Download or read book Top 200 Operations Engineer Interview Questions and Answers written by Knowledge Powerhouse and published by . This book was released on 2017-03-20 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Top 200 Operations Engineer Interview Questions Operations Engineer is an important technology job. There is a growing demand for Operations Engineer job with knowledge of Unix, Python, Maven, GIT etc in technology companies. This book contains popular technical interview questions that an interviewer asks for Operations Engineer position. The questions cover Python, Unix, GIT and Maven areas. It is a combination of our four other books. We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Amazon etc.Often, these questions and concepts are used in our daily work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Operations topics like- Python, Unix, Maven, GIT etc. What are the Operations topics covered in this book? We cover a wide variety of Operations topics in this book. Some of the topics are Unix, Python, Maven, GIT etc. How will this book help me? By reading this book, you do not have to spend time searching the Internet for Operations Engineer interview questions. We have already compiled the list of the most popular and the latest Operations Engineer Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for a Operations Engineer position. What is the level of questions in this book? This book contains questions that are good for a beginner Operations engineer to a senior Operations engineer. The difficulty level of question varies in the book from Fresher to a Seasoned professional. What are the sample questions in this book? Can anyone upload JARS or artifacts to Central Repository? Can we create our own directory structure for a project in Maven? GIT is written in which language? How are arguments passed in a Python method? By value or by reference? How can we create a dictionary with ordered set of keys in Python? How can we do Functional programming in Python? How can we exclude a dependency in Maven? How can we get the debug or error messages from the execution of Maven? How can we know if a branch is already merged into master in GIT? How can we resolve a merge conflict in GIT? How can we retrieve data from a MySQL database in a Python script? How can we run a process in background in Unix? How can we kill a process running in background? How can we see n most recent commits in GIT? How can we see the configuration settings of GIT installation? How can we skip the running of tests in Maven? How can you redirect I/O in Unix? How do you perform unit testing for Python code? How do you profile a Python script? How does alias work in Unix? How does memory management work in Python? How many heads can you create in a GIT repository? How Maven searches for JAR corresponding to a dependency? How will you add a new feature to the main branch? How will you check if a remote host is still alive? How will you check in Python, if a class is subclass of another class? How will you check the information about a process in Unix? http://www.knowledgepowerhouse.com

Download or read book Top 200 DevOps Engineer Interview Questions and Answers written by Knowledge Powerhouse and published by . This book was released on 2017-03-19 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Top 200 DevOps Engineer Interview Questions DevOps is one of the most popular technology trends. There is a growing demand for DevOps Engineer job in technology companies. This book contains technical interview questions that an interviewer asks for DevOps Engineer position. Each question is accompanied with an answer so that you can prepare for job interview in short time. The book contains questions on DevOps, Docker, Unix and Cloud Computing. It is a combination of our four other books. We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Amazon etc.Often, these questions and concepts are used in our daily work. But these are most helpful when an Interviewer is trying to test your deep knowledge of DevOps topics like- Jenkins, Docker, Unix, Cloud Computing etc. What are the DevOps topics covered in this book? We cover a wide variety of DevOps topics in this book. Some of the topics are Docker, AWS OpsWorks Stacks, CloudFormation, Ansible, Jenkins, Nagios, Kubernetes, Docker, Unix, Cloud Computing etc. How will this book help me? By reading this book, you do not have to spend time searching the Internet for DevOps interview questions. We have already compiled the list of the most popular and the latest DevOps Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for a DevOps Engineer position. What is the level of questions in this book? This book contains questions that are good for a beginner DevOps engineer to a senior DevOps engineer. The difficulty level of question varies in the book from Fresher to a Seasoned professional. What are the sample questions in this book? What are the popular DevOps tools that you use? What are the main features of AWS OpsWorks Stacks? How does CloudFormation work in AWS? What is CICD in DevOps? What are the benefits of Continuous Integration (CI)? What is the architecture of Chef? What are the main use cases of Ansible? What is Docker Hub? What is Multi-factor authentication? What is State Stalking in Nagios? What is the architecture of Puppet? What is the use of Kubernetes? What is the architecture of Kubernetes? What is the role of open source development in the popularity of Docker? What is the difference between Docker commands: up, run and start? What are the features of Docker Swarm? What is a Docker Image? Why do we use Docker Machine? How will you create a Container in Docker? Do you think Docker is Application-centric or Machine-centric? Can we lose our data when a Docker Container exits? What are the objects created by Docker Cloud in Amazon Web Services (AWS) EC2? How will you take backup of Docker container volumes in AWS S3? What is a Passive check in Nagios? What are the common use cases of Docker? Is there a video course available for this book? We have made a video course based on AWS Interview Preparation book on Udemy. It is very well appreciated by professionals. https://www.udemy.com/course/1127286 http://www.knowledgepowerhouse.com

