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ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGName of the Teacher: Ms. P. S. PatilClass: BE Subject: Data AnalyticsAY: 2020-21 SEM: IIUNIT-11)What is Big Data?a) Huge amount of datab) Small amount of datac) Huge Filed) Big StorageAns:aExplanation:It is Huge amount of data2)According to analysts, for what can traditional IT systems provide afoundation when they’re integrated with big data technologies like Hadoop?a) Big data management and data miningb) Data warehousing and business intelligencec) Management of Hadoop clustersd) Collecting and storing unstructured dataAns:aExplanation:Big data management and data mining3)What are the main components of Big Data?a)MapReduceb)HDFSc)YARNd)All of theseAns:dExplanation:All of these4)The sources of Big Data area)Stock Exchangeb)Transport Datac) Banking Datad) All of the AboveAns:dExplanation:5)Big Data Characteristics are:a) Structured datab) Semi-structured datac) Quasi-structured datad) All of the aboveAns:dExplanation:6)Bl tends to provide reports, dashboards, and queries on businessPage 1
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGquestions for the current period or in the past.a) Trueb) FalseAns:aExplanation:7)Big data can come in multiple forms, including structured and non-structureddataa) Trueb) FalseAns:aExplanation:8)BI problems tend to require highly structured data organizeda) Rowsb) Columnsc) Accurate Reportingd) All of the AboveAns:dExplanation:9)EDW achieves the objective of reporting and sometimes the creation ofdashboards, perform analysis on unstructured dataa) High-value data is hard to reach and leverageb) Data moves in batches from EDW to local analytical toolsc) Data Science projects will remain isolatedd) All of the AboveAns:dExplanation:10)Drivers of Big Dataa) Medical informationb) Photos and video footage uploaded to the World Wide Webc) data extractsd) Both a and bAns:dExplanation:11)According to analysts, for what can traditional IT systems provide afoundation when they’re integrated with big data technologies like Hadoop?a) Big data management and data miningb) Data warehousing and business intelligencec) Management of Hadoop clustersd) Collecting and storing unstructured dataAns:aExplanation:12)Select from option which is not the phase of data analyticsPage 2
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGa) model planningb) testingc) discoveryd) operationalizeAns:bExplanation:13)Which phase of data analytics require more time to completea) Data preparationb) model buildingc) communicate resultsd) DiscoveryAns:aExplanation:14)What is analytic sandbox?a) Toolb) Separate repositoryc) data cleaningd) Data conditioningAns:bExplanation:15)The person which provides analytic techniques and modeling is called as.a) Data Engineerb) Data scientistc) Business userd) Project managerAns:bExplanation:16)What is task of Project manager?a) analytic modellingb) Provide requirementc) ensure meeting objectivesd) creates DB environmentAns:cPage 3
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGExplanation:17)Identifying Key Stakeholders this task is performed in which phase?a) Data preparationb) model buildingc) Discoveryd) communicate resultsAns:cExplanation:18)ETL process is performed in which phasea) Discoveryb) communicate resultsc) model planningd) Data preparationAns:dExplanation:19)How much data Data science teams prefer for analysis?a) too littleb) averagec) mored) more than averageAns:cExplanation:20)select from option tool which is not used in model planning phasea) Data wranglerb) Rc) SQL Analysis serviced) SAS/ACESSAns:cExplanation:Page 4
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERING21)if reports and dashboards will be impacted and need to change this task isperformed by.a) Project sponsorb) BI Analystc) Data Engineerd) Project managerAns:bExplanation:22)What is need of data analytic lifecycle.a) Data cleaningb) To solve Big data problemsc) Data conditioningd) Data ExplorationAns:bExplanation:23)How many phases are there in data analytic lifecycle?a) 4b) 5c) 6d) 7Ans:c24)The person with technical skills is called as?a) Business userb) Data Engineerc) Data scientistd) Project sponsorAns:b25)What is outcome of Model building phase?a) Analytic resultsb) Quality datac) Datad) Potential resourcesAns:aPage 5
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGPravin S.PatilSubject TeacherPage 6
