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TECHNICAL STANDARDS a Standards Validation Committee of Industry Representatives and Educators Reviewed and Updated These Standards on December 11, 2017
SOFTWARE AND APP DESIGN 15.1200.40 TECHNICAL STANDARDS A Standards Validation Committee of industry representatives and educators reviewed and updated these standards on December 11, 2017. Completion of the program prepares students to meet the requirements of one or more industry certification: Cybersecurity Fundamentals Certificate, Oracle Certified Associate, Java SE 8 Programmer, Certified Internet Web (CIW) - JavaScript Specialist, CompTIA A+, CompTIA IT Fundamentals, CSX Cybersecurity Fundamentals Certificate, and Microsoft Technology Associate (MTA). The Arizona Career and Technical Education Quality Commission, the validating entity for the Arizona Skills Standards Assessment System, endorsed these standards on January 25, 2018. Note: Arizona’s Professional Skills are taught as an integral part of the Software and App Design program. The Technical Skills Assessment for Software and App Design is available SY2020-2021. Note: In this document i.e. explains or clarifies the content and e.g. provides examples of the content that must be taught. STANDARD 1.0 APPLY PROBLEM-SOLVING AND CRITICAL THINKING SKILLS 1.1 Establish objectives and outcomes for a task 1.2 Explain the process of decomposing a large programming problem into smaller, more manageable procedures 1.3 Explain “visualizing” as a problem-solving technique prior to writing code 1.4 Describe problem-solving and troubleshooting strategies applicable to software development STANDARD 2.0 RECOGNIZE SECURITY ISSUES 2.1 Identify common computer threats (e.g., viruses, phishing, -
Automating Configuration N49(PDF)
Automating Network Configuration Brent Chapman Netomata, Inc. [email protected] www.netomata.com NANOG 49 — 13 June 2010 Copyright © 2010, Netomata, Inc. All Rights Reserved. Introduction Who I am What I'm here to talk about 2 Copyright © 2010, Netomata, Inc. All Rights Reserved. Why automate network configuration? Because automated networks are More reliable Easier to maintain Easier to scale 3 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... Imagine you're managing a moderately complex web site Multiple real and virtual hosts Several "environments" (production, testing, development, etc.) Separate VLAN for each environment 4 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... What networking devices & services need to be managed? Routers Switches Load Balancers Firewalls Real-time status monitoring (i.e., Nagios) Long-term usage monitoring (i.e., MRTG) 5 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... How to add new virtual host to existing load balancer pool? Set up host itself, using Puppet or cfengine or whatever Add host to VLAN defs on switches Add host to ACLs on routers Add host to pool on load balancers Add host to NAT and ACLs on firewalls Add host to real-time monitoring (i.e., Nagios) Add host to usage monitoring (i.e., MRTG) 6 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... What's the problem with doing all that by hand? You have to remember how to manage all those very different devices (and you probably don't do it very often) It takes a lot of time Every step is a chance to make a mistake You might get distracted, and never finish Over time, these small mistakes add up, leading to inconsistent networks that are unreliable and difficult to troubleshoot 7 Copyright © 2010, Netomata, Inc. -
Third-Party Software for Engage Products APPLICATIONS Red Hat
Third-Party Software for Engage Products APPLICATIONS Red Hat Enterprise Linux General Information Source Code Status Not modified by Vocera URL https://www.redhat.com/en/about/licenses-us Supplemental END USER LICENSE AGREEMENT (November 2010) License Text RED HAT® ENTERPRISE LINUX® AND RED HAT APPLICATIONS PLEASE READ THIS END USER LICENSE AGREEMENT CAREFULLY BEFORE USING SOFTWARE FROM RED HAT. BY USING RED HAT SOFTWARE, YOU SIGNIFY YOUR ASSENT TO AND ACCEPTANCE OF THIS END USER LICENSE AGREEMENT AND ACKNOWLEDGE YOU HAVE READ AND UNDERSTAND THE TERMS. AN INDIVIDUAL ACTING ON BEHALF OF AN ENTITY REPRESENTS THAT HE OR SHE HAS THE AUTHORITY TO ENTER INTO THIS END USER LICENSE AGREEMENT ON BEHALF OF THAT ENTITY. IF YOU DO NOT ACCEPT THE TERMS OF THIS AGREEMENT, THEN YOU MUST NOT USE THE RED HAT SOFTWARE. THIS END USER LICENSE AGREEMENT DOES NOT PROVIDE ANY RIGHTS TO RED HAT SERVICES SUCH AS SOFTWARE MAINTENANCE, UPGRADES OR SUPPORT. PLEASE REVIEW YOUR SERVICE OR SUBSCRIPTION AGREEMENT(S) THAT YOU MAY HAVE WITH RED HAT OR OTHER AUTHORIZED RED HAT SERVICE PROVIDERS REGARDING SERVICES AND ASSOCIATED PAYMENTS. This end user license agreement (“EULA”) governs the use of any of the versions of Red Hat Enterprise Linux, certain other Red Hat software applications that include or refer to this license, and any related updates, source code, appearance, structure and organization (the “Programs”), regardless of the delivery mechanism. 1. License Grant. Subject to the following terms, Red Hat, Inc. (“Red Hat”) grants to you a perpetual, worldwide license to the Programs (most of which include multiple software components) pursuant to the GNU General Public License v.2. -
