Abhi Nallana

I’m going to transition my mentee to a 100% POSTMAN expert within 3 sessions. Here's how: 𝐓𝐚𝐛𝐥𝐞 𝐨𝐟 𝐂𝐨𝐧𝐭𝐞𝐧𝐭𝐬: 1. Authorization Methods 2. Status Code Mock APIs/Mock Server 3. Environment Variables 4. Postman Runner 5. Postman Monitor 6. API Network (Basic) 7. Postman CLI 8. Jenkins Integration 9. Practice Performance Testing 10. Postman Monitors 11. POSTMAN Integration with Github (Backup collections ) 12. POSTMAN SCM ( Fork and Pull Request ) 13. How to contribute to Open source collections. All the above-mentioned points are covered in sessions. 𝐏𝐫𝐞-𝐫𝐞𝐪𝐮𝐢𝐬𝐢𝐭𝐞: 🕎 Basic Javascript understanding 🕎 Install POSTMAN tool 🕎 Install Jenkins 🕎 Create Github Account. Follow Guneet Singh for more automation facts. P.S. If you want to learn Postman Automation then book a slot with me. https://lnkd.in/gjahrAP8 LinkedIn News India LinkedIn Guide to Networking #guneetsingh #automation #qualityassurance

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✅$terraform apply -target =certified 🚀Init ➡ Plan ➡ Apply ➡ HashiCorp Terraform Certified Associate ✅ Why Terraform? After spending quite some time working with Terraform, I decided it was time to get the Terraform Associate Certification by HashiCorp 💡 But what's it all about? Infrastructure as Code (IaC): Writing and managing infrastructure as code means fewer surprises and more control. Cloud-Agnostic Flexibility: Whether it's AWS, Azure, or GCP, Terraform has got you covered, making it easier to manage resources across different platforms. Version Control: Just like your code, you can version and track your infrastructure. Automation Power: Terraform automates infrastructure management, saving time and reducing errors. Seamless Collaboration: With a single source of truth for infrastructure, teams can collaborate more effectively and avoid costly misconfigurations. #Terraform #cloud #IAC #Prometeia

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Hello, Connections In today's blog post, I am going to share with you a step-by-step process of how you can do "Jenkins Installation and Configuration on Amazon Linux" 🚀 Are you an aspiring DevOps engineer or a software developer looking to streamline your CI/CD pipeline? Look no further! Get ready to unlock the power of Jenkins and transform your development workflow! 🔧 We'll cover: 1. Setting up the Amazon Linux Environment 🐧 2. Updating the package manager and installing necessary dependencies 3. Jenkins Installation 🛠️ 4. Adding the Jenkins repository 5. Installing the latest version of Jenkins 6. Jenkins Configuration 🔧 7. Accessing the Jenkins web interface 8. Configuring the Jenkins environment Automating your build, test, and deployment processes By the end of this post, you'll be equipped with the knowledge and skills to set up a robust Jenkins environment on Amazon Linux, streamlining your software development lifecycle. 🎉 #Jenkins #Installation #Configuration #AmazonLinux #DevOps #ContinuousIntegration #Automation #SoftwareDevelopment #CloudComputing #AWS #Linux #ITInfrastructure #Deployment #CI/CD #CodePipeline #CodeBuild #JenkinsInstallation #DevOps #ContinuousIntegration #Automation #SoftwareDevelopment #CI/CD #BuildAutomation #Deployment #CodePipeline #DevOpsTools #InfrastructureAsCode

