Updated AWS Certified Big Data - Specialty Practice Test Questions

QUESTION 6

How can AWS Snowball handle petabyte-scale data migration?

A. Data is sent via a shipping container, pulled by a semi-trailer truck.
B. Data is sent compressed via a high speed network connection.
C. Data is sent via a physical appliance sent to you by AWS.
D. Data is sent encoded (forward error correction) via a high speed network connection.

Answer: C
Explanation:
Snowball uses secure appliances to transfer large amounts of data into and out of the AWS cloud; this is fast and cheaper than high-speed Internet.
Reference: https://aws.amazon.com/snowball/

QUESTION 7

The maximum size of a Kinesis data blob, the data payload before Base64 encoding is?

A. Five megabytes
B. Two megabytes
C. One kilobyte
D. One megabyte

Answer: D
Explanation:
The maximum size of a Kinesis data blob, the data payload before Base64 encoding is one megabtye
Reference: http://docs.aws.amazon.com/streams/latest/dev/working-with-kinesis.html


QUESTION 8

The Snowball client uses a(n) ____ to define what kind of data is transferred between the client's data center and a Snowball.

A. schema
B. JSON configuration file
C. interface
D. XML configuration file

Answer: A
Explanation:
The Snowball client uses schemas to define what kind of data is transferred between the client's data center and a Snowball. The schemas are declared when a command is issued.
Reference: http://docs.aws.amazon.com/snowball/latest/ug/using-client.html

QUESTION 9

An AWS Snowball appliance includes a(n) ____ network connection to minimize data transfer times.

A. 10GBaseT
B. 1000BaseT
C. 40GBaseT
D. Infiniband

Answer: A
Explanation:
An AWS Snowball appliance has a 10GBaseT network connection (both RJ45 as well as SFP+ with either a fiber or copper interface) to minimize data transfer times. This allows the Snowball appliance to transfer up to 80 terabytes of data from a data source to the appliance in about a day, plus shipping time.
Reference: https://aws.amazon.com/snowball/details/

QUESTION 10

The job management API for AWS Snowball is a network protocol based on HTTP that uses a(n) ____ model.

A. RPC
B. MPI
C. publish/subscribe
D. RMI

Answer: A
Explanation:
The job management API for AWS Snowball is a network protocol based on HTTP. It uses JSON (RFC 4627) documents for HTTP request/response bodies and is an RPC model, in which there is a fixed set of operations, and the syntax for each operation is known to clients without any prior interaction.
Reference: http://docs.aws.amazon.com/snowball/latest/api-reference/api-reference.html