Puppet Offers a Free, Reliable and Cross Flavor Option for Remote Enterprise Computer Management
This material is based on work supported by the National Science Foundation under Grant No. 0802551 Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author (s) and do not necessarily reflect the views of the National Science Foundation C4L8S1 System administrators are constantly challenged when managing large enterprise systems using Linux-based operating systems. Administrators need to know a variety of command line differentiations, dependency variations, and support options to support the various computers systems in use. Puppet offers a free, reliable and cross flavor option for remote enterprise computer management. This lesson will introduce you to the Puppet AdministrativeU the tool and provide you with a basic overview on how to use Puppet. Lab activities will provide you with hands-on experience with the Puppet application and assignments and discussion activities will increase your learning on this subject. Understanding Puppet is important because of its ability to manage enterprise systems. Students hoping to become Linux Administrators must gain mastery of enterprise management tools like Puppet to improve efficiency and productivity. C4L8S2 You should know what will be expected of you when you complete this lesson. These expectations are presented as objectives. Objectives are short statements of expectations that tell you what you must be able to do, perform, learn, or adjust after reviewing the lesson. Lesson Objective: U the Given five computers that need to be configured, -
User Guide for HCR Estimator 2.0: Software to Calculate Cost and Revenue Thresholds for Harvesting Small-Diameter Ponderosa Pine
United States Department of Agriculture User Guide for HCR Forest Service Estimator 2.0: Software Pacific Northwest Research Station to Calculate Cost and General Technical Report PNW-GTR-748 Revenue Thresholds April 2008 for Harvesting Small- Diameter Ponderosa Pine Dennis R. Becker, Debra Larson, Eini C. Lowell, and Robert B. Rummer The Forest Service of the U.S. Department of Agriculture is dedicated to the principle of multiple use management of the Nation’s forest resources for sustained yields of wood, water, forage, wildlife, and recreation. Through forestry research, cooperation with the States and private forest owners, and management of the National Forests and National Grasslands, it strives—as directed by Congress—to provide increasingly greater service to a growing Nation. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, 1400 Independence Avenue, SW, Washington, DC 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. Authors Dennis R. -
Ola Bini Computational Metalinguist [email protected] 698E 2885 C1DE 74E3 2CD5 03AD 295C 7469 84AF 7F0C
JRuby For The Win Ola Bini computational metalinguist [email protected] http://olabini.com/blog 698E 2885 C1DE 74E3 2CD5 03AD 295C 7469 84AF 7F0C onsdag 12 juni 13 Logistics and Demographics onsdag 12 juni 13 LAST MINUTE DEMO onsdag 12 juni 13 JRuby Implementation of the Ruby language Java 1.6+ 1.8.7 and 1.9.3 compatible (experimental 2.0 support) Open Source Created 2001 Embraces testing Current version: 1.7.4 Support from EngineYard, RedHat & ThoughtWorks onsdag 12 juni 13 Why JRuby? Threading Unicode Performance Memory Explicit extension API and OO internals Libraries and legacy systems Politics onsdag 12 juni 13 InvokeDynamic onsdag 12 juni 13 JRuby Differences Most compatible alternative implementation Native threads vs Green threads No C extensions (well, some) No continuations No fork ObjectSpace disabled by default onsdag 12 juni 13 Simple JRuby onsdag 12 juni 13 Java integration Java types == Ruby types Call methods, construct instances Static generation of classes camelCase or snake_case .getFoo(), setFoo(v) becomes .foo and .foo = v Interfaces can be implemented Classes can be inherited from Implicit closure conversion Extra added features to Rubyfy Java onsdag 12 juni 13 Ant+Rake onsdag 12 juni 13 Clojure STM onsdag 12 juni 13 Web onsdag 12 juni 13 Rails onsdag 12 juni 13 Sinatra onsdag 12 juni 13 Trinidad onsdag 12 juni 13 Swing Swing API == large and complex Ruby magic simplifies most of the tricky bits Java is a very verbose language Ruby makes Swing fun (more fun at least) No consistent cross-platform GUI library for Ruby -
Symbols & Numbers A