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YESTERDAY'S INTERVIEW QUESTIONS OF ONE THE PRESTIGIOUS MNC ORGANISATION (AWS DEVOPS ENGINEER - SENIOR ANALYST) **AWS_INTERVIEW_QUESTIONS 1- ALB vs NLB vs GLB. 2- Elastic Beanstalk. 3- How you decide which ec2 instance needs to be used for particular application. 4- How would you troubleshoot an ec2 instance whose cpu utilization suddenly spikeed to 100%. 5- IAM users vs IAM roles. 6- AWS direct connect. 7- AWS site to site VPN. 8- How you manage AWS S3 service in your organisation. 9- How you perform cost optimization on AWS services. 10- Have you ever used AWS lambda and WHY. 11- How would you deploy an application onto AWS EKS from scratch. 12- VPC endpoints and its types. 13- VPC peering . 14- Sage maker. 15- How will you share AMI from account A to account B. 16- Cross region resource policy. 17- Transit gateway. 18- How would you migrate on premise database to AWS database. 19- Explain how you managed AWS Infrastructure using CFT. 20- AWS Secret manager. ** TERRAFORM_INTERVIEW_QUESTIONS 1- What AWS services you created using Terraform from scratch, explain. 2- How you manage Remote state backend. 3- How you managed AWS infrastructure created outside of Terraform. ** KUBERNETES_INTERVIEW_QUESTIONS 1- How would you troubleshoot a pod in pending state. 2- Kubeproxy. 3- How you manage Load balancing in Kubernetes. 4- Have you ever performed Rolling update of Kubernetes cluster, if yes HOW. 5- HPA,VPA & Cluster auto scaler. 6- Pod scheduling ( Labels & selectors, Taints & tolerations ,Node affinity). 7- Request & Limits. 8- Metric server and monitoring. 9- Prometheus and grafana monitoring. 10- How would you troubleshoot a pod which is not able to access any specific URL. 11- Core DNS in kubernetes. 12- Ingress controller. 13- Secrets. These were the INTERVIEW QUESTIONS which I could recall they asked. Hopefully these would help somebody preparing for AWS Devops Role. And also I would like to thanks Abhishek Veeramalla (for Terraform zero to hero course) ,Piyush sachdeva ( for CKA course) and Stéphane Maarek ( for Ultimate AWS Certified Solutions Architect Associate SAA-C03 course on Udemy) as these were the courses I used for revising key concepts before Interview.

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No need to write ‘public static void main(String[] args)’ from Java 21 onwards. Below are the acceptable script that can be used instead of writing in old way.

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Deployment of Amazon clone app using Terraform and jenkins ci-cd 😎 Today I have deployed amazon app in AWS ec2 using terraform as a infrastructure building tool and then I have automate the whole process using the jenkins which allows us continuous integration and continuous deployment (ci-cd) and then I have setup Prometheus and Grafana for monitoring our application Pre-requisite AWS Account Basics of terraform and jenkins Let’s do it before doing anything → open your terminal and make a separate folder for amazon → mkdir amazon cd amazon clone the github repo git clone https:https://lnkd.in/g2atEuwP Completion steps → Step 1 → Setup Terraform and configure aws on your local machine Step 2 → Building a simple Infrastructure from code using terraform Step 3 → Setup Sonarqube and jenkins Step 4 → ci-cd pipeline Step 5 →Monitoring via Prometheus and grafana Step 6 → Terraform Destroy tags : #DevOps #LinuxCommands #Ubuntu #TechSkills #ContinuousIntegration #Automation #LearningPath #DeveloperCommunity #KnowledgeSharing #TechEnthusiast #DevOpsCulture #StayCurious #TechLearning #LinkedInLearning

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Interviewer : Have you worked on terraform in your previous project ? Yes , we used terraform for infrastructure provisioning and we do have multiple environments so we used terraform modules . Interviewer : Sounds good, Will terraform directly deploy infra when you enter terraform apply ? Terraform communicates with the cloud provider's API to create resources as defined in the configuration files, and then it prompts us to confirm with Yes or No. Interviewer : Okay, So you said you worked on modules , I wanted to delete a particular service from a particular environment ? How can I do this with terraform ? terraform destroy -target=resource_type.resource_name Interviewer: Thanks :) YouTube : https://lnkd.in/gZdpvz6U #TechIndustry #DevOps #CloudComputing #Terraform #InfrastructureAsCode #AWS #Azure #GoogleCloud #Automation #SoftwareEngineering

