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Impelsys Interview Questions and Answers
40 Interview questions
DNS translates domain names to IP addresses, while DHCP assigns IP addresses to devices on a network.
DNS (Domain Name System) resolves human-readable domain names (e.g., www.example.com) to IP addresses (e.g., 192.0.2.1).
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network, reducing manual configuration.
DNS servers maintain a database of domain names and their corre...
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects.
Deep copy creates a new object and also creates copies of nested objects.
Shallow copy is faster and more memory efficient, but changes to nested objects affect both original and copied objects.
Deep copy is slower and consumes ...
ES6 features are modern JavaScript enhancements that improve code readability and efficiency.
Arrow functions for concise syntax: const add = (a, b) => a + b;
Let and const for block-scoped variables: let x = 5; const y = 10;
Template literals for string interpolation: const name = 'John'; console.log(`Hello, ${name}!`);
Destructuring assignment for easily extracting values from arrays or objects: const { firstName...
Subject vs BehaviourSubject in Angular
Subject is a basic observable that emits values to subscribers
BehaviourSubject is a type of Subject that stores the latest value and emits it to new subscribers
BehaviourSubject requires an initial value when created
Wildcard routes in Angular allow for handling unknown routes and redirecting to a default route.
Wildcard route is denoted by '**' in the route configuration.
It is typically used at the end of the route configuration to handle unknown routes.
Example: { path: '**', redirectTo: '/404' }
ForkJoin is an operator in Angular that allows for parallel execution of multiple observables.
ForkJoin combines the values from multiple observables and emits them as an array when all observables complete.
It waits for all observables to complete and then emits the combined result.
Example: forkJoin([observable1, observable2]).subscribe(result => console.log(result));
Handle errors in fetching API calls by implementing error handling mechanisms.
Use try-catch blocks to catch errors during API calls
Implement error handling logic in the catch block to handle different types of errors
Display user-friendly error messages to inform users about the issue
Use HTTP status codes to identify the type of error (e.g. 404 for not found)
Implement retry mechanisms for temporary network issues
Custom pipes in Angular are used to transform data in templates.
Custom pipes are created using the @Pipe decorator in Angular.
To use a custom pipe in HTML, you need to include it in the declarations array of the NgModule.
You can pass parameters to custom pipes in HTML using the pipe symbol (|).
Example: {{ value | customPipe:param1:param2 }}
Third-party services can be managed by integrating them into the MVC framework using libraries or APIs.
Use libraries or APIs provided by the third-party service to interact with it within the MVC framework.
Create service classes or components to encapsulate the logic for interacting with the third-party service.
Utilize dependency injection to inject the third-party service dependencies into the controllers or mode...
PHP provides a variety of pre-defined functions for string manipulation.
strlen() - returns the length of a string
str_replace() - replaces all occurrences of a search string with a replacement string
substr() - returns a part of a string
strtolower() - converts a string to lowercase
strtoupper() - converts a string to uppercase
Impelsys Interview Experiences
28 interviews found
Anonymous
Selected
I appeared for an interview in Dec 2024.
(10 Questions)
- Q1. Explain about ES6 features
- Ans.
ES6 features are modern JavaScript enhancements that improve code readability and efficiency.
Arrow functions for concise syntax: const add = (a, b) => a + b;
Let and const for block-scoped variables: let x = 5; const y = 10;
Template literals for string interpolation: const name = 'John'; console.log(`Hello, ${name}!`);
Destructuring assignment for easily extracting values from arrays or objects: const { firstName, las...
- Q2. Shallow copy vs deep copy
- Ans.
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects.
Deep copy creates a new object and also creates copies of nested objects.
Shallow copy is faster and more memory efficient, but changes to nested objects affect both original and copied objects.
Deep copy is slower and consumes more ...
- Q3. Arrow function vs Regular function
- Ans.
Arrow functions are concise and do not bind their own 'this' value, while regular functions have their own 'this' value and can be used as constructors.
Arrow functions have a more concise syntax compared to regular functions.
Arrow functions do not have their own 'this' value, they inherit it from the parent scope.
Regular functions have their own 'this' value, which can be useful for object-oriented programming and cons...
- Q4. Subject vs BehaviourSubject
- Ans.
Subject vs BehaviourSubject in Angular
Subject is a basic observable that emits values to subscribers
BehaviourSubject is a type of Subject that stores the latest value and emits it to new subscribers
BehaviourSubject requires an initial value when created
- Q5. Angular lifecycle methods
- Q6. Custom pipes and how to use it in html
- Ans.
