显示标签为“E20-007”的博文。显示所有博文
显示标签为“E20-007”的博文。显示所有博文

2014年3月3日星期一

EMC E20-007 examen pratique questions et réponses

Choisissez le Pass4Test, choisissez le succès de test EMC E20-007. Bonne chance à vous.

Pass4Test a une équipe se composant des experts qui font la recherche particulièrement des exercices et des Q&As pour le test certification EMC E20-007, d'ailleurs ils peuvent vous proposer à propos de choisir l'outil de se former en ligne. Si vous avez envie d'acheter une Q&A de Pass4Test, Pass4Test vous offrira de matériaux plus détailés et plus nouveaux pour vous aider à approcher au maximum le test réel. Assurez-vous de choisir le Pass4Test, vous réussirez 100% le test EMC E20-007.

Les spécialiste profitant leurs expériences et connaissances font sortir les documentations particulière ciblées au test EMC E20-007 pour répondre une grande demande des candidats. Maintenant, la Q&A plus nouvelle, la version plus proche de test EMC E20-007 réel est lancée. C'est possible à réussir 100% avec le produit de EMC E20-007. Si malheureusement, vous ne passez pas le test, votre argent sera tout rendu. Vous pouvez télécharger le démo gratuit en Internet pour examiner la qualité de Q&A. N'hésitez plus d'ajouter le produit au panier, Pass4Test peut vous aider à réussir le rêve.

Pass4Test est un site professionnel qui répondre les demandes de beaucoup clients. Les candidats qui ont déjà passer leurs premiers test Certification IT ont devenus les suivis de Pass4Test. Grâce à la bonne qualité des documentations, Pass4Test peut aider tous candidats à réussir le test EMC E20-007.

L'équipe de Pass4Test se composant des experts dans le domaine IT. Toutes les Q&As sont examinées par nos experts. Les Q&As offertes par Pass4Test sont réputées pour sa grande couverture ( presque 100%) et sa haute précision. Vous pouvez trouver pas mal de sites similaires que Pass4Test, ces sites peut-être peuvent vous offrir aussi les guides d'études ou les services en ligne, mais on doit admettre que Pass4Test peut être la tête de ces nombreux sites. La mise à jour, la grande couverture des questions, la haute précision des réponses nous permettent à augmenter le taux à réussir le test Certification EMC E20-007. Tous les points mentionnés ci-dessus seront une assurance 100% pour votre réussite de test Certification EMC E20-007.

C'est pas facile à passer le test Certification EMC E20-007, choisir une bonne formation est le premier bas de réussir, donc choisir une bonne resource des informations de test EMC E20-007 est l'assurance du succès. Pass4Test est une assurance comme ça. Une fois que vous choisissez le test EMC E20-007, vous allez passer le test EMC E20-007 avec succès, de plus, un an de service en ligne après vendre est gratuit pour vous.

Pass4Test est un seul site de provider le guide d'étude EMC E20-007 de qualité. Peut-être que vous voyiez aussi les Q&A EMC E20-007 dans autres sites, mais vous allez découvrir laquelle est plus complète. En fait, Pass4Test est aussi une resource de Q&A pour les autres site web.

Code d'Examen: E20-007
Nom d'Examen: EMC (Data Science and Big Data Analytics)
Questions et réponses: 165 Q&As

E20-007 Démo gratuit à télécharger: http://www.pass4test.fr/E20-007.html

NO.1 Under which circumstance do you need to implement N-fold cross-validation after creating a
regression model?
A. There is not enough data to create a test set.
B. The data is unformatted.
C. There are missing values in the data.
D. There are categorical variables in the model.
Answer: A

EMC   certification E20-007   E20-007 examen   E20-007

NO.2 Which type of numeric value does a logistic regression model estimate?
A. Probability
B. A p-value
C. Any integer
D. Any real number
Answer: A

EMC   certification E20-007   E20-007 examen   certification E20-007   E20-007 examen

NO.3 When would you use GROUP BY ROLLUP clause in your OLAP query?
A. where all subtotals and grand totals are to be included in the output
B. where only the subtotals are to be included in the output
C. where only the grand totals are to be included in the output
D. where only specific subtotals and grand totals for a combination of variables are to be included in the
output
Answer: A