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📍𝐃𝐞𝐯𝐎𝐩𝐬 𝐢𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 𝐀𝐭 MNC Company📍 I recently had the opportunity to interview with MNC Company as a DevOps Engineer with 3+ years of experience. Here are some of the questions I was asked: 1. Could you give an introduction yourself and your daily activities as a DevOps engineer? 2. In Terraform, I’ve created a database with sensitive information like a password, and I don't want it to appear in the output. How can I do that? 3. Which parameter do I need to pass in Terraform to avoid displaying sensitive information like a password in the output? 4. In a Dockerfile, which user performs what action, and how can I specify the user? 5. What are the different networking types in Docker? 6. What is the difference between a bridge network and an overlay network in Docker? 7. How does a user access an application deployed in a Kubernetes cluster? What is the process? 8. Let’s say there’s an application deployed in AWS, and we want it to be highly available. How can we achieve high availability? 9. In Terraform, there is a database password in my configuration. How can I ensure that the password does not appear in the output? Which parameter should I use? 10. What is the difference between SLO (Service Level Objective) and SLA (Service Level Agreement)? 11. What is the difference between PV (Persistent Volume) and PVC (Persistent Volume Claim)? 12. Explain the Kubernetes architecture used in your project. 13. Are you using stateful or stateless applications in your project? 14. What is a StatefulSet in Kubernetes? 15. Scenario-based questions related to PVC (Persistent Volume Claim) and PV (Persistent Volume). 16. How is a Persistent Volume (PV) created in Kubernetes? 17. What is a Persistent Volume (PV)? 18. What is the difference between a Persistent Volume (PV) and a Persistent Volume Claim (PVC)? 19. How do you map ports in a Dockerfile? 20. If there is one port 80 and another port 8000, how do you map them in Docker? 21. What are the different services in Kubernetes, and which services have you worked on? 22. Which ingress controller are you using in your project? 23. What is the difference between a rollback, a canary deployment, and a blue-green deployment in Kubernetes? 24. Scenario-based questions related to deployments in Kubernetes. 25. Let’s take a scenario: I am creating an EC2 instance and attaching it to a VPC. How can I ensure the VPC is created first and then the EC2 instance? 26. How do you ensure that a VPC is created before an EC2 instance in AWS using Terraform? 27. What is Ansible, and why do we use it? 𝐑𝐞𝐩𝐨𝐬𝐭 𝐡𝐞𝐥𝐩𝐬 ♻️ 📌Available for new opportunities: If you know of any job openings or opportunities that may be a good fit for me, please don't hesitate to reach out 📌

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Three tier application(node js) 3 deployment stages will be carried out: -Local deployment done by devlopers. -Container deploymentdone by me(devops engineer). -Amazon Eks Deployment done by me(devops engineer). Local deployment. 1 -Create ubuntu server 2 - Create a cloudinary account and copy the default: cloud name api key api secret 3 - Create a new mongodb account and signup 1 -Developers test the application before the application is built. 2 - Developers download the dependencies using the node js npm tool to deployed the application locally. Container deployment. 1 - Write a jenkins pipeline. 2 - Install the application dependencies 3 - Run test cases 4 - Perform sonarqube analysis of the source code. 5 - Perform Trivy file system scan 6 - Build the image of the application using docker 7 - Scan the application image using Trivy 8 - Push the application image to docker repository and deploy the application image to a container. Amazon Eks deployment. 1 - Write a jenkins pipeline. 2 - Install the application dependencies 3 - Run test cases 4 - Perform sonarqube analysis of the source code. 5 - Perform Trivy file system scan 6 - Build the image of the application using docker 7 - Scan the application image using Trivy 8 - Push the application image to docker repository and deploy the application image to a container. 9 - deploy the application to Amazon Eks

