IBM InfoSphere BigInsights Technical Mastery v2 Set 1

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IBM InfoSphere BigInsights Technical Mastery v2 Set 1

Which of the following options best describes the differences between a traditional data warehouse environment and a Hadoop environment?

Traditional data warehousing environments are mostly ideal for analyzing structured data from various systems, while a Hadoop environment is well suited to deal with structured, semi-structured, and unstructured data, as well as when a data discovery process is needed. ✘ Hadoop environments are mostly ideal for analyzing structured and semi-structured data from a singlesystem, while traditional data warehousing environment is well suited to deal with unstructured data, as well as when a data discovery process is needed. ✘ Typically, data stored in Hadoop environments is cleaned up before storing in the distributed file-system. ✘ Typically, data stored in data warehousing environments is rarely filtered and pre processed. On theother hand, data injected into Hadoop environments is always pre-processed and filtered. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

What are the "Vs"that characterize IBM Big Data initiative?

Variety, Versions, Velocity, Volatility ✘ Velocity, Volatility, Variety, Veracity ✘ Veracity, Variety, Volume, Velocity ✘ Volume, Volatility, Velocity, Variety ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following options is CORRECT in regards of Text Analytics component?

The Text Analytics component extracts information from unstructured and semi-structured data. By using its components, enterprises can analyze large volumes of text and produce annotated documents that provide valuable insights into unconventionally stored data. ✘ The Text Analytics component only extracts information from structured data stored in a relationaldatabase. ✘ The Text Analytics component is a programming model for processing large data sets, and the name ofan implementation of the model by Google. Text Analytics is typically used to do distributed computing on clusters of computers. ✘ Jaql is the language for developing text analytics extractors in the InfoSphere BigInsights Text Analyticssystem. A Jaql extractor is a program written in Jaql that extracts structured information from unstructured or semi-structured text. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

InfoSphere BigInsights offers the following benefits to your organization, EXCEPT:

It cuts costs by providing an efficient compression algorithm based on row level compression using a dictionary to store repetitive patterns. ✘ It complements your existing infrastructure by extending your data collection and analysis capabilities. ✘ It integrates data from a variety of structured and unstructured sources. ✘ It enables analysis at scale. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

For maximum stability, the recommended number of dedicated hosts in order to implement the high availability configuration for BigInsights (consisting of the HA manager, the NameNode, and the JobTracker) is:

1 ✘ 2 ✘ 3 ✘ 4 ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following options is CORRECT?

InfoSphere BigInsights is based on a branched Hadoop distribution, and therefore backwards compatibility is not guaranteed. ✘ InfoSphere BigInsights is a distributed file system used as base for Hadoop distributions. ✘ InfoSphere BigInsights is based on the non forked core Hadoop distribution, but backwards compatibilitywith the Apache Hadoop project is not guaranteed, therefore applications written for Hadoop might not run on BigInsights. ✘ InfoSphere BigInsights is based on the non forked core Hadoop distribution, and backwardscompatibility with the Apache Hadoop project will always be maintained. Therefore, all applications written for Hadoop will run on BigInsights. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

How is data stored in a Hadoop cluster?

The data is divided into blocks, and copies of these blocks are replicated across multiple servers in the Hadoop cluster. ✘ The data converted into a single block, and the block is stored in just one of the servers in the Hadoopcluster. ✘ The data is divided into blocks, each block is stored in a different server in the Hadoop cluster, but theblocks are not replicated. ✘ The data is converted into a single block, and copies of this block are replicated across multiple serversin the Hadoop cluster. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

What is a major difference between HDFS and GPFS-FPO?

There is no difference, GPFS-FPO is just IBM version of HDFS in BigInsights. ✘ There is no difference, as GPFS-FPO is the new open source standard version for the Hadoop filesystem. ✘ Unlike HDFS, GPFS-FPO is a kernel level, POSIX compliant, and highly available file system thatallows for standard applications to also use the storage area marked for Hadoop use. ✘ Unlike HDFS, GPFS-FPO is a kernel level, POSIX compliant file system that allows for standardapplications to also use the storage area marked for Hadoop use. Like HDFS, GPFS-FPO also has an issue with the meta data name node service which may be a single point of failure. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following compression algorithms is used by InfoSphere BigInsights to provide an additional compression option over the ones that come with the base Hadoop distribution?

gzip. ✘ brzip2. ✘ lza. ✘ lzo. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

Which of the following features is a browser-based analytic tool in the BigInsights web console that uses a spreadsheet metaphor to help you analyze and break down massive amounts of unstructured data into consumable, situation-specific business contexts?

Adaptive MapReduce ✘ BigSheets ✘ Text Analytics ✘ BigIndex. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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