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DevOps engineers are responsible for bridging the gap between development and operations teams to streamline the software delivery process.
Automating processes to improve efficiency
Collaborating with development and operations teams
Implementing continuous integration and continuous deployment pipelines
Monitoring system performance and troubleshooting issues
Managing infrastructure as code
Top trending discussions
I was interviewed in Dec 2024.
ipconf.pl is a Perl script used for configuring network interfaces on Linux systems.
ipconf.pl is typically used to set up IP addresses, netmasks, gateways, and DNS servers on Linux machines.
It can be used to automate the configuration of network interfaces during system setup or maintenance.
The script may also be used to troubleshoot network connectivity issues by checking and modifying network settings.
ipconf.pl is of...
Scan VIP is used for load balancing traffic to multiple nodes, while Node VIP is assigned to a specific node for direct access.
Scan VIP is a virtual IP address used for load balancing traffic across multiple nodes in a cluster.
Node VIP is a virtual IP address assigned to a specific node in the cluster for direct access.
Scan VIP is typically used for services that need to be highly available and distributed across multi...
Quarantile in Exadata is a feature that isolates problematic cells to prevent them from affecting the rest of the system.
Quarantile is a feature in Exadata that identifies and isolates cells that are experiencing issues or failures.
It helps prevent the spread of issues to other cells in the system, ensuring high availability and performance.
Quarantiled cells are still accessible for diagnosis and maintenance, but are n...
The master switch in Exadata can be identified by checking the status of the cell server software.
Check the status of the cell server software using the 'cellcli' command
The cell server with the 'MS' role is the master switch
The master switch can also be identified by checking the 'cellinit.ora' file
Spine switch and leaf switch are networking components in Exadata used for connecting database servers and storage servers.
Spine switch acts as the core of the network, connecting all leaf switches and providing high-speed connectivity.
Leaf switches connect database servers and storage servers to the spine switch, facilitating communication between them.
Exadata uses a leaf-spine network architecture for efficient data ...
One of the node of a 3 node cluster is down. Explain the step by step process to troubleshoot the issue.
Shell script & terraform code output was asked.
DSA, Hashmaps, Arrays and String Manipulation
Terraform modules are reusable components that can be used to create infrastructure resources.
Modules are collections of .tf files that define resources and their dependencies
They can be used to create reusable infrastructure code
Modules can be published to the Terraform Registry for others to use
They can be used to create complex infrastructure setups easily
I applied via LinkedIn and was interviewed before Jan 2024. There were 3 interview rounds.
Kubernetes (k8s) fundamentals and role of each component
Kubelet - agent that runs on each node in the cluster and ensures containers are running
Kube-proxy - network proxy that maintains network rules on nodes
Kubernetes API server - central management entity that serves the Kubernetes API
etcd - distributed key-value store used for storing cluster data
Kube-controller-manager - runs controller processes to manage the stat...
Troubleshooting crashloop error in Kubernetes involves checking pod logs, examining resource limits, and verifying configuration files.
Check pod logs to identify the cause of the crashloop.
Examine resource limits to ensure the pod has enough resources to run.
Verify configuration files for any errors or misconfigurations.
Use kubectl commands like describe, logs, and exec to troubleshoot further.
Consider checking for iss...
1. Log parsing using python
Inodes are data structures in Unix-like file systems that store metadata about files, such as permissions, ownership, and location.
Inodes contain information about files, such as file size, permissions, timestamps, and pointers to data blocks.
Each file in a Unix-like file system is represented by an inode.
Inodes are used to efficiently locate and manage files on the file system.
When a file is created, an inode is also ...
Use the lsof command to list all files held by a process
Use the lsof command followed by the -p flag and the process ID to list files held by a specific process
For example, to list all files held by process ID 1234, run: lsof -p 1234
You can also use the -c flag to specify a process name instead of ID, like: lsof -c chrome
Containers are lightweight, portable, and efficient, while virtual machines are more isolated and resource-intensive.
Containers share the host OS kernel, making them more lightweight and faster to start compared to VMs.
VMs provide stronger isolation and security by running a separate OS instance for each VM.
Containers are ideal for microservices architecture and rapid deployment, while VMs are better for running multip...
I applied via Naukri.com and was interviewed before Feb 2023. There were 3 interview rounds.
I applied via Monster and was interviewed before Mar 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Dec 2020. There were 4 interview rounds.
I was interviewed before Jan 2021.
Round duration - 60 minutes
Round difficulty - Medium
Technical interview round that lasted for around 60 minutes. The interviewer asked me programming questions, puzzles, Java basics and some output based questions.
Given an array of integers, determine the maximum sum of a subsequence without choosing adjacent elements in the original array.
The first line consists of an...
Find the maximum sum of a subsequence without choosing adjacent elements in an array.
Use dynamic programming to keep track of the maximum sum at each index, considering whether to include the current element or not.
At each index, the maximum sum can be either the sum of the current element and the element two positions back, or the maximum sum at the previous index.
Iterate through the array and update the maximum sum a...
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via Referral and was interviewed in Jul 2020. There were 3 interview rounds.
Detect if two circular linked lists overlap
Traverse both lists and check if they have the same tail node
If they have different tail nodes, they do not overlap
If they have the same tail node, check if they intersect at any point
Use Floyd's cycle-finding algorithm to detect intersection point
I applied via Naukri.com and was interviewed in Apr 2021. There were 3 interview rounds.
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