Big Data Test 1 Questions and Answers(A+ Solution guide)

Name one of the drivers of Volume in the Big Data Era? - Answer-Scalable infrastructure Value from Big Data can be _______? - Answer-Profits In the video, 2.5 Quintillion Bytes of data are equivalent to DVDs? - Answer-10 million How many petabytes make up an exabyte? - Answer-1024 What is an example of a source of semi-structured big data? - Answer-JSON files When is it estimated that the date we create and copy will reach around 35 zettabytes? - Answer-2020 What is the process of cleaning and analyzing data to derive insight and value from it? - Answer-Data Science What is the search engine used by Walmart? - Answer-Polaris An example of visualizing Big Data is _______? - Answer-Temperature on a map What is the term used to describe an holistic approach that takes into account all available and meaningful information about a customer to drive better engagement, revenue and long term loyalty? - Answer-Enhanced 360-degree view What can help organizations to find new associations or uncover patterns and facts to significantly improve intelligence, security and law enforcement? - Answer-Analyzing data in-motion and at rest In Operations Analysis, we focus on what type of data? - Answer-Machine DataWhat is a method of storing data to support the analysis of originally disparate sources of data? - Answer-Data Lakes Data Warehouses provide online analytic processing: T/F - Answer-True What does "OLAP" stand for? - Answer-Online Analytical Processing -Data storage device to store and retrieve digital information - uses a mechanical arm with a read/write head to move around and read information from the right location - Answer-Hard Disk Drive Storage device, Information is stored in microchips - Answer-Solid State Drive - the physical hardware inside a computer that temporarily stores data - allows a computer to work with more information at the same time - Answer-Random Access Memory responsible for interpreting and executing most of the commands from the other parts of a computer - Answer-Central Processing Unit renders images, animations and video for the computer's screen - Answer-Graphics Processing Unit connects all the parts - Answer-Motherboard any physical connection point - Answer-computenode - compute node blade - each blade is a node - Answer-Blade server physical infrastructure is fundamental to operation - Answer-Data center1. Computing machines 2. invention of relational data model 3. added SQL 4. large amounts of data slows down processing 5. enter data warehouse/mart 6. enter web and content management 7. managing big data (cloud storage and network speed) - Answer-Path and evolution of Data Management Data generated from real time sensors in industrial machinery or vehicles, user behavior online trackers, environmental sensors, personal health trackers and many other sense data resources - AnswerMachines vast amount of social media data, status updates, tweets, text messages, photos and medias - AnswerHumans more traditional types of data, including transaction information in databases and structured data stores in data warehouses - Answer-Organizations the widespread availability of the smart devices and their interconnectivity led to a new term being coined - Answer-Internet of Things - Has a defined length and format - helps us make sense of data - easy to store because we know what to expect ex: Social Security number, tiger card number - Answer-Structured Data