Category Archives: Career Planning

Elasticsearch Interview Questions & Answers – Set 1

elasticsearch interview questions and answers

In this post, you will learn about fundamentals and best practices with ElasticSearch based on the following: Revision notes on Elasticsearch fundamentals A set of questions to test your knowledge and, in turn, help you learn Elasticsearch concepts related to index and shards; These questions could as well help you prepare for interviews related to ElasticSearch A set of interview questions ElasticSearch Fundamentals – Revision Notes Each Elasticsearch shard is a Lucene index The number of shards and replicas can be defined per index at the time of creation of the index. The number of replicas per shard can later be changed. Shard in ElasticSearch is primarily a Lucene index …

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Posted in ElasticSearch, Interview questions, Java. Tagged with , , .

10 Spring Framework Interview Questions for Freshers

Spring framework interview questions for freshers

Spring Framework is one of the most popular and widely used Java frameworks which makes it very easy to create a Java application/web application using several out-of-box framework components provided by Spring. Thus, it is imperative that beginners starting to do Java web app would end up using Spring framework for building the app. From that perspective, it becomes of great importance for beginners to take note of some of the basic concepts related to which interview questions can be asked. In this post, you will learn some of the Spring framework fundamentals concepts which could be asked in form of interview questions and answers. These questions and answers may …

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Posted in Career Planning, Freshers, Interview questions, Java. Tagged with , , .

5 Reasons to get Docker Certified Associate Certification

docker certified associate dca certification

Docker certification is about passing Docker Certified Associate (DCA) exam and getting recognition for your Docker skills. The following are some of the benefits mentioned on the Docker certification page. Recognition for your Docker skills with an official Docker credential Digital certificate and use of the Docker Certified Associate logo Exclusive access to the Docker Certified professional network on LinkedIn and invites to certified-only events However, I believe there is much more to why developers should consider going through the Docker certification exam preparation, if not, take the exam and get certified. In this post, I would like to present some perspectives in relation to Docker certification. In the process, …

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Posted in certifications, Dockers. Tagged with , .

Docker Certification Practice Questions – Dockerfile

docker certification

Docker allows applications to run securely while being isolated in a container, packaged with all its dependencies and libraries. It has become extremely popular virtualization technology of recent times. Thus, it makes it much more important to learn this technology and complement your developer’s experience as it not only enhances your productivity but also help you in your career from an overall perspective. Read this post in relation to why you should consider adopting docker sooner than later. In this post, you will take a practice test and learn the related notes in relation to building Docker image using Dockerfile. This and several other practice tests which will be published …

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Posted in certifications, Dockers, Interview questions. Tagged with , , .

Machine Learning – Validation Techniques (Interview Questions)

Validation techniques in machine learning are used to get the error rate of the ML model which can be considered as close to the true error rate of the population. In case the data volume is large enough to be representative of the population, you may not need the validation techniques. However, in real world scenario, we work with the sample of data which may not be the true representative of the population. This is where validation techniques come into the picture. In this post, you will briefly learn about different validation techniques such as following and also presented with practice test having questions and answers which could be used …

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Posted in Data Science, Interview questions, Machine Learning. Tagged with , , .

Kubernetes Certification Practice Test (Storage Volumes)

kubernetes certification CKA exams questions

Kubernetes storage volumes is a very important concept in relation to how data is managed within a Pod (consisting of one or more containers) and also the data lifecycle. In this post, you will learn about some of the following in relation to Kubernetes storage volumes. There is a practice test which will help you test your knowledge in relation to the storage volumes concept in Kubernetes. This test could prove to be useful and helpful for Kubernetes certification examination for Certified Kubernetes Administration (CKA). It may also prove to be useful for interviews. Revision notes on Kubernetes storage volumes Practice test Revision Notes Kubernetes different volume types such as some of the following …

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Posted in certifications, Interview questions, Kubernetes. Tagged with , , .

