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Top 30+ Spark Interview Questions

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 Apache Spark is an open-source, lightning-quick computation platform based on Hadoop and MapReduce. It supports a variety of computational approaches for rapid and efficient processing. Spark is recognized for its in-memory cluster computing, which is the primary factor in enhancing the processing speed of Spark applications. Matei Zaharia developed Spark as a Hadoop subproject at UC Berkeley's AMPLab in 2009. It was later open-sourced in 2010 under the BSD License and contributed to the Apache Software Foundation in 2013. Spark rose to the top of the Apache Foundation's project list beginning in 2014. In the ever-changing field of data processing and analytics, knowing Apache Spark is an essential skill for individuals wishing to flourish in big data technology. Whether you're preparing for your first Spark interview or trying to further your career, a thorough grasp of Spark interview questions is critical to success. Starting a Spark interview may be both exciting and d...

Use of Static Keyword in Java

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  If you're delving into the world of Java programming, chances are you've encountered the static keyword . A fundamental element of the language, the static keyword is employed to declare class member variables and methods. Unlike their instance counterparts, static members are associated with the class itself rather than individual objects, offering unique advantages in terms of code efficiency and organization. Static Variables: A Class-wide Approach Static variables, declared using the static keyword, belong to the class rather than any specific instance. This means they can be accessed directly using the class name followed by a dot operator. For instance, in a banking application, a static variable like 'totalDeposits' could be used to keep track of overall deposits across all accounts. This eliminates the need for object instantiation, enabling efficient and direct access to class-level data. The static keyword is instrumental in creating class variables, a share...

Dice Academy Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in Dice Academy begins its adventure through the busy streets of New Delhi and discovers that it is more than simply a school. It is a force to be reckoned with, a center of creativity and invention, and a doorway to employment in the digital industry that can change lives. In this thorough investigation, we dissect Dice Academy, delving into its various career paths, painstakingly designed courses, adaptable learning environments, open pricing policies, and open feedback from professionals and students who have gone through its doors. Dice Academy Review dynamic school with two campuses that are tucked away in the bustling center of New Delhi. It combines creativity and technology in a fluid way, acting as a link between theory and practice. This institution has left its mark for more than ten years, serving as a guide for thousands of students stepping into the digital era. Dice Academy is dedicated to providing top-notch instruction in a variety of subjects, ...

Udacity Reviews- Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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  Source- analyticsjobs.in Udacity , founded in 2011 by visionaries Sebastian Thrun, David Stavens, and Mike Sokolsky, has rapidly established itself as a trailblazer in the realm of online education. Focused predominantly on technology-related courses, Udacity offers an extensive array of programs encompassing programming, data science, artificial intelligence, business, and more. Udacity Course Review One of Udacity's standout features is its unwavering commitment to providing industry-relevant, job-focused education. The organization takes pride in collaborating closely with leading companies and industry experts to design curricula that directly align with real-world skills and demands. This strategic partnership approach ensures that learners acquire practical knowledge, significantly enhancing their employability. Notably, Udacity's alliances with tech behemoths like Google, IBM, Amazon, and Nvidia have resulted in the development of specialized programs tailored to addr...

Coursera Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in Coursera is on a mission to democratize access to quality education, enabling learners worldwide to boost their skills, pursue their passions, and advance their careers. Through the strategic use of technology and innovation, Coursera has become a hub for flexible learning experiences tailored to diverse learning styles and preferences. Coursera Review The platform boasts an extensive catalog of thousands of courses covering a wide spectrum of subjects, including computer science, data science, business, humanities, and health, geared towards enhancing job skills. These courses stand out due to their creation and delivery by esteemed educators and subject matter experts, ensuring a high standard of instruction and practical relevance. One distinctive feature of Coursera is its specialization programs, offering learners the opportunity to delve deeper into specific subjects by completing a series of interconnected courses. These specializations often culminat...

Codedamn Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in Codedamn Review Codedamn has positioned itself as a premier resource for aspiring developers worldwide, aiming to be the ultimate destination for those looking to delve into the intricacies of programming. As a scalable ed-tech firm, their focus lies in the development of interactive learning technologies, with a strong emphasis on fostering a vibrant community of learners. Let's delve into the expansive offerings provided by Codedamn. Courses and Career Tracks Codedamn boasts a diverse array of courses catering to professionals at various skill levels. Whether you're a novice or an experienced developer, there is something tailored for everyone: Foundational Learning : Delve into the basics of HTML, CSS, JavaScript, and explore popular web development frameworks such as React and Angular.    Backend Development : Master server-side technologies like Node.js, Express, and delve into databases crucial for backend development. Mobile App Development :...

