what network topology is used within classroom

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What are the features of each topology in the computer network topology?

What are the features of each topology in the computer network topology? Answer: network Topology 1. A star topology is composed of a centra

What if the network cannot be used after the virtual machine is installed WIN8 system?

What if the network cannot be used after the virtual machine is installed WIN8 system? Workaround: 1, please confirm the use of the latest version of the virtual machine, not to update, for example, VMware, starting from the 9.0 version to support the creation of Windows 8 system virtual machine; 2, the virtual ma

Terms: topology, architecture, and struct. What is architecture?

In the technical documentation, we often find that topology, architecture, and struct are not strictly differentiated. Sometimes we can see that a topology becomes a pure echure, and sometimes a struct becomes a pure echure.From a rigorous point of view, how should we define and distinguish them for correct use? My personal understanding is as follows: 1. the foc

What is the ioctlsocket () function used? What is the return value? How many parameters are there? What are its parameters used?

any data left. If you are in an "urgent" (out-of-band)If there is regular data before the data, the data is received in order (note that the Recv () and recvfrom () operations are not performed inObfuscation of common and out-of-band data in one call ). Argp points to a bool type, ioctlsocket ()The returned values are saved.Compatibility:This function is a subse

Redis series-1 [brief introduction]-What is it? What is it used? What are its advantages and disadvantages?

]-Qa time. If there are any mistakes in the above blog posts or you have any questions, opinions, and suggestions about this ID blog, please give me feedback in time. Thank you for reading this article. What is redis? Generally, there are several types of databases, including SQL/nsql, relational databases, and key-value databases, redis is also a key-value da

What is annotation, how to use annotation, why is annotation used, and why is annotation used

What is annotation, how to use annotation, why is annotation used, and why is annotation used Annotation Annotation can be seen as an extension template for a class/method. Each class/method i

What is 5G network slicing? What kind of cutting with a knife ?, What is 5 GB

What is 5G network slicing? What kind of cutting with a knife ?, What is 5 GB If a 4G network is used

What does the network speed mean? What does bandwidth mean? What is the download speed of 1 Mbit/s network speed? [Convert to. Baidu]

Uncover the real speed of ADSL Users who often use ADSL, do you know the real speed of ADSL? With this question, we will expand the problem step by step.Many users report that,The download speed of ADSL does not reach the nominal 512 K. After the computer accesses the network through ADSL, a download speed indicator is displayed during download. The download speed shown above

Python2.7 Chinese character encoding. What encoding format is used when Unicode is used?

array to get the character array. Let's explain the problem of the subject. I did the same experiment in the default terminal of ubuntu kylin Chinese environment, but the result is exactly the opposite to that of the subject: See no? Neither the subject nor I lie. Why? Because Unicode ("Chinese character", "gb2312 ")I think the key is to distinguish between the concept of "Byte" and "character",

What is PHP used ?, Is PHP used?

What is PHP used ?, Is PHP used? To master PHP is to use computers to develop rules. Framework tp3.2/5.2 In Structured Programming, programs are designed around the tasks to be solved. In object-oriented programming, the progra

MYSQL index type, under what circumstances index is not used, and under what circumstances is not recommended

what circumstances are indexes, but not used?Indexes do not always take effect, such as the following, which will invalidate the index : If there is or in the condition, even if some of the conditions in the index are not used ( which is why the use of or

Under what circumstances is the redis database used? What kind of database is suitable for redis

Under what circumstances is the redis database used? What kind of database is suitable for redis? Under what circumstances is the redis database us

What is a database and what is it used?

I am always talking about database learning. I remember a teacher told us to learn a course at a university.Programming LanguageIn addition to the database, and finally learn network programming, it is very easy for us to find a job after graduation. I have been learning databases for a while, but I always know nouns like ADO (ActiveX Data Object), Dao (Data Access Object), rdo (Remote Data Object), ODBC (O

In php, the exit (0) method is used to declare the exit status (successful exit or unexpected termination due to some circumstances). What are the advantages of this method? What is the difference between this and direct exit?

Just like what is the difference between the following code {code...} and {code? Humbly ask the experts for advice, just like The following code Echo 'configuration error'; exit (3); // Status 3 indicates exit due to configuration error And // Exit directly ('configuration error '); What is the difference? I would lik

What is polymorphism? What are the benefits of polymorphism? Where is polymorphism used?

What is polymorphism. Concept: The same operation acts on different objects, can have different interpretations, produce different execution results, this is polymorphism. Simply put: the reference to the base class refers to the object of the subclass. Why use polymorphism? Reason: We know that encapsulation can hide implementation details, making code modular,

What is a database and what is it used?

I am always talking about database learning. I remember a teacher told us that it is easy for us to learn a programming language, database, and network programming in college. I have studied databases for a while, but I always know nouns like ADO (ActiveXDataObject), DAO (DataAccessObject), RDO (R I am always talking about database learning. I remember a teacher told us that it

What is the server used? Can data be saved? So what is the difference with the database?

What is the server used? Can data be saved? So what is the difference with the database? For example, the user's profile picture is stored on the server. I don't know what the server

What is the role of the hook function in thinkphp? What business logic is generally used for processing?

What is the role of the hook function in thinkphp? What business logic is generally used for processing? Reply content: What is the role of the hook function in thinkphp?

What is polymorphism? Why is polymorphism used? What are the benefits?

(){ }Public Person (driver Driver ){This. Driver = driver;}Public void drive (){Driver. Run ();}Public void setdriver (driver Driver) {// using parameter polymorphism, you can buy any car in the futureThis. Driver = driver;} Public static void main (string ARGs []) {Person P = new person ();JD = new JD (); // buy a JD if you have no money at the beginningP. setdriver (JD );P. Driver ();Benz = new Benz {(); // you have money to change your car.P. setdriver (Benz );P. Driver ();}}

[Linux] in Linux, often use CTRL and other key combinations, what is commonly used and what is the meaning of it?

In Linux, you often use CTRL and other key combinations, which are commonly used and what is the meaning of it? CTRL + C ends a running program Ctrl+d end input or exit shell Ctrl+s Pause Screen Output "Lock terminal" Ctrl+q restore screen output "unlock terminal" Ctrl+l clear screen, "lowercase letter

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