Walmart Interview Questions, Process, and Tips for Experienced

Catalog Analyst role involves managing product data, ensuring accuracy and consistency in catalogs.

• Responsible for creating, updating, and maintaining product catalogs

• Ensuring accuracy and consistency of product data

• Analyzing catalog performance and making recommendations for improvements

• Collaborating with cross-functional teams such as marketing, sales, and product development

• Knowledge of data management systems and t

Five useful Excel shortcuts for efficient data analysis.

• Ctrl + C: Copy selected cells

• Ctrl + V: Paste copied cells

• Ctrl + Z: Undo previous action

• Ctrl + Shift + Arrow Key: Select entire data range in a direction

• Ctrl + Home: Move to cell A1

Pivot table for summarizing data, vlookup for finding values in a table, hlookup for horizontal lookup, xlookup for advanced lookup.

• Pivot table is used to summarize and analyze large datasets.

• VLOOKUP is used to find a value in a table by row.

• HLOOKUP is used to find a value in a table by column.

• XLOOKUP is a more advanced version of VLOOKUP and HLOOKUP, allowing for more flexibility in searching for data.

• Example: Use piv...read more

Cost optimization in Big Query involves optimizing query performance, storage usage, and data transfer costs.

• Utilize partitioned tables to reduce query costs by scanning only relevant partitions

• Use clustering to organize data within partitions and improve query performance

• Optimize queries by using efficient SQL syntax and avoiding unnecessary operations

• Leverage caching to reduce repeated query costs

• Monitor and analyze ...read more

Various ways to ingest data in BigQuery include batch loading, streaming, and using third-party tools.

• Batch loading: Uploading data in bulk using tools like Cloud Storage or Data Transfer Service.

• Streaming: Sending data in real-time using APIs like Dataflow or Pub/Sub.

• Third-party tools: Using tools like Talend or Informatica for data ingestion.