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Ques:- What is an API endpoint and how do you define it
Right Answer:
An API endpoint is a specific URL or URI where an API can be accessed by a client to perform operations like retrieving or sending data. It defines the location and method (such as GET, POST) for interacting with the API.
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 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 API documentation and why is it necessary
Right Answer:
API documentation is a technical manual that explains how to use an API, including its endpoints, request and response formats, authentication methods, and examples. It is necessary because it helps developers understand how to integrate and interact with the API effectively, ensuring proper usage and reducing errors.
Ques:- What is a web service and how does it relate to an API
Right Answer:
A web service is a standardized way of allowing different applications to communicate over the internet using protocols like HTTP. It provides a method for applications to exchange data and perform operations. An API (Application Programming Interface) is a set of rules and tools that allows different software applications to interact with each other. A web service is a type of API that specifically uses web protocols to enable this interaction.
Ques:- HOW we can use css
Right Answer:
CSS can be used by linking a stylesheet to an HTML document using the `<link>` tag in the `<head>` section, by embedding styles directly within a `<style>` tag in the `<head>`, or by applying inline styles directly to HTML elements using the `style` attribute.
Ques:- How can I rotate an image?
Right Answer:
To rotate an image in Photoshop, select the image layer, then go to the menu and choose Edit > Transform > Rotate. You can also use the shortcut Ctrl + T (Cmd + T on Mac) to enter Free Transform mode, then move your cursor near a corner until it turns into a curved arrow, and drag to rotate.
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:- Three selectors: h1, .warning and #footer, what they do ?
Right Answer:
The selector `h1` targets all `<h1>` elements, `.warning` targets all elements with the class "warning", and `#footer` targets the element with the ID "footer".
Ques:- What is the Need for CSS ?
Right Answer:
CSS is needed to separate content from presentation, allowing for better design control, improved website performance, easier maintenance, and consistent styling across multiple pages.
Ques:- Looking for a tool whcih can do bulk data insert to various tables in the test database and also that tool which work with DB2, SQLServer and Oracle.
Right Answer:
You can use Apache NiFi or Talend for bulk data insertion into various tables in test databases, as both tools support DB2, SQL Server, and Oracle.
Ques:- What is Infrastructure as Code (IaC) and how does it impact monitoring?
Right Answer:

Infrastructure as Code (IaC) is a practice that allows you to manage and provision IT infrastructure using code and automation tools. It impacts monitoring by enabling consistent and repeatable environments, making it easier to implement monitoring solutions, automate alerts, and ensure that monitoring configurations are version-controlled and easily reproducible across different environments.

Ques:- How do you define thresholds and alerts for monitored systems?
Right Answer:

Thresholds and alerts for monitored systems are defined by identifying key performance indicators (KPIs) and setting specific values that indicate normal and abnormal performance. Thresholds are established based on historical data, industry standards, and business requirements. Alerts are configured to trigger notifications when metrics exceed or fall below these thresholds, allowing for timely responses to potential issues.

Ques:- What is SNMP and how is it used in network monitoring?
Right Answer:

SNMP, or Simple Network Management Protocol, is a protocol used for managing and monitoring network devices. It allows network administrators to collect and organize information about devices such as routers, switches, and servers, and to manage their performance and configuration. SNMP operates by using a manager to request data from agents on the devices, which respond with the requested information, enabling effective network monitoring and management.

Ques:- What is the ELK stack and how is it used in infrastructure monitoring?
Right Answer:

The ELK stack consists of Elasticsearch, Logstash, and Kibana. It is used in infrastructure monitoring to collect, store, analyze, and visualize log data from various sources. Elasticsearch indexes the data, Logstash processes and ingests it, and Kibana provides a user-friendly interface for visualizing and querying the data, helping to identify issues and monitor system performance.

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