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Shipco IT Interview Questions and Answers
Ques:- What is API authentication and what are common methods
Right Answer:
API authentication is the process of verifying the identity of a user or application trying to access an API. Common methods include:

1. **API Keys**: Unique keys provided to users to access the API.
2. **Basic Authentication**: Uses a username and password encoded in Base64.
3. **OAuth**: A token-based authentication method that allows users to grant limited access to their resources without sharing credentials.
4. **JWT (JSON Web Tokens)**: A compact, URL-safe means of representing claims to be transferred between two parties, often used for stateless authentication.
5. **HMAC (Hash-based Message Authentication Code)**: Uses a secret key to create a hash of the request, ensuring data integrity and authenticity.
Ques:- What is CORS and how does it affect API development
Right Answer:
CORS, or Cross-Origin Resource Sharing, is a security feature implemented by web browsers that allows or restricts web applications from making requests to a domain different from the one that served the web page. It affects API development by requiring developers to configure their APIs to specify which origins are allowed to access their resources, ensuring that only trusted domains can interact with the API.
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 is the difference between GET, POST, PUT, and DELETE in HTTP
Right Answer:
GET is used to retrieve data from a server, POST is used to send data to a server to create a resource, PUT is used to update an existing resource on the server, and DELETE is used to remove a resource from the server.
Ques:- What are Webhooks and how do they differ from APIs
Right Answer:
Webhooks are user-defined HTTP callbacks that are triggered by specific events in a web application, allowing real-time data transfer. They differ from APIs in that APIs require a request to be made to receive data, while webhooks automatically send data when an event occurs without needing a request.
Ques:- A major auto service chain has enjoyed healthy returns on its 30-store operation for the past 10 years. However, management feels that the chain needs to expand, as the current geographical areas in which they are based have become saturated. For the past couple of years, they have aggressively pursued a growth strategy, opening an additional 15 stores. However, it seems that this approach has had negative returns. For the first time in over a decade, the chain’s profits dropped into the negative zone. You were hired to figure out why.
Right Answer:

The negative returns could be due to several factors: oversaturation in new markets, inadequate market research leading to poor location choices, increased competition, higher operational costs, or a lack of brand recognition in the new areas. Additionally, the rapid expansion may have stretched resources thin, impacting service quality and customer satisfaction. A thorough analysis of each new location's performance, customer feedback, and market conditions is necessary to identify the specific issues.

Ques:- A medical equipment manufacturer in the southeastern US has called you in because it feels its working capital requirements are much higher than those of its competitors. How will you help it solve its problem?
Right Answer:
I would analyze the company's inventory management, accounts receivable, and accounts payable processes to identify inefficiencies. Then, I would recommend strategies to optimize inventory levels, improve collection times on receivables, and negotiate better payment terms with suppliers to reduce working capital requirements. Additionally, I would benchmark these metrics against competitors to identify specific areas for improvement.
Ques:- Explain a time when you did not get along with something higher management wanted to implement. How did you handle that?
Right Answer:
I once disagreed with a new policy from upper management that I felt would negatively impact team morale. I scheduled a meeting with my manager to express my concerns, providing data and examples to support my viewpoint. I suggested alternative solutions that aligned with the company's goals while addressing my concerns. My manager appreciated my input, and we were able to modify the implementation plan to better suit the team's needs.
Ques:- The general manager of a popular ski resort has called on you to help her figure out why her resort has been experiencing declining profits over the past three years. How would you help her?
Right Answer:
I would analyze the resort's financial data, review customer feedback, assess competition, evaluate pricing strategies, examine operational costs, and investigate marketing effectiveness. Then, I would identify key areas for improvement and recommend actionable strategies to enhance customer experience, reduce costs, and increase revenue.
Ques:- Tell us about a time that you had to work on a team that did not get along. What happened? What role did you take? What was the result?
Right Answer:
In a previous project, our team had conflicting ideas about the approach to take. I noticed the tension and decided to facilitate a meeting where everyone could express their views. I encouraged open communication and helped us find common ground. By focusing on our shared goals, we developed a compromise that incorporated elements from each perspective. As a result, we improved our collaboration and successfully completed the project on time.
Ques:- How do I slice up an image in Adobe Photoshop CS4 Extended?
Right Answer:
To slice an image in Adobe Photoshop CS4 Extended, use the Slice Tool from the toolbar. Select the Slice Tool, click and drag to create slices over the image. You can also use the "Slice From Guides" option under the "Slice" menu if you have guides set up. Once done, go to File > Save for Web & Devices, and choose the slices you want to save.
Ques:- What is embedded style? How to link?
Right Answer:
Embedded style refers to CSS styles that are defined within a `<style>` tag in the `<head>` section of an HTML document. To link an embedded style, you simply include the `<style>` tag with your CSS rules inside it, like this:

```html
<head>
<style>
/* CSS rules go here */
body {
background-color: lightblue;
}
</style>
</head>
```
Ques:- What is CSS rule 'ruleset'?
Right Answer:
A CSS ruleset consists of a selector and a declaration block. The selector targets HTML elements, and the declaration block contains one or more property-value pairs that define the styles to be applied to those elements.
Ques:- What is a Style Sheet?
Right Answer:
A Style Sheet is a file or set of rules that defines the presentation and layout of a document written in HTML or XML, using CSS (Cascading Style Sheets) to control elements like colors, fonts, and spacing.
Ques:- What is alternate Style Sheet? How to link?
Right Answer:
An alternate style sheet is a CSS file that provides different styling options for a webpage, allowing users to switch between styles. To link an alternate style sheet in HTML, use the `<link>` tag with the `rel` attribute set to "alternate stylesheet" and specify the `title` attribute for identification. For example:

```html
<link rel="stylesheet" type="text/css" href="style1.css" title="Style 1">
<link rel="alternate stylesheet" type="text/css" href="style2.css" title="Style 2">
```

Users can then select the alternate style through a user interface or browser settings.
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