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Vector consulting Interview Questions and Answers
Ques:- How are memory regions defined and managed in ARM compilation
Right Answer:
Memory regions in ARM compilation are defined and managed using linker scripts or scatter files. These files specify the layout of memory, including the start and end addresses of different sections (like code, data, and stack) and how they should be placed in the available memory. The ARM compiler and linker use this information to organize the program's memory allocation during the build process.
Ques:- How do you use Sightly (HTL) in component development, and what are its advantages over JSP
Right Answer:
Sightly (HTL) is used in AEM component development as a templating language that separates logic from markup, allowing for cleaner and more maintainable code. Its advantages over JSP include:

1. **Security**: HTL automatically escapes output to prevent XSS attacks.
2. **Simplicity**: It has a simpler syntax that is easier to read and write.
3. **Separation of Concerns**: HTL promotes a clear separation between business logic and presentation.
4. **Performance**: HTL is designed for better performance with built-in caching mechanisms.
5. **Less Boilerplate**: It requires less boilerplate code compared to JSP, making development faster.
Ques:- What is the difference between classical reports and interactive reports
Right Answer:
Classical reports display data in a simple list format without user interaction, while interactive reports allow users to drill down into data, filter, and navigate through different levels of detail.
Ques:- What is an ALV report and how do you create one in ABAP
Right Answer:
An ALV (ABAP List Viewer) report is a tool in SAP that allows for the display of data in a structured and interactive format. To create an ALV report in ABAP, follow these steps:

1. Use the function module `REUSE_ALV_GRID_DISPLAY` or `REUSE_ALV_LIST_DISPLAY`.
2. Define the data structure and internal table to hold the data.
3. Populate the internal table with data from the database.
4. Define field catalog for column headers and attributes.
5. Call the ALV function module, passing the internal table and field catalog as parameters.

This will generate an interactive report with sorting, filtering, and layout options.
Ques:- Can you explain how content is stored and retrieved in AEM’s JCR repository
Right Answer:
In AEM, content is stored in the Java Content Repository (JCR) using a hierarchical structure of nodes and properties. Each piece of content is represented as a node, which can have child nodes and properties that store data. To retrieve content, AEM uses the JCR API, allowing developers to query the repository using SQL2 or XPath queries, or by navigating the node structure programmatically.
Ques:- What is your roles& responsibilities?
Right Answer:
My roles and responsibilities include planning and organizing project activities, coordinating team efforts, managing resources and budgets, ensuring timely delivery of project milestones, communicating with stakeholders, and mitigating risks to achieve project goals.
Ques:- Before going to strat the Project what are the things we have to consider?
Right Answer:
1. Define project objectives and goals.
2. Identify stakeholders and their needs.
3. Assess project feasibility and risks.
4. Establish a project scope and deliverables.
5. Create a project timeline and milestones.
6. Determine budget and resources required.
7. Formulate a communication plan.
8. Assemble the project team and assign roles.
Ques:- What does procurement administrator involve?
Right Answer:
A procurement administrator is responsible for managing the purchasing process, which includes sourcing suppliers, negotiating contracts, processing purchase orders, maintaining inventory levels, and ensuring compliance with procurement policies.
Ques:- What are the methods used for project estimation?
Right Answer:
The methods used for project estimation include:

1. Analogous Estimating
2. Parametric Estimating
3. Bottom-Up Estimating
4. Three-Point Estimating
5. Expert Judgment
6. Delphi Technique
7. Function Point Analysis
Ques:- What are fixed type contracts in procurement processes?
Right Answer:
Fixed type contracts, also known as fixed-price contracts, are agreements where the buyer pays a set price for a specified product or service, regardless of the actual costs incurred by the seller. This type of contract provides cost certainty for the buyer and incentivizes the seller to control costs and complete the project efficiently.
Ques:- What is the difference between brd, srs and use of case documents?
Right Answer:
BRD (Business Requirements Document) outlines the high-level business needs and objectives. SRS (Software Requirements Specification) details the functional and non-functional requirements for the software. Use Case documents describe specific interactions between users and the system to achieve particular goals.
Ques:- What is the difference between correlation and causation
Right Answer:
Correlation is a statistical measure that indicates the extent to which two variables fluctuate together, while causation implies that one variable directly affects or causes a change in another variable.
Ques:- What are descriptive and inferential statistics
Right Answer:
Descriptive statistics summarize and describe the main features of a dataset, using measures like mean, median, mode, and standard deviation. Inferential statistics use sample data to make predictions or inferences about a larger population, often employing techniques like hypothesis testing and confidence intervals.
Ques:- What are some common data analysis tools and software
Right Answer:
Some common data analysis tools and software include:

1. Microsoft Excel
2. R
3. Python (with libraries like Pandas and NumPy)
4. SQL
5. Tableau
6. Power BI
7. SAS
8. SPSS
9. Google Analytics
10. Apache Spark
Ques:- What is the difference between supervised and unsupervised learning
Right Answer:
Supervised learning uses labeled data to train models, meaning the output is known, while unsupervised learning uses unlabeled data, where the model tries to find patterns or groupings without predefined outcomes.
Ques:- What is regression analysis and when is it used
Right Answer:
Regression analysis is a statistical method used to examine the relationship between one dependent variable and one or more independent variables. It is used to predict outcomes, identify trends, and understand the strength of relationships in data.
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