Download or read book Top 200 Data Engineer Interview Questions and Answers written by Knowledge Powerhouse and published by . This book was released on 2017-03-19 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Top 200 Data Engineer Interview Questions Big Data and Data Science are the most popular technology trends. There is a growing demand for Data Engineer job in technology companies. This book contains technical interview questions that an interviewer asks for Data Engineer position. Each question is accompanied with an answer so that you can prepare for job interview in short time. The book contains questions on Apache Hadoop, Hive, Spark, SQL and MySQL. It is a combination of our five other books. We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Amazon etc.Often, these questions and concepts are used in our daily work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Big Data topics like- Hadoop, Hive, Spark, SQL, MySQL etc. What are the Big Data topics covered in this book? We cover a wide variety of Big Data and Data Science topics in this book. Some of the topics are Apache Hadoop, Hive, Spark, SQL, MySql etc. How will this book help me? By reading this book, you do not have to spend time searching the Internet for Data Engineer interview questions. We have already compiled the list of the most popular and the latest Data Engineer Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for a Data Engineer position. What is the level of questions in this book? This book contains questions that are good for a beginner Data engineer to a senior Data engineer. The difficulty level of question varies in the book from Fresher to a Seasoned professional. What are the sample questions in this book? What is the difference between ROLLBACK TO SAVEPOINT and RELEASE SAVEPOINT? How will you see the current user logged into MySQL connection? Can we create multiple tables in Hive for a data file? Can we use Hive for Online Transaction Processing (OLTP) systems? Can we use same name for a TABLE and VIEW in Hive? How can we get a random number between 1 and 100 in MySQL? How can you copy the structure of a table into another table without copying the data? How can you find 10 employees with Odd number as Employee ID? How does CONCAT function work in Hive? How will you change the data type of a column in Hive? How will you check if a file exists in HDFS? How will you check if a table exists in MySQL? How will you run Unix commands from Hive? How will you search for a String in MySQL column? How will you see the structure of a table in MySQL? How will you select the storage level in Apache Spark? How will you synchronize the changes made to a file in Distributed Cache in Hadoop? If we set Replication factor 3 for a file, does it mean any computation will also take place 3 times? Is it safe to use ROWID to locate a record in Oracle SQL queries? What are different Persistence levels in Apache Spark? What are the common Transformations in Apache Spark? http://www.knowledgepowerhouse.com

Download or read book Broadcast Operations Engineer Red Hot Career 2568 Real Interview Questions written by Red-Hot Careers and published by Createspace Independent Publishing Platform. This book was released on 2018-05-07 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3 of the 2568 sweeping interview questions in this book, revealed: Behavior question: Give me an Broadcast operations engineer example of when you had to show good leadership? - Adaptability question: What was your biggest Broadcast operations engineer failure? - Business Acumen question: What are the Core Broadcast operations engineer Leadership Competencies needed for your organization? Land your next Broadcast operations engineer role with ease and use the 2568 REAL Interview Questions in this time-tested book to demystify the entire job-search process. If you only want to use one long-trusted guidance, this is it. Assess and test yourself, then tackle and ace the interview and Broadcast operations engineer role with 2568 REAL interview questions; covering 70 interview topics including Basic interview question, Business Systems Thinking, Selecting and Developing People, Outgoingness, Motivating Others, Motivation and Values, Personal Effectiveness, Business Acumen, Setting Priorities, and Delegation...PLUS 60 MORE TOPICS... Pick up this book today to rock the interview and get your dream Broadcast operations engineer Job.

Download or read book 200 technical questions and answers for job interview Offshore Drilling Platforms written by Petrogav International Oil & Gas Training Center and published by Petrogav International. This book was released on 2020-06-29 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The job interview is probably the most important step you will take in your job search journey. Because it's always important to be prepared to respond effectively to the questions that employers typically ask at a job interview Petrogav International has prepared this eBooks that will help you to get a job in oil and gas industry. Since these questions are so common, hiring managers will expect you to be able to answer them smoothly and without hesitation. This eBook contains 200 questions and answers for job interview and as a BONUS web addresses to 309 video movies for a better understanding of the technological process. This course covers aspects like HSE, Process, Mechanical, Electrical and Instrumentation & Control that will enable you to apply for any position in the Oil and Gas Industry.

