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reasonable allocation of server resources Cpu:apache MySQL in high-load environment, disk IO read and write too much, will certainly occupy a lot of resources, it is inevitable that the CPU occupies too high. Memory: Memory library, database software hard disk: file web2.0 architecture Select MongoDB+redis or mysql+Memcached is a better combination, the logic is simple to use NoSQL current main web site architect
Summary of the latest PHP classic interview questions in 2017 (previous article), and last article in 2017
1. Difference Between Double quotation marks and single quotation marks
Double quotation marks are used to interpret variables.
Insert single quotes in double quotes. If there is a variable in single quotes, the variable is interpreted.
A variable name in double quotation marks must be followed
: socket, completion port, asynchronous I/O, thread and synchronization, database, and so on.If the target job is a primary programmer: system architecture, software engineering, design mode, code management, version control, script related knowledge, etc.
//////////////////////////////////////// /////////////////////////////////////////Interview Questions from a
Interview Questions:. Net remoting
1. What's a Windows Process?
It's an application that's running and had been allocated memory.
2. What's typical about a Windows Process in regards to memory allocation?
Each process is allocated its own block of available Ram space, no process can access another process 'Code or data. if the process crashes, it dies alone without taking the entire OS or a bunch of
Hibernate Interview Questions and answersEssence-a large collection of Hibernate Interview Questions and answers1. What is the matching relationship between the relational data model and the Object Model (multiple choice) in general)A) table corresponds to Class B) record corresponding object C) Table field corresponds
[Finishing]c#. NET common interview questions with Answer (ZT) A friend who is looking for a job may use it. I am not too understand resistance, last week a friend came to me to find a job he tidied up, so I only responsible for posts, the answer to the question to you. --------1. What does object-oriented thinking mainly include? 1 Inherit polymorphic Package//--------2. What is a user Control 2 user contr
Cisco network engineer interview questions
23 Cisco Network interview questions for Cisco senior after-sales network engineers
1. In the current 6509 and 7609, The sup720 switched bandwidth to 720 GB. Can it be said that 7609/6509 can replace part of the GSR status?
A: Some functions are acceptable. Previously, GSR was
Baidu Home Login 2017 the most complete 30 Android interview questions, how will you answer?Wing Technologyhundred 03-10 02:32 "Three gold four silver" is also the annual job-hopping season, I believe that a lot of Android programmers began to get ready. However, in the face of the interviewer's question, how will you answer?First, how to understand the relationship between the three Activity,view,window?T
This program code has the "IP address forgery" vulnerability. how can this problem be solved? PHP interview questions, including php Basics, mysql, network, and front-end knowledge
Php Basics
1. what are the output results of the following php code?$ I = 10;
$ N = $ I ++;
Echo $ n, $ I ++, ++ $ I
2. what is the difference between include and require?3. the following code is used to determine whether the
Echo is a language structure and has no return value. The print function is basically the same as echo. The difference is that print is a function and has a return value. print_r is a recursive print, which is used to output the PHP interview questions and answer 1 of the array object.
1. use PHP to print the previous day in the format of 22:21:21
// Echo date ('Y-m-d H: I: S', time ()-60*60*24Echo date ("
I haven't learned the C language for some days. I watched windows the other day.ProgramDuring the design, find in VC 6 according to win's architecture
The following sectionCodeAnd found that their C language skills are really poor. The Code is the C code I see. So far, I can only understand it;
It is estimated that it will be easy to understand.
View code
Declare_handle (HDC );# DefineDeclare_handle (name)StructName ##__{IntUnused;};TypedefS
Sp. Net interview questions
(To original address http://blog.sina.com.cn/s/blog_524c848901009e7b.html ~ Type = v5_one label = rela_nextarticle author Li Yang's blog http://blog.sina.com.cn/liiyang)
1. Briefly describe the access permissions of private, protected, public, and internal modifiers.
A. Private: Private Members can be accessed within the class.
Protected: protects members, which can be accesse
JSP enterprise interview questions (4)5-1. Briefly describe the relationship between Servlet and JSP.
JSP is implemented in another way. servlet is an earlier version of JSP. In JSP, it focuses more on the page performance, while in servlet, it focuses more on the implementation of business logic.
Therefore, JSP is preferred when the page display effect is complex. Or htmlCodeJSP can be selected when Ja
. At the same time if there are multiple threads accessing Hashmap,collections.synchronizedmap () can be substituted, generally hashmap more flexible.10. Why is the vector considered to be obsolete or unofficially deprecated? Or why we should always use ArrayList instead of vectors.You should use ArrayList instead of vectors because by default you are non-synchronous, vectors synchronize each method, you almost never do that, and usually you want to synchronize the entire sequence of operations.
constructor cannot be a virtual function. To construct an object, you must know exactly what to construct. Otherwise, you cannot construct an object.The Destructor can be pure virtual functions.10. Problems Related to the copy constructor, such as deep copy, shallow copy, and temporary objects.Deep copy means that the resources and pointers are copied, while the light copy only copies the pointers and does not copy the resources.In this way, the two pointers direct to the same resource, causing
constructor cannot be a virtual function. To construct an object, you must know exactly what to construct. Otherwise, you cannot construct an object.The Destructor can be pure virtual functions.10. Problems Related to the copy constructor, such as deep copy, shallow copy, and temporary objects.Deep copy means that the resources and pointers are copied, while the light copy only copies the pointers and does not copy the resources.In this way, the two pointers direct to the same resource, causing
?A constructor cannot be a virtual function. To construct an object, you must know exactly what to construct. Otherwise, you cannot construct an object.The Destructor can be pure virtual functions.
10. Problems Related to the copy constructor, such as deep copy, shortest copy, and temporary objects.Deep copy means that the resources and pointers are copied, while the light copy only copies the pointers and does not copy the resources.In this way, the two pointers direct to the same resource, c
virtual?A constructor cannot be a virtual function. To construct an object, you must know exactly what to construct. Otherwise, you cannot construct an object.The Destructor can be pure virtual functions.
10. Problems Related to the copy constructor, such as deep copy, shortest copy, and temporary objects.Deep copy means that the resources and pointers are copied, while the light copy only copies the pointers and does not copy the resources.In this way, the two pointers direct to the same resou
Java programmer interview questions (86-115)
86. In Struts 2, how does Action obtain the data that the user inputs from the page, and how does it transmit its own data to the view?
A: There are three ways for Action to retrieve data from the page:
1) accept parameters through the Action attribute
2) obtain parameters through the domain model
3) ModelDriven
)
Action saves data to the Value Stack. View
Interview question 11. Use PHP to print the time format of the previous day in the format of 22:21:212. Differences between echo (), print (), and print_r ()3. templates that can be used to split HTML and PHP4. How to Implement PHP and JSP interaction?5. What tools are used for version control?6. How to Implement string flip?7. Optimize the MYSQL database.8. Talk about Transaction Processing9. How to achieve maximum load using apache + mysql + php10.
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