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🔥 Terraform Scenario Based Interview Questions 🔥 Struggling with Terraform, below are top terraform scenario based interview questions:- 1. State Management Scenario: You’ve been working on a Terraform project with a remote backend. Your team accidentally deleted the Terraform state file. How would you recover it, and what precautions should you take to avoid such issues in the future? Concepts: Terraform state, remote backend, state file recovery, state locking, backup strategies. 2. Handling Resource Drift Scenario: Your infrastructure has drifted from the Terraform configuration. How would you identify and reconcile the drift using Terraform? Concepts: Terraform plan, refresh, resource drift, reconciliation strategies, Terraform state file synchronization. 3. Managing Sensitive Data Scenario: How would you handle sensitive data like passwords, API keys, or certificates in your Terraform configuration? Concepts: Environment variables, Terraform var files, AWS Secrets Manager, Vault, encryption, sensitive variables in Terraform. 4. Multi-Environment Setup Scenario: You are managing multiple environments (dev, staging, production) using Terraform. How would you structure your configuration to handle this setup efficiently? Concepts: Workspaces, environment-specific variables, folder structure, reusability with modules, remote backend per environment. 5. Terraform Modules Scenario: Your team wants to reuse a complex configuration (e.g., VPC setup, RDS instance) across multiple projects. How would you implement this with Terraform? Concepts: Terraform modules, reusability, inputs and outputs, module registry, best practices for structuring modules. 6. Provisioning and Rollbacks Scenario: You’ve provisioned infrastructure using Terraform, but a bug in your configuration caused downtime. How would you roll back to a previous working state? Concepts: Terraform state versions, terraform apply rollback, manual state modification, version control practices. 7. Terraform with CI/CD Scenario: You’re tasked with automating the infrastructure deployment process using Terraform in a CI/CD pipeline. How would you integrate Terraform in this pipeline? Concepts: Automating Terraform in CI/CD, managing state remotely in pipelines, secret management in CI/CD tools, environment isolation. 8. Managing Large Infrastructure Scenario: You’re managing a large-scale infrastructure with hundreds of resources. Applying changes takes a long time. How would you optimize this? Concepts: Terraform graph, dependency resolution, terraform parallelism, resource targeting (terraform apply -target), state partitioning. Feel free to DM me for the answers 💡 Like , comment and repost with your network 🛜 #devops #terraform #aws #interview

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Latest Opportunity🔥🔥🔥🔥🔔🔔🔔🚀 #devopsjob #devops #devopscommunity #trainwithshubham #90daysofdevops #90daysofdevopschallenge #awsdevops #azure #azurecloud #hiring #azure #devopsengineer #awscommunity

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👋 Hello Everyone, it's day 15! 📚 Below are the learnings for today: 🗄️ Storage Classes in K8s In Kubernetes, Storage Classes define types of storage available in a cluster. They enable: 1. 🔄 Dynamic provisioning of Persistent Volumes (PVs) 2. 🚀 Automatic creation of PVs when needed 3. 🎛️ Different storage options for various use cases Sample YAML for Storage Class: apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: standard provisioner: kubernetes.io/aws-ebs parameters: type: gp2 Explanation of the YAML: - 📜 apiVersion and kind: Specify this is a StorageClass resource - 🏷️ metadata.name: Name of the StorageClass ("standard") - 🔧 provisioner: Defines who will provision the storage (AWS EBS in this case) - ⚙️ parameters: Specific options for the provisioner (gp2 type for AWS EBS) 🔍 What does "provisioner" mean? The provisioner is like a storage manager for Kubernetes. It's responsible for: - 🏗️ Creating new storage volumes - 🗑️ Deleting volumes when they're no longer needed - 🔗 Attaching volumes to nodes In simple terms, when you ask for storage, the provisioner makes it happen in the background, whether it's on AWS, Google Cloud, or any other supported storage system. 💡 To check created storage classes: kubectl get storageclass 🔗 Using Storage Classes in PVCs: In your PVC (PersistentVolumeClaim), you can specify the storage class under the spec section: spec: storageClassName: standard 📦 Using PVC in Pods: You can use the PVC in a pod by providing the PVC claim name under the volumes section of the pod specification. 🔑 Key Points: - Storage Classes help in automating storage management - They provide a way to define different storage tiers - PVCs can request specific Storage Classes - Pods can then use these PVCs for persistent storage - The provisioner handles the actual creation and management of storage resources This setup allows for flexible and automated storage management in Kubernetes, adapting to different cloud providers and storage systems. That's all for today, Stay tuned for further updates 🎉 #Kubernetes #aws #DevOps #googlecloud #azure #microsoft #tech #technology #learning #techtips #CloudNative

