Skip to question links

Reusable verification architecture

UVM Interview Questions

01
What this tests

UVM interviews test whether you can reason about a verification environment as a connected system, not whether you can recite class names. A strong candidate can follow a transaction from a sequence through the sequencer-driver handshake, explain what a monitor publishes, and choose the right checking path for ordered or out-of-order traffic.

02
How to practice

Use this collection to practice those decisions in a deliberate order. Start with object and component roles, then work through build, connect, run, and end-of-test behavior.

Topic breakdown

What to be ready to explain

01

Lifecycle and configuration

Explain construction, phase ordering, objections, configuration scope, and factory resolution without relying on memorized slogans.

  • Phases
  • Objections
  • config_db
  • Factory overrides
02

Stimulus and communication

Trace transactions through sequences, drivers, monitors, analysis ports, and TLM connections while keeping ownership clear.

  • Sequences
  • Pull protocol
  • Drivers
  • Analysis paths
03

Checking and reuse

Design scoreboards, reset behavior, reusable agents, and protocol verification components that fail predictably.

  • Scoreboards
  • Reset
  • Reusable VIP
  • End-of-test

Curated practice links

Questions to work through

Permanent bank numbers and direct links make it easy to continue in the live question bank.

  1. Q009uvm_object versus uvm_component

    Explain the key UVM and Class roles and construction decisions, assumptions, and checks.

    UVM Components · Easy
  2. Q604Build and connect phases

    Explain the key UVM and Phase lifecycle and ordering decisions, assumptions, and checks.

    UVM Components · Easy
  3. Q543Phase objections

    Explain the key UVM and Objections and drain time decisions, assumptions, and checks.

    UVM Components · Easy
  4. Q595Factory type overrides

    Explain the key UVM and Factory override resolution decisions, assumptions, and checks.

    UVM Components · Easy
  5. Q010Config_db virtual interface distribution

    Explain the key UVM and Configuration scoping and precedence decisions, assumptions, and checks.

    UVM Components · Easy
  6. Q938Sequencer-driver connection

    Explain the key UVM and Pull protocol handshake decisions, assumptions, and checks.

    UVM Components · Easy
  7. Q012Get_next_item and item_done

    Explain the key UVM and Pull protocol handshake decisions, assumptions, and checks.

    UVM Components · Medium
  8. Q1029Analysis port semantics

    Explain the key UVM and Analysis distribution decisions, assumptions, and checks.

    UVM Components · Easy
  9. Q646Out-of-order scoreboard matching

    Explain the key UVM and Checking architecture decisions, assumptions, and checks.

    Reference Models · Hard
  10. Q458Drive a ready/valid interface correctly

    Explain the key UVM and Driver decisions, assumptions, and checks.

    UVM Components · Medium
  11. Q1042Drive a multi-beat ready/valid transaction

    Explain the key UVM and Driver decisions, assumptions, and checks.

    UVM Components · Medium
  12. Q805Build a reset-responsive nonblocking driver

    Explain the key UVM and Driver decisions, assumptions, and checks.

    UVM Components · Hard
  13. Q612Monitor a ready/valid interface

    Explain the key UVM and Monitor decisions, assumptions, and checks.

    UVM Components · Medium
  14. Q919Reassemble interleaved transactions by ID

    Explain the key UVM and Monitor decisions, assumptions, and checks.

    UVM Components · Hard
  15. Q659Match transactions in strict order

    Explain the key UVM and Scoreboard decisions, assumptions, and checks.

    Reference Models · Medium
  16. Q209Cover handshakes and backpressure

    Explain the key UVM and Coverage decisions, assumptions, and checks.

    Functional Coverage · Medium
  17. Q956Start_item and finish_item

    Explain the key UVM and Sequence arbitration and exclusivity decisions, assumptions, and checks.

    UVM Components · Easy
  18. Q185Sequencer locks and grabs

    Explain the key UVM and Sequence arbitration and exclusivity decisions, assumptions, and checks.

    UVM Components · Hard
  19. Q943Virtual sequencers

    Explain the key UVM and Virtual sequence coordination decisions, assumptions, and checks.

    UVM Components · Medium
  20. Q951Sequence response queue depth

    Explain the key UVM and Response queue management decisions, assumptions, and checks.

    UVM Components · Medium
  21. Q674Blocking and nonblocking transaction-level modeling

    Explain the key UVM and TLM interfaces decisions, assumptions, and checks.

    UVM Components · Medium
  22. Q730Transaction-level modeling port, export, and imp roles

    Explain the key UVM and TLM interfaces decisions, assumptions, and checks.

    UVM Components · Medium
  23. Q979Analysis FIFO backpressure

    Explain the key UVM and TLM interfaces decisions, assumptions, and checks.

    UVM Components · Medium
  24. Q638Configuration object ownership

    Explain the key UVM and Integration and end-of-test decisions, assumptions, and checks.

    UVM Components · Medium
  25. Q222Check_phase and final checking

    Explain the key UVM and Integration and end-of-test decisions, assumptions, and checks.

    UVM Components · Medium
  26. Q026End run phase with a forever monitor

    Explain the key UVM and Objections decisions, assumptions, and checks.

    UVM Components · Medium
  27. Q550Configure two reusable agents in one environment

    Explain the key UVM and Agent configuration decisions, assumptions, and checks.

    UVM Components · Medium
  28. Q381Coordinate two sequencers with a virtual sequence

    Explain the key UVM and Virtual sequence decisions, assumptions, and checks.

    UVM Components · Hard
  29. Q700Turn an APB3 agent into reusable verification IP

    Explain the key APB3 and UVM decisions, assumptions, and checks.

    UVM Components · Hard
  30. Q423Connect a UVM monitor to a scoreboard

    Explain the design choices, edge cases, and validation approach.

    UVM · Medium

Continue preparing