Practice Test GeeksTeradata Practice Test
← All Teradata Flashcard Decks

Teradata Architecture Flashcards

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

Read the first 6 Teradata Architecture flashcards as text

  1. What is Teradata's Parallel Data Extension (PDE) layer responsible for?

    Answer: Abstracting hardware differences and providing a consistent interface for Vprocs

    PDE sits between the operating system and Teradata software, providing hardware-independent services like inter-Vproc messaging and parallel I/O.

  2. In Teradata, what is a clique?

    Answer: A group of nodes that share the same set of disk arrays

    A clique is a set of nodes that share access to the same disk arrays, allowing another node to take over disks if one node fails.

  3. What is the purpose of the Teradata Gateway?

    Answer: Manages client connections and translates client requests into internal Teradata protocol

    The Gateway handles external client session management and translates incoming requests from tools like JDBC/ODBC into Teradata's internal message format.

  4. Which Teradata feature automatically redistributes data across AMPs when AMPs are added or removed?

    Answer: Teradata Expansion (AMP expansion)

    When AMPs are added to a Teradata system, a redistribution process rehashes all existing data to ensure even distribution across the new configuration.

  5. What is the function of the Ferret utility in Teradata?

    Answer: Scans disk storage to verify data integrity and detect cylinder failures

    Ferret is a Teradata utility that scans the disk storage subsystem to check for data integrity issues and hardware cylinder faults.

  6. In Teradata, what is the significance of the Row Hash?

    Answer: A 32-bit value computed from the PI that identifies the AMP and row position

    The Row Hash is a 32-bit value derived from the Primary Index by Teradata's hashing algorithm, determining both which AMP stores the row and its position within that AMP.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

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. teradata.com — Test delivery, eligibility, passing score, renewal, retake policy, score validity, exam information · verified Oct 2026