Linux Foundation RVFA Certification Exam Sample Questions

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Linux Foundation RVFA Sample Questions:

01. Which RISC-V registers are involved in handling exceptions and interrupts?
(Choose all that apply)
a) mepc
b) mtvec
c) sp
d) a0
 
02. Which RISC-V privilege mode runs most of the operating-system kernel code?
a) Debug mode
b) User mode
c) Machine mode
d) Supervisor mode
 
03. In a RISC-V system, which mechanism does a program use to deliberately transition from user mode to supervisor mode?
a) User-level threads
b) Hardware interrupts
c) Machine-level instructions
d) System calls
 
04. What is the role of an interrupt handler in a RISC-V operating system?
a) To set up and switch between separate virtual address spaces
b) To create, schedule, and tear down user-level processes
c) To service asynchronous hardware events
d) To compile source and then execute the machine code
 
05. What is a key benefit of running RISC-V applications on a general-purpose operating system?
a) Reduced memory usage
b) Simplified application development and deployment
c) Faster raw execution speed and higher instruction throughput
d) Broader cross-vendor hardware compatibility for compiled binaries
 
06. What is the primary difference between microcontrollers and application processors in RISC-V-based systems?
a) Microcontrollers run complex multitasking operating systems, while application processors are restricted to simple fixed-function embedded tasks.
b) Microcontrollers integrate memory and I/O on a single chip, while application processors are more powerful and designed for complex operating systems.
c) Microcontrollers are used for high-performance server and desktop computing, while application processors are limited to simple low-power sensor devices.
d) There is no significant difference.
 
07. A key difference between microcontrollers and application processors on RISC-V is:
a) The complexity of their workloads
b) Their ability to manage finances
c) Their role in social media
d) Their use in graphic design
 
08. What does running an application on a general-purpose OS on RISC-V primarily require?
a) Graphic design
b) Enhancing website aesthetics and improving page load speed
c) Software compiled for the RISC-V ABI and compatible with the OS
d) E-commerce management and online payment integration
 
09. In RISC-V, a microcontroller differs from an application processor mainly in terms of:
a) The number of instruction formats they implement
b) Computing power and application scope
c) Website development
d) Social media management
 
10. Which activity is a fundamental aspect of operating-system work in the context of RISC-V?
a) Creating graphic designs
b) Developing responsive, data-driven web applications and services
c) Managing corporate finances
d) Implementing low-level OS functionality in RISC-V assembly

Answers:

Question: 01
Answer: a, b		 Question: 02
Answer: d		 Question: 03
Answer: d		 Question: 04
Answer: c		 Question: 05
Answer: b
Question: 06
Answer: b		 Question: 07
Answer: a		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: d

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