Practice Spark SQL MCQ questions with detailed explanations and clear answer validation. These MCQs help you revise core concepts, compare close options, and improve accuracy for interviews, certification exams, and technical screening rounds. Use this updated 2026 set to strengthen fundamentals and confidence.
Q51. Which statement about explain plans is most accurate?
Select an answer to check.
Answer: EXPLAIN to see physical/logical plans.
Here, EXPLAIN to see physical/logical plans. is the right choice. Debug performance. It aligns directly with what the question asks about which statement about explain plans is most accurate. Competing choices sound plausible, but they miss the key condition.
Q52. How is explain plans best characterized?
Select an answer to check.
Answer: EXPLAIN to see physical/logical plans.
In this case, EXPLAIN to see physical/logical plans. is correct. Debug performance. It aligns directly with what the question asks about how is explain plans best characterized. Competing choices sound plausible, but they miss the key condition.
Q53. Which option best describes ANALYZE TABLE?
Select an answer to check.
Answer: Compute statistics for CBO.
The best option here is Compute statistics for CBO.. Helps optimizer choose plans. It aligns directly with what the question asks about which option best describes analyze table. Competing choices sound plausible, but they miss the key condition.
Q54. What is the primary purpose of ANALYZE TABLE?
Select an answer to check.
Answer: Compute statistics for CBO.
For this question, Compute statistics for CBO. is correct. Helps optimizer choose plans. It aligns directly with what the question asks about what is the primary purpose of analyze table. Competing choices sound plausible, but they miss the key condition.
Q55. Which statement about ANALYZE TABLE is most accurate?
Select an answer to check.
Answer: Compute statistics for CBO.
Compute statistics for CBO. is the correct answer here. Helps optimizer choose plans. It aligns directly with what the question asks about which statement about analyze table is most accurate. Competing choices sound plausible, but they miss the key condition.
Q56. How is ANALYZE TABLE best characterized?
Select an answer to check.
Answer: Compute statistics for CBO.
Here, Compute statistics for CBO. is the right choice. Helps optimizer choose plans. This matches the core idea being tested around how is analyze table best characterized. Competing choices sound plausible, but they miss the key condition.
Q57. Which option best describes CBO?
Select an answer to check.
Answer: Cost-based optimizer using stats.
In this case, Cost-based optimizer using stats. is correct. Improves join plans. This matches the core idea being tested around which option best describes cbo. Competing choices sound plausible, but they miss the key condition.
Q58. What is the primary purpose of CBO?
Select an answer to check.
Answer: Cost-based optimizer using stats.
The best option here is Cost-based optimizer using stats.. Improves join plans. This matches the core idea being tested around what is the primary purpose of cbo. Competing choices sound plausible, but they miss the key condition.
Q59. Which statement about CBO is most accurate?
Select an answer to check.
Answer: Cost-based optimizer using stats.
For this question, Cost-based optimizer using stats. is correct. Improves join plans. This matches the core idea being tested around which statement about cbo is most accurate. Competing choices sound plausible, but they miss the key condition.
Q60. How is CBO best characterized?
Select an answer to check.
Answer: Cost-based optimizer using stats.
Cost-based optimizer using stats. is the correct answer here. Improves join plans. This matches the core idea being tested around how is cbo best characterized. Competing choices sound plausible, but they miss the key condition.
Q61. Which option best describes DPP (dynamic partition pruning)?
Select an answer to check.
Answer: Prune partitions using runtime values.
Here, Prune partitions using runtime values. is the right choice. Spark 3 feature. That is exactly the concept behind which option best describes dpp (dynamic partition pruning) in this context. Competing choices sound plausible, but they miss the key condition.
Q62. What is the primary purpose of DPP (dynamic partition pruning)?
Select an answer to check.
Answer: Prune partitions using runtime values.
In this case, Prune partitions using runtime values. is correct. Spark 3 feature. That is exactly the concept behind what is the primary purpose of dpp (dynamic in this context. Competing choices sound plausible, but they miss the key condition.
Q63. Which statement about DPP (dynamic partition pruning) is most accurate?
Select an answer to check.
