Infosys Senior Consultant Interview Questions, Process, and Tips

Headless is a way of separating the frontend and backend of a website. In Drupal, it involves using Drupal as a backend to provide content via APIs.

• Headless Drupal involves using Drupal as a backend to provide content via APIs

• The frontend is built using a separate technology, such as React or Angular

• This allows for greater flexibility and customization in the frontend design

• Examples of headless Drupal sites include the

To pass custom args in a URL through route, use route parameters or query strings.

• For route parameters, define a parameter in the route path and access it in the controller using req.params.

• For query strings, append key-value pairs to the URL and access them in the controller using req.query.

• Example: /users/:id for route parameters or /users?id=123 for query strings.

• Use encodeURIComponent() to encode special characters

Twig is a template engine for PHP that allows developers to write cleaner and more concise code.

• Twig is used to separate the presentation layer from the business logic layer in web applications.

• It provides a syntax that is easy to read and write, making it easier for developers to create templates.

• Twig supports inheritance, macros, and filters, which can be used to create reusable code.

• It also has built-in security fea...read more

Data points are individual pieces of information that make up a larger dataset.

• Data points can be numerical or categorical

• Examples of data points include age, gender, income, and education level

• Data points are used to analyze trends and patterns in data

DB2 abend codes are error codes that occur during execution of DB2 programs.

• ABENDS001 - ABENDS999 are system abend codes

• SQLCODE - SQL error codes

• DSN - DB2 error codes

• Examples: ABENDS013, SQLCODE -805, DSN1101I

• Each code indicates a specific error or problem in the program execution

Deadlock is a situation where two or more processes are unable to proceed because they are waiting for each other to release resources.

• Occurs in a multi-process system

• Processes are blocked and cannot continue

• Each process is waiting for a resource held by another process

• Can be prevented by proper resource allocation and scheduling

• Example: Process A holds resource X and waits for resource Y, while Process B holds resourc

DB2 SQL error code -811 indicates a row or value was not found in the table.

• Occurs when a SELECT or FETCH statement does not return any rows

• May also occur when a value being inserted or updated does not exist in the table

• Can be resolved by checking the SQL statement or verifying the existence of the row or value