networking interview questions and answers

]; Array[i] = t; } return array;}The above code contains the classic shuffle algorithm fisher-yates shuffle algorithm, namely the shuffle function. Please refer to my other blog for details.Operation Result:From the results, this method is also feasible.Fine think or there is a problem, for a larger array, no matter how efficient your shuffle algorithm (even if the above fisher-yates algorithm time complexity is O (n)), to random the entire array is still very large engineering it.S

. Synchronize the data between the main library and the library, and then repeat the action again13. Use a single command to turn off all services except SSHD, Crond, network, Rsyslog services (no power-on automatic)Method One:[[Email protected]~]# for name in ' Chkconfig–list|grep 3:on|awk ' {print '} ' |grep-ev "sshd|crond|rsyslog|network" ';d och Kconfig $name Off;done[Email protected]~]# chkconfig–list|grep 3:onCrond 0:off 1:off 2:on 3:on 4:on 5:on 6:offNetwork 0:off 1:off 2:on 3:on 4:on 5:o

This section also contains data structures, algorithms, and an array of interview questionsThe difference between List, Set, Map, and Queue (answer)List is an ordered set that allows elements to be duplicated. Some of its implementations can provide constant access time based on subscript values, but this is not guaranteed by the List interface. Set is an unordered collection.The poll () method and the Remove () method differ?Both poll () and remove (

(The question comes fromV_july_vSorting, Microsoft and other data structures + algorithm interview 100 questions, July blogHttp://blog.csdn.net/v_JULY_v) Question: enter a binary search tree to convert the tree to its image,That is, in the converted Binary Search Tree, the left subtree has more nodes than the right subtree.UseRecursionAndLoopTwo methods are used to convert the image of the tree.For example

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 ("

Sian O M engineer interview questions 1. What are the functions of the following Linux commands? Init 0 Chkconfig -- level 3 sendmail on Tar-czvf test.tar.gz ./ Chown-R www: www/usr/local/apache/htdocs/ Ln-s/data2/log/var/log/sina_log/ [-D/data1/logs] mv/data1/logs/data1/logs. old Rsync 192.168.0.200: software.tar.gz. Umount/data0 Rpm-ivh sina. rpm Rpm-qf/bin/ls 2. What software does a Linux Server need t

IOS classic interview Summary-memory management, ios questions-memory managementI made a summary based on my own situation. The answer is my summary. If you have any bad answers, I hope to criticize, correct, and communicate. Thank you!Memory Management1. What is ARC?ARC is the automatic reference count of automatic reference counting, which is automatically adde

My friend submitted my resume for me. By the way, I felt that my resume was not concise enough. I deleted several project experiences and simplified the introduction of all projects. What's worse, I changed my undergraduate school in a confused way, (-_-) B! So I started a PHP job interview with a confidence value of 0. Really, PHP has never been learned, and I naturally won't, and he, this is phper, doesn't even, ('shanghai ('﹏′) PS: all the

Recently saw some simple face test, found that there are a few things wrong ah.1. In the following example usingSystem; classA { PublicA () {printfields (); } Public Virtual voidPrintfields () {}}classb:a {intx=1; inty; PublicB () {y=-1; } Public Override voidPrintfields () {Console.WriteLine ("X={0},y={1}", x, y); }}What output is generated when you use new B () to create an instance of B?The answers on the internet are: x=1,y=0

C ++ programmers apply for common interview questions in-depth analysis 3-Linux general technology-Linux technology and application information, the following is to read details. Question 5: Write a function to shift n loops of a char string to the right. For example, if "abcdefghi" is n = 2, it should be "hiabcdefgh" after the shift" The function header is as follows: // PStr is a pointer to a string end