10 interview questions and answers on RISC-V Architecture
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Here’s a list of questions and answers about the RISC-V Architecture. This guide can help you prepare for job interviews for RISC-V skill requirements.
List of 10 RISC-V Questions and Answers
Question 1: What is RISC-V?
Answer 1: RISC-V is an open standard Instruction Set Architecture (ISA) based on the RISC principles, freely available for anyone to use and extend.
Question 2: What are the base instruction sets in RISC-V?
Answer 2: RV32I, RV64I, and RV128I are the base sets. They can be extended with optional sets like M (multiply), A (atomic), F (float), D (double float), C (compressed).
Question 3: What makes RISC-V open and extensible?
Answer 3: It is released under a permissive license allowing researchers and companies to modify and implement their own custom extensions.
Question 4: Name two companies using RISC-V.
Answer 4: SiFive and Alibaba’s T-Head are notable users of RISC-V cores in products.
Question 5: How is memory managed in RISC-V?
Answer 5: Through load store architecture and support for page-based virtual memory.
Question 6: What is the role of RISC-V in embedded systems?
Answer 6: Its simplicity and low power make it ideal for microcontrollers and IoT devices.
Question 7: How does RISC-V compare to ARM?
Answer 7: RISC-V is open and free to use, unlike ARM which requires licensing. RISC-V is also more modular.
Question 8: What is a privilege mode in RISC-V?
Answer 8: RISC-V supports three modes: User (U), Supervisor (S), and Machine (M) mode.
Question 9: What is RV64GC?
Answer 9: A common RISC-V configuration including 64-bit base (RV64) with G extension set (IMAFDC).
Question 10: How is RISC-V implemented in hardware?
Answer 10: Through RTL implementations like Rocket-chip (Chisel), PicoRV32, and BOOM.
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