EMC   E20-007 examen   certification E20-007   certification E20-007   E20-007

NO.4 Which data asset is an example of quasi-structured data.?
A. Webserver log
B. XML data file
C. Database table
D. News article
Answer: A

EMC examen   E20-007   certification E20-007   E20-007   E20-007

NO.5 In which lifecycle stage are test and training data sets created?
A. Model building
B. Model planning
C. Discovery
D. Data preparation
Answer: A

EMC examen   E20-007   E20-007   certification E20-007   E20-007

NO.6 Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .
A. Confusion matrix is to classifier
B. Data scientist is to big data
C. Seasonality is to ARIMA
D. K-means is to Naive Bayes
Answer: A

certification EMC   E20-007   E20-007   E20-007 examen

NO.7 You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
A. Goodness of fit
B. Coefficients
C. Standard error
D. P-value
Answer: A

EMC   E20-007   certification E20-007   E20-007 examen

NO.8 In data visualization, what is used to focus the audience on a key part of a chart?
A. Emphasis colors
B. Detailed text
C. Pastel colors
D. A data table
Answer: A

EMC examen   E20-007 examen   E20-007   certification E20-007

NO.9 When creating a presentation for a technical audience, what is the main objective?
A. Show that you met the project goals
B. Show how you met the project goals
C. Show if the model will meet the SLA
D. Show the technique to be used in the production environment
Answer: B

EMC   certification E20-007   certification E20-007   E20-007

NO.10 Your company has 3 different sales teams. Each team's sales manager has developed incentive offers
to increase the size of each sales transaction. Any sales manager whose incentive program can be
shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives
as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a
demonstrable increase in the average sale amount. Which analytical technique would be appropriate in
this situation?
A. One-way ANOVA
B. Multi-way ANOVA
C. Student's t-test
D. Wilcoxson Rank Sum Test
Answer: A

certification EMC   E20-007   certification E20-007   E20-007 examen   certification E20-007   E20-007

NO.11 What does the R code
z <- f[1:10, ]
do?
A. Assigns the first 10 rows of f to the vector z
B. Assigns the 1st 10 columns of the 1st row of f to z
C. Assigns a sequence of values from 1 to 10 to z
D. Assigns the 1st 10 columns to z
Answer: A

certification EMC   E20-007 examen   E20-007   E20-007

NO.12 You are using the Apriori algorithm to determine the likelihood that a person who owns a home has a
good credit score. You have determined that the confidence for the rules used in the algorithm is > 75%.
You calculate lift = 1.011 for the rule, "People with good credit are homeowners". What can you determine
from the lift calculation?
A. Support for the association is low
B. Leverage of the rules is low
C. The rule is coincidental
D. The rule is true
Answer: C

EMC examen   certification E20-007   E20-007 examen   E20-007   E20-007 examen

NO.13 What is an appropriate data visualization to use in a presentation for an analyst audience?
A. Pie chart
B. Area chart
C. Stacked bar chart
D. ROC curve
Answer: D

EMC examen   E20-007   E20-007   certification E20-007   E20-007   E20-007

NO.14 Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best
to access their data. This colleague has a strong background in data flow languages and programming.
Which query interface would you recommend?
A. Pig
B. Hive
C. Howl
D. HBase
Answer: A

EMC examen   E20-007 examen   E20-007   E20-007   E20-007 examen   certification E20-007

NO.15 What would be considered "Big Data"?
A. An OLAP Cube containing customer demographic information about 100,000,000 customers
B. Daily Log files from a web server that receives 100,000 hits per minute
C. Aggregated statistical data stored in a relational database table
D. Spreadsheets containing monthly sales data for a Global 100 corporation
Answer: B

EMC examen   certification E20-007   E20-007   E20-007

NO.16 In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B

EMC   E20-007 examen   E20-007   E20-007   E20-007

NO.17 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?
A. {bread,milk} => {cheese}
B. {bread} => {milk}
C. {juice} => {soda}
D. {bread} => {cheese}
Answer: D

EMC   certification E20-007   certification E20-007   E20-007   certification E20-007