ruby_02.book Page 267 Thursday, May 10, 2007 4:12 PM INDEX Symbols & Numbers \ (backslash), in regular expression, for literal characters, 144 %Q for instantiating Strings, 23, \W, in regular expression, for 108–109, 215–216, 219, 239, whitespace, 66 245, 248–250 { } (braces) %w for instantiating Arrays, 47, for blocks, 28 113, 115 for declaring Hash, 42 & (ampersand), for expressing blocks {x}, in regular expression, 79 and Procs, 105–106 - method (Hash), 93 ! (exclamation point), for destructive ||= operator, 77–78, 127 methods, 20, 22–23 | (pipe) character, in regular || (or) operator, 17 expression, 56 # character + method of Integers and Strings, 3–4 for comments, 14 + (plus sign), in regular for instance method, 234 expression, 62 #{} for wrapping expression to be = (equal sign), for assigning value to interpolated, 23 variable, 9 #! (shebang), 47 == operator, for equality testing, 14 $ (dollar sign), for bash prompt, 19 =begin rdoc, 22 * (asterisk), in irb prompt, 8 =end, 22 ** (asterisk doubled), for “to the <=> method (Comparable), 145, power of,” 72 150–151 /\d+/ in regular expression, for digits <% and %> tags, 211 only, 79 <%= tag, for printing expression, 214 :needs_data Symbol key, 116 99bottles.rb script, 20–25 :nitems Symbol key, 116 :unless0th Symbol key, 116 ? (question mark) A in predicate method names, 22 actionpack, warnings related to, 226 in regular expression, for optional Active Record, Rails dependence expressions, 144 on, 227 @ sign, for instance variable, 21–22 Agile Web Development with Rails @@ sign, for class -
Rubinius Rubini Us Rubini.Us Rubini.Us Rubini.Us Rubinius History and Design Goals
Rubinius Rubini us Rubini.us rubini.us http:// rubini.us Rubinius http://godfat.org/slide/2008-12-21-rubinius.pdf History and Design Goals Architecture and Object Model History and Design Goals Architecture and Object Model Evan Phoenix February of 2006 RubySpec MSpec Engine Yard C VM Shotgun C VM Shotgun C++ VM CxxTest LLVM History and Design Goals Architecture and Object Model Reliable, Rock Solid Code Reliable, Rock Solid Code Full Test Coverage 健康 Clean, Readable Code Clean, Readable Code Little Lines in Each File Clean, Readable Code Macro, Code Generator, Rake Task Clean, Readable Code CMake Clean, Readable Code CMake Clean, Readable Code C++ Object to Ruby Object 1 to 1 Mapping 清新 健康 清新 Modern Techniques Modern Techniques Pluggable Garbage Collectors Modern Techniques Pluggable Garbage Collectors • Stop-and-Copy Modern Techniques Pluggable Garbage Collectors • Stop-and-Copy • Mark-and-Sweep Modern Techniques Optimizers Modern Techniques Git, Rake, LLVM Squeak the Smalltalk-80 Implementation Squeak Slang Squeak • Alan Kay • Dan Ingalls • Adele Goldberg Smalltalk Xerox PARC Smalltalk Object-Oriented (differ from Simula and C++) Smalltalk GUI Smalltalk MVC History and Design Goals Architecture and Object Model Real Machine C++ Virtual Machine Real Machine kernel/bootstrap C++ Virtual Machine Real Machine kernel/platform kernel/bootstrap C++ Virtual Machine Real Machine kernel/common kernel/platform kernel/bootstrap C++ Virtual Machine Real Machine kernel/delta kernel/common kernel/platform kernel/bootstrap C++ Virtual Machine Real -
Debugging at Full Speed
Debugging at Full Speed Chris Seaton Michael L. Van De Vanter Michael Haupt Oracle Labs Oracle Labs Oracle Labs University of Manchester michael.van.de.vanter [email protected] [email protected] @oracle.com ABSTRACT Ruby; D.3.4 [Programming Languages]: Processors| Debugging support for highly optimized execution environ- run-time environments, interpreters ments is notoriously difficult to implement. The Truffle/- Graal platform for implementing dynamic languages offers General Terms an opportunity to resolve the apparent trade-off between Design, Performance, Languages debugging and high performance. Truffle/Graal-implemented languages are expressed as ab- Keywords stract syntax tree (AST) interpreters. They enjoy competi- tive performance through platform support for type special- Truffle, deoptimization, virtual machines ization, partial evaluation, and dynamic optimization/deop- timization. A prototype debugger for Ruby, implemented 1. INTRODUCTION on this platform, demonstrates that basic debugging services Although debugging and code optimization are both es- can be implemented with modest effort and without signifi- sential to software development, their underlying technolo- cant impact on program performance. Prototyped function- gies typically conflict. Deploying them together usually de- ality includes breakpoints, both simple and conditional, at mands compromise in one or more of the following areas: lines and at local variable assignments. The debugger interacts with running programs by insert- • Performance: Static compilers -
Specialising Dynamic Techniques for Implementing the Ruby Programming Language