Answer: Prune partitions using runtime values.
The best option here is Prune partitions using runtime values.. Spark 3 feature. That is exactly the concept behind which statement about dpp (dynamic partition pruning) is in this context. Competing choices sound plausible, but they miss the key condition.
Q64. How is DPP (dynamic partition pruning) best characterized?
Select an answer to check.
Answer: Prune partitions using runtime values.
For this question, Prune partitions using runtime values. is correct. Spark 3 feature. That is exactly the concept behind how is dpp (dynamic partition pruning) best characterized in this context. Competing choices sound plausible, but they miss the key condition.
Q65. Which option best describes AQE in SQL?
Select an answer to check.
Answer: Adaptive Query Execution adjusts plans at runtime.
Adaptive Query Execution adjusts plans at runtime. is the correct answer here. Skew, joins, partitions. That is exactly the concept behind which option best describes aqe in sql in this context. Competing choices sound plausible, but they miss the key condition.
Q66. What is the primary purpose of AQE in SQL?
Select an answer to check.
Answer: Adaptive Query Execution adjusts plans at runtime.
Here, Adaptive Query Execution adjusts plans at runtime. is the right choice. Skew, joins, partitions. It fits the requirement in the prompt about what is the primary purpose of aqe in. Competing choices sound plausible, but they miss the key condition.
Q67. Which statement about AQE in SQL is most accurate?
Select an answer to check.
Answer: Adaptive Query Execution adjusts plans at runtime.
In this case, Adaptive Query Execution adjusts plans at runtime. is correct. Skew, joins, partitions. It fits the requirement in the prompt about which statement about aqe in sql is most. Competing choices sound plausible, but they miss the key condition.
Q68. How is AQE in SQL best characterized?
Select an answer to check.
Answer: Adaptive Query Execution adjusts plans at runtime.
The best option here is Adaptive Query Execution adjusts plans at runtime.. Skew, joins, partitions. It fits the requirement in the prompt about how is aqe in sql best characterized. Competing choices sound plausible, but they miss the key condition.
Q69. Which option best describes UDFs in SQL?
Select an answer to check.
Answer: Register Python/Scala/Java UDFs for SQL use.
For this question, Register Python/Scala/Java UDFs for SQL use. is correct. Be careful with Python UDFs. It fits the requirement in the prompt about which option best describes udfs in sql. Competing choices sound plausible, but they miss the key condition.
Q70. What is the primary purpose of UDFs in SQL?
Select an answer to check.
Answer: Register Python/Scala/Java UDFs for SQL use.
Register Python/Scala/Java UDFs for SQL use. is the correct answer here. Be careful with Python UDFs. It fits the requirement in the prompt about what is the primary purpose of udfs in. Competing choices sound plausible, but they miss the key condition.
Q71. Which statement about UDFs in SQL is most accurate?
Select an answer to check.
Answer: Register Python/Scala/Java UDFs for SQL use.
Here, Register Python/Scala/Java UDFs for SQL use. is the right choice. Be careful with Python UDFs. This is the most accurate statement for which statement about udfs in sql is most. Competing choices sound plausible, but they miss the key condition.
Q72. How is UDFs in SQL best characterized?
Select an answer to check.
Answer: Register Python/Scala/Java UDFs for SQL use.
In this case, Register Python/Scala/Java UDFs for SQL use. is correct. Be careful with Python UDFs. This is the most accurate statement for how is udfs in sql best characterized. Competing choices sound plausible, but they miss the key condition.
Q73. Which option best describes CACHE TABLE?
Select an answer to check.
Answer: Cache a table or query in memory.
The best option here is Cache a table or query in memory.. Useful for reuse. This is the most accurate statement for which option best describes cache table. Competing choices sound plausible, but they miss the key condition.
Q74. What is the primary purpose of CACHE TABLE?
Select an answer to check.
Answer: Cache a table or query in memory.
For this question, Cache a table or query in memory. is correct. Useful for reuse. This is the most accurate statement for what is the primary purpose of cache table. Competing choices sound plausible, but they miss the key condition.