NO.18 The web analytics team uses Hadoop to process access logs. They now want to correlate this data
with structured user data residing in a production single-instance JDBC database. They collaborate with
the production team to import the data into Hadoop. Which tool should they use?
A. Sqoop
B. Pig
C. Chukwa
D. Scribe
Answer: A

EMC   E20-007   E20-007   E20-007   E20-007   E20-007 examen

NO.19 A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the
Internet. What is the most appropriate model to use? Suppose labeled training data is available.
A. Na ve Bayesian classifier
B. Linear regression
C. Logistic regression
D. K-means clustering
Answer: A

EMC examen   E20-007   certification E20-007

NO.20 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a
confidence at least 50%?
A. {cheese} => {bread}
B. {juice} => {cheese}
C. {milk} => {soda}
D. {soda} => {milk}
Answer: A

EMC examen   E20-007   E20-007   E20-007 examen   certification E20-007

Vous aurez le service de la mise à jour gratuite pendant un an une fois que vous achetez le produit de Pass4Test. Vous pouvez recevoir les notes immédiatement à propos de aucun changement dans le test ou la nouvelle Q&A sortie. Pass4Test permet tous les clients à réussir le test EMC E20-007 à la première fois.

2014年2月17日星期一

E20-007 dernières questions d'examen certification EMC et réponses publiés

Les produits de Pass4Test sont préparés pour le test Certification EMC E20-007, y compris les formations et les informations ciblées au test EMC E20-007. D'ailleurs, la Q&A de Pass4Test qui est impressionnée par la grande couverture des questions et la haute précision des réponses vous permet à réussir le test avec une haute note.

On doit faire un bon choix pour passer le test EMC E20-007. C'est une bonne affaire à choisir la Q&A de Pass4Test comme le guide d'étude, parce que vous allez obtenir la Certification EMC E20-007 en dépensant d'un petit invertissement. D'ailleur, la mise à jour gratuite pendant un an est aussi gratuite pour vous. C'est vraiment un bon choix.

Code d'Examen: E20-007
Nom d'Examen: EMC (Data Science and Big Data Analytics)
Questions et réponses: 165 Q&As

Dans cette société de l'information technologies, c'est bien populaire que l'on prenne la formation en Internet, Pass4Test est l'un des sites d'offrir la formation particulère pour le test EMC E20-007. Pass4Test a une expérience riche pour répondre les demandes des candidats.

Un bon choix de l'outil à se former est le point essentiel à passer le test EMC E20-007, et les documentations à propos de rechercher le test EMC E20-007 est toujours une part plus importante pendant la préparation de test Certification. Les Q&As offertes par les experts de Pass4Test sont presque même que les tests réels. Pass4Test est un site web particulièrement en apportant les facilités aux gens qui veulent passer le test Certification.

E20-007 Démo gratuit à télécharger: http://www.pass4test.fr/E20-007.html

NO.1 A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the
Internet. What is the most appropriate model to use? Suppose labeled training data is available.
A. Na ve Bayesian classifier
B. Linear regression
C. Logistic regression
D. K-means clustering
Answer: A

EMC   E20-007   E20-007

NO.2 In which lifecycle stage are test and training data sets created?
A. Model building
B. Model planning
C. Discovery
D. Data preparation
Answer: A

EMC   E20-007   certification E20-007   certification E20-007

NO.3 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?
A. {bread,milk} => {cheese}
B. {bread} => {milk}
C. {juice} => {soda}
D. {bread} => {cheese}
Answer: D

EMC   certification E20-007   E20-007 examen   E20-007   certification E20-007

NO.4 In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B

EMC examen   E20-007 examen   certification E20-007

NO.5 Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .
A. Confusion matrix is to classifier
B. Data scientist is to big data
C. Seasonality is to ARIMA
D. K-means is to Naive Bayes
Answer: A

certification EMC   E20-007   E20-007   E20-007

NO.6 Your company has 3 different sales teams. Each team's sales manager has developed incentive offers
to increase the size of each sales transaction. Any sales manager whose incentive program can be
shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives
as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a
demonstrable increase in the average sale amount. Which analytical technique would be appropriate in
this situation?
A. One-way ANOVA
B. Multi-way ANOVA
C. Student's t-test
D. Wilcoxson Rank Sum Test
Answer: A

certification EMC   E20-007   certification E20-007

NO.7 What is an appropriate data visualization to use in a presentation for an analyst audience?
A. Pie chart
B. Area chart
C. Stacked bar chart
D. ROC curve
Answer: D

certification EMC   E20-007 examen   E20-007 examen   E20-007

NO.8 When would you use GROUP BY ROLLUP clause in your OLAP query?
A. where all subtotals and grand totals are to be included in the output
B. where only the subtotals are to be included in the output
C. where only the grand totals are to be included in the output
D. where only specific subtotals and grand totals for a combination of variables are to be included in the
output
Answer: A