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGName of the Teacher: Ms. P. S. PatilClass: BE Subject: Data AnalyticsAY: 2020-21 SEM: IIUNIT-1I1)1. A statement made about a population for testing purpose is called?a) Statisticb) Hypothesisc) Level of Significanced) Test-StatisticAns:bExplanation:2)If the assumed hypothesis is tested for rejection considering it to be true iscalled?a) Null Hypothesisb) Statistical Hypothesisc) Simple Hypothesisd) Composite HypothesisAns:aExplanation:3)A statement whose validity is tested on the basis of a sample is called?a) Null Hypothesisb) Statistical Hypothesisc) Simple Hypothesisd) Composite HypothesisAns:bExplanation:4)A hypothesis which defines the population distribution is called?a) Null Hypothesisb) Statistical Hypothesisc) Simple Hypothesisd) Composite HypothesisAns:cExplanation:5)If the null hypothesis is false then which of the following is accepted?a) Null Hypothesisb) Positive Hypothesisc) Negative Hypothesisd) Alternative Hypothesis.Ans:dExplanation:Page 7
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERING6)The rejection probability of Null Hypothesis when it is true is called as?a) Level of Confidenceb) Level of Significancec) Level of Margind) Level of RejectionAns:bExplanation:7)The point where the Null Hypothesis gets rejected is called as?a) Significant Valueb) Rejection Valuec) Acceptance Valued) Critical ValueAns:dExplanation:8)If the Critical region is evenly distributed then the test is referred as?a) Two tailedb) One tailedc) Three tailedd) Zero tailedAns:aExplanation:9)The type of test is defined by which of the following?a) Null Hypothesisb) Simple Hypothesisc) Alternative Hypothesisd) Composite HypothesisAns:cExplanation:10)Which of the following is defined as the rule or formula to test a NullHypothesis?a) Test statisticb) Population statisticc) Variance statisticd) Null statisticAns:aExplanation:11)Type 1 error occurs when?a) We reject H0 if it is Trueb) We reject H0 if it is Falsec) We accept H0 if it is Trued) We accept H0 if it is FalseAns:aExplanation:12)The probability of Type 1 error is referred as?a) 1-αPage 8
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERINGb) βc) αd) 1-βAns:cExplanation:13)Alternative Hypothesis is also called as?a) Composite hypothesisb) Research Hypothesisc) Simple Hypothesisd) Null HypothesisAns:bExplanation:14)Which of the following is required by K-means clustering?a) defined distance metricb) number of clustersc) initial guess as to cluster centroidsd) all of the mentionedAns:dExplanation:15)Point out the wrong statement.a) k-means clustering is a method of vector quantizationb) k-means clustering aims to partition n observations into k clustersc) k-nearest neighbor is same as k-meansd) none of the mentionedAns:cExplanation:16)Hierarchical clustering should be primarily used for exploration.a) Trueb) FalseAns:aExplanation:17)Which of the following function is used for k-means clustering?a) k-meansb) k-meanc) heatmapd) none of the mentionedAns:aExplanation:18)Which of the following clustering requires merging approach?a) Partitionalb) Hierarchicalc) Naive Bayesd) None of the mentionedAns:bExplanation:Page 9
ZEAL EDUCATION SOCIETY’SZEAL COLLEGE OF ENGINEERING AND RESEARCHNARHE │PUNE -41 │ INDIADEPARTMENT OF COMPUTER ENGINEERING19)K-means is not deterministic and it also consists of number of iterations.a) Trueb) FalseAns:a20)Depending on acceptance and rejection of null hypothesis there are 2 types oferror produceda) Type 1b) Type 2c) None of thesed) All of theseAns:d21)The power of a test can be defined as a possibility of …a) Rejecting null hypothesisb) Accepting null hypothesisc) Increasing null hypothesisd) Decreasing null hypothesisAns:a22)For a fixed significance level, a greater sample size is mandatory to discoveraa) Minor difference in meanb) Major difference in meanc) Average difference in meand) None of the aboveAns:a23)ANNOVA tests if any of the population means vary from other populationmeansa) Trueb) FalseAns:a24)Clustering is defined as group of same kind of objects which are gathered byuse ofa) Unsupervised methodb) Supervised methodc) Semi supervised methodd) None of theseAns:a25)Following are the applications of Kmeansa) Image Processingb) Medicalc) Customer Segmentationd) All of the abovePage 10
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