
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WGU Introduction-to-Cryptography Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Hash Functions and Message Authentication | - MAC and HMAC mechanisms - Cryptographic hash functions (e.g., SHA family concepts) |
| Topic 2: Foundations of Cryptography | - Historical and modern cryptography principles - Core concepts of confidentiality, integrity, authentication, non-repudiation |
| Topic 3: Key Management and PKI | - Certificates, certificate authorities, and PKI structure - Key exchange and lifecycle management |
| Topic 4: Cryptographic Protocols and Applications | - Secure communication design principles - TLS/SSL conceptual overview |
| Topic 5: Symmetric Encryption | - Block and stream ciphers - AES and legacy algorithms (e.g., DES conceptually) |
| Topic 6: Asymmetric Encryption | - RSA and ECC fundamentals - Public key cryptography principles |
WGU Introduction to Cryptography HNO1 Sample Questions:
(Which mechanism can be applied to protect the integrity of plaintext when using AES?)
- A. Kerberos key sharing
- B. RSA
- C. Message Authentication Code (MAC)
- D. RC4
Correct Answer: C 🗳️
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(Which number of bits gets encrypted each time encryption is applied during stream encryption?)
- A. 256
- B. 1
- C. 40
- D. 192
Correct Answer: B 🗳️
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(Which encryption algorithm encrypts with one key, decrypts with another key, and then encrypts with the first key?)
- A. 3DES
- B. IDEA
- C. DES
- D. AES
Correct Answer: A 🗳️
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(What is the RC4 encryption key size when utilizing WPA with Temporal Key Integrity Protocol (TKIP)?)
- A. 256 bits
- B. 128 bits
- C. 56 bits
- D. 40 bits
Correct Answer: B 🗳️
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(Which cryptographic operation uses a single key?)
- A. Padding
- B. Asymmetric
- C. Symmetric
- D. Hashing
Correct Answer: C 🗳️
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