Gateway for Preparing Interviews
How will Show all records containing the name “sonia” AND the phone number ‘9876543210’ mysql> SELECT * FROM tablename WHERE name = “sonia” AND phone_number = ‘9876543210’ How to Update database permissions/privilages. mysql> flush privileges; how to Return total number of rows mysql> SELECT COUNT(*) FROM tablename; How to dump one database for backup. # … Read more
How would you build a data pipeline? Data pipelines are the bread and butter of machine learning engineers, who take data science models and find ways to automate and scale them. Make sure you’re familiar with the tools to build data pipelines (such as Apache Airflow) and the platforms where you can host models and … Read more
What method is invoked to cause an object to begin executing as a separate thread? The start() method of the Thread class is invoked to cause an object to begin executing as a separate thread. Why do threads block on I/O? Threads block on I/O (that is enters the waiting state) so that other threads may execute while the … Read more
Explain $rootScope in AngularJS. Every AngularJS application contains a $rootScope, which is the top-most scope created on the DOM element. An application can contain only one $rootScope, which will be shared among all its components. Every other scope is considered as its child scope. It can watch expressions and propagate events. By using the root … Read more
What do you understand by linking function? Explain its type. Link is used for combining the directives with a scope and producing a live view. The link function is used for registering DOM listeners as well as updating the DOM. The linking function is executed as soon as the template is cloned. There are two … Read more
Can you describe the architecture of a medium-to-large scale system that you actually designed or implemented? Can you white board the components of the system you recently worked on? How would you go about designing a JEE shopping cart application? Can you discuss some of the high level architectures you are experienced with There are … Read more
Is it possible to evaluate simple expressions using Node REPL? Yes. You can evaluate simple expressions using Node REPL
What are the benefits of using Template-driven forms in Angular 8? Following are the benefits of using Template-driven forms: You should use Template-driven forms if you want to add a simple form to your application because template-driven forms use two-way data binding to update the data model in the component. By using this, you can … Read more
What are the major challenges faced during API testing? The major challenges faced during the API testing are: Parameter Selection Parameter Combination Call sequencing Output verification and validation A major challenge is providing input values which are very difficult because GUI is not available. What are the limits of API usage? Many APIs have certain … Read more
What is the immediate superclass of Menu MenuItem. What is the purpose of a statement block A statement block is used to organize a sequence of statements as a single statement group. What is a native method? A native method is a method that is implemented in a language other than Java Which containers use … Read more