Interview Questions Answers in Design Patterns, Spring Framework, Digital Marketing, Search Engine Optimization SEO, C++ General, Python, SQL PLSQL

How to handle exceptions in spring mvc framework?

Answer

There are two methods for managing exceptions in Spring MVC:

Exception handler method: The @ExceptionHandler annotation type is used to annotate a method to handle exceptions in this type of exception handling.

XML Configuration: The exception can be mapped by the user using the Simple Mapping Exception Resolver bean in the Spring application file.

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Question { 641 }

What is google pagerank?

Answer

The PageRank PR algorithm is used by Google Search to decide where a page will rank in their search engine results.

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Question { 1172 }

What is off page seo?

Answer

The other side of on-page SEO is off-page SEO which are the factors that are not directly in the control and cannot be regulated. These factors include points such as backlinks which can affect the credibility of your website but are not directly in your control.

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Question { 970 }

What is google my business?

Answer

Including and revising company data
Including images of the company
Engaging with customers

Taking prompt action in response to Google reviews and maintaining company data

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Question { 1214 }

What is encapsulation in c++?

Answer

An object-oriented programming concept called encapsulation unifies functions and data into a single entity. This is a crucial step in the data hiding process that shields data from outside intervention. Classes and access modifiers are used in the implementation of encapsulation.

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Question { 1621 }

What is the standard template library (stl)?

Answer

• STL is a collection of templates for data structures (like vector, list), algorithms, and iterators.

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Question { 1276 }

What is abstraction in c++?

Answer

An object-oriented programming technique called abstraction conceals background details and only shows users the information that is absolutely necessary. Classes and access modifiers are used in its implementation, which aims to simplify programming.

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Question { 1243 }

Which python library is built on top of matplotlib and pandas to ease data plotting?

Answer

To make data visualization easier, the Python package Seaborn was developed on top of matplotlib and pandas. It is a Python data visualization toolkit that offers a high-level interface for creating meaningful statistical graphs.

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Question { 1025 }

What is a pass in python?

Answer

In other words, pass indicates that no operation is being performed; in other words, it is a placeholder in the compound statement where nothing needs to be typed and a blank should remain

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Question { 1901 }

What is the difference between = and == in python?

Answer

While // denotes floor division (result is an integer), / denotes precise division (result is a floating point value). For instance:

5//2 = 2 5/2 = 2.5

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Question { 1901 }

What is the difference between = and == in python?

Answer

- `/` is the true division operator that always returns a float result, even if both operands are integers.
```python
result = 7 / 3 # Returns 2.3333...
```
- `//` is the floor division operator, which returns the largest integer less than or equal to the result.
```python
result = 7 // 3 # Returns 2

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Question { 1732 }

Is python case-sensitive?

Answer

Python does care about case. This indicates that it considers identifiers with different cases—like variable names, function names, etc.—to be separate. In Python, for instance, there are two identifiers: variable and variable.

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Question { 1225 }

What is the difference between 'is' and '==' in python?

Answer

`is` checks if two objects are the same in memory (identity), while `==` checks if two objects have the same value.

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Question { 1567 }

What are operators?

Answer

The unique kinds of symbols called operators are employed to carry out certain operations on variables and values.

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Question { 1660 }

What are the different types of joins in sql?

Answer

• Inner Join: Returns matching rows from both tables.
• Left Join (Left Outer Join): Returns all rows from the left table and matching rows from the right table.
• Right Join (Right Outer Join): Returns all rows from the right table and matching rows from the left table.
• Full Join (Full Outer Join): Returns all rows when there’s a match in one of the tables.
• Cross Join: Returns the Cartesian product of both tables.
• Self Join: A table joins itself.
Example Query:
SELECT e1.name, e2.name AS manager_name
FROM employees e1
JOIN employees e2 ON e1.manager_id = e2.id;

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