Blockchain Architect – A Sample Job Description

blockchain architect job description

Blockchain application development is going mainstream, and hence, would be requiring professionals with different roles and responsibilities including Blockchain architect, Blockchain developer etc. You may want to check out different Blockchain job designations on this page. The following is a list of points which can be made part of job description for Blockchain architect and related designations such as Blockchain platform architect, Blockchain solution architect, Blockchain lead architect etc. Demonstrate good understanding of Blockchain fundamentals, smart contracts, consensus algorithms Good understanding of different types of Blockchain such as public, private/permissioned, public permissioned etc. Good understanding of Blockchain framework such as Hyperledger Fabric, R3 Corda, Ethereum (Solidity) Good understanding of various …

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Posted in Architecture, BlockChain, Career Planning, jobs, Reskilling. Tagged with , , .

Code Quality Interview Questions for Software Developers

software code quality interview questions

Code quality concepts must be understood well by software developers to write a good quality code. Also, technical lead and technical architects must understand the code quality (or coding) concepts very well in order to review the code (termed as code review) and ensure that good quality software is delivered to the customer. Pictorially, the following represents some of the experiences that software developers, tech leads or technical architects go through while developing software or reviewing software code quality. Enjoy the pictures :). Often code quality review of poorly written code results in lot of frustrations among project stakeholders. Thus, it is of utmost important to understand different nuances of writing code …

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Posted in Interview questions, Software Engg, Software Quality. Tagged with , .

Decision Tree Algorithm – Concepts, Interview Questions

Decision tree is one of the most commonly used machine learning algorithms which can be used for solving both classification and regression problems. It is very simple to understand and use. Here is a lighter one representing how decision trees and related algorithms (random forest etc) are agile enough for usage.   In this post, you will learn about some of the following in relation to machine learning algorithm – decision trees vis-a-vis one of the popular C5.0 algorithm used to build a decision tree for classification. In another post, we shall also be looking at CART methodology for building a decision tree model for classification. Key terminologies/definitions Key concepts Python …

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Posted in Career Planning, Data Science, Interview questions, Machine Learning. Tagged with , , .

Kubernetes – Practice Test / Interview Q&A on Service Discovery

kubernetes service discovery

This article represents concepts, revision / quick notes, and practice or sample test/interview questions and answers on Service Discovery topic of Kubernetes. These notes, Q&A could provide to be helpful for those appearing for Kubernetes administrator certification exams (CKA). Revision Notes – Service Discovery Kubernetes supports the following two modes of service discovery: Environment variable DNS Service environment details can be set based on the following format. Service name needs to be in uppercase. {SVCNAME}_SERVICE_HOST {SVCNAME}_SERVICE_PORT When using environment variables for service discovery, it is a mandate that the services must be created prior to the pods which want to access those services. DNS server creates a set of records for each service discovered via watching Kubernetes APIs. Services of type ExternalName can only be accessed …

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Posted in CloudNative, Interview questions, Kubernetes. Tagged with , , .

Hyperledger Fabric Transaction Flow (Interview Q&A & Notes)

hyperledger fabric transaction flow

This article represents concepts in relation to, how does a transaction flow in Hyperledger Fabric Blockchain network, in form of notes and interview questions and answers. Those appearing for Hyperledger Fabric interview would find the questions and notes very useful for quick brush-up. Hyperledger Fabric is a platform for distributed ledger solutions. The following represents key participants in Hyperledger Fabric Blockchain network who are involved in the transaction flow right from the initiation of transaction proposal to committing a transaction into the distributed ledger. Application: Gets involved in following capacity: Sends the transaction proposal to endorsing peers Receives the transaction results from endorsing peers Broadcasts the transaction message to ordering service Endorsing peers: Do some of the …

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Posted in BlockChain, Hyperledger, Interview questions. Tagged with , , , .