EMC   E20-007 examen   E20-007 examen   E20-007   certification E20-007

NO.9 Which data asset is an example of quasi-structured data.?
A. Webserver log
B. XML data file
C. Database table
D. News article
Answer: A

certification EMC   E20-007   certification E20-007   E20-007

NO.10 The web analytics team uses Hadoop to process access logs. They now want to correlate this data
with structured user data residing in a production single-instance JDBC database. They collaborate with
the production team to import the data into Hadoop. Which tool should they use?
A. Sqoop
B. Pig
C. Chukwa
D. Scribe
Answer: A

EMC   E20-007   E20-007   E20-007

NO.11 In data visualization, what is used to focus the audience on a key part of a chart?
A. Emphasis colors
B. Detailed text
C. Pastel colors
D. A data table
Answer: A

EMC   E20-007   E20-007

NO.12 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a
confidence at least 50%?
A. {cheese} => {bread}
B. {juice} => {cheese}
C. {milk} => {soda}
D. {soda} => {milk}
Answer: A

EMC   certification E20-007   certification E20-007   E20-007   E20-007 examen   E20-007

NO.13 What does the R code
z <- f[1:10, ]
do?
A. Assigns the first 10 rows of f to the vector z
B. Assigns the 1st 10 columns of the 1st row of f to z
C. Assigns a sequence of values from 1 to 10 to z
D. Assigns the 1st 10 columns to z
Answer: A

EMC examen   E20-007   certification E20-007   certification E20-007

NO.14 You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
A. Goodness of fit
B. Coefficients
C. Standard error
D. P-value
Answer: A

EMC   E20-007   certification E20-007   certification E20-007   E20-007   E20-007

NO.15 What would be considered "Big Data"?
A. An OLAP Cube containing customer demographic information about 100,000,000 customers
B. Daily Log files from a web server that receives 100,000 hits per minute
C. Aggregated statistical data stored in a relational database table
D. Spreadsheets containing monthly sales data for a Global 100 corporation
Answer: B

EMC   E20-007   E20-007   E20-007   E20-007

NO.16 You are using the Apriori algorithm to determine the likelihood that a person who owns a home has a
good credit score. You have determined that the confidence for the rules used in the algorithm is > 75%.
You calculate lift = 1.011 for the rule, "People with good credit are homeowners". What can you determine
from the lift calculation?
A. Support for the association is low
B. Leverage of the rules is low
C. The rule is coincidental
D. The rule is true
Answer: C

certification EMC   E20-007 examen   E20-007   E20-007

NO.17 When creating a presentation for a technical audience, what is the main objective?
A. Show that you met the project goals
B. Show how you met the project goals
C. Show if the model will meet the SLA
D. Show the technique to be used in the production environment
Answer: B

EMC   E20-007 examen   certification E20-007   certification E20-007

NO.18 Which type of numeric value does a logistic regression model estimate?
A. Probability
B. A p-value
C. Any integer
D. Any real number
Answer: A

EMC   E20-007   certification E20-007   E20-007

NO.19 Under which circumstance do you need to implement N-fold cross-validation after creating a
regression model?
A. There is not enough data to create a test set.
B. The data is unformatted.
C. There are missing values in the data.
D. There are categorical variables in the model.
Answer: A

certification EMC   E20-007 examen   E20-007   E20-007

NO.20 Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best
to access their data. This colleague has a strong background in data flow languages and programming.
Which query interface would you recommend?
A. Pig
B. Hive
C. Howl
D. HBase
Answer: A

EMC   E20-007   E20-007   E20-007

Il y a plusieurs de façons pour réussir le test EMC E20-007, vous pouvez travailler dur et dépenser beaucoup d'argents, ou vous pouvez travailler plus efficacement avec moins temps dépensés.

