Machine learning

Python short videos for interview preparations

Python #2 handling file not found error Python # 15 Lambda function in Python 3 onwards Python #7 Exceptions | AttributeError — happens when an attribute reference or assignment fails Paython #8 Exception |IOError — happens when I/O operation open() function fails like file not found Python #9 Exception | ImportError happens when import statement …

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What’s QA Architect and what are the responsibilities

WHAT’S QA ARCHITECT AND WHAT ARE THE RESPONSIBILITIES QA Architect role for a team or organization is critical for success. QA Architect roles can be following based on the what the team’s immediate needs and objectives, Could be a thinker to bring innovations especially for a matured agile team. Could be a trainer for a …

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What is contract testing

What is contract testing? Contract testing is famous in microservices world. When we consider less numbers of microservices,  then contract testing is not so necessary.However when you look at the Amazon or Netflix microservices mesh, it is countless. Such cases it is extremely difficult for developer or tester to maintain unit/automation test suite as per …

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How to read pdf content in java for automation project

How to read pdf content in java? Apache PDFBox and FontBox jar available can be useful here. Add these two libraries to your Maven Pom.xml or build.gradle dependencies.Then write java code to parse your PDF files to create POJOs.What is POJO in javaPOJO stands for Plain java object and it has not restrictions or class …

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What is google App Engine

What is Google’s App Engine ? Google provides platform as service or PaaS via Google’s App Engine.App Engine is a cloud computing platform where development and hosting of applications can be done.Other feature is App engine scales up on demand basis when the requests are more.App Engine supports almost all development technologies like Go, Java …

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What is ELK

What is ELK (Elastic search, Logstash, Kibana) ? ELK stack is a combination of 3 open-source products as below, Elasticsearch, a search and analytics engine. Logstash, that index the data to Elasticsearch. Logstash has a config file that has input,filter and output section. Config file looks like json file. Kibana, a visualization tool which provides …

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DevOps vs DevSecOps vs NetOps

What is DevOps vs DevSecOps vs NetOps ? DevOps is the practice of using set of tools, processes and practices to get good agility in software implementation to customers. It combines Dev (software development ) and Ops (information operations). DevOps shortens the development lifecycles and provides Continous Integration & Delivery. DevSecOps is when security features are …

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Jenkins job vs pipeline

What is Jenkins jobs and Jenkins pipeline ? Jenkins jobs and Jenkins pipeline are essentially same, however pipeline is more staged flow of jobs. For Jenkins pipeline, Jenkinsfile is used.What is Jenkinsfile?Jenkinsfile is a text file placed in the root project directory. The Jenkinsfile has multiple stages like build, unit test, sonar test, functional,  regression, …

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What is Flagger

What is Flagger and how that is used in cloud ? Flagger works are controller of the deployment workflow and helps automating the promotion of canary deployments. It utilizes the Istio’s and Prometheus metrics for analyzing application behaviors.What is Istio ?Istio is an open source service mesh that allows you to connect, monitor, secure your …

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How to deploy machine learning models

How to deploy machine learning models ? Machine learning models can be developed using TensorFlow, and orchastrated using Kubernetes and build it in Docker container. These can be combined with AWS services like CloudWatch, EKS and S3. This can basically give an API for developers to deploy their machine learning models. What is Tensorflow? Tensorflow …

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