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What matters most ? Processor performance? Memory Performance? Disk Performance? Network? you know what is TCO w.r.t server workloads performance? Reach out and comment "perf" to know more.... #servers #performance #workloads #databases

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I am always on the look out for Postgres 'Internals' Developers , especially in Europe and the USA -( Sorry no VISA sponsorship) But what is a Postgres '#Internals' Developer and how does is it different from a DBA or software engineer/software developer? A #Postgres Internals Developer focuses on the internal workings of the #PostgreSQL database system. They work on the core features, such as the query planner, execution engine, storage mechanisms, and concurrency control. This role is quite different from other developers, who might focus on using the database for building applications or managing databases at a higher level. When it comes to databases, many of us think of writing queries or managing data. But there's a whole world behind the scenes, where Postgres Internals Developers operate. These experts dive deep into PostgreSQL's source code to enhance and maintain the robustness of this powerful open-source relational database system. Different from Other Developers? While application developers use PostgreSQL as a tool to build software, Postgres Internals Developers are more like mechanics fine-tuning the engine. They don't just write #SQL queries; they enhance the very system that interprets and executes these queries. Their work requires a deep understanding of database theory, #Cprogramming, and the PostgreSQL codebase. This is a stark contrast to application developers, who primarily focus on leveraging databases to support their applications, often using high-level SQL queries and tools. Postgres Internals Developers, on the other hand, are more focused on performance and how to maximize PostgreSQL’s capabilities at its core. Skills Needed to Thrive in Postgres Internals Development To succeed as a #PostgresInternalsDeveloper, you need a mix of low-level programming and database knowledge. Here are some key skills: 1. C Programming Proficiency: Since PostgreSQL is written in C, you’ll need to be comfortable with this language. 2. Database Theory: Understanding the principles of relational databases, indexing, and query planning is essential. 3. System Architecture Knowledge: Familiarity with operating systems and memory management helps, as these factors influence database performance. 4. Debugging Expertise: You’ll often work with complex, low-level code, requiring strong debugging and profiling skills to identify bottlenecks and issues. Why Postgres Internals Development Matters Postgres Internals Developers are crucial to the open-source community #pgconfEU. Their contributions drive PostgreSQL’s reputation as a high-performance, reliable database solution. Their improvements help everyone who relies on PostgreSQL If you are one, you probably know me! #ThePostgresRecruiter #PostgresDevelopers open to a new gig? DM me here

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Hello everyone, I am exited to shear a my End-to-End project 🎊 🎊 #Tool used# #Cloud : AWS #Region : Mumbai #VM : Ubuntu 24.04 #K8s: EKS -1.30 #Jenkins : v2.60   -  webhook integration with sonarqube scanner. #Jenkins Stages# 1) git checkout  2) SonarQube:lts-community 3) Quality gate  4) OWASP dependencies  check  5) Maven stage : maven clean install  6) Deploy artifact on JFrog : v7.10 7) Build Docker image  8) Scan Docker image using Trivy :v0.50.0 9) Push docker image on docker-hub  10) Cleanup docker image  11) Update the tag in yml file which is inside another repo using script. #Gitops Tool# #Argocd: v2.12.3  - webhook integration with argocd -Argocd is continues look targeted Repo . When tag number is Update ,he will sync the changes automatically and deploy it. #Helm: v3.15.4 #Monitoring Tool# #Zabbix: 7.0LTS #Logging# #EFK : (Elasticsearch fluentd kibana ) Big Thanks to Aditya Jaiswal