Custom pipes in Angular are used to transform data in templates.
Custom pipes are created using the @Pipe decorator in Angular.
To use a custom pipe in HTML, you need to include it in the declarations array of the NgModule.
You can pass parameters to custom pipes in HTML using the pipe symbol (|).
Example: {{ value | customPipe:param1:param2 }}
- Q7. What is ng-template, ng-content and ng-container
- Ans.
ng-template, ng-content, and ng-container are Angular structural directives used for template rendering and content projection.
ng-template is used to define a template that can be rendered conditionally or multiple times.
ng-content is used for content projection, allowing the insertion of content from a parent component into a child component.
ng-container is a grouping element that doesn't interfere with styles or layo...
- Q8. Explain ForkJoin and parallel execution
- Ans.
ForkJoin is an operator in Angular that allows for parallel execution of multiple observables.
ForkJoin combines the values from multiple observables and emits them as an array when all observables complete.
It waits for all observables to complete and then emits the combined result.
Example: forkJoin([observable1, observable2]).subscribe(result => console.log(result));
- Q9. Wildcard routes and it's syntax
- Ans.
Wildcard routes in Angular allow for handling unknown routes and redirecting to a default route.
Wildcard route is denoted by '**' in the route configuration.
It is typically used at the end of the route configuration to handle unknown routes.
Example: { path: '**', redirectTo: '/404' }
- Q10. Handle errors in fetching api call
- Ans.
Handle errors in fetching API calls by implementing error handling mechanisms.
Use try-catch blocks to catch errors during API calls
Implement error handling logic in the catch block to handle different types of errors
Display user-friendly error messages to inform users about the issue
Use HTTP status codes to identify the type of error (e.g. 404 for not found)
Implement retry mechanisms for temporary network issues
(2 Questions)
- Q1. Behavioural questions
- Q2. Why should we hire you
- Ans.
I have extensive experience in Angular development, strong problem-solving skills, and a proven track record of delivering high-quality projects on time.
I have X years of experience working with Angular framework
I have successfully completed projects A, B, and C using Angular
I am proficient in problem-solving and troubleshooting issues in Angular applications
Senior Angular Developer Interview Questions asked at other Companies
(2 Questions)
- Q1. What are the Object-Oriented Programming (OOP) concepts implemented in PHP?
- Ans.
PHP supports all major Object-Oriented Programming concepts including classes, objects, inheritance, encapsulation, and polymorphism.
Classes: PHP allows you to define classes using the 'class' keyword.
Objects: You can create objects of a class using the 'new' keyword.
Inheritance: PHP supports inheritance where a class can inherit properties and methods from another class.
Encapsulation: PHP allows you to restrict access...
- Q2. What are the pre-defined functions available for string manipulation in PHP?
- Ans.
PHP provides a variety of pre-defined functions for string manipulation.
strlen() - returns the length of a string
str_replace() - replaces all occurrences of a search string with a replacement string
substr() - returns a part of a string
strtolower() - converts a string to lowercase
strtoupper() - converts a string to uppercase
(1 Question)
- Q1. How do you manage third-party services within the MVC framework?
- Ans.
Third-party services can be managed by integrating them into the MVC framework using libraries or APIs.
Use libraries or APIs provided by the third-party service to interact with it within the MVC framework.
Create service classes or components to encapsulate the logic for interacting with the third-party service.
Utilize dependency injection to inject the third-party service dependencies into the controllers or models.
Ha...
Software Engineer Interview Questions asked at other Companies
(1 Question)
- Q1. JavaScript array basedprogram questions
(1 Question)
- Q1. Angular and JavaScript question
(1 Question)
- Q1. Contribution to project and personal questions
Senior Software Engineer Interview Questions asked at other Companies
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Data structures and algorithms
- Q2. Web development
Software Engineer Interview Questions asked at other Companies
(1 Question)
- Q1. Basic .net questions
Senior Software Engineer Interview Questions asked at other Companies
(1 Question)
- Q1. Describe your role and responsibilities as a pre sales person or a Bid Manager towards the end of your career at your previous organisation where you worked.
- Ans.
As a seasoned Presales Consultant, I led strategic initiatives, collaborated with teams, and drove successful bids to enhance business growth.
Developed tailored proposals by collaborating with technical teams to align solutions with client needs, resulting in a 30% increase in win rates.
Conducted in-depth market analysis to identify trends and opportunities, enabling the team to position our offerings effectively again...
Presales Consultant Interview Questions asked at other Companies
I applied via LinkedIn and was interviewed in Jan 2024. There were 2 interview rounds.
