devops interviews are becoming more competitive than ever with over 60% of tech companies increasing their demand for devop skills in 2024 alone the job market has become highly competitive hence securing a position requires not just talent but strategic preparation welcome everyone to the second episode in our series dedicated to devops interviews in the first episode we discussed key strategies to help you learn the devops or related role in 2024 and in today's video we'll break down 30 specific interview questions and answers based on the sample devops job description these questions will range from Lenox to containerization to cicd infrastructure as code and a lot more so make sure to watch this video to the end to be fully prepared for your upcoming interviews as I mentioned we use this job description to guide our discussion ensuring you can answer similar questions in your interview confidently so let's get started as we covered in the first video in this series a typical Devil's interview process usually begins with a call from the recruiter who assesses your general Feit for the role next you might meet with the iring manager who dives deeper into your technical skills and experience following that call is often a technical Deep dive where your problem solving abilities and Technical knowledge are put to the test if successful you move move on to a culture Feit interview to ensure your values align with the companies throughout these stages you face a series of technical questions designed to assess your capabilities and today using a job description displayed on your screen we'll explore potential questions you might encounter first let's start with a very common question tell me about yourself this is a very typical question which you most likely get across all stages of the interview process so you have to always be prepared for it preparing a strong response to the tell me about yourself question is crucial as it usually sets the tone for the interview it you aim to answer this question in 2 to 3 minutes and your answer should concisely summarize your professional Journey make sure to emphasize your skills and achievements and also align your experience with the specific requirements of the devops engineer role so let's say you have four years of professional experience as a devops engineer a very good answer to the tell me about yourself question will be over the past 4 years espe specializ in devops particularly in automating and optimizing cicd pipelines and Cloud infrastructure with a focus on AWS so let's say in the past you worked for a company called Tech Solutions so you say you know at Tech Solutions where I had my first significant role I improved our continuous integration practices which sped up deployment Cycles by 40% I also LED major projects to migrate our systems to a cloud-based infrastructure using Docker and kubernetes and this not only enhanced our scalability but also cut down costs significantly so let's say now you work for a company called digital innovate you know you also want to explain what you've done at digital innovat something like you know I've implemented Prometheus and grafana to proactively monitor our systems reducing downtime by 30% I also manage five kubernetes clusters running on AWS elastic kubernetes service and it is my duty to make sure that our workloads run efficient effciently and securely and usually you want to end the tell me about yourself question by touching on the role you're applying for so let's say the company is deploy chuo right so you say this role at deploy chos excites me because it offers the opportunity to leverage my skills in AWS and cicd processes at a much larger scale and in a more challenging environment you know I'm particularly drawn to your company's Innovative approach to Cloud Solutions and I'm eager to contribute to your projects that focus on scalable Cloud infrastructure this answer is obviously for someone with some years of experience but let's say you're beginner you know you want to start by saying thank you for this opportunity I recently graduated a degree in computer science where I focused on software development and systems management during my studies I became particularly interested in devops and I had the chance to work on a university project involves setting up basic cicd pipelines using Jenkins this project allowed me to understand the fundamentals of automated testing and continuous integration although I'm at the beginning of my professional Journey I'm very eager to apply my foundational knowledge in a practical real world setting I'm particularly excited about this role because it offers the chance to work hands on with Advanced devops tools and Technologies I'm ready to learn quickly and contribute to your team success especially in areas that leverage Cloud infrastructure and autom as these really interest me an interviewer will most likely have some feedback after each question they answer so they could say oh that's really interesting can you talk about the most challenging project you've worked on to answer this question I always advise the candidates follow the star approach the star approach is a structured method for responding to Competency Based interview questions by discussing the specific situation which is for the S the task which is for the T and A for action and the r for the results this method helps candidates to tell a compelling story about the experiences in a clear and concise manner so for an experienced candidate you know your situation could be at Tech Solutions during an early phase of cloud adoption we fac significant issues with our Legacy systems which were not optimized for the cloud environment and