Master Computers and Technology with Fun Quizzes & Brain Teasers!

What is the information gain of an attribute that takes a collection with 12 positive items and 54 negative items and divides it into three collections: the first having 10 positive and 20 negative items, the second having 2 positive and 12 negative items, and the third having just 22 negative items
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Technology is Choose one: A. manifested only in physical capital. B. always a piece of computer code at its most basic level. C. a natural resource. D. knowledge that is available for use in other production.
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Write in JavaTwo words are anagrams if they contain the same letters in the same frequency. For instance, stale and least are anagrams of each other. A simple way to check this is to sort the characters in each word; if they get the same answer(in the example, we get aelst), the words are anagrams of each other. Write a Java method that uses the file dictionary.txt as the input and displays each word that is an anagram of each other in a group together. It just needs to read the words in the file as the input then outputs all the words that are anagrams to each other in groups.
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Provide an example of a scenario / solution that presents a tradeoff between two quality attributes i.e. a design feature that enhances an attribute important to the customer / problem domain while reducing the effectiveness of another less important attribute.
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Most Machine Learning tasks are about making predictions. This means that given a number of training examples, the system needs to be able to generalize to examples it has never seen before. What are the two main approaches to generalization?
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Suppose that you are designing the machine architecture and want to guarantee the CPU can obtain data from memory within 4 CPU cycles. Given that the address has to travel from the CPU to the memory unit (MMU) and that the data has to travel from memory to the CPU, what is the maximum distance between CPU and the MMU if the signal on the memory bus propagates at 75% of the speed of light
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Which Settings app category would you use to customize the appearance and behavior of the Start menu
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The classes and interfaces which comprise the collections framework are members of package ________.
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The accuracy of digital indicators shall be _________ of the operating pressure at which they are used.
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The function's only behavior should be to return the sum of array userVals' elements. What common error does the function make
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What consists of abstract methods (and perhaps other members) that can be used by any class, as long as the class overrides the abstract method definitions
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Which email provider initially offered free email service in exchange for scanning the content of your email messages
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What command could you use to list the files in your fileAsst directory, using an absolute path to the fileAsst directory as part of your command
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In the data preparation phase of theDAL, for which of the following reasons are analytical sandboxes the preferred type of data repository rather than those used by the rest of the organization?Select all that apply.A) The IT group in a company cannot interfere with the nature of data, security policies, and data transfer protocols that are required and used by the data analytics team.B) The data analytics team is a high-performing team working on extremely short deadlines and cannot afford to wait for members of other IT teams to set up the databases, data mining procedures, and test data models.C) The data analytics team needs to collect and analyze high volumes of diverse types of data in order to achieve its goals, whereas IT is inclined to grant access to only the minimum data needed to achieve data analytics objectivesD) The IT group in most organizations simply does not have the expertise to provide the data and support the analytics team needsE) Creating a sandbox for the data analytics project ensures none of the operations need to be done in the live, production version of the organizations databases, thereby eliminating the risk of unauthorized access or corruption.
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write code that assigns the average of the numbers from 1 to n (where n is a positive integer value) to the variable ave.
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A CRT monitors viewable size is the _____ measurement of the actual viewing area provided by the screen in the monitor.
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A grocery franchise has one or more stores identified by a location. At each store, many products are available. Each product has a numeric ID, name, price, category, and aisle stock. Products belong to two broad classifications: perishable and non-perishable. Perishable products have an expiration date. Products are displayed in exactly one of many aisles that are identified by their aisle number. An aisle contains several products. Aisles are restocked by inventory at the back of the store. Each product has an associated product inventory with a store stock; this stock is used to resupply the product stock in an aisle. Some products may be out of stock. Customers purchase products from the store. Customer data is collected, primarily their name, address, and payment card (if they do not use cash). All transactions are archived in the database, connecting the product and customer along with the day and time of purchase.Required:a. Create an Entity-Relationship Diagram that accurately models this data. Your diagram should include appropriate entities, relationships, and inheritance if necessary.b. Create a Relational Diagram based on the ER Diagram from Part 1.
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Bob, a system administrator, finds that a shared drive on his organization's network is slow because of the huge amount of data stored in it. He realizes that most employees of the company back up all their data on this drive. He wants to restrict the amount of data that each employee stores on the drive, Which of the following steps will help Bob limit employees' space usage? A. Configuring folder quota B. Configuring active screening C. Configuring passive screening D. Configuring user quota
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Deleting an extracted row from the set of extracted rows (because an identical row was retrieved from another data source) before the data is loaded into the data warehouse, is an example of ________________. Group of answer choices Pivoting
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use c++(3) Prompt the user for data points. Data points must be in this format: string, int. Store the information before the comma into a string variable and the information after the comma into an integer. The user will enter -1 when they have finished entering data points. Output the data points. Store the string components of the data points in a vector of strings. Store the integer components of the data points in a vector of integers. (4 pts)Ex:Enter a data point (-1 to stop input):Jane Austen, 6Data string: Jane AustenData integer: 6
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There are many ways in which a valid offer may be terminated. Offers may be terminated by "the actions of a party" or "by operation of law". What is meant by this? Identify and explain the various methods of termination.
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The function computes a new column, col, that is the quotient of the columns Population and Shape__Area. The resulting DataFrame with this additional
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What is the minimum number of beans needed in the xml file to integrate Spring and Hibernate assuming that you must use the xml to wire beans, and transaction management by Spring is required
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In the lab exercise this week you will try to determine the composition of an unknown analgesic compound from 4 possible standards. Your unknown will contain 1, 2, or 3 of the standard compounds. How will the composition of your unknown be determined by TLC?
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