2013年9月24日星期二

Guide de formation plus récente de EMC E20-007

Vous pouvez trouver un meilleur boulot dans l'industrie IT à travers d'obtenir le test EMC E20-007, la voie à la réussite de votre professionnel sera ouverte pour vous.

En quelques années, le test de certification de EMC E20-007 faisait un grand impact sur la vie quotidienne pour pas mal de gens. Voilà le problème, comme on peut réussir facilement le test de EMC E20-007? Notre Pass4Test peut vous aider à tout moment à résourdre ce problème rapidement. Pass4Test peut vous offrir une bonne formation particulière à propos du test de certification E20-007. Notre outil de test formation est apporté par les IT experts. Chez Pass4Test, vous pouvez toujours trouver une formations à propos du test Certification E20-007, plus nouvelle et plus proche d'un test réel. Tu choisis le Pass4Test aujourd'hui, tu choisis le succès de test Certification demain.

Si vous travaillez quand même très dur et dépensez beaucoup de temps pour préparer le test EMC E20-007, mais ne se savez pas du tout c'est où le raccourci pour passer le test certification, Pass4Test peut vous donner une solution efficace. Vous vous sentirez magiquement jouer un effet multiplicateur.

Code d'Examen: E20-007
Nom d'Examen: EMC (Data Science and Big Data Analytics)
Questions et réponses: 165 Q&As

Pass4Test, où vous pouvez trouver les conseils et les documentations de test Certification EMC E20-007, est un siteweb remarquable offrant les données à préparer le test IT. Les documentations partiels et les mis en nouveau sont offerts gratuitement dans le site de Pass4Test. D'ailleurs, nos experts profitent de leurs expériences et leurs efforts à lancer sans arrêts les Q&A plus proches au test réel. Vous allez passer votre examen plus facile.

La population de la Certification EMC E20-007 est très claire dans l'Industrie IT. Pass4Test se contribue à vous aider à réussir le test, de plus, un an de la mise à jour gratuite pendant est gratuite pour vous. Pass4Test sera le catalyseur de la réalisation de votre rêve. Pour le succès demain, Pass4Test est votre von choix. Vous serez le prochain talent de l'Indutrie IT sous l'aide de Pass4Test.

E20-007 Démo gratuit à télécharger: http://www.pass4test.fr/E20-007.html

NO.1 You are using the Apriori algorithm to determine the likelihood that a person who owns a home has a
good credit score. You have determined that the confidence for the rules used in the algorithm is > 75%.
You calculate lift = 1.011 for the rule, "People with good credit are homeowners". What can you determine
from the lift calculation?
A. Support for the association is low
B. Leverage of the rules is low
C. The rule is coincidental
D. The rule is true
Answer: C

certification EMC   E20-007 examen   E20-007   E20-007

NO.2 What does the R code
z <- f[1:10, ]
do?
A. Assigns the first 10 rows of f to the vector z
B. Assigns the 1st 10 columns of the 1st row of f to z
C. Assigns a sequence of values from 1 to 10 to z
D. Assigns the 1st 10 columns to z
Answer: A

EMC   E20-007   E20-007   E20-007   E20-007

NO.3 A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the
Internet. What is the most appropriate model to use? Suppose labeled training data is available.
A. Na ve Bayesian classifier
B. Linear regression
C. Logistic regression
D. K-means clustering
Answer: A

EMC   certification E20-007   certification E20-007   certification E20-007

NO.4 Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .
A. Confusion matrix is to classifier
B. Data scientist is to big data
C. Seasonality is to ARIMA
D. K-means is to Naive Bayes
Answer: A

certification EMC   certification E20-007   certification E20-007

NO.5 Which type of numeric value does a logistic regression model estimate?
A. Probability
B. A p-value
C. Any integer
D. Any real number
Answer: A

certification EMC   E20-007 examen   E20-007 examen

NO.6 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a
confidence at least 50%?
A. {cheese} => {bread}
B. {juice} => {cheese}
C. {milk} => {soda}
D. {soda} => {milk}
Answer: A

certification EMC   E20-007   E20-007   E20-007

NO.7 You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
A. Goodness of fit
B. Coefficients
C. Standard error
D. P-value
Answer: A