Hyperledger Fabric Distributed Ledger – Interview Questions / Notes

hyperledger fabric distributed ledger interview questions

This article represents practice test / interview questions and answers and revision notes on Hyperledger Fabric Distributed Ledger**. These questions and answers can prove to be very helpful to check your knowledge on Hyperledger Fabric if you are appearing for Hyperledger Fabric interview in near future. Hyperledger Fabric is an open-source framework for building distributed ledger solutions. The distributed ledger is maintained by every peer participating in the network. It is stored as a combination of a transaction logs and a world state database (key-value pairs). Revision Notes – Hyperledger Fabric Distributed Ledger Concepts The distributed ledger is a combination of following: Blockchain to store immutable ordered/sequenced records; It is stored in form of transaction logs and stored in peers’ file system (local …

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Posted in BlockChain, Hyperledger, Interview questions. Tagged with , , .

Hyperledger Fabric Introduction – Interview Questions / Revision Notes

hyperledger fabric introduction

This article represents practice test and revision notes on Introduction to Hyperledger Fabric. These questions and answers can prove to be very helpful to check your knowledge of Hyperledger Fabric if you are appearing for Hyperledger Fabric interview in near future. Hyperledger Fabric is an open-source framework for building distributed ledger solutions. The unique thing about Hyperledger Fabric is that it supports pluggable implementations of different components such as identity management, consensus algorithm etc. Revision notes on Introduction to Hyperledger Fabric Hyperledger Fabric can be used for creating private and permissionless Blockchain network. Blockchain Participants – Membership Members join Hyperledger Fabric Blockchain network using Membership Service Provider (MSP) service. Hyperledger Fabric allows custom MSP to be plugged. Distributed Ledger – Data and Database Hyperledger Fabric allows ledger data to be stored …

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Posted in BlockChain, Hyperledger, Interview questions. Tagged with , .

Certified Kubernetes Administrator Sample Test on Services Concept

Certified Kubernetes Administrator Practice Test on Services

This page represents practice test consisting of questions and answers on Kubernetes. This practice test covers the topic such as Kubernetes Services. The practice test can prove to be very helpful if you are preparing to take Certified Kubernetes Administrator (CKA) certification examination in near future. It covers the Networking Concepts from CKA certification exam syllabus which can comprise of 11% questions in CKA certification exam. Check out other question sets on this page, Kubernetes Certification Exam (CKA) Sample Questions Sets. Revision Notes – Kubernetes concepts on Services A Kubernetes service is an abstraction which is used to define a logical set of pods. A Kubernetes service is assigned an IP address. In service spec definition, port refers to incoming port which is mapped to targetPort on Pod. By default, the value of …

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Kubernetes Certification Exam (CKA) Sample Questions Sets

kubernetes certification CKA exams questions

This article represents a series of practice / sample tests on some of the following topics as per the Kubernetes CKA exams syllabus. Kubernetes certification expert page also provides weightage associated with different topics. Topics Weightage Application Lifecycle Management 8% Installation, Configuration & Validation 12% Core Concepts 19% Networking 11% Scheduling 5% Security 12% Cluster Maintenance 11% Logging / Monitoring 5% Storage 7% Troubleshooting 10% These questions are intended to provide you with practice tests to test your knowledge on different Kubernetes concepts before appearing for Kubernetes certification (CKA) exams. This page will be updated from time-to-time as more practice tests are added. Practice / Sample Tests on Kubernetes Topics …

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Kubernetes Interview Questions and Answers – Set 4

Kubernetes Interview Questions and Answers

This page represents practice test consisting of objective questions and answers on Kubernetes. This practice test covers the topic such as Pod Lifecycle. The practice test can prove to be very helpful if you are preparing to take Certified Kubernetes Administrator (CKA) certification examination in near future. It covers the Core Concepts from CKA certification exam syllabus. Those preparing for interviews in relation with Kubernetes or cloud-native apps would also find these questions to be useful enough. These questions can as well prove to be useful for interns / freshers / beginners. Revision Notes – Kubernetes Concepts (Pod Lifecycle) A Pod status field is a PodStatus object which has got phase field. The phase of the pod is a simple, high-level summary of where the Pod is in its lifecycle Kubelet invokes …

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Posted in certifications, CloudNative, Interview questions, Kubernetes. Tagged with , , , .