Question 1

Command to Read JSON Data and Options

Accepted Answer

**Spark**: spark.read.json('path') or spark.read.format('json').load('path'). **Options**: schema (explicit StructType for perf), multiLine (pretty-printed), dateFormat, primitivesAsString. **Nested**: Provide schema or from_json. **Streaming**: readStream.schema(schema).json(path)....

Question 2

Daily Data Volume - quantify

Accepted Answer

**Quantify**: Example—500GB raw, 200GB curated daily. Peak 2TB month-end. Include records and bytes. **Source**: Pipeline metrics (Glue, Dataflow). **Why**: Sizes infrastructure; capacity planning; cost....

Question 3

What is Multiline option in JSON?

Accepted Answer

multiline=true: One JSON object can span multiple lines. Default (false): one object per line (NDJSON). Spark: .option('multiline','true').json(path). WHY: Pretty-printed API responses. Caution: Slower; mixed single/multi can fail....

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