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Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables.
Linear regression is used to predict the value of a dependent variable based on the value of one or more independent variables.
It assumes a linear relationship between the independent and dependent variables.
The goal of linear regression is to find the best-fitting line that repres...
R square measures the proportion of variance explained by the model, while adjusted R square penalizes for adding unnecessary variables.
R square increases as more variables are added, even if they are not significant
Adjusted R square penalizes for adding unnecessary variables by adjusting for the number of predictors
Adjusted R square is always lower than R square
Developed a machine learning model to predict customer churn for a telecommunications company.
Collected and cleaned customer data including demographics, usage patterns, and customer service interactions.
Used classification algorithms such as logistic regression and random forest to build the predictive model.
Evaluated model performance using metrics like accuracy, precision, recall, and ROC curve.
Provided actionable i...
I applied via LinkedIn and was interviewed in Aug 2023. There were 3 interview rounds.
Incident tickets are for immediate issues, while problem tickets are for underlying causes of recurring incidents.
Incident tickets are created for immediate issues that need to be resolved quickly.
Problem tickets are created to address the underlying causes of recurring incidents.
Incident tickets focus on restoring service as quickly as possible.
Problem tickets focus on identifying and resolving the root cause to preve...
Active Directory is a directory service developed by Microsoft for Windows domain networks.
Centralized database for managing network resources
Stores information about users, computers, and other network objects
Allows for authentication, authorization, and configuration management
Supports group policies for controlling user access and settings
I applied via Naukri.com and was interviewed in Oct 2019. There were 3 interview rounds.
I applied via Recruitment Consulltant and was interviewed before May 2021. There were 2 interview rounds.
The end to end implementation cycle of ISMS involves planning, implementation, monitoring, review, and improvement.
Planning involves identifying the scope, objectives, and risks of the ISMS.
Implementation involves designing and implementing controls to mitigate identified risks.
Monitoring involves regular checks to ensure the controls are effective.
Review involves assessing the effectiveness of the ISMS and identifying...
Risk assessment involves identifying, analyzing, and evaluating potential risks to determine the likelihood and impact of those risks.
Identify potential risks
Analyze the likelihood and impact of each risk
Evaluate the risks to determine their priority
Develop a plan to mitigate or manage the risks
Monitor and review the risks regularly
Annex A controls are the information security controls listed in ISO 27001 standard.
Annex A contains 114 controls categorized into 14 sections.
These controls are designed to ensure the confidentiality, integrity, and availability of information.
Examples of controls include access control, asset management, cryptography, incident management, and more.
Organizations must select and implement controls based on their risk a...
I have worked on various types of accounts including retail, corporate, and investment accounts.
Retail accounts - managing individual customer accounts for everyday banking needs
Corporate accounts - handling accounts for businesses and organizations
Investment accounts - overseeing accounts for investments and financial planning
I applied via Referral and was interviewed before May 2023. There was 1 interview round.
Got an assignment to perform in excel about data analysis for churn prediction. Performed in excel. 70% focus was on skills and 30% on analysis.
posted on 29 Jul 2024
I applied via Approached by Company and was interviewed in Jun 2024. There was 1 interview round.
Pivoting columns in SQL involves transforming rows into columns to display data in a different format.
Use the PIVOT keyword in SQL to pivot columns
Specify the columns to pivot on and the values to display in the new columns
Aggregate functions like SUM, AVG, COUNT can be used with PIVOT
Example: SELECT * FROM table_name PIVOT (SUM(value_column) FOR pivot_column IN ('value1', 'value2', 'value3'))
I applied via Naukri.com and was interviewed before Oct 2021. There were 2 interview rounds.
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