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Amazon BDS-C00 Exam
AWS Certified Big Data -Speciality (Page 8 )

Updated On: 9-Feb-2026
Page 8 of 100
PDF with 492 Questions

What does the following command accomplish?
snowball cp -n hdfs://localhost:9000/ImportantPhotos/Cats s3://MyBucket/Photos/Cats

  1. It imports data from a HDFS cluster to a Snowball.
  2. It exports data from S3 to a HDFS cluster.
  3. It imports data from S3 to a Snowball.
  4. It exports data from a HDFS cluster to S3.

Answer(s): A

Explanation:

To transfer file data from a Hadoop Distributed File System (HDFS) to a Snowball, you specify the Name node URI as the source schema, which has the hdfs://hostname:port format. For example: snowball cp -n hdfs://localhost:9000/ImportantPhotos/Cats s3://MyBucket/Photos/Cats


Reference:

http://docs.aws.amazon.com/snowball/latest/ug/using-client.html



Which of the statements below are correct for Amazon Kinesis streams? (choose three)

  1. A record is composed of a sequence number and data blob
  2. A record is the unit of data stored in the Amazon Kinesis Stream
  3. A record is composed of a sequence number, partition key, and data blob.
  4. Each record in the stream has a sequenced number that is assigned by Kinesis Streams.

Answer(s): B,C,D

Explanation:

With Amazon Kinesis streams
Each record in the stream has a sequenced number that is assigned by Kinesis Streams. A record is the unit of data stored in the Amazon Kinesis Stream
A record is composed of a sequence number, partition key, and data blob.


Reference:

http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html



Kinesis Streams supports re-sharding which enables you to adjust the number of shards in your stream in order to adapt to changes in the rate of data flow through the stream. Which statements are true about re-sharding?

  1. In a shard split, you divide a single shard into two shards.
  2. In a shard merge, you combine the two shards into a single shard.
  3. You can merge more than two shards in a single operation.
  4. You cannot split a shard in to more than two shards in a single operation.

Answer(s): A,B,D

Explanation:

Kinesis Streams supports re-sharding which enables you to adjust the number of shards in your stream in order to adapt to changes in the rate of data flow through the stream.
In a shard split, you divide a single shard into two shards. In a shard merge, you combine the two shards into a single shard.You cannot split a shard in to more than two shards in a single operation. You cannot merge more than two shards in a single operation.


Reference:

http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html



As the default setting, how long will Amazon Kinesis Streams store records for? (choose one)

  1. 24 hours
  2. 72 hours
  3. 48 Hours
  4. 12 hours

Answer(s): A

Explanation:

By default Amazon Kinesis Streams store records for 24 hours


Reference:

http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html



A Snowball client transfers data to a Snowball appliance using the command, with the root directory identifier in the destination path.

  1. cp; s3://
  2. scp; /usr/sbin/

Answer(s): A

Explanation:

To transfer data to a Snowball appliance using the Snowball client from a command prompt, you run the copy command with two paths specified, the source and the destination: snowball cp [options] [path/to/data/source] s3://[path/to/data/destination]


Reference:

http://docs.aws.amazon.com/snowball/latest/ug/transfer-data.html






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