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Data Science Free Certification | Data Science Quiz Questions and Answers
Hi everyone, Here is an opportunity fr y’all. The Digital Adda has launched Data Science Certification Quiz & after completing the quiz you get Free Certificate. Get complete details below and apply:
About the Quiz:
Data science is the field of study that combines domain expertise, programming skills, and knowledge of mathematics and statistics to extract meaningful insights from data. Data science practitioners apply machine learning algorithms to numbers, text, images, video, audio, and more to produce artificial intelligence (AI) systems to perform tasks that ordinarily require human intelligence. In turn, these systems generate insights which analysts and business users can translate into tangible business value.
Data science’s lifecycle consists of five distinct stages, each with its own tasks:
- Capture: Data Acquisition, Data Entry, Signal Reception, Data Extraction. This stage involves gathering raw structured and unstructured data.
- Maintain: Data Warehousing, Data Cleansing, Data Staging, Data Processing, Data Architecture. This stage covers taking the raw data and putting it in a form that can be used.
- Process: Data Mining, Clustering/Classification, Data Modeling, Data Summarization. Data scientists take the prepared data and examine its patterns, ranges, and biases to determine how useful it will be in predictive analysis.
- Analyze: Exploratory/Confirmatory, Predictive Analysis, Regression, Text Mining, Qualitative Analysis. Here is the real meat of the lifecycle. This stage involves performing the various analyses on the data.
- Visualize: Data Reporting, Data Visualization, Business Intelligence, Decision Making. In this final step, analysts prepare the analyses in easily readable forms such as charts, graphs, and reports.
Terms and Conditions:
- There are 15 MCQ Questions in this test.
- You need to score atleast 50% to get a certificate.
- A certificate of achievement will be awarded.
Benefits: Get Data Science Certification Certificate from The Digital Adda which you can share in the Certifications section of your LinkedIn profile, on printed resumes, CVs, or other documents.
Here are the Questions and Answers:
Ques 1: Which of the following is the most important language for Data Science?
- Ruby
- Perl
- Python
- Java
Ques 2: Which of the following is one of the key data science skills?
- Statistics
- Machine Learning
- Data Visualization
- All of the mentioned
Ques 3: Who is the father of data science?
- Rasmus Lerdorf
- James Gosling
- Guido Van Rossum
- William S. Cleveland
Ques 4: Data science is the process of diverse set of data through?
- Analysing Data
- Processing Data
- Organizing Data
- All of the above
Ques 5: We write __ in front of mean to let Python know that we want to activate the mean function from the Numpy library.
- ng.
- np.
- py.
- npm.
Ques 6: Why Machine Learning in Data Science?
- For Prediction
- For Cleaning
- For Visualization
- All of the above
Ques 7: Which of the following is not a application for data science?
- Online Price Comparison
- Privacy Checker
- Recommendation Systems
- Image & Speech Recognition
Ques 8: A column is a __ representation of data.
- Vertical
- Top
- Diagonal
- Horizontal
Ques 9: A __ is a structured representation of data.
- Functions
- Database Table
- Data Frame
- Data Prepration
Ques 10: Which of the following is a revision control system?
- Numpy
- Pandas
- Git
- Scipy
Ques 11: Which of the following step is performed by data scientist after acquiring the data?
- Data Replication
- Data Integration
- Data Forecasting
- Data Cleaning
Ques 12: Data can be categorized into __ groups.
- 2
- 3
- 4
- 5
Ques 13: Weighted Average is used in:
- Regression
- Forecasting
- Classification
- All of the above
Ques 14: Which of the following are “Measures of Central Tendency”?
- Mode, Mean, Median
- Mean, Range, Mode
- Mean, Standard Deviation, Range
- Range, Standard Deviation, Variance
Ques 15: Identify the activation function output which is zero centered
- Hyperbolic Tangent
- Sigmoid
- Softmax
- All of the above