this led to Performance bottl Nets and increased costs then for the task you can say I was tasked with leading a project to migrate these systemss to a scalable cloud-based infrastructure that will not only resolve these issues but also enhance system reliability and reduce operating costs next you want to talk about the action you took which would be more like you know I initiated the project by conducting a thorough analysis of our existing infrastructure and identifying key components that could benefit from cloud scalability and automation you could also say I collaborated with three other teammates and we implemented a series of migration to AWS utilizing services like Amazon ec2 RDS and S3 along with Docker containers for application deployment and kubernetes for container orchestration I developed the cicd pipelines using junkins that integrated with our new Cloud setup ensuring smooth automated transitions during the deployment phases then you want to close it out with a result like like this the project was a success resulting in a 50% reduction in downtime and a 30% cut in operational costs our deployment Cycles sped up by over 40% significantly increasing our team's productivity and overall performance of our applications the project not only demonstrated my ability to lead and execute complex migrations effectively but also sharpened my skills in optimizing and managing cloud-based environments if you're a beginner you still want to give an answer within your current capacity as we've all worked on challenging projects one way or the other so as a beginner you also want to follow the start approach right so you can say during my final semester at the University I was part of a team project where we were challenged to develop a multi-tier web application that was to be deployed in a cloud environment which was a new territory for most of my teammates including myself that's the situation so you want to proceed to the by saying something like you know our task was to ensure that the application was not only functional but also secure and scalable which required learning and implementing new technologies under really tight deadlines next is the action you took which could be despite being new to Cloud Technologies I took the initiative to research and propose the use of AWS for our project and due to this I led the effort to use AWS elastic bin stalk for application deployment which involved learning the service from scratch and educating my team members I also implemented basic monitoring with AWS Cloud watch to track our application performance and set up alerts for potential downtime then you want to move on to the results which could be our project was successfully deployed and was one of the top rated projects in my class it handled simulated traffic efficiently and maintained good performance throughout our testing phase this experience was really instrumental for me it not only boosted my confidence in handling real world software projects but also picked my interest in Cloud Technologies and devop practices by the way one thing you want to pay attention to in interviews is personalizing your work of course it's okay to mention that you've worked in teams but interviewers really care about what you did you know what role did you play so get used to saying I did this you know I did that and so on and so forth personal ize your work makes sense all right cool now let's get into some more practical questions and we'll be beginning with lenux based questions so the interviewer could ask you to talk about your experience with managing linox servers if you do have experience with lenux then you want to express that clearly and convincingly so something like this I've been managing Linux servers for 4 years focusing on optimizing and securing high traffic environments at my current job I oversee 2 five Linux servers that support both development and production environments my responsibilities include routine maintenance security patches and performance monitoring using tools like nagio I recently led a project to optimize a patchet configurations resulting in a 30% Improvement in response times during Peak traffic I also managed Ser security setting up firewalls and SSH access controls to safeguard against vulnerable abilities additionally I use bash scripts to automate deployments and this has greatly enhanced our teams efficiently if you're a beginner first be as honest as possible with your experience as it's easier to get stuck when you don't really have an in-depth knowledge of the particular technology so you can give an answer like currently I do not have extensive handson experience managing lenux servers in a professional setting but possess a foundational understanding of Linux for my studies and personal learning initiatives I recognize the critical role that Linux plays in managing mod than cloud infrastructures and its foundational impact on Technologies like doer and kubernetes for instance Linux c groups are pivotal for resource allocation essential for Docker containers and knowledge of Linux commands is crucial for troubleshooting kubernetes ports directly via container shells my eagerness to learn and adapt is strong and I'm committed to rapidly scaling my practical skills in Linux to effectively contribute to your team objectives if given the opportunity again if you're new to devops and you have not worked with Lenox I highly recommend starting with basic Linux Administration courses and gradually progressing to more advanced topics such as shell scripting and system security platforms like lenux Foundation or free resources available online can be very helpful Linux is non-negotiable in the world of devops