what is 1 1 basic

Simply put: Layer-1 switchOnly physical layer protocols are supported (one phone-controlled switch can be called ???)L2 SwitchSupports physical layer and data link layer protocols, such as Ethernet switches.L3 SwitchSupports physical layer, data link layer, and network layer protocols, such as some switches with routing functions. In terms of the ISO/OSI hierarchy, switches can be divided into L2 switches and L3 switches. A layer-2 Switch refer

Key-Value Pair storage (1): What is key-Value Pair Storage? Why? Author: Emmanuel Goossaert Original article: codecapsule.com In this article, I will begin with a short description of what a key-value pair is. Then I will explain some reasons for this project, and finally I

What about the application pool? This is a brand new concept of Microsoft: The application pool is a configuration that links one or more applications to one or more worker processes. Because applications in the application pool are separated from other applications by working process boundaries, applications in an application pool will not be affected by problem

. Attached: Ncodegenerate.zip Document: Document Ncodegenerate SeriesArticle: I. What is ncodegenerate? Ii. Code Generation Tool-ncodegenerate tutorial (1) traverse all tables in the database III. Code Generation Tool-ncodegenerate tutorial (2) code Generation Tool-ncodegenerate tutorial (3) generate code to a file. 5. Code Generation Tool-ncodegenerat

1. Basic layout of memory and virtual memory When talking about virtual storage, You can say a few things. For 32-bit systems, most operating systems will move a portion of the 4 GB memory space to the kernel for use.ProgramYou cannot directly access this section of memory, which is called the kernel space. By default, Windows allocates 2 GB of High-address s

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 6 namespaceConsoleApplication17 {8 classClass19 {Ten Static voidMain (string[] arge) One { AConsole.Write ("What time is the old wolf old Wolf? "); - strings =console.readline (); - inthour =Convert.ToInt32 (s); the -

question: What is the ability of JS to speak such a language? (Running platform)A: Now the JS language can be run in the browser (js If it is running on the browser can not operate the disk file), you can also run NodeJs on the server side ( JS can manipulate files on the server side). question:JS is able to manipulat

web| Design | problems 3.2 Who are web users One of the common mistakes a web designer makes is to simplify or completely ignore the user's abilities and desires. Sometimes the idea of designing a Web site for a particular browser or for a specific bandwidth completely replaces any serious consideration for the user. Do not design a website for n e t s c a p E, to design a website for people who use the N e t c a p E browser. Keep in mind the followin

Android study notes 23. Service component entry (1). What is Service ?, Android. serviceWhat is Service?I. Service1. Service IntroductionThe Service is one of the four Android components. Similar to the Activity component, the Service represents executable programs and has i

, images, videos, animations, 3D, and panels used to place controls and content. These "self-owned controls" provide construction blocks for the development of next-generation user experience. Microsoft introduces the Windows Presentation Foundation and The XAML, a markup language that publicly represents the Windows application user interface, developers and designers can use more tools to build and reuse the UI. For Web developers, XAML provides a familiar UI description mode. XAML also separa

, 5 mainly Israeli m-system, Singapore track, Netac USB, Lowen Ipan and South Korea's flashdriver. The true acquisition of the U Disk Basic invention patent is China Netac Company. But the first U-disk I used in 2010 was Kingston Kingston, and everyone said it was a good brand, about twenty or thirty bucks.4. Mobile HDDIn other words, the first time to see the mobile drive

What is node. js?Nodejs is a JavaScript toolkit for writing high-performance Web servers (for JS development service-side programs)Single-threaded, asynchronous, event-drivenFeatures: fast, memory-consumingA millions concurrency test on the web, which consumes 16G of memory without optimization, is due to the asynchron

SourceTable {get; set ;} Iii. Assembly Example: Reference the Assembly in NCodeGenerate. As long as it is converted to an empty string, NCodeGenerate will automatically process the assembly. Iv. Import Namespace Example: The reference of the corresponding namespace in NCodeGenerate is converted into the following code: @ Using NCodeGenerate. DBSchema; V. script For example: The Code in all scripts in th

Scalable Vector Graphics(Scalable Vector Graphics,SVGIs based on the Extensible Markup Language (XML), used to describe a two-dimensional vector graphics format. SVG is an open standard developed by W3C. Directory[Hide] 1. SVG Overview 1.1 SVG Basic 1.2 SVG Tiny 2. SVG technical details 3. Standard Develop

. They are actually views , not basic tables, so you will not be able to see any files associated with them. There is a readable table in Information_schema! Let's see if we can read the auto_increment from the inside! Select the information_schema database: use Information_schema; Query (inside theinformation_schema database) for all the tables in thetable : Select from tables; OK all the se

WMI has been around for more than 20 years, but many people are not familiar with it. I know it is very powerful, but I don't know where it comes from, how it works, and what scope of use it is? Now let me talk about my understanding... WMI has a set of APIs. Whether we use VBscript, powershell script, or C # To access the WMI class library, it