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Snowflake SnowPro Advanced: Data Engineer Certification Exam Sample Questions (Q120-Q125):

NEW QUESTION # 120
Data Engineer Loading File named snowdata.tsv in the /datadir directory from his local machine to Snowflake stage and try to prefix the file with a folder named tablestage, please mark the correct command which helps him to load the files data into snowflake internal Table stage?

A. put file://c:datadirsnowdata.tsv @~/tablestage;
B. put file://c:datadirsnowdata.tsv @%tablestage;
C. put file://c:datadirsnowdata.tsv @tablestage;
D. put file:///datadir/snowdata.tsv @%tablestage;

Answer: B

Explanation:
Explanation
Execute PUT to upload (stage) local data files into an internal stage.
@% character combination identifies a table stage.

NEW QUESTION # 121
Which Snowflake feature facilitates access to external API services such as geocoders. data transformation, machine Learning models and other custom code?

A. External functions
B. Java User-Defined Functions (UDFs)
C. Security integration
D. External tables

Answer: A

Explanation:
Explanation
External functions are Snowflake functions that facilitate access to external API services such as geocoders, data transformation, machine learning models and other custom code. External functions allow users to invoke external services from within SQL queries and pass arguments and receive results as JSON values. External functions require creating an API integration object and an external function object in Snowflake, as well as deploying an external service endpoint that can communicate with Snowflake via HTTPS.

NEW QUESTION # 122
A company uses Amazon S3 as a data lake. The company sets up a data warehouse by using a multi-node Amazon Redshift cluster. The company organizes the data files in the data lake based on the data source of each data file.
The company loads all the data files into one table in the Redshift cluster by using a separate COPY command for each data file location. This approach takes a long time to load all the data files into the table. The company must increase the speed of the data ingestion. The company does not want to increase the cost of the process.
Which solution will meet these requirements?

A. Create a manifest file that contains the data file locations. Use a COPY command to load the data into Amazon Redshift.
B. Use an AWS Give job to copy all the data files into one folder. Use a COPY command to load the data into Amazon Redshift.
C. Use a provisioned Amazon EMR cluster to copy all the data files into one folder. Use a COPY command to load the data into Amazon Redshift.
D. Load all the data files in parallel into Amazon Aurora. Run an AWS Glue job to load the data into Amazon Redshift.

Answer: A

Explanation:
https://docs.aws.amazon.com/redshift/latest/dg/c_best-practices-single-copy-command.html
https://docs.aws.amazon.com/redshift/latest/dg/loading-data-files-using-manifest.html

NEW QUESTION # 123
Which is the non-supportable JavaScript UDF data types?

A. String
B. Binary
C. Double
D. Integers

Answer: D

NEW QUESTION # 124
A company stores petabytes of data in thousands of Amazon S3 buckets in the S3 Standard storage class. The data supports analytics workloads that have unpredictable and variable data access patterns.
The company does not access some data for months. However, the company must be able to retrieve all data within milliseconds. The company needs to optimize S3 storage costs.
Which solution will meet these requirements with the LEAST operational overhead?

A. Use S3 Intelligent-Tiering. Use the default access tier.
B. Use S3 Storage Lens standard metrics to determine when to move objects to more cost- optimized storage classes. Create S3 Lifecycle policies for the S3 buckets to move objects to cost-optimized storage classes. Continue to refine the S3 Lifecycle policies in the future to optimize storage costs.
C. Use S3 Storage Lens activity metrics to identify S3 buckets that the company accesses infrequently. Configure S3 Lifecycle rules to move objects from S3 Standard to the S3 Standard- Infrequent Access (S3 Standard-IA) and S3 Glacier storage classes based on the age of the data.
D. Use S3 Intelligent-Tiering. Activate the Deep Archive Access tier.

Answer: A

NEW QUESTION # 125
......

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