Q75. Which statement about CACHE TABLE is most accurate?
Select an answer to check.
Answer: Cache a table or query in memory.
Cache a table or query in memory. is the correct answer here. Useful for reuse. This is the most accurate statement for which statement about cache table is most accurate. Competing choices sound plausible, but they miss the key condition.
Q76. How is CACHE TABLE best characterized?
Select an answer to check.
Answer: Cache a table or query in memory.
Here, Cache a table or query in memory. is the right choice. Useful for reuse. It aligns directly with what the question asks about how is cache table best characterized. The remaining choices fail because they don’t satisfy the full definition.
Q77. Which option best describes INSERT OVERWRITE?
Select an answer to check.
Answer: Replace contents of partition/table.
In this case, Replace contents of partition/table. is correct. Common in batch ETL. It aligns directly with what the question asks about which option best describes insert overwrite. The remaining choices fail because they don’t satisfy the full definition.
Q78. What is the primary purpose of INSERT OVERWRITE?
Select an answer to check.
Answer: Replace contents of partition/table.
The best option here is Replace contents of partition/table.. Common in batch ETL. It aligns directly with what the question asks about what is the primary purpose of insert overwrite. The remaining choices fail because they don’t satisfy the full definition.
Q79. Which statement about INSERT OVERWRITE is most accurate?
Select an answer to check.
Answer: Replace contents of partition/table.
For this question, Replace contents of partition/table. is correct. Common in batch ETL. It aligns directly with what the question asks about which statement about insert overwrite is most accurate. The remaining choices fail because they don’t satisfy the full definition.
Q80. How is INSERT OVERWRITE best characterized?
Select an answer to check.
Answer: Replace contents of partition/table.
Replace contents of partition/table. is the correct answer here. Common in batch ETL. It aligns directly with what the question asks about how is insert overwrite best characterized. The remaining choices fail because they don’t satisfy the full definition.
Q81. Which option best describes INSERT INTO?
Select an answer to check.
Answer: Append rows to a table.
Here, Append rows to a table. is the right choice. Append semantics. This matches the core idea being tested around which option best describes insert into. The remaining choices fail because they don’t satisfy the full definition.
Q82. What is the primary purpose of INSERT INTO?
Select an answer to check.
Answer: Append rows to a table.
In this case, Append rows to a table. is correct. Append semantics. This matches the core idea being tested around what is the primary purpose of insert into. The remaining choices fail because they don’t satisfy the full definition.
Q83. Which statement about INSERT INTO is most accurate?
Select an answer to check.
Answer: Append rows to a table.
The best option here is Append rows to a table.. Append semantics. This matches the core idea being tested around which statement about insert into is most accurate. The remaining choices fail because they don’t satisfy the full definition.
Q84. How is INSERT INTO best characterized?
Select an answer to check.
Answer: Append rows to a table.
For this question, Append rows to a table. is correct. Append semantics. This matches the core idea being tested around how is insert into best characterized. The remaining choices fail because they don’t satisfy the full definition.
Q85. Which option best describes Delta SQL operations?
Select an answer to check.
Answer: MERGE/UPDATE/DELETE on Delta tables.
MERGE/UPDATE/DELETE on Delta tables. is the correct answer here. Lakehouse SQL. This matches the core idea being tested around which option best describes delta sql operations. The remaining choices fail because they don’t satisfy the full definition.
Q86. What is the primary purpose of Delta SQL operations?
Select an answer to check.
Answer: MERGE/UPDATE/DELETE on Delta tables.
Here, MERGE/UPDATE/DELETE on Delta tables. is the right choice. Lakehouse SQL. That is exactly the concept behind what is the primary purpose of delta sql in this context. The remaining choices fail because they don’t satisfy the full definition.
Q87. Which statement about Delta SQL operations is most accurate?
Select an answer to check.
Answer: MERGE/UPDATE/DELETE on Delta tables.
In this case, MERGE/UPDATE/DELETE on Delta tables. is correct. Lakehouse SQL. That is exactly the concept behind which statement about delta sql operations is most in this context. The remaining choices fail because they don’t satisfy the full definition.
