Practice Test Geeks(C4) CryptoCurrency Certification Consortium Practice Test
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Cryptographic Principles Flashcards

6 cards from real C4 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Cryptographic Principles flashcards as text

  1. What is the primary role of a hash function in blockchain technology?

    Answer: To ensure data integrity

    Hash functions convert input data into a fixed-size string, providing integrity by making it nearly impossible to alter data without changing the hash.

  2. What type of cryptography is used to secure cryptocurrency transactions?

    Answer: Asymmetric cryptography

    Asymmetric cryptography uses a pair of keys (public and private) to secure data, ensuring only the intended recipient can access it.

  3. What is a digital signature in cryptocurrency?

    Answer: A cryptographic validation of a transaction

    A digital signature is a cryptographic technique that verifies the authenticity and integrity of a message or transaction.

  4. Why are private keys important in blockchain systems?

    Answer: To access and control wallet funds

    Private keys provide exclusive access to one's digital assets, enabling users to authorize and sign transactions securely.

  5. What happens if a user loses their private key in cryptocurrency?

    Answer: Assets become permanently inaccessible

    Losing the private key means losing access to the associated cryptocurrency, as there is no central recovery system in decentralized networks.

  6. Which algorithm is used by Bitcoin for hashing?

    Answer: SHA-256

    Bitcoin uses the SHA-256 algorithm to secure blocks and verify transactions by producing unique and irreversible hashes.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. cryptoconsortium.org — Renewal, retake fee, retake policy, score release, eligibility, exam format, passing score, test dates, time limit, score validity · verified Oct 2026