Test 2

What is a consideration when building decision trees?

What provides the means for matching and manipulating text strings in SQL?

What requests resources from a YARN during a MapReduce job?

Which analytical method is considered unsupervised?

What is a distinct property or logistic regression compared with linear regression?

When should you use a students t-test?

Which word completes the statement: Mahout is to Hadoop as Madlib is to....?

Which of the following performs best with categorical data?

What quality must a time series have to apply an ARIMA model?

In a decision tree, how does the algorithm pick the attributes for splitting?

If distributed item-based collaborative filtering is an algorithm, what is the use case category of the algorithm?

Which functionality do regular expressions provide?

Trend, seasonal and cyclical are components of a time series. What is another component?

In which of these examples would Naive Bayes be an appropriate classifier?

When creating a presentation for a technical audience, what is the main objective?

After what stage of the data life cycle would you start testing a model?

What are the two data Categories that represent quantitative data?

Under which circumstance do you need to implement N-fold cross-validation after creating a regression model?

Which word completes the statements: "Excessive emphasis colour is to bar chart as.....?

Which word completes the statement? Unix is Bash as Hadoop is to?

Which data type would text data with erratic formats be?

Which of these is not one of the 3 categories in Mahout Java Code?

Which opinion should not be included in the project sponsor presentation?

A false positive is when....

Rejection of a null hypothesis when this hypothesis is true is known as a:

Which business driver investigates customer churn?

In the Hadoop ecosystem, what is capable of providing real time read and write access to HDFS files?

In a T-test with unknown variance, what values are used to calculate the T-statistic?

Ordinal attributes imply....

Which node(s) take instruction to perform mapping tasks?

Data visualisation is used in the final presentation of an analytics project. When else is this technique used?

Which is a use case for K-means clustering?

In what phase on the data analytics lifecycle would you use tools like SQL?

If R factors are categorical variables, which data classification level are they most closely related?

What is a corpus?

Which word completes the statement? Data-Ink ratio is to data visualisation as...?

Which of the following is classed as a supervised technique?

Which is a type 2 hypothesis error?

In which lifecycle state are test and training data sets created?

Entropy is a measure of....

Which would be considered "Big Data"

A true positive rate indicates?

What of the following formats does unstructured data come in?

Hive is similar to...

Which would tell you how many more times X and Y occur together than expected if they are statistically independent?

What should be subtracted to remove a simple linear trend from a time series?

Before building an ARIMA model, how can you determine if the time series is weakly stationary?

In SQL, what is an aggregate function?

In a decision tree, what is an example of a pure node?

For high-volume data which visualisation would be best to use?

Which job role would leverage deep technical skills for writing queries and support data ingestion?

Which activity is performed in the operationalise phase of the data analytics lifecycle?

Which role can consult and advise the project team on the value of end results and used on a day-to-day basis?

Apriori Property can also be called?

Which process in text analysis can be used to reduce dimensionality?

In NoSQL, what is the documents stores tool used for?

Which word completes the statement: "The intersection of two sets is to inner join as the union of two sets is to.....?

Which word completes the statement? A spreadsheet is to a data island as a centralised database for reporting is to a..?

What R function is used to encode a vector as a category?

What is an assumption of the student's T-test?