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🚀Recently asked 𝐒𝐜𝐞𝐧𝐚𝐫𝐢𝐨 𝐛𝐚𝐬𝐞𝐝 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 on 𝐀𝐖𝐒-𝐃𝐞𝐯𝐎𝐩𝐬: 🌐Designation- 𝗗𝗲𝘃𝗢𝗽𝘀/𝗖𝗹𝗼𝘂𝗱 🌐Experience- 𝟮-𝟱 𝒀𝙚𝒂𝙧𝒔 𝗧𝗼𝗽𝗶𝗰𝘀:  *** 𝗜𝗔𝗠, 𝗥𝗗𝗦, 𝗘𝗟𝗕, 𝗔𝘂𝘁𝗼 𝘀𝗰𝗮𝗹𝗶𝗻𝗴, 𝗰𝗼𝗻𝘁𝗿𝗼𝗹 𝗧𝗼𝘄𝗲𝗿, 𝗹𝗮𝗻𝗱𝗶𝗻𝗴 𝘇𝗼𝗻𝗲, 𝗔𝗪𝗦 𝗼𝗿𝗴𝗮𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗥𝗼𝘂𝘁𝗲 𝟱𝟯, 𝗰𝗹𝗼𝘂𝗱𝘄𝗮𝘁𝗰𝗵, 𝗔𝗪𝗦 𝗕𝗲𝗱𝗿𝗼𝗰𝗸 *** 1. What is the Target group in ELB? and how does it work? 2. What are the listener rules in ELB? 3. What is the purpose of AWS Landing Zone, and how does it streamline multi-account setups? 4. What are Service Control Policies (SCPs), and how do they differ from IAM Policies? 5. How does AWS Control Tower enforce governance and compliance across multiple accounts? 6. What is AWS Organizations, and how does it assist in managing compliance across accounts? 7. How do you ensure compliance with industry regulations like GDPR or HIPAA in AWS? 8. Can you explain how auto-scaling policies are configured based on CloudWatch metrics? 9. What happens when all targets in a target group become unhealthy? 10. How can you implement cross-account access securely using IAM roles? 11. How does Amazon RDS differ from Amazon Aurora in terms of scalability? 12. What are common use cases for Amazon Elasticsearch/OpenSearch, and how do you secure it? 13. Explain the difference between latency-based routing and geolocation routing in Route 53. 14. How do you integrate Route 53 health checks with failover routing? 15. What is the difference between CloudWatch Logs and CloudWatch Metrics? 16. What are the challenges of migrating an existing multi-account setup to AWS Landing Zone, and how would you address them? 17. You have a high-traffic application, and users report intermittent 503 errors. How would you troubleshoot the Application Load Balancer and the target group's health checks? 18. What would you do if an auto-scaling group fails to scale up despite exceeding the defined CloudWatch alarm thresholds? 19. How would you configure predictive scaling in Auto Scaling to handle seasonal traffic surges for an B2B e-commerce application? 20. How would you design a temporary access solution using IAM policies for a third-party vendor requiring access to specific AWS resources? 21. How would you integrate AWS Bedrock with other AWS services to deliver real-time personalized recommendations using generative AI?

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Want to learn Ansible? Here is one course which I recommend 👇 In the field of IT, developing software isn't enough, provisioning infrastructure for that software isn't enough either! To bring software to life, we would actually need to configure and deploy it. This is where Ansible comes in, it's a software configuration management tool, that performs all those tasks in an automated way ⚙ The course starts by covering basic topics including inventories, playbooks, roles, modules, and templating with Jinja2. It then progresses to advanced topics including working with cloud providers, building custom plugins, and securing information with Vault. This course is made by James Spurin, and I strongly recommend it! Happy learning 😊 #Ansible #DevOps

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