EMC examen   E20-007   E20-007   E20-007

NO.8 What is an appropriate data visualization to use in a presentation for an analyst audience?
A. Pie chart
B. Area chart
C. Stacked bar chart
D. ROC curve
Answer: D

EMC   certification E20-007   E20-007   E20-007 examen

NO.9 In data visualization, what is used to focus the audience on a key part of a chart?
A. Emphasis colors
B. Detailed text
C. Pastel colors
D. A data table
Answer: A

EMC   E20-007   certification E20-007   E20-007

NO.10 Which data asset is an example of quasi-structured data.?
A. Webserver log
B. XML data file
C. Database table
D. News article
Answer: A

EMC   E20-007   E20-007 examen   certification E20-007

NO.11 In which lifecycle stage are test and training data sets created?
A. Model building
B. Model planning
C. Discovery
D. Data preparation
Answer: A

EMC examen   E20-007   E20-007   E20-007   E20-007 examen

NO.12 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?
A. {bread,milk} => {cheese}
B. {bread} => {milk}
C. {juice} => {soda}
D. {bread} => {cheese}
Answer: D

EMC   certification E20-007   E20-007 examen   E20-007   certification E20-007   E20-007 examen

NO.13 Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best
to access their data. This colleague has a strong background in data flow languages and programming.
Which query interface would you recommend?
A. Pig
B. Hive
C. Howl
D. HBase
Answer: A

EMC   E20-007   E20-007 examen   E20-007 examen

NO.14 The web analytics team uses Hadoop to process access logs. They now want to correlate this data
with structured user data residing in a production single-instance JDBC database. They collaborate with
the production team to import the data into Hadoop. Which tool should they use?
A. Sqoop
B. Pig
C. Chukwa
D. Scribe
Answer: A

certification EMC   E20-007   E20-007   E20-007   E20-007   E20-007

NO.15 Under which circumstance do you need to implement N-fold cross-validation after creating a
regression model?
A. There is not enough data to create a test set.
B. The data is unformatted.
C. There are missing values in the data.
D. There are categorical variables in the model.
Answer: A

EMC examen   E20-007   E20-007 examen   E20-007   certification E20-007

NO.16 What would be considered "Big Data"?
A. An OLAP Cube containing customer demographic information about 100,000,000 customers
B. Daily Log files from a web server that receives 100,000 hits per minute
C. Aggregated statistical data stored in a relational database table
D. Spreadsheets containing monthly sales data for a Global 100 corporation
Answer: B

EMC examen   E20-007   certification E20-007   E20-007

NO.17 In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B

EMC examen   E20-007 examen   certification E20-007   certification E20-007   E20-007

NO.18 When creating a presentation for a technical audience, what is the main objective?
A. Show that you met the project goals
B. Show how you met the project goals
C. Show if the model will meet the SLA
D. Show the technique to be used in the production environment
Answer: B

certification EMC   E20-007 examen   certification E20-007   E20-007

NO.19 Your company has 3 different sales teams. Each team's sales manager has developed incentive offers
to increase the size of each sales transaction. Any sales manager whose incentive program can be
shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives
as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a
demonstrable increase in the average sale amount. Which analytical technique would be appropriate in
this situation?
A. One-way ANOVA
B. Multi-way ANOVA
C. Student's t-test
D. Wilcoxson Rank Sum Test
Answer: A

EMC   E20-007 examen   E20-007   certification E20-007

NO.20 When would you use GROUP BY ROLLUP clause in your OLAP query?
A. where all subtotals and grand totals are to be included in the output
B. where only the subtotals are to be included in the output
C. where only the grand totals are to be included in the output
D. where only specific subtotals and grand totals for a combination of variables are to be included in the
output
Answer: A

EMC   E20-007   E20-007   E20-007 examen

Participer au test EMC E20-007 est un bon choix, parce que dans l'Industire IT, beaucoup de gens tirent un point de vue que le Certificat EMC E20-007 symbole bien la professionnalité d'un travailleur dans cette industrie.