Free COF-R02 Exam Braindumps (page: 34)

Page 34 of 83

In the query profiler view for a query, which components represent areas that can be used to help optimize query performance? (Select TWO)

  1. Bytes scanned
  2. Bytes sent over the network
  3. Number of partitions scanned
  4. Percentage scanned from cache
  5. External bytes scanned

Answer(s): A,C



A marketing co-worker has requested the ability to change a warehouse size on their medium virtual warehouse called mktg WH.
Which of the following statements will accommodate this request?

  1. ALLOW RESIZE ON WAREHOUSE MKTG WH TO USER MKTG LEAD;
  2. GRANT MODIFY ON WAREHOUSE MKTG WH TO ROLE MARKETING;
  3. GRANT MODIFY ON WAREHOUSE MKTG WH TO USER MKTG LEAD;
  4. GRANT OPERATE ON WAREHOUSE MKTG WH TO ROLE MARKETING;

Answer(s): B



When reviewing a query profile, what is a symptom that a query is too large to fit into the memory?

  1. A single join node uses more than 50% of the query time
  2. Partitions scanned is equal to partitions total
  3. An AggregateOperacor node is present
  4. The query is spilling to remote storage

Answer(s): D



Which stage type can be altered and dropped?

  1. Database stage
  2. External stage
  3. Table stage
  4. User stage

Answer(s): C


Reference:

https://docs.snowflake.com/en/user-guide/data-load-local-file-system-create-stage.html#table-stages



Page 34 of 83



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