Q88. How is Delta SQL operations best characterized?
Select an answer to check.
Answer: MERGE/UPDATE/DELETE on Delta tables.
The best option here is MERGE/UPDATE/DELETE on Delta tables.. Lakehouse SQL. That is exactly the concept behind how is delta sql operations best characterized in this context. The remaining choices fail because they don’t satisfy the full definition.
Q89. Which option best describes temporary functions?
Select an answer to check.
Answer: Session-scoped function definitions.
For this question, Session-scoped function definitions. is correct. Lifecycle of session. That is exactly the concept behind which option best describes temporary functions in this context. The remaining choices fail because they don’t satisfy the full definition.
Q90. What is the primary purpose of temporary functions?
Select an answer to check.
Answer: Session-scoped function definitions.
Session-scoped function definitions. is the correct answer here. Lifecycle of session. That is exactly the concept behind what is the primary purpose of temporary functions in this context. The remaining choices fail because they don’t satisfy the full definition.
Q91. Which statement about temporary functions is most accurate?
Select an answer to check.
Answer: Session-scoped function definitions.
Here, Session-scoped function definitions. is the right choice. Lifecycle of session. It fits the requirement in the prompt about which statement about temporary functions is most accurate. The remaining choices fail because they don’t satisfy the full definition.
Q92. How is temporary functions best characterized?
Select an answer to check.
Answer: Session-scoped function definitions.
In this case, Session-scoped function definitions. is correct. Lifecycle of session. It fits the requirement in the prompt about how is temporary functions best characterized. The remaining choices fail because they don’t satisfy the full definition.
Q93. Which option best describes hints?
Select an answer to check.
Answer: BROADCAST/SHUFFLE_HASH hints in SQL.
The best option here is BROADCAST/SHUFFLE_HASH hints in SQL.. Influence join strategy. It fits the requirement in the prompt about which option best describes hints. The remaining choices fail because they don’t satisfy the full definition.
Q94. What is the primary purpose of hints?
Select an answer to check.
Answer: BROADCAST/SHUFFLE_HASH hints in SQL.
For this question, BROADCAST/SHUFFLE_HASH hints in SQL. is correct. Influence join strategy. It fits the requirement in the prompt about what is the primary purpose of hints. The remaining choices fail because they don’t satisfy the full definition.
Q95. Which statement about hints is most accurate?
Select an answer to check.
Answer: BROADCAST/SHUFFLE_HASH hints in SQL.
BROADCAST/SHUFFLE_HASH hints in SQL. is the correct answer here. Influence join strategy. It fits the requirement in the prompt about which statement about hints is most accurate. The remaining choices fail because they don’t satisfy the full definition.
Q96. How is hints best characterized?
Select an answer to check.
Answer: BROADCAST/SHUFFLE_HASH hints in SQL.
Here, BROADCAST/SHUFFLE_HASH hints in SQL. is the right choice. Influence join strategy. This is the most accurate statement for how is hints best characterized. The remaining choices fail because they don’t satisfy the full definition.
Q97. Which option best describes describe?
Select an answer to check.
Answer: Show table schema/partitions.
In this case, Show table schema/partitions. is correct. Inspect metadata. This is the most accurate statement for which option best describes describe. The remaining choices fail because they don’t satisfy the full definition.
Q98. What is the primary purpose of describe?
Select an answer to check.
Answer: Show table schema/partitions.
The best option here is Show table schema/partitions.. Inspect metadata. This is the most accurate statement for what is the primary purpose of describe. The remaining choices fail because they don’t satisfy the full definition.
Q99. Which statement about describe is most accurate?
Select an answer to check.
Answer: Show table schema/partitions.
For this question, Show table schema/partitions. is correct. Inspect metadata. This is the most accurate statement for which statement about describe is most accurate. The remaining choices fail because they don’t satisfy the full definition.
Q100. How is describe best characterized?
Select an answer to check.
Answer: Show table schema/partitions.
Show table schema/partitions. is the correct answer here. Inspect metadata. This is the most accurate statement for how is describe best characterized. The remaining choices fail because they don’t satisfy the full definition.