Practice Exam 1B

Practice Exam 1B - Midterm 1 Review

Q1. Spark is written in Scala and runs on the JVM. What does JVM stand for?

Q2. An Intel CPU has 8 cores and an NVIDIA GPU has 3584 cores. Which statement is most accurate?

Q3. What does “GFLOPS” measure?

Q4. What does “volatile” mean when describing RAM?

Q5. Both HDDs and SSDs are “block devices.” What does this mean?

Q6. What is the main advantage of using SSH to connect to a remote machine?

Q7. In a pipeline A | B | C, where does stderr from process B go?

Q8. What does the command A &> output.txt do?

Q9. According to the Unix philosophy, what should each program do?

Q10. What is the difference between a Docker container and a hardware virtual machine?

Q11. Why can’t you run a Windows container on a Linux host?

Q12. What is one major benefit of Dockerfiles for reproducibility?

Q13. IPv4 addresses are how many bytes?

Q14. What does 0.0.0.0 mean when used as a bind address for a server?

Q15. What is the loopback interface (lo)?

Q16. What does serialization mean in the context of gRPC?

Q17. In a URL like https://example.com:443/api/data, what is /api/data?

Q18. In the Docker port forwarding command -p 127.0.0.1:300:80, what does 80 refer to?

Q19. What is the primary purpose of replication in distributed systems?

Q20. What is the main disadvantage of hash partitioning?