Download or read book 200 technical questions and answers for job interview Offshore Oil Gas Rigs written by Petrogav International Oil & Gas Training Center and published by Petrogav International. This book was released on 2020-06-30 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The job interview is probably the most important step you will take in your job search journey. Because it's always important to be prepared to respond effectively to the questions that employers typically ask at a job interview Petrogav International has prepared this eBooks that will help you to get a job in oil and gas industry. Since these questions are so common, hiring managers will expect you to be able to answer them smoothly and without hesitation. This eBook contains 200 questions and answers for job interview and as a BONUS web addresses to 230 video movies for a better understanding of the technological process. This course covers aspects like HSE, Process, Mechanical, Electrical and Instrumentation & Control that will enable you to apply for any position in the Oil and Gas Industry.

Download or read book Programming Challenges written by Steven S Skiena and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many distinct pleasures associated with computer programming. Craftsmanship has its quiet rewards, the satisfaction that comes from building a useful object and making it work. Excitement arrives with the flash of insight that cracks a previously intractable problem. The spiritual quest for elegance can turn the hacker into an artist. There are pleasures in parsimony, in squeezing the last drop of performance out of clever algorithms and tight coding. The games, puzzles, and challenges of problems from international programming competitions are a great way to experience these pleasures while improving your algorithmic and coding skills. This book contains over 100 problems that have appeared in previous programming contests, along with discussions of the theory and ideas necessary to attack them. Instant online grading for all of these problems is available from two WWW robot judging sites. Combining this book with a judge gives an exciting new way to challenge and improve your programming skills. This book can be used for self-study, for teaching innovative courses in algorithms and programming, and in training for international competition. The problems in this book have been selected from over 1,000 programming problems at the Universidad de Valladolid online judge. The judge has ruled on well over one million submissions from 27,000 registered users around the world to date. We have taken only the best of the best, the most fun, exciting, and interesting problems available.

Download or read book Two Hundred and One Knockout Answers to Tough Interview Questions written by Linda Matias and published by AMACOM Div American Mgmt Assn. This book was released on 2010 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides information on competency-based interviews, offers sample questions and answers, and includes fill-in-the-blank exercises.

Download or read book Elements of Programming Interviews written by Adnan Aziz and published by EPI. This book was released on 2012 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: The core of EPI is a collection of over 300 problems with detailed solutions, including 100 figures, 250 tested programs, and 150 variants. The problems are representative of questions asked at the leading software companies. The book begins with a summary of the nontechnical aspects of interviewing, such as common mistakes, strategies for a great interview, perspectives from the other side of the table, tips on negotiating the best offer, and a guide to the best ways to use EPI. The technical core of EPI is a sequence of chapters on basic and advanced data structures, searching, sorting, broad algorithmic principles, concurrency, and system design. Each chapter consists of a brief review, followed by a broad and thought-provoking series of problems. We include a summary of data structure, algorithm, and problem solving patterns.

Download or read book Ask a Manager written by Alison Green and published by Ballantine Books. This book was released on 2018-05-01 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the creator of the popular website Ask a Manager and New York’s work-advice columnist comes a witty, practical guide to 200 difficult professional conversations—featuring all-new advice! There’s a reason Alison Green has been called “the Dear Abby of the work world.” Ten years as a workplace-advice columnist have taught her that people avoid awkward conversations in the office because they simply don’t know what to say. Thankfully, Green does—and in this incredibly helpful book, she tackles the tough discussions you may need to have during your career. You’ll learn what to say when • coworkers push their work on you—then take credit for it • you accidentally trash-talk someone in an email then hit “reply all” • you’re being micromanaged—or not being managed at all • you catch a colleague in a lie • your boss seems unhappy with your work • your cubemate’s loud speakerphone is making you homicidal • you got drunk at the holiday party Praise for Ask a Manager “A must-read for anyone who works . . . [Alison Green’s] advice boils down to the idea that you should be professional (even when others are not) and that communicating in a straightforward manner with candor and kindness will get you far, no matter where you work.”—Booklist (starred review) “The author’s friendly, warm, no-nonsense writing is a pleasure to read, and her advice can be widely applied to relationships in all areas of readers’ lives. Ideal for anyone new to the job market or new to management, or anyone hoping to improve their work experience.”—Library Journal (starred review) “I am a huge fan of Alison Green’s Ask a Manager column. This book is even better. It teaches us how to deal with many of the most vexing big and little problems in our workplaces—and to do so with grace, confidence, and a sense of humor.”—Robert Sutton, Stanford professor and author of The No Asshole Rule and The Asshole Survival Guide “Ask a Manager is the ultimate playbook for navigating the traditional workforce in a diplomatic but firm way.”—Erin Lowry, author of Broke Millennial: Stop Scraping By and Get Your Financial Life Together

