Lloyds Technology Centre Softwaretest Engineer Interview Questions and Answers

Policy manager is a software tool used to centrally manage and enforce policies across an organization's systems and applications.

• Policy manager helps define, monitor, and enforce policies related to security, compliance, access control, and other governance aspects.

• It allows administrators to set rules and regulations that govern how data and resources are accessed and used within an organization.

• Policy manager can au...read more

ES6 introduced new features to Javascript including arrow functions, let and const, classes, and template literals.

• Arrow functions provide a concise syntax for writing functions.

• Let and const are block-scoped variables.

• Classes provide a way to create objects with methods and properties.

• Template literals allow for string interpolation and multi-line strings.

• Destructuring allows for easy extraction of values from arrays ...read more

Angular is a front-end framework that uses HTML, CSS, and JavaScript to build dynamic web applications.

• Angular uses components to create reusable UI elements

• It uses services to share data and functionality across components

• It has a powerful template system that allows for easy data binding and manipulation

• Angular uses RxJS for reactive programming and observables

• It has a built-in router for handling navigation between ...read more

Components in Angular are reusable building blocks that encapsulate HTML, CSS, and TypeScript code.

• Components are the basic building blocks of an Angular application

• They are reusable and can be used across multiple pages

• Each component has its own HTML, CSS, and TypeScript code

• Components can communicate with each other using @Input and @Output decorators

• Examples of components include navbar, footer, and login form

To set up the environment for building an Angular application, you need to install Node.js and Angular CLI.

• Install Node.js and npm

• Install Angular CLI using npm

• Create a new Angular project using CLI

• Run the project using ng serve command

CI/CD pipeline is a process of continuous integration and continuous delivery/deployment of software.

• CI/CD pipeline automates the software delivery process.

• It involves continuous integration of code changes, automated testing, and continuous delivery/deployment of software.

• It helps in reducing errors and improving the quality of software.

• Popular CI/CD tools include Jenkins, Travis CI, and CircleCI.

Program to find 2 biggest numbers in array of strings

• Iterate through the array and convert each element to integer

• Keep track of the two biggest numbers found so far

• Return the two biggest numbers at the end

Primary is used to define a primary bean when multiple beans of the same type are present, while Qualifier is used to specify which bean to autowire when multiple beans of the same type are present.

• Primary annotation is used to give a higher preference to a bean when multiple beans of the same type are present in the Spring application context.

• Qualifier annotation is used to specify which bean to autowire when multiple...read more

Fault tolerance in Microservices can be achieved through redundancy, graceful degradation, and circuit breakers.

• Implementing redundancy by having multiple instances of each microservice running to handle failures.

• Using graceful degradation to ensure that the system can still function even if certain microservices are unavailable.

• Utilizing circuit breakers to prevent cascading failures by temporarily stopping requests t

Implementing Spring Security involves configuring security settings in the Spring application.

• Add Spring Security dependency in pom.xml

• Configure security settings in SecurityConfig class

• Define user roles and permissions

• Use annotations like @EnableWebSecurity and @Secured

OAuth 2 is an authorization framework that allows a third-party application to obtain limited access to an HTTP service.

• OAuth 2 is used for delegated access, allowing a user to grant a third-party application access to their resources without sharing their credentials.

• It involves the use of access tokens, which are issued by the authorization server after the user authenticates and authorizes the application.

• OAuth 2 su...read more

Java uses automatic memory management through garbage collection to allocate and deallocate memory.

• Java uses garbage collection to automatically manage memory by deallocating objects that are no longer needed.

• The JVM has a heap where objects are allocated and garbage collection is performed to reclaim memory.

• Java provides the 'finalize()' method for objects to perform cleanup before they are garbage collected.

• Memory le...read more

Different types of garbage collection algorithms in software development.

• Mark and Sweep: Identifies and removes unreachable objects.

• Generational: Divides objects into different generations based on age.

• Parallel: Uses multiple threads to perform garbage collection concurrently.

• Incremental: Spreads garbage collection work over multiple cycles to reduce pause times.

Executors are a class that provides factory and utility methods for Executor, ExecutorService is an interface that represents an asynchronous execution service.

• Executors class provides factory and utility methods for Executor interface

• ExecutorService is an interface that represents an asynchronous execution service

• ExecutorService extends Executor interface

• ExecutorService provides methods to manage termination and produ...read more