Broadcast variables in Apache Spark - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a broadcast variable in Spark.

Apache Spark

broadcastVar = sc.[1](value)

Drag options to blanks, or click blank then click option'

Acollect

Baccumulator

Cparallelize

Dbroadcast

Attempts:

3 left

💡 Hint

Common Mistakes

Using sc.accumulator instead of sc.broadcast

Trying to use sc.collect which is for actions

Using sc.parallelize which creates RDDs

Use sc.broadcast() to create a broadcast variable in Spark.

2fill in blank

medium

Complete the code to access the value of a broadcast variable.

Apache Spark

value = broadcastVar.[1]

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Avalue

Bvalue()

CgetValue()

Dget

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to call a method like getValue()

Using parentheses after value attribute

Access the broadcast variable's data using the .value attribute.

3fill in blank

hard

Fix the error in the code to broadcast a dictionary named 'config'.

Apache Spark

broadcastConfig = sc.[1](config)

Drag options to blanks, or click blank then click option'

Abroadcast

BbroadcastVar

Cbroadcast_variable

DbroadcastVar()

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names like broadcastVar or broadcast_variable

Trying to call broadcastVar as a function

The correct method to broadcast is sc.broadcast(). Other options are invalid method names.

4fill in blank

hard

Fill both blanks to create a broadcast variable and access its value inside a map function.

Apache Spark

broadcastVar = sc.[1](data)
result = rdd.map(lambda x: x + broadcastVar.[2])

Drag options to blanks, or click blank then click option'

Abroadcast

Bvalue

Ccollect

Daccumulator

Attempts:

3 left

💡 Hint

Common Mistakes

Using collect instead of broadcast

Trying to call value as a method

Using accumulator instead of broadcast

Use sc.broadcast() to create the broadcast variable and access its data with .value.

5fill in blank

hard

Fill all three blanks to broadcast a list, use it in a filter, and collect the results.

Apache Spark

broadcastList = sc.[1](myList)
filtered = rdd.filter(lambda x: x in broadcastList.[2])
result = filtered.[3]()

Drag options to blanks, or click blank then click option'

Abroadcast

Bvalue

Ccollect

Dcount

Attempts:

3 left

💡 Hint

Common Mistakes

Using count() instead of collect() to get results

Trying to call value as a method

Using accumulator instead of broadcast

Create a broadcast variable with sc.broadcast(), access its data with .value, and collect the filtered results with .collect().