and a strong grasp of it will significantly enhance your ability to succeed in this field also as I've mentioned in a number of my videos as a fresher you want to work on projects you know get certified to cover up for the experience you've not had the opportunity to gather and make sure to follow the tips I shared in the first video of this series so if you've not had the chance to watch it I'll strongly advise you to do so Moving on but still on lenux interviewer might want to assess your comfort level with basic Linux commands and they could ask how do you create a manage user account on a Linux system you could answer by saying you know to create a user account in Linux you use the user ad command followed by the username for example sud sudo user at the devops D will create a user named the devops D to set or change the users's password you use the pass WD command like pseudo passwd the dev of St you also want to mention that managing user accounts also involves setting appropriate permissions and adding the user to necessary groups which can be done with user mode for instance pseudo user mode I AG pseudo the dev of dud adds the dev of dud to the pseudo group granting administrative privileges the interviewer might also want to gauge your ability to Monitor and control system processes they could ask you you how do you monitor active processes and manage them on a Linux system a good answer would be to monitor active processes in Linux the top command is commonly used this command provides a dynamic realtime view of running processes you can see CPU and memory usage per process which is crucial for performance monitoring to manage processes you can use commands like kill to terminate a process for example if a process has a process ID of 1234 running q1 1234 on your command line will attempt to terminate the process for un responsive processes K hyen 91234 sends a seq signal for stopping it moving on to determine your understanding of network security and management on Linux an interviewer might ask you about monitoring open ports they could phrase it like this how do you check which ports are open on your server here's a great answer to check open ports on a Linux server you could use the net start command which provides information about network connections and open ports for example running pseudo net start hyphen TN lists all active connections and listening ports along with a protocol and status this is crucial for ensuring that only necessary ports are open enhancing the server security posture now that we've covered some questions on Lenox let's move on to some networking and DNS related questions in networking understanding the protocols essential for data transmission is highly crucial an interviewer May assess your foundational networking knowledge by asking can you explain the difference between TCP which is transmission control protocol and UDP which is user datagram protocol there are specific things an interviewer wants to hear when they asked this question so you can answer by saying TCP and UDP are both transport layer protocols used for sending data over the internet but they differ significantly in how they manage the transmission of data TCP is connection oriented meaning it requires a handshake process to establish a connection before any data can be sent this handshake process involves three steps first is the scene or synchronized step where the client sends a sin packet to the server to initiate a connection next is the sin act step or synchronized acknowledge step where the server responds with a sin act packet to acknowledge the connection request and the final step is the act step which is the acknowledge step where the client sends an act packet back to the server and the connection is established you also want to mention that this process ensures that a reliable connection is made before data transfer begins which is why TCP is preferred for applications where data Integrity is crucial such as web browsing and email UDP or user data gram protocol on the other hand is connectionless there is no handshake process and the data is sent directly without establishing a connection making it faster but less reliable UDP does not guarantee delivery order or error checking making it suitable for applications where feed is more critical than reliability such as video streamings or online gaming DNS records are vital for managing a domain services and directing traffic appropriately so the interviewer might want to explore your understanding of DNS configurations by asking can you list some examples of DNS record types and explain what they are used for so you want to answer the question like this they are quite a number of DNS record types but I'll mention a few so first we have the address record Recs also known as a records and the link of a domain to the physical IP address of a computer hosting that domain's services for example an a record translates a domain like www.example.com to an IP like 1 192021 we also have cname records which are used to Alias one name to another for example if you have a mobile website at m. example.com as a c name to www.example.com it means m. example.com is an alias for www.example.com another popular record type is the MX record also known as Mail Exchange records which direct emails to a male server configured to accept emails on behalf of the domain just so you know we're still on networking questions given the right of remote work ensuring secure connections is paron and interviewers might ask about your capability to set up secure networks for example how do you implement a secure VPN connection for a remote team you want to give an answer like this to implement a secure