CCNA Experiment 19 static and default routesEnvironment: Windows XP , Packet Tracert 5.3Purpose: To understand the use of static routes and default routesDescriptionstatic routing refers to routing information that is manually configured by the network administrator. When the topology of the network or the state of the link changes, it is necessary to manually modify the relevant static routing information in the router. Static routing information is
Tags: cisco CCNA eigrpEIGRPin order to enhance the internal Gateway routing protocol, it can also be called the enhanced Internal Gateway routing protocol. EIGRPcombining the link state and the distance vector type routing protocolCiscoproprietary protocol using a dispersion correction algorithm (DUAL) for fast convergence, you can reduce the bandwidth footprint by not sending periodic routing update information, whileEIGRPThere are three tables: the
Tags: cisco CCNA VLANVLANthe Chinese name is"Virtual local Area network". is a set of logical devices and users, these devices and users are not subject to physical location constraints, can be based on functions, departments and applications and other factors to organize them, communication with each other as if they are in the same network segment, hence the name of the virtual local area network. VLANwork inOSIthe Reference Model2Layer and Section3
Tags: Cisco CCNA device Basic Configuration1. Define a host name for the routerrouter>enable \ \ Enter Privileged modeRouter#configure terminal \ \ Enter global configuration modeRouter (config) #hostname R1 \ \ Change the router nameR1 (config) #The default router name is "Router", which can be used to differentiate the device from the network for easy management.2. Turn off Domain name resolutionR1 (config) #no IP domain-lookupBy default, when an ad
Tags: cisco CCNA RIPRIP (Routing information Protocol) routing protocol is a kind of routing protocol which has been widely used in small and medium networks. RIP uses UDP packets to exchange routing information with a UDP port number of 520. Normally the RIPV1 message is broadcast, while the RIPV2 message is a group broadcast message, and the multicast address is 224.0.0.9. RIP sends an update message out every 30 seconds. If the device does not rece
Just translated the box2d2.3.0 version of the English user's guide, although the original text only 70 pages, not the kind of hundreds of pages of "magnum opus", but still feel the harvest quite abundant. Here also share some of my personal summary of some of the skills and experience.
I think that before translating the original textbook, the translator should be more to understand the technical details of the te
statement:for (initial condition; cyclic condition; state change){Loop body}(3) Problem type: exhaustive, iterative(4) Two keywords: break and Continue(5) If you want to output the value of a parameter: the value of the output is "+a+" and "+b6. Array:The definition of the array: the new Array (), whose length is dynamically variable, which can be placed in any type of element.Assignment of array elements: a[0]=123;a[1]= "Hello";Array value: A[i];Array properties: a.length; Number of array elem
, although the protection mechanism of some stacks was blocked (the method that was found on the net), but never compiled. Had to do in the experimental building buffer an experiment, the experiment also success rate. Although the entire experimental process is based on the steps of the lab building, it also complements some of the important knowledge that is available online. Through this practice, the "stack" has a deeper understanding, but also more familiar with the buffer overflow attack Th
testing the new algorithm.2. Using Condition variablesYou can use conditional variables If your code is not process-independent, or if you want to have a mechanism that can be used for all situations to control an attribute.This is easier than using UID, just to create a global variable as a conditional selector switch:
If the variable is 0, the code on one of the branches is used;
Otherwise, select a different branch.
Control mode: Some kind of interface, or debugger.3. Usage
Textbook Page 44:3-9, no redundancy of the source can also be compressed? Why? Answer: No lossless compression, can be lossy compression.3-10, not related to the source can also be compressed? Why?Answer: At least can be lossy compression, if there is redundancy (the source of non-equal probability distribution) can also lossless compression.3-12, equal probability distribution of the source can also be compressed? Why? Can you give me an example? Ans
1, the whole book read, the contents of the book is very detailed, examples are easy to understand, or do not know how to compile a software?2, most of us, do not really write a software, can not be as clear as the company team, then what kind of team model for us?3, behind each software has a huge database, how to add data to the software?4, the mobile phone app interface is very neat, beautiful, how to create an app interface?5, I am interested in testing, how to test software?Problems not sol
day to complete a quantitative task, and finally become a complete finished product. When I read this chapter, I found that I still for agile process this thing still half understand, I first say my understanding, I think agile process should be said to be based on the actual situation, sustainable, flexible way of cooperation. The process of agile process is just like the divide and conquer algorithm in our algorithm, the very big thing, cut it into a lot of small pieces, a big problem into a
tutorial, let me and Java pass ...Fortunately, in the unconsciously from a remote directory, click on the Eclipse icon, everything is shaking, greatly different, this is what I want java!Warning: Beginners who do not have the concept of gui,oop, you will go astray if you learn Java Basic Grammar from the practice of writing GUI interface code. Beginners, highly recommended to learn from GUI programmingThe GUI most embodies the most complex part of OOP thought, for beginners who do not understan
simple, but the main features of multi-resolution analysis are all possessed. By learning Haar wavelet, the intuitionistic concept of multi-resolution analysis can be established. The fifth chapter introduces the multi-resolution analysis. The properties of multi-resolution analysis are given. For the sixth chapter constructs the Daubechies wavelet to manufacture many handy tools. The sixth chapter constructs the Daubechies wavelet. The seventh chapter is The application of Daubechies wavelet.
and summarized, the new version of the syllabus of the content has focused on refinement and deepening. By reading this book, candidates can master the knowledge of exam syllabus, grasp the key points and difficulties of examination, and be familiar with the test method, the form of examination questions, the depth and breadth of the questions, the distribution of the content, the methods and skills of solving the problem.(2) The System Architect Exam Test Center breakthrough, Case analysis, te
Microsoft. NET Framework English Textbook Series
In the 21st century, especially as China joins the WTO, international competition in the information industry will become more intense. The development speed of national informatization and the international competitiveness of the information industry will ultimately depend onProgramThe quality and quantity of technical personnel. An important measure to introduce excellent teaching materials for fore
Introduction to algorithms: An Introduction to Algorithms (4 versions) -Thomas H. cormen,charles E. LeisersonThe book is the MIT computer professional classical algorithm textbooks, comprehensive content, language popular, very suitable for beginners to learnIntroductory combinatorics = Combinatorial Math (5 versions) -Richard A. BrualdiThis book systematically expounds the foundation, theory, methods and examples of combinatorial mathematics. Focusing on the concept and thought of combinatorial
; // describes the conditions that the data structure and parameters should meet before the operation executes, and if not, the operation fails and returns an error message. operation Result:operation result description > // The change of data structure after normal operation and the result should be returned. ...Basic operation name (parameter table)Initial conditions:initial condition description >operation Result:operation result description >} ADT abstract data type nameCases:Abstract data t
213Exercise 213
The 11th chapter of the comprehensive case of the spirit of the detailed and deployment 21411.1 Client 21511.1.1 Code Structure 21511.1.2 Function Module 22111.2 Service Side 22911.2.1 Service-side functional Structure 22911.2.2 data parsing and control flow 23111.3 Test Environment Build 23211.3.1 Service-side test environment build 23211.3.2 Android Studio Publishing Client project 23811.4 Section 239 of this chapterExercise 240
12th Android new technologies and Ap
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