Download or read book Programming Interviews Exposed written by John Mongan and published by John Wiley & Sons. This book was released on 2011-08-10 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pressure is on during the interview process but with the right preparation, you can walk away with your dream job. This classic book uncovers what interviews are really like at America's top software and computer companies and provides you with the tools to succeed in any situation. The authors take you step-by-step through new problems and complex brainteasers they were asked during recent technical interviews. 50 interview scenarios are presented along with in-depth analysis of the possible solutions. The problem-solving process is clearly illustrated so you'll be able to easily apply what you've learned during crunch time. You'll also find expert tips on what questions to ask, how to approach a problem, and how to recover if you become stuck. All of this will help you ace the interview and get the job you want. What you will learn from this book Tips for effectively completing the job application Ways to prepare for the entire programming interview process How to find the kind of programming job that fits you best Strategies for choosing a solution and what your approach says about you How to improve your interviewing skills so that you can respond to any question or situation Techniques for solving knowledge-based problems, logic puzzles, and programming problems Who this book is for This book is for programmers and developers applying for jobs in the software industry or in IT departments of major corporations. Wrox Beginning guides are crafted to make learning programming languages and technologies easier than you think, providing a structured, tutorial format that will guide you through all the techniques involved.

Download or read book The Complete Q A Job Interview Book written by Jeffrey G. Allen and published by John Wiley & Sons. This book was released on 2004-04-26 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The ultimate job interview book! A systematic, foolproof way to generate offers. No job seeker should be without it." -National Job Market "The programmed system works because it is a simple, practical, proven way to interview properly. Use it to win the interview and win the job!" -Mary Lyon, Associated Press "Allen's 'Q&A' interview approach eliminates the fear of the unknown, replaces it with the confidence of knowing what to expect, and trains the applicant to get job offers." -Kimberly A. Hellyar, Director, Training Consultants International What is a job interview anyway? Is it an objective examination of your experience, skills, and work ethic? Not quite. It's a screen test. You're the actor. In this bestselling guide, Jeff Allen, the world's leading authority on the interview process, shows you how getting hired depends almost completely on the "actor factor." If you know your lines, perfect your delivery, and dress for the part, you'll get hired. If you don't, you won't. In The Complete Q&A Job Interview Book, Jeff develops your own personalized interview script to prepare you in advance for any question that comes your way. Covering questions on everything from personal background to management ability and technological know-how, he gives you a fail-safe delivery format for responding the right way every time. This new edition has been updated to guide you through today's changing job market, and includes an entirely new chapter on dealing with the latest open-ended interrogation questions. If getting a job is playing a part, this is your starring role. Follow the director, and you'll be a superstar!

Download or read book Why Startups Fail written by Tom Eisenmann and published by Currency. This book was released on 2021-03-30 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you want your startup to succeed, you need to understand why startups fail. “Whether you’re a first-time founder or looking to bring innovation into a corporate environment, Why Startups Fail is essential reading.”—Eric Ries, founder and CEO, LTSE, and New York Times bestselling author of The Lean Startup and The Startup Way Why do startups fail? That question caught Harvard Business School professor Tom Eisenmann by surprise when he realized he couldn’t answer it. So he launched a multiyear research project to find out. In Why Startups Fail, Eisenmann reveals his findings: six distinct patterns that account for the vast majority of startup failures. • Bad Bedfellows. Startup success is thought to rest largely on the founder’s talents and instincts. But the wrong team, investors, or partners can sink a venture just as quickly. • False Starts. In following the oft-cited advice to “fail fast” and to “launch before you’re ready,” founders risk wasting time and capital on the wrong solutions. • False Promises. Success with early adopters can be misleading and give founders unwarranted confidence to expand. • Speed Traps. Despite the pressure to “get big fast,” hypergrowth can spell disaster for even the most promising ventures. • Help Wanted. Rapidly scaling startups need lots of capital and talent, but they can make mistakes that leave them suddenly in short supply of both. • Cascading Miracles. Silicon Valley exhorts entrepreneurs to dream big. But the bigger the vision, the more things that can go wrong. Drawing on fascinating stories of ventures that failed to fulfill their early promise—from a home-furnishings retailer to a concierge dog-walking service, from a dating app to the inventor of a sophisticated social robot, from a fashion brand to a startup deploying a vast network of charging stations for electric vehicles—Eisenmann offers frameworks for detecting when a venture is vulnerable to these patterns, along with a wealth of strategies and tactics for avoiding them. A must-read for founders at any stage of their entrepreneurial journey, Why Startups Fail is not merely a guide to preventing failure but also a roadmap charting the path to startup success.

