Why is "error analysis" an essential component of model evaluation in a data science capstone project?

Which of the following type of data science question is missing in the figure?
Introduction to Data Science mcq question image

A

Correlative

B

Exploratory

C

Relative

D

None of the mentioned

In a data science capstone project, why is it essential to maintain a "model performance dashboard"?

A

Choose the mentor

B

Replace data exploration

C

Monitor model performance over time

D

Add complexity to the project

In a data science capstone project, why is "retraining" or "model maintenance" essential for deployed machine learning models?

A

Choose the mentor

B

Replace data exploration

C

Create more project documentation

D

Adapt to changing data patterns

Which of the following analysis should come in place of question mark in the below figure?
Introduction to Data Science mcq question image

A

Inferential

B

Exploratory

C

Causal

D

None of the mentioned

What is the primary role of "model evaluation" in a data science capstone project?

A

Assessing the model's performance

B

Writing the project proposal

C

Data collection

D

Data preprocessing

You develop an enterprise application, called XYZApplication that includes a Windows Form presentation layer, middle-tier components for business logic and data access, and a Microsoft SQL Server database.
You are in the process of creating a middle-tier component that will execute the data access routines in your application. When data is passed to this component, the component will call several SQL Server stored procedures to perform database updates. All of these procedure calls run under the control of a single transaction.
The code for the middle-tier component will implement the following objects:
SqlConnection cn = new SqlConnection();
SqlTransaction tr;
If two users try to update the same data concurrently, inconsistencies such as phantom reads will occur. You must now add code to your component to specify the highest possible level of protection against such inconsistencies.
Which code segment should you use?

A

tr = cn.BeginTransaction(?ReadCommitted?);

B

tr = cn.BeginTransaction(IsolationLevel.ReadCommitted);

C

tr = cn.BeginTransaction(IsolationLevel.Serializable);

D

tr = cn.BeginTransaction(?Serializable?);

Data Products shown in the below figure is built using which programming language?
Introduction to Data Science mcq question image

A

S

B

Python

C

R

D

Java

Why is it important to establish "data pipelines" or "data integration" in a data science capstone project?

A

Simplify the project report

B

Conduct data exploration

C

Automate data collection and processing

D

Create more project documentation

In a data science capstone project, why is "data security" and "privacy" important, especially for sensitive data?

A

Add complexity to the project

B

Replace data exploration

C

Speed up the project

D

Protect against data breaches and misuse

Why is it important to document the project report in a data science capstone project?

A

To add complexity to the project

B

To impress the advisor

C

To avoid project presentation

D

To provide a clear project summary

Why is "error analysis" an essential component of model evaluation in a data science capstone project?

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