Jvm Study guides, Study notes & Summaries

Significance of JVM - ANSWER Portability Universality Performance Class - ANSWER declares the code to be a software component for which bytecode should be generated by the compiler String Literals - ANSWER Strings enclosed in double quotes ex: "Hello World!" Concatenated Strings - ANSWER Strings joined together to create new character strings ex: "Hello " + " world!"

To base 10 correct answers Take each digit and multiply by its respective power From base 10 correct answers Long division Hex to binary correct answers convert each individual digit Binary to hex correct answers convert individual groups of 4 # of combinations you can represent with n bits correct answers 2^n What does an operating system do? correct answers Process management Memory management Primitive I/O GUI (Windowing, etc.) Network control (TCP, etc.) Security (Accoun...

Class correct answers a data type containing attributes (state) and operations (behaviors) Object correct answers a particular instance of a class Interpreted Languages (e.g. JavaScript, Perl, Ruby) correct answers translates source into binary and executes it Small, easy to write is unique to each platform (operating system) Compiled Languages (e.g. C, C++) correct answers is platform dependent Many other models: e.g., Java (Python is stranger still) correct answers Bytecode is...

CERT QUIZ -- Evaluate and select system components to meet requirements and technical limitations for a new or existing environment. QUESTION: A couple of system administrators are discussing whether a reverse proxy should be used for the company's HTTPS encrypted Jira installation. Which statement accurately describes some of the benefits of using Apache as a non-caching reverse proxy? A) The reverse proxy will benefit system security by making it possible for the admins to more easily m...

Abstract classes used when: Common abstract methods to be re-used for different clients. 'Extend' the class. Abstract classes do not have pre-defined methods, only abstract methods. T/F? False. Abstract class must have at least one abstract method, rest may be initiated pre-defined methods. Interfaces used when: All abstract methods and no pre-defined methods. 'Implement' the class. Local (method) variables must be defined but not initialized. T/F? False. Local vari...

Mulesoft Integration Architect Exam Questions and Answers | 100% Correct| 2024 Update What characterises integration solutions across an enterprise? -Answer-- Various systems and applications to connect - Various stakeholders - Conflicting goals - Stakeholders have different assumptions, understandings and language - Systems have different requirements, reliability, availability and performance What is the most important objective of an integration solution? -Answer-To address the in-sc...

Each class you create becomes a new _____ that can be used to declare variables and create objects. Type Which of the following sets of statements creates a multidimensional array with 3 rows, where the first row contains one value, the second row contains 4 items and the final row contains 2 items? int[][] items; items = new int[3][]; items[0] = new int[1]; items[1] = new int[4]; items[2] = new int[2]; Declaring main as static allows the JVM to invoke main ________. Without creating...

Why should you use Spring Boot? - Stability Based on JVM Connectivity Cloud-Native Flexibility Open Source Difference between Spring and Spring Boot - Spring: Web application framework, provides tools and libraries to create web apps, unopinionated view Spring Boot: Module of Spring, used to create a Spring application that can just run/execute less complex than Spring, opinionated view of a platform

WGU C482 Software 1: Oracle Certified Associate Java SE 8, Questions and answers. Graded A+ What is an object? - -An object is a runtime instance of a class in memory. What is a class? - -A class is a program code template used to produce objects. Classes are the building blocks of Java. What are the members of the class? - -The members of a class consist of methods and fields. What are methods? - -Methods (also known as functions or procedures in other programming languages) are sets...

CSIS 212 Final Exam. Course 202020 Spring 2020 CSIS 212-B01 LUO Test Final Exam Started 3/6/20 7:51 PM Submitted 3/6/20 8:45 PM Due Date 3/6/20 11:59 PM Status Completed Attempt Score 144 out of 150 points Time Elapsed 53 minutes out of 2 hours Instructions covers Modules/Weeks 5–8 open-book, open-notes 2-hour time limit 50 questions - Multiple Choice and True/False Do not click the BACK button because this will lock you out of the exam. The timer will continue if you leave t...