Teach Cloud - Cloud, DevOps, and Python Backend Development Blog

fig.savefig('output.png', dpi=300, bbox_inches='tight') writes a publication-quality raster image and tightens bounding boxes to avoid truncated labels.

#Scientific Python & PyData #Quiz #Interactive

Take Quiz

❓ Quiz Question

Oct 25, 2026

Quiz: What is the role of `np.nan` in numerical NumPy arrays and how should equality with it be checked?

By IEEE 754 standards, NaN never equals NaN . You must always use np.isnan() or pd.isna() for comparison.

#Scientific Python & PyData #Quiz #Interactive

Take Quiz

❓ Quiz Question

Oct 25, 2026

Quiz: Which NumPy universal function method computes the cumulative running sum of an array in-place or along an axis?

np.cumsum(arr) (or np.add.accumulate ) computes the cumulative sum of elements along a given axis.

#Scientific Python & PyData #Quiz #Interactive

Take Quiz

❓ Quiz Question

Oct 25, 2026

Quiz: What is the core architectural principle of a microservice in distributed systems?

… high cohesion , bounded contexts, and independent database ownership per service.

#Microservices & Distributed Systems #Quiz #Interactive

Take Quiz

❓ Quiz Question

Oct 25, 2026

Quiz: What problem does the Transactional Outbox Pattern solve in distributed microservices?

The Outbox Pattern writes the event to a database table within the same ACID transaction as the entity, which a message relay then publishes to the broker.

#Microservices & Distributed Systems #Quiz #Interactive

Take Quiz

❓ Quiz Question

Oct 25, 2026

Quiz: Which virtual pseudo-filesystem exposes live kernel metrics and process information (e.g., cpuinfo, meminfo)?

… filesystem acts as an interface to internal kernel data structures and running process state.

#Linux System Administration #Quiz #Interactive

Take Quiz