SPECIALISING DYNAMIC TECHNIQUES FOR IMPLEMENTING THE RUBY PROGRAMMING LANGUAGE A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy in the Faculty of Engineering and Physical Sciences 2015 By Chris Seaton School of Computer Science This published copy of the thesis contains a couple of minor typographical corrections from the version deposited in the University of Manchester Library. [email protected] chrisseaton.com/phd 2 Contents List of Listings7 List of Tables9 List of Figures 11 Abstract 15 Declaration 17 Copyright 19 Acknowledgements 21 1 Introduction 23 1.1 Dynamic Programming Languages.................. 23 1.2 Idiomatic Ruby............................ 25 1.3 Research Questions.......................... 27 1.4 Implementation Work......................... 27 1.5 Contributions............................. 28 1.6 Publications.............................. 29 1.7 Thesis Structure............................ 31 2 Characteristics of Dynamic Languages 35 2.1 Ruby.................................. 35 2.2 Ruby on Rails............................. 36 2.3 Case Study: Idiomatic Ruby..................... 37 2.4 Summary............................... 49 3 3 Implementation of Dynamic Languages 51 3.1 Foundational Techniques....................... 51 3.2 Applied Techniques.......................... 59 3.3 Implementations of Ruby....................... 65 3.4 Parallelism and Concurrency..................... 72 3.5 Summary............................... 73 4 Evaluation Methodology 75 4.1 Evaluation Philosophy -
Ruby on Rails
Ruby.learn{ |stuff| } ● What is Ruby? ● What features make it interesting to me (and maybe you)? ● A quick, idiosyncratic tour of the Ruby ecosphere. Tuesday Software Lunch Talk: March 4, 2008 What is it? ● a dynamic, object-oriented, open source programming language... ● with a uniquely (but not too uniquely), expressive syntax ● dynamically or “duck” typed ● influenced by Perl, Smalltalk, Eiffel, Ada and Lisp ● has aspects of functional and imperative programming styles History ● created by Yukihiro “Matz” Matsumoto on Feb 24 1993, released to public in 1995 ● “Ruby” coined in comparison to “Perl” Philosophy (the “Ruby Way”) ● emphasize programmer needs over computer needs ● encourage good design, good APIs ● Principle of Least Surprise (POLS) – the language should behave in such a way as to minimize confusion for experienced users ● “Everything should be a simple as possible, but no simpler.” - Einstein ● orthogonality ● change at runtime is not to be feared Interesting Stuff... ● Is Not a Ruby tutorial – http://tryruby.hobix.com/ – Programming Ruby: The Pragmatic Programmer's Guide – our just google it – you want something totally different? ● http://poignantguide.net/ruby/ ● Is what I find interesting/different/well done about Ruby. Everything's an Object ● no exceptions Falsiness ● only false and nil are falsey. Not 0. Symbols ● labels ● lightweight strings with no behaviour ● often used as hash keys Blocks ● another name for a Ruby block is a “closure” ● clo-sure [kloh-zher] – noun. A function that is evaluated in an environment containing one or more bound variables. Procs ● anonymous subroutines or closures with a life of their own Adding Methods to Classes ● You can add methods to an object at runtime in several ways.. -
Conflict Resolution Via Containerless Filesystem Virtualization
Dependency Heaven: Conflict Resolution via Containerless Filesystem Virtualization Anonymous Author(s) Abstract previous installation, effectively preventing concurrent ver- Resolving dependency versioning conflicts in applications sions of that library from coexisting. The same is true for is a long-standing problem in software development and packages whose executable names does not change across deployment. Containers have become a popular way to ad- releases; unless the user renames the existing executable dress this problem, allowing programs to be distributed in a files prior to the installation of a new version it is notpos- portable fashion and to run them under strict security con- sible to keep both installations around. The problem with straints. Due to the popularity of this approach, its use has that approach is that it breaks package managers, as the re- started to extend beyond its original aim, with users often named files will not be featured in the package manager’s creating containers bundling entire Linux distributions to database and, consequently, will not be tracked anymore. run mundane executables, incurring hidden performance Further, unless executables depending on the renamed files and maintenance costs. This paper presents an alternative are modified to reflect their new path, users need todefine approach to the problem of versioning resolution applied to which executable to activate at a given time, usually through locally-installed applications, through a virtualization tool tricky management of symbolic