VPN connection I will first choose a reliable VPN protocol like openvpn which supports robust encryption standards I would set up an open VP server on a machine that is highly available and secure each team member will install the VPN client software on their devices I'll generate certificates for both the server and each client to ensure encrypted Communications after configuring the server with the appropriate routing and firewall rules to permit only authorized access or distribute the client configurations securely you also want to mention that regular Audits and updates will be scheduled to maintain security standards and adapt to any new threats the interviewer I want to evaluate your problem solving skills by asking what steps would you take to troubleshoot a DNS resolution problem this question is very important and make sure to understand how to troubleshoot DNS issues as they happen more often than you think so you can answer by saying to troubleshoot a DNS resolution problem I'll start by using the NS lookup or dig commands to test the DNS responses from the configured DNS server if these tools indicate that the DNS server is not responding I'll check the network connectivity to the DNS server if the server is reachable but not resolving names correctly of verified DNS server configuration files for any errors additionally or check the TTL or time to leave values of the DNS records to ensure they're not cached beyond the expiration if external DNS is at fault I might temporarily switch to a public DNS service like Google's 8.8.8.8 for further testing throughout this process I'll also check system logs for any security events or configuration changes that might affect DNS operations next let's tackle some AWS related questions which are crucial as stated in the job description in an AWS environment maintaining uptime and system resilience is highly critical so an interviewer might assess your ability to architect robust system STS by asking how do you Ensure High availability and for tolerance in your AWS deployments you want to give an answer that shows that you're familiar with AWS services and features that support High availability for example you could say to ensure High availability and for tolerance in AWS I would typically use a combination of AWS services and Architectural best practices for instance I deploy applications across multiple availability zones within a region to ensure that if one availability Zone fails the application can still operate from another one I utilize AWS elastic load balancing to distribute incoming traffic across healthy Amazon ec2 instances in order to prevent any single point of failure additionally I Implement Amazon RDS multi-az or multi availability zone deployments for dat databases in order to handle failover automatically to a standby instance in case of an outage for stateless applications I Ed of to scaling to adjust the number of instances dynamically based on traffic ensuring performance remains consistent without manual intervention cost management is a crucial aspect of cloud computing especially in this current climate so to understand how you approach this interviewer might ask what strategies would you use for monitoring and optimizing costs on AWS so you want to give an answer like this to Monitor and optimize AWS costs I start by utilizing AWS cost Explorer to analyze and visualize spending patterns over time these tools helps to identify Trends you know pinpoint cost drivers and detect anomalies I Implement tagging strategies to all at costs accurately across different departments or projects ensuring transparency and accountability for optimization I use AWS trusted advisor to get recommendations on where I could reduce costs such as identifying underutilized ec2 instances that can be downsized or terminated I also take advantage of reserved instances and savings plans for workloads with predictable usage patterns which can significantly reduce our costs compared to On Demand pricing moving on security is Paramount in Cloud environments and an interviewer might try to gauge how well you follow security practices by asking describe how you secure applications and data on AWS you want to stop by saying in AWS I adopt a layered security approach to protect both applications and data I start by securing the network l are using Amazon virtual private cloud or Amazon VPC setting up security groups and network access control list or ACLS to control inbound and outbound traffic to ec2 instances and other AWS resources I use AWS policies to enforce least privileged access controls to AWS services for data security I ensure that all data stored in Amazon S3 buckets are encrypted at rest using AWS Key Management Service or AWS KMS I also enforce encryption in transit using TLS across all services additionally I regularly audit configurations with AWS config and monitor real time security events using Amazon God duty to quickly respond to potential security threats now let's move on to cicd cicd is a key devops practice and you most likely will be faced with questions on this topic an interviewer might start by understanding the tools you're familiar with they could ask what cicd tools have you used can you walk us through them so you want to give an answer like this in my experience I've primarily used Jenkins and gitlab CI for cicd Jenkins offers extensive plug-in support which allows me to customize pipelines according to specific project needs for project Pro hosted on gitlab I leverage gitlab CI due to it seamless integration with the repository enabling a straightfor setup of pipelines that automatically trigger builds tests and deployments based on commits or M requests