(5 Questions)
- Q1. Share some of the JMeter challenges which you faced.
- Ans.
Some challenges faced in JMeter
Configuring JMeter for distributed testing
Handling dynamic parameters in requests
Analyzing and interpreting test results
Simulating realistic user behavior
Identifying and resolving performance bottlenecks
- Q2. What is the difference between Hits per second and Throughput?
- Ans.
Hits per second measures the number of requests made to a system per second, while throughput measures the amount of data transferred per unit of time.
Hits per second focuses on the number of requests made to a system per second.
Throughput focuses on the amount of data transferred per unit of time.
Hits per second is a measure of the system's capacity to handle requests.
Throughput is a measure of the system's efficiency...
- Q3. Have you worked on Chaos testing?
- Ans.
Yes
Yes, I have experience working on Chaos testing.
Chaos testing involves intentionally injecting failures and faults into a system to test its resilience and stability.
I have designed and executed chaos experiments to simulate real-world scenarios and identify potential weaknesses in the system.
Examples of chaos testing techniques I have used include randomly killing processes, introducing network latency, and inducin...
- Q4. How do you prepare a report and share it with stakeholders?
- Ans.
To prepare a report and share it with stakeholders, follow these steps:
Gather all relevant data and information
Organize the report structure and format
Include an executive summary highlighting key findings
Present the test objectives, methodology, and scope
Provide detailed test results and analysis
Include performance metrics and benchmarks
Highlight any issues or bottlenecks discovered
Offer recommendations for improvemen...
- Q5. What will you do in the test planning phase?
- Ans.
In the test planning phase, a Senior Performance Test Engineer will define the objectives, scope, and approach of the performance testing.
Define the objectives and goals of the performance testing
Identify the scope of the performance testing
Determine the approach and strategy for conducting performance tests
Identify the performance testing tools and technologies to be used
Define the performance testing environment and ...
(3 Questions)
- Q1. Do you have knowledge on Gatling / Neoload?
- Ans.
Yes, I have knowledge on Gatling and Neoload.
I have experience using Gatling and Neoload for performance testing.
I am familiar with the features and functionalities of both tools.
I have used Gatling to simulate high loads and measure system performance.
I have used Neoload to create realistic user scenarios and analyze performance metrics.
I am proficient in scripting and configuring tests using Gatling and Neoload.
- Q2. Any Automation testing experience?
- Ans.
Yes, I have automation testing experience.
I have worked on various automation testing tools such as Selenium, Appium, and JUnit.
I have developed automated test scripts for web applications, mobile applications, and APIs.
I have experience in creating test frameworks and implementing continuous integration and delivery pipelines.
I have used programming languages like Java, Python, and JavaScript for automation testing.
I ...
- Q3. What are the server-side challenges you faced and how do you troubleshoot?
- Ans.
Server-side challenges and troubleshooting techniques for a Senior Performance Test Engineer
Identifying and resolving performance bottlenecks
Optimizing server response time
Handling high traffic and load balancing
Troubleshooting server crashes and errors
Monitoring server resources and performance metrics
Analyzing server logs and error messages
Identifying and resolving database performance issues
Implementing caching mech...
Interview Preparation Tips
Skills evaluated in this interview
Senior Performance Test Engineer Interview Questions asked at other Companies
- Q1. Can you describe your past professional experiences?
- Ans.
Experienced IT Analyst with a strong background in system analysis, troubleshooting, and project management across various industries.
Worked at XYZ Corp as an IT Analyst, improving system efficiency by 30% through process optimization.
Led a team in implementing a new CRM system, resulting in a 25% increase in customer satisfaction scores.
Conducted regular system audits and troubleshooting, reducing downtime by 15% in t...
- Q2. What are DNS and DHCP, and how do they function?
- Ans.
DNS translates domain names to IP addresses, while DHCP assigns IP addresses to devices on a network.
DNS (Domain Name System) resolves human-readable domain names (e.g., www.example.com) to IP addresses (e.g., 192.0.2.1).
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network, reducing manual configuration.
DNS servers maintain a database of domain names and their correspond...
IT Analyst C2 Interview Questions asked at other Companies
(2 Questions)
- Q1. Framework details
- Q2. Testng program java selenium
Senior QA Engineer Interview Questions asked at other Companies
I applied via LinkedIn and was interviewed in Feb 2024. There were 3 interview rounds.
30 mins 30 question with easy problems
10 mins gd easy topic
(1 Question)
- Q1. Tehcnical based questions
Software Developer Interview Questions asked at other Companies
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