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Code.org Interview Questions and Answers
Ques:- What is rate limiting in APIs and how is it implemented
Right Answer:
Rate limiting in APIs is a technique used to control the number of requests a user can make to an API within a specific time period. It is implemented by setting thresholds (e.g., requests per minute) and using mechanisms like tokens, counters, or IP address tracking to monitor and restrict access when the limit is exceeded.
Ques:- What are the common status codes in HTTP responses
Right Answer:
The common status codes in HTTP responses are:

- **200**: OK
- **201**: Created
- **204**: No Content
- **400**: Bad Request
- **401**: Unauthorized
- **403**: Forbidden
- **404**: Not Found
- **500**: Internal Server Error
- **502**: Bad Gateway
- **503**: Service Unavailable
Ques:- What is JSON and how is it used in APIs
Right Answer:
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. In APIs, JSON is commonly used to format data exchanged between a client and a server, allowing for structured data representation in requests and responses.
Ques:- What are the different types of APIs
Right Answer:
The different types of APIs are:

1. **Open APIs (Public APIs)** - Available to developers and third parties.
2. **Internal APIs (Private APIs)** - Used within an organization.
3. **Partner APIs** - Shared with specific business partners.
4. **Composite APIs** - Combine multiple endpoints into a single call.
5. **Web APIs** - Accessible over the internet using HTTP/HTTPS.
Ques:- What is the difference between REST and SOAP APIs
Right Answer:
REST (Representational State Transfer) is an architectural style that uses standard HTTP methods and is typically more lightweight and easier to use, while SOAP (Simple Object Access Protocol) is a protocol that relies on XML for message format and has strict standards for security and transactions. REST is generally more flexible and faster, while SOAP is more suited for enterprise-level services requiring high security and reliability.
Ques:- What tools or software do you use for Agile project management and why
Right Answer:
I've used tools like Jira, Azure DevOps, and Trello for Agile project management. I choose them based on project needs; Jira for complex workflows and robust reporting, Azure DevOps for integrated development environments, and Trello for simpler, visually-oriented task management.
Ques:- How do you measure success in an Agile project, both in terms of output and team health
Right Answer:
Success in Agile is measured by:

* **Output:** Delivering valuable, working software frequently; achieving the product vision; meeting business goals; customer satisfaction; and predictability (consistent delivery).
* **Team Health:** Team morale; continuous improvement (velocity trends, retrospectives leading to action); collaboration; self-organization; and sustainable pace.
Ques:- Can you describe a time when an Agile project didn’t go as planned and how you handled it
Right Answer:
"In one project, we underestimated the complexity of integrating a new third-party API. This caused us to miss our sprint goal. To address this, we immediately re-estimated the remaining work, broke down the integration into smaller, more manageable tasks, and increased communication with the API vendor. We also temporarily shifted team focus to prioritize the integration, delaying a lower-priority feature for the next sprint. Finally, in the sprint retrospective, we implemented a better vetting process for third-party integrations to avoid similar issues in the future."
Ques:- Can you describe what a sprint backlog is and how it is created
Right Answer:
A sprint backlog is a detailed plan of work for a specific sprint, derived from the product backlog. It's created during sprint planning by the development team, who select items from the product backlog they commit to complete, then break down those items into tasks and estimate the effort required for each.
Ques:- How do you prioritize features or tasks in an Agile sprint
Right Answer:
We prioritize features or tasks in an Agile sprint using a combination of factors like business value, risk, effort/size, dependencies, and urgency. Product Owner usually leads this, using techniques like MoSCoW (Must have, Should have, Could have, Won't have) or story pointing, to ensure the most valuable items are tackled first.
Ques:- Whats is SEO and SEM ?
Right Answer:
SEO (Search Engine Optimization) is the process of optimizing a website to improve its visibility in organic (non-paid) search engine results. SEM (Search Engine Marketing) involves promoting a website through paid advertising on search engines to increase its visibility.
Ques:- Why you chose Digital Marketing job role?
Right Answer:
I chose a Digital Marketing job role because I am passionate about using data and creativity to connect with audiences online, and I enjoy the dynamic nature of the digital landscape that allows for continuous learning and innovation.
Ques:- What is e commerce and how does it work
Right Answer:
E-commerce, or electronic commerce, is the buying and selling of goods and services over the internet. It works by allowing customers to browse products on a website, add items to a virtual shopping cart, and complete transactions using online payment methods. The process involves a web platform, payment gateways, and logistics for delivery.
Ques:- What is the importance of mobile responsiveness in e commerce
Right Answer:
Mobile responsiveness in e-commerce is crucial because it ensures that websites function well on mobile devices, providing a seamless shopping experience. This leads to higher user engagement, increased conversion rates, improved search engine rankings, and better customer satisfaction, as more consumers shop using their smartphones and tablets.
Ques:- What is the role of analytics in e commerce decision making
Right Answer:
Analytics in e-commerce helps businesses understand customer behavior, track sales performance, optimize marketing strategies, improve user experience, and make data-driven decisions to enhance profitability and growth.
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