interviewers often look for problem solving skills so they might ask you to talk about a specific challenge you faced with cicd and how you went on to solve it a good answer would be a sign significant challenge that faced with cicd was dealing with flaky tests that would pass locally but fail in the pipeline and this was causing delays and confusion across the team to resolve this I implemented a more robust test environment that closely mirrored our production setup I also introduced parallel execution of tests to reduce weight times and I added retry mechanisms for tests that were prone to intermittent failure due to external dependencies if you remember earlier in this video we talked about the star approach so you want to mention the results that the changes you made had something like these changes improve the reliability of our deployment process and reduce the manual intervention required to manage test failures next the interviewer might ask how you integrate security measures in your cicd pipelines to ensure that you can maintain secure development practices to answer this question you can say in order to ensure security within cicd pipelines I incorporate several practices first I use secret management tools like hashiko Vault to handle API Keys credentials and other sensitive data ensuring they're not exposed in the codebase I integrate security scanning tools such as Sona Cube for static analysis and sneak for dependency checks directly into the pipeline this ensures that every piece of code is scanned before it's deployed additionally I enforce the principle of least previlege by setting granular access controls on both the pipeline and deployment environments as I mentioned earlier cicd is a crucial aspect of devops and you really want to familiarize yourself with the tools that help drive this practice now let's move on to infrastructure as code using terraform virtually every organization leverages some sort of infrastructure as code to when creating resources on the cloud there are many benefits of infrastructure as code including reduced human error improv deployment consistency and a lot more so be prepared to answer questions related to this topic in your interview that being said to ensure you understand terraforms core mechanisms an interviewer might ask you can you talk about terraform State Management and when you know about terraform State lock you want to answer by saying something like terraform state is a file that terraform uses to track the state of all resources it manages it records metadata about what infrastructure was created the dependency tree and the configuration used for those resources ter from state allows terraform to map Real World Resources to your configuration to keep track of metadata and improve performance for large infrastructures on the other hand a terraform State lock is used to prevent others for example your teammates from making conflicting changes when a terraform operation is being executed this locking mechanism ensures that the state file is only being Modified by one operation at a time thus avoiding potential conflicts and inconsistencies that could arise from concurrent operations now giv terraforms powerful automation capabilities safeguarding against accidental delions is highly crucial your interviewer might ask you how do you prevent unintentional resource destruction in terraform to answer this you can say to protect resources from being accidentally destroyed you can add a life cycle block and set to prevent un called destroy flag to True within the resource configuration in terraform when this attribut is set terraform will refuse to destroy the resource even if an attempt is made to delete it via terraform plan or terraform apply this adds an extra layer of safety which ensures that critical resources aren't accidentally removed from the infrastructure to gauge your experience with structuring terraform configurations your interviewer might inquire about your use of terraform modules by asking you to explain what terraform modules are and what the advantages are if you've not worked with terraform modules and don't understand how they used please look into this but you could answer by saying ter ter modules help to encapsulate terraform configurations so that they can be reused and shared terraform modules help to keep terap code dry and by dry I mean don't repeat yourself the modules also help to manage source code effectively and they allow you to break down complex systems into manageable components for example you might have a terone module for setting up an AWS virtual private cloud with all the necessary networking resources which can then be reused in multiple environments or shared within the community in the terraform registry managing dependencies is a critical aspect of using terraform effectively and an interviewer might ask how do you ensure modules interact correctly a really good answer would be in terraform dependencies between modules are manag by passing outputs from one module to another module as an input for instance if one module creates a VP V PC and another deploys instances the VPC ID and the subnet IDs generated by the VPC module will be outputs that serve as necessary inputs for the instance module this ensures that the instance's module does not run until the VPC module has completed now that we've covered some questions on terap let's look into some Docker related questions if you've been following this channel you already know I've got a comprehensive Docker playlist that contains all you need to master Docker give it a watch and I hope you find it helpful Docker has become a key technology in devops for his ability to containerize Applications