What is a method of installing a Python package scoped at the notebook level to all nodes in the currently active cluster?

• A.Use &Pip install in a notebook cell
• B.Run source env/bin/activate in a notebook setup script
• C.Install libraries from PyPi using the cluster UI
• D.Use &sh install in a notebook cell

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Each configuration below is identical to the extent that each cluster has 400 GB total of RAM, 160 total cores and only one Executor per VM.
Given a job with at least one wide transformation, which of the following cluster configurations will result in maximum performance?

• A.Total VMs: 1
  400 GB per Executor
  160 Cores / Executor
• B.Total VMs: 8
  50 GB per Executor
  20 Cores / Executor
• C.Total VMs: 4
  100 GB per Executor
  40 Cores/Executor
• D.Total VMs: 2
  200 GB per Executor
  80 Cores / Executor

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A data engineer is performing a join operation to combine values from a static userlookup table with a streaming DataFrame streamingDF.
Which code block attempts to perform an invalid stream-static join?

• A.userLookup.join(streamingDF, ["userid"], how="inner")
• B.streamingDF.join(userLookup, ["user_id"], how="outer")
• C.streamingDF.join(userLookup, ["user_id"], how="left")
• D.streamingDF.join(userLookup, ["userid"], how="inner")
• E.userLookup.join(streamingDF, ["user_id"], how="right")

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The Databricks workspace administrator has configured interactive clusters for each of the data engineering groups. To control costs, clusters are set to terminate after 30 minutes of inactivity.
Each user should be able to execute workloads against their assigned clusters at any time of the day.
Assuming users have been added to a workspace but not granted any permissions, which of the following describes the minimal permissions a user would need to start and attach to an already configured cluster.

• A."Can Manage" privileges on the required cluster
• B.Workspace Admin privileges, cluster creation allowed. "Can Attach To" privileges on the required cluster
• C.Cluster creation allowed. "Can Attach To" privileges on the required cluster
• D."Can Restart" privileges on the required cluster
• E.Cluster creation allowed. "Can Restart" privileges on the required cluster

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A table is registered with the following code:

Both users and orders are Delta Lake tables. Which statement describes the results of querying recent_orders?

• A.All logic will execute at query time and return the result of joining the valid versions of the source tables at the time the query finishes.
• B.All logic will execute when the table is defined and store the result of joining tables to the DBFS; this stored data will be returned when the table is queried.
• C.Results will be computed and cached when the table is defined; these cached results will incrementally update as new records are inserted into source tables.
• D.All logic will execute at query time and return the result of joining the valid versions of the source tables at the time the query began.
• E.The versions of each source table will be stored in the table transaction log; query results will be saved to DBFS with each query.

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