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0
votes
What is the difference between external table and managed table?
answered
Jan 10, 2020
in
Big Data | Hadoop
#external-vs-manage-table
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
Is it possible to change the default location of a managed table in Hive?
answered
Jan 10, 2020
in
Big Data | Hadoop
#hive-tables
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
When should we use SORT BY instead of ORDER BY in Hive
answered
Jan 10, 2020
in
Big Data | Hadoop
#hive-order-by
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
What is a partition in Hive?
answered
Jan 10, 2020
in
Big Data | Hadoop
#hive-partition
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
Why do we perform partitioning in Hive?
answered
Jan 10, 2020
in
Big Data | Hadoop
#hive-partitioning
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
What is dynamic partitioning and when is it used?
answered
Jan 10, 2020
in
Big Data | Hadoop
#dynamic-partitioning
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
How can you add a new partition for the month December in the above partitioned table?
answered
Jan 10, 2020
in
Big Data | Hadoop
#partitioned-table
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
What is the default maximum dynamic partition that can be created by a mapper/reducer?
answered
Jan 10, 2020
in
Big Data | Hadoop
#hive-mapper
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
Which of the following step / assumption in regression modeling impacts the trade-off between under-fitting and over-fitting the most.
answered
Dec 31, 2019
in
Data Science
#regression-modeling
0
votes
Suppose you have the following data with one real-value input variable & one real-value output variable.
answered
Dec 31, 2019
in
Data Science
#cross-validation
0
votes
Which of the following is/ are true about “Maximum Likelihood estimate (MLE)”?
answered
Dec 31, 2019
in
Data Science
#mle
0
votes
Let’s say, a “Linear regression” model perfectly fits the training data (train error is zero). Now, Which of the following statement is true?
answered
Dec 31, 2019
in
Data Science
#linear-regression
0
votes
In a linear regression problem, we are using “R-squared” to measure goodness-of-fit.
answered
Dec 31, 2019
in
Data Science
#linear-regression
0
votes
Which one of the statement is true regarding residuals in regression analysis?
answered
Dec 31, 2019
in
Data Science
#regression-analysis
0
votes
Which of the one is true about Heteroskedasticity?
answered
Dec 31, 2019
in
Data Science
#heteroskedasticity
0
votes
Which of the following indicates a fairly strong relationship between X and Y?
answered
Dec 31, 2019
in
Data Science
#correlation-coefficient
0
votes
Which of the following assumptions do we make while deriving linear regression parameters?
answered
Dec 31, 2019
in
Data Science
#regression-parameters
0
votes
To test linear relationship of y(dependent) and x(independent) continuous variables, which of the following plot best suited?
answered
Dec 31, 2019
in
Data Science
#continuous-variables
0
votes
Generally, which of the following method(s) is used for predicting continuous dependent variable?
answered
Dec 31, 2019
in
Data Science
#continuous-dependent-variable
0
votes
A correlation between age and health of a person found to be -1.09. On the basis of this you would tell the doctors that:
answered
Dec 31, 2019
in
Data Science
#corelation
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