so an interviewer might ask you to describe Docker and explain its significance you want to answer by saying Docker is a platform that allows developers to package applications and their dependencies into containers and a container is a lightweight Standalone exec utable package that includes everything needed to run a piece of software including the code runtime libraries and other dependencies this ensures that the application will run consistently across any environment Docker is crucial in devs because it simplifies configuration management accelerates the development life cycle and supports cicd practices by providing a consistent environment from development to production ction Docker helps to eliminate the it works of my machine problem enhancing collaboration and efficiency next the interviewer might ask how do you handle persistent data in containers a really good answer would be to manage data within Docker containers I use Docker volumes they're completely managed by Docker and are decoupled from the life cycle of the container meaning data persists even when the container is deleted and to set them up one has to Define Docker volumes in the docker file or via the docker wrong command and this helps to ensure data persistence across container restarts and container updates the interviewer may also be curious about strategies you adopt for minimizing Docker image sizes so you could say to reduce the size of Docker images I follow several best practices first I choose the smallest base image that meets the application requirements such as an Alpine Linux image which is minimalistic yet fely functional second I leverage multi-state builds in doc files and this allows me to use one image for building the application and a smaller cleaner image to run it in the build stage I install all necessary build tools and dependencies compile the application then copy only the executable and it runtime dependencies to the final image I also have a video that covers all you need to know about Docker Multistate builds so watch it to learn more Additionally you can mention removing unnecessary files such as cash you know temporary files and build dependencies you know and also combining layers where appropriate to reduce overhead finally regularly scanning images during development with tools like Docker slim help to analyze and recommend further optimizations after addressing some questions around Docker your interviewer might move into kubernetes so let's look into some kubernetes related questions as mentioned in my video covering an introduction to kubernetes kubernetes is a key tool in the world of container orchestration so the interviewer might start by asking you what is kubernetes and what is its impact on container management you can answer by saying kubernetes is an open source container orchestration platform that automates the deployment scaling and management of containerized applications it groups containers that make up an application into logical units for easy management and Discovery cuberes enhances container management by providing features to deploy networks to provide service Discovery to scale applications up or down maintain load balancing check health of applications and manage resource allocation based on user defined configurations kubernetes is highly efficient in maintaining the desired state of the deployed applications and it automatically replaces or recreates containers that fail containers that get deleted or get terminated this not only ensures High availability but also provides load balancing services to distribute Network traffic and to ensure consistent application performance if you Autos scaling in your answer your interviewer will most likely want to understand your capability to manage resource efficiency by asking you to describe how you set up autoscaling in kubernetes and a really good answer would be to set up Autos scaling in kubernetes I'll use the horizontal P autoscaler also known as HPA this resource automatically scales the number of pods in a deployment or replica set based on observed CPU utilization or other selected metrics so firstly you want to mention that you define the deployment and ensure metric collections through metric server deployed in the cluster then you also want to mention I'll create a HPA horizontal Port autoscaler resource specifying the minimum and maximum number of ports allowed and the CPU utilization threshold that triggers the scaling the HPA or horizontal Port of the scal adjust the number of ports dynamically based on the rules defined ensuring the applications meet performance standards without over utilizing resources troubleshooting is a critical skill in kubernetes operations and an interviewer might want to know your approach to diagnosing and resolving issues with failing pods in order to evaluate your problem solving abilities so the interviewer could ask you a question like could you talk about an instance where you had to troubleshooting and fix a failing pod you could give an answer like this in one instance I encountered a situation where a pod was continuously crashing after deployment so to troubleshoot I first checked the Pod logs using the qctl logs commands which indicated a configuration error I then used qctl describe pod passing in the Pod name to get more details about the Pod States and events the event log showed that the pod was enabl to mount a required persistent volume investigating further I realized that the persistent volume claim was pointing to a non-existent storage class after correcting the persistent volume claim to reference the correct storage class and ensuring the underlying storage resources were available the port