Testbook Reviews- Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in   Testbook.com , a leading EdTech organization, has positioned itself as a frontrunner in online exam preparation and education, going beyond its initial acclaim for competitive exam readiness to include comprehensive courses in data science and software development. Testbook Course Review In the field of data science, Testbook.com stands out by offering well-structured, industry-relevant courses aimed at equipping learners with the skills demanded in this dynamic field. The curriculum spans a broad spectrum, covering foundational concepts such as statistics and programming languages like Python and R, extending to advanced machine learning and data analysis techniques. Through a combination of theoretical learning and practical projects, students not only acquire theoretical knowledge but also gain practical insights and proficiency in applying data science methodologies. On the software development front, Testbook.com has crafted courses specifically des...

Itvedant Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in Introduction : Itvedant , a renowned IT training institution, has been at the forefront of shaping technologists into industry-ready experts. This comprehensive review delves into the key aspects of Itvedant's offerings, focusing on the quality highlighted in numerous positive Itvedant reviews. With a commitment to providing a transformative learning experience, Itvedant covers a diverse range of programs, from web programming to data science, offering hands-on projects and personal mentorship. Understanding Itvedant: Itvedant stands as India's premier IT training institution, garnering a stellar reputation over a decade. Founded in 2012 by CEO Swapnil Gondkar, Itvedant boasts a 100% job guarantee, having educated over 40,000 students and collaborated with more than 1000 businesses. The institute's widespread presence across India, coupled with a dedicated team of full-time corporate trainers, ensures an exceptional educational journey for aspiring...

TopMentor Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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  source - analyticsjobs.in In the contemporary landscape of skill acquisition and career development, the role of mentorship has become increasingly crucial. Top Mentors, a prominent website in this domain, stands out as a valuable resource offering guidance, advice, and inspiration across various fields. In this exploration, we delve into the significance of Top Mentors, examining its offerings, history, and unique features, with a focus on its Data Science program. Top mentor review Top Mentors serves as a multifaceted platform, connecting individuals with experienced mentors who share their knowledge and insights. Beyond individual guidance, the website acts as a community hub, fostering collaboration, problem-solving, and inspiration among its users. The community aspect plays a pivotal role in nurturing talents and contributing to social dialogue. Top Mentor Reviews shed light on the diverse high-level courses available on the platform, covering areas such as career options,...

Coding Invaders Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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Source - analyticsjobs.in Introduction: Coding Invaders , an ed-tech company, has emerged as a leading platform offering specialized professional courses in Data Science, Data Analysis, Programming, and IT Management. With a mission to help 1 million Indians establish careers in the IT sector, Coding Invaders aims to provide accessible and affordable education that prepares students for job opportunities. In this comprehensive review, we will delve into the various aspects of Coding Invaders, including its courses, instructors, costs, placements, and customer feedback. Coding Invaders Review : Founded in 2021 by Alexander Turilin and Alexander Eroshkin, Coding Invaders has evolved over the years to become a prominent player in the field of online education. The company's mission is to bridge the gap between education and employment by offering high-quality courses designed to meet the demands of the IT industry. Courses and Features: Coding Invaders offers a wide range of courses,...

Data Einstein Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in The Data Einstein Institute, a specialized training and educational platform, stands as a beacon for individuals seeking expertise in artificial intelligence, web development, UI/UX, and data science. Offering comprehensive resources, courses, and workshops, the institute is home to over fifty skilled professionals working remotely to create skill-focused programs. Digicrome Review by analyticsjobs.in Founded by Shubham Pratap Singh and Shubhi Gupta, Data Einstein has been at the forefront of modernizing machine learning, artificial intelligence, and data science. The institute's reputation as a data science expert is bolstered by groundbreaking research, innovative models, and collaborations with academic institutions and businesses. Mission and Vision The mission of Data Einstein, as outlined in reviews, is to provide students with a top-notch education in data science, fostering practical experience and a deep understanding of real-world situations. T...

DigiCrome Academy Reviews – Career Tracks, Courses, Learning Mode, Fee, Reviews, Ratings and Feedback

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source - analyticsjobs.in The Digicrome Academy's advanced certification course in data science and artificial intelligence, available online, is designed to empower participants with both fundamental and advanced skills in artificial intelligence, machine learning, deep learning, and data science. This comprehensive program ensures mastery in key areas, from foundational concepts to advanced methodologies, positioning individuals at the forefront of innovation in these rapidly evolving domains. Enrolling in this program is a strategic move to enhance knowledge and gain a competitive edge in the dynamic fields of artificial intelligence and data science. Digicrome Review : Digicrome, a leading provider of online training across various IT and commercial domains, prides itself on offering courses taught by knowledgeable and experienced professors. These courses cater to students of all skill levels, from beginners to advanced practitioners. The primary mission is to equip students...