Get AWS Certified Big Data Specialty Dumps 2019 Practice Exam Test

QUESTION 1

Which statements are true of sequence numbers in Amazon Kinesis? (choose three)

A. Sequence numbers are assigned by Amazon Kinesis when a data producer calls PutRecords
     operation to add data to an Amazon Kinesis stream
B. A data pipeline is a group of data records in a stream.
C. The longer the time period between PutRecord or PutRecords requests, the larger the sequence
     number becomes.
D. Sequence numbers are assigned by Amazon Kinesis when a data producer calls PutRecord
     operation to add data to an Amazon Kinesis stream

Answer: ACD
Explanation:
Sequence numbers in amazon Kinesis are assigned by Amazon Kinesis when a data producer
calls PutRecord operation to add data to an Amazon Kinesis stream. Sequence numbers are
assigned by Amazon Kinesis when a data producer calls PutRecords operation to add data to an
Amazon Kinesis stream. Sequence numbers for the same partition key generally increase over
time.The longer the time period between PutRecord or PutRecords requests, the larger the
sequence number becomes.
Reference: http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html

QUESTION 2

How are Snowball logs stored?

A. in a JSON file
B. in a SQLite table
C. in a plaintext file
D. in an XML file

Answer: C
Explanation:
When you transfer data between your data center and a Snowball, the Snowball client generates
a plaintext log and saves it to your workstation.
Reference: http://docs.aws.amazon.com/snowball/latest/ug/using-client.html

QUESTION 3

How do you put your data into a Snowball?

A. Mount your data source onto a workstation in your datacenter and then use this workstation to
     transfer data to the Snowball.
B. Connect your data source to the Snowball and then press the "import" button.
C. Mount your data source onto the Snowball and ship it back together with the appliance.
D. Connect the Snowball to your datacenter and then copy the data from your data sources to the
     appliance via FTP.

Answer: A
Explanation:
To put your data into a Snowball, you mount your data source onto a workstation in your
datacenter and then use this workstation to transfer data to the Snowball.
Reference: http://docs.aws.amazon.com/snowball/latest/ug/receive-appliance.html

QUESTION 4

Kinesis Partition keys are unicoded strings with a maximum length of (choose one)

A. 256 bytes
B. 128 bytes
C. 512 bytes
D. 1024 bytes

Answer: A
Explanation:
Kinesis Partition keys are unicoded strings with a maximum length of 256 bytes
Reference: http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html

QUESTION 5

Identify a factor that affects the speed of data transfer in AWS Snowball.

A. Transcoder speed
B. The speed of the AGP card
C. Local network speed
D. The speed of the L3 cache

Answer: C
Explanation:
The Snowball client can be used to estimate the time taken to transfer data. Data transfer speed
is affected by a number of factors including local network speed, file size, and the speed at which
data can be read from local servers.
Reference: https://aws.amazon.com/importexport/faqs/