was able to start successfully this approach not only fixed immediate issues but also improved our deployment script to prevent similar errors in the future managing sensitive data securely is essential in any deployment and an interviewer might ask what are some strategies you use in handling secrets in kubernetes security is very crucial in devops and you have to always be security oriented so for this question you could say in kubernetes secrets are used to store and manage sensitive information such as passwords o tokens and SSH keys and in order to manage secret securely I typically store them in kubernetes secret objects which can be mounted as data volumes or exposed as environment variables to be used by the containers in a pod I also ensure that access to secrat is tightly controlled through kubernetes Outback or Ro based Access Control where only specific roles that require access to those Secrets can retrieve them additionally for enhanced security I integrate kubernetes with external secret Management Systems like hashiko Vault providing an extra layer of encryption and auditing capabilities next let's look into some questions around monitoring and logging monitoring in Cloud environments is crucial for maintaining performance and reliability and an interviewer might ask how do you ensure that infrastructure and applications are monitored effectively you can answer by saying in Cloud environments I Implement a comprehensive monitoring strategy using tools such as Amazon Cloud watch or Prometheus depending on the infrastructure for instance with Amazon cloudwatch have set up metrics to monitor CPU utilization dis IO and network traffic of ec2 instances I've also created alarms in cloudwatch to notify teams Via SMS or emails if metrics exceed predefined thresholds in the ating potential performance or system health issues additionally I use Prometheus for more granular monitoring setting up custom metrics that are relevant to our application specific needs and using grafana for detailed visualization this approach not only helps in maintaining Optimal Performance but also ensures High reliability and availability of our applications effective alerting is key to proactive Incident Management and an interviewer might ask you about are your methods for setting up alerts based on performance metrics in order to gauge your ability to maintain system stability you want to give an answer like this to configure alerts effectively I use a tool like Prometheus for metric collection Ander manager for handling alerts I first determine critical performance thresholds based on historical data and application requirements such as response times error rates and resource utilization for instance I might set an alert if CPU utilization exceeds 80% for more than 5 minutes which indicates a potential overload using Prometheus I write query rules that trigger these alerts when the conditions are met these alerts are then managed by alert manager which is configured throughout notifications to the appropriate channels such as slack email or an on call management platform like pager duty this setup ensures that the entire team receives timely notifications for actionable issues potentially preventing down times we've thoroughly explored questions you could be faced with in an interview for a devops engineer role and now the interviewer will most likely leave some time towards the end of the interview for you to ask questions having questions ready for the interviewer is an excellent strategy to not only show your interest in the role and Company but also to gather valuable insights that are not available in job description or during the normal course of the interview so I put together some questions you should ask at the end of the interview so first you want to ask about the current challenges that a team is facing and how someone in the role can help solve them this question is really important as it shows that you're Forward Thinking and you're mentally preparing yourself for the role if the call is with with a hiring manager or your potential manager you could ask how would you evaluate success for this position this question is also really good because the hiring manager who is potentially your manager has a lot of insight into what they expect from you if selected for the position and they're in the best position to give you the most accurate answer to this question you also want to ask about the growth and learning opportunities for devops engineers within the organization this is is also a really good question as it shows that you're dedicated to self-development and you have a growth mindset I'll reemphasize this make sure you have some questions prepared for your interviewer before we wrap up this video it's important to remember that even though we've explored a range of interview questions and answers tailored to Devil's roles can't cover every possible topic that you might encounter in an interview therefore I recommend using the job description as your guide as it serves as an excellent cheat sheet to help you prepare for questions related to the specific Technologies mentioned today we've delved into a variety of detailed scenario based questions that are aligned with a realistic job description I put together these questions and answers to equip you with the insights needed to Showcase your extensive knowledge your problem solving abilities and ultimately a your devops interviews thank you for watching if you found this video video helpful don't forget to like subscribe and leave your feedback or any questions you might have in the comments below I wish you all the best in your upcoming interviews and I'll see you in the next video bye