Download or read book Sql Server Interview Questions written by Shivprasad Koirala and published by . This book was released on 2005-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Python Machine Learning written by Sebastian Raschka and published by Packt Publishing Ltd. This book was released on 2015-09-23 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlock deeper insights into Machine Leaning with this vital guide to cutting-edge predictive analytics About This Book Leverage Python's most powerful open-source libraries for deep learning, data wrangling, and data visualization Learn effective strategies and best practices to improve and optimize machine learning systems and algorithms Ask – and answer – tough questions of your data with robust statistical models, built for a range of datasets Who This Book Is For If you want to find out how to use Python to start answering critical questions of your data, pick up Python Machine Learning – whether you want to get started from scratch or want to extend your data science knowledge, this is an essential and unmissable resource. What You Will Learn Explore how to use different machine learning models to ask different questions of your data Learn how to build neural networks using Keras and Theano Find out how to write clean and elegant Python code that will optimize the strength of your algorithms Discover how to embed your machine learning model in a web application for increased accessibility Predict continuous target outcomes using regression analysis Uncover hidden patterns and structures in data with clustering Organize data using effective pre-processing techniques Get to grips with sentiment analysis to delve deeper into textual and social media data In Detail Machine learning and predictive analytics are transforming the way businesses and other organizations operate. Being able to understand trends and patterns in complex data is critical to success, becoming one of the key strategies for unlocking growth in a challenging contemporary marketplace. Python can help you deliver key insights into your data – its unique capabilities as a language let you build sophisticated algorithms and statistical models that can reveal new perspectives and answer key questions that are vital for success. Python Machine Learning gives you access to the world of predictive analytics and demonstrates why Python is one of the world's leading data science languages. If you want to ask better questions of data, or need to improve and extend the capabilities of your machine learning systems, this practical data science book is invaluable. Covering a wide range of powerful Python libraries, including scikit-learn, Theano, and Keras, and featuring guidance and tips on everything from sentiment analysis to neural networks, you'll soon be able to answer some of the most important questions facing you and your organization. Style and approach Python Machine Learning connects the fundamental theoretical principles behind machine learning to their practical application in a way that focuses you on asking and answering the right questions. It walks you through the key elements of Python and its powerful machine learning libraries, while demonstrating how to get to grips with a range of statistical models.

Download or read book The Consulting Interview Bible written by Jenny Rae Le Roux and published by . This book was released on 2014 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coders at Work written by Peter Seibel and published by Apress. This book was released on 2009-12-21 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peter Seibel interviews 15 of the most interesting computer programmers alive today in Coders at Work, offering a companion volume to Apress’s highly acclaimed best-seller Founders at Work by Jessica Livingston. As the words “at work” suggest, Peter Seibel focuses on how his interviewees tackle the day-to-day work of programming, while revealing much more, like how they became great programmers, how they recognize programming talent in others, and what kinds of problems they find most interesting. Hundreds of people have suggested names of programmers to interview on the Coders at Work web site: www.codersatwork.com. The complete list was 284 names. Having digested everyone’s feedback, we selected 15 folks who’ve been kind enough to agree to be interviewed: Frances Allen: Pioneer in optimizing compilers, first woman to win the Turing Award (2006) and first female IBM fellow Joe Armstrong: Inventor of Erlang Joshua Bloch: Author of the Java collections framework, now at Google Bernie Cosell: One of the main software guys behind the original ARPANET IMPs and a master debugger Douglas Crockford: JSON founder, JavaScript architect at Yahoo! L. Peter Deutsch: Author of Ghostscript, implementer of Smalltalk-80 at Xerox PARC and Lisp 1.5 on PDP-1 Brendan Eich: Inventor of JavaScript, CTO of the Mozilla Corporation Brad Fitzpatrick: Writer of LiveJournal, OpenID, memcached, and Perlbal Dan Ingalls: Smalltalk implementor and designer Simon Peyton Jones: Coinventor of Haskell and lead designer of Glasgow Haskell Compiler Donald Knuth: Author of The Art of Computer Programming and creator of TeX Peter Norvig: Director of Research at Google and author of the standard text on AI Guy Steele: Coinventor of Scheme and part of the Common Lisp Gang of Five, currently working on Fortress Ken Thompson: Inventor of UNIX Jamie Zawinski: Author of XEmacs and early Netscape/Mozilla hacker