Sungkyunkwan University Interview Questions and Answers

Assigning labels to variables in SAS involves using the LABEL statement in a DATA step.

• Use the LABEL statement in a DATA step to assign labels to variables.

• Specify the variable name followed by the label in quotes.

• Example: LABEL age='Age in years';

To test a link, you can check for its functionality, validity, and accessibility.

• Click on the link to ensure it redirects to the correct page

• Check if the link is broken or leads to a 404 error

• Verify that the link is accessible to all users, including those with disabilities

• Test the link on different browsers and devices to ensure compatibility

Yes, we can automate webpages parallelly using tools like Selenium Grid or TestNG.

• Use Selenium Grid to run tests in parallel on multiple machines or browsers

• Utilize TestNG to execute tests in parallel across different test classes or methods

• Implement parallel testing frameworks like TestNG's parallel attribute or Maven Surefire plugin

Test cases for keyboard functionality

• Test typing letters and numbers

• Test special characters input

• Test keyboard shortcuts

• Test keyboard responsiveness

• Test keyboard layout variations

Data validation involves checking for accuracy, completeness, consistency, and conformity to standards.

• Check for missing values

• Verify data types and formats

• Cross-validate data with external sources

• Identify outliers and anomalies

• Perform statistical tests for consistency

Node.js is a runtime environment while Express.js is a web framework built on top of Node.js.

• Node.js is used for server-side scripting and building scalable network applications.

• Express.js is a lightweight framework that simplifies the process of building web applications and APIs.

• Node.js provides the core functionality while Express.js provides additional features like routing, middleware, and templating.

• Express.js is built on top of Node.js and uses its modules and features...read more