capm test questions

, no classmates can give up not answer." Answer:Simulation Environment:Mkdir-p/oldboy/testTouch A.txt/oldboyTouch B.txt/oldboy/testecho "Oldboy" >a.shecho "Oldgirl" >b.shFrench one: SEDSed-i "S#oldboy#oldgirl#g"/oldboy/*.txtSed-i "S#oldboy#oldgirl#g" ' find/oldboy/-type f-name ' *.sh 'Sed-i "S#oldboy#oldgirl#g" $ (fing/oldboy/-type f-name "*.sh")Law II: Find+|xargsfind/oldboy/-type f-name "*.sh" |xargs sed-i "S#oldboy#oldgirl#g"find/oldboy/-type f-name "*.sh"-exec sed-i "s#oldboy#oldgirl#g {} \;

type variables? Volatile has two main functions: 1. Avoid command rearrangement 2. Visibility guarantees. For example, the JVM or JIT will reorder the statements for better performance, but the volatile type variable will not be reordered with other statements even if there are no synchronized blocks. Volatile provides happens-before guarantees that a thread's modifications can be visible to other threads. In some cases, volatile can also provide atomicity, such as reading 64-bit data type

Google search is expected to test all the questions on its own and occasionally ask related questions when recruiting linux engineers! Hope to bring you some convenience 1. How can I log on to the system and disable history operation commands?2. ssh limits ip login and requires ssh Login. What should I do?3. Which of the following commands can be used to display

want to do things in activity, we can execute it immediately, pendingintent equivalent to intent executed the wrapper, we don't necessarily have to execute it immediately, we will wrap it Passed to other activity or application. At this point, get to pendingintent application can according to the inside of the intent to know the intention of the issuer, choose volley or continue to pass or execute.Pendingintent is a intent that can be executed under certain conditions, and its advantage over in

Analysis of ZCTF's PWN problem,PWN100This problem and SCTF pwn100 play is the same, the difference lies in the previous several restrictions. Exit (0) cannot be triggered. Otherwise, the overflow will not be realized.The canary is still triggered to leak out the in-memory flag.Note1This ZCTF problem is a series out, the following three questions are the same program.First look at the procedure of the approximate process, this is a notepad program.1.Ne

203.81.19.1Host/dig/nslookup checking Domain name resolutiond Internet Router (configuration and hardware) and ISP line issuesLog in to the router, check the superior line, call the ISP technology.e-Troubleshooting: IP address Conflicts, other people can surf the Internet, IP address conflict, ARP virus, core switch is broken,Switch loops (see logs)(b) Large area on the net:Router, ISP, core switch, ARP virus, core switch broken, gateway address occupied, switch loop2. How do I troubleshoot a s

entire system?2. High concurrency, how our system supports a large number of requests3. How the cluster synchronizes session state4. Principle of Load Balancing5. If there is a particularly large amount of traffic to the database, how to do optimization (db design, dbio,sql optimization, Java optimization)6. If there is a large area of concurrency, on the basis of not increasing the server, how to resolve the server response is not timely problems. "7. If your project has a performance bottlene

In order to prepare for the interview, so on the internet to collect some in-depth study interview questions, as well as their own interview process encountered some problems. I interviewed for myself: 1 SVM Derivation, SVM Multiple classification method (1 to 1, 1 to many, Many-to-many), LR loss funtion derivation, decision tree meaning.2 solve the fitting method. L1 L2 Detailed introduction to solve the gradient explosion/dispersion method3 common C

PHP (as the current mainstream development language) test questions 1. In PHP (now the mainstream development language), the name of the current script (not including the path and query string) is recorded in the predefined variable (1), while the URL linked to the current page is recorded in the predefined variable (2).2. Execution of program segments The output (3).3. In HTTP 1.0, the meaning of status c

title copy file CPWe copy the file to an existing directory of this file will be promptedThat's because we have the CP command default CP-I hintMethod One: Use absolute pathWe all know that the commands we use are basically storing binaries in the/bin/directory, which is what we often call commands.Method Two: That is to cancel our CP command aliasUalias CPMethod Three:\CP, put a crowbar in front of the order. This crowbar escape means to remove some special meaning from the vest.11. View only

do data analysis or ETL work, so the interview must be asked clearly.5. Data Analysis EngineerFrom the title is also seen mainly to do some data statistical analysis of the work, to be honest, before modeling a very important job is to need you to have a full understanding of their data, but the general machine learning post can do data analysis work, or deal with a problem too many steps really troublesome. If you're ready, you can start with some data analysis statistics and visualizations fr

variables, constants, Functions * PHP built-in functions are also different, Use less time complexity. Example Isset () and array_key_exists () differences * Avoid using the PHP Magic function * Disable the @ ERROR suppressor, resulting in additional overhead * Reasonable use of memory, using unset () to release unused memory in a timely manner * Use regular Expressions sparingly * avoid doing operations within loops for ($i =0;strlen ($STR), $i + +) {} * reduce compute-intensive business (PHP

1.5 ( min )run the following program's output on the command line usingJava Test 5 4:public class test{publicstatic void Main (string[] args) {System.out.println (args[1]); }}(A) 0 (B) 5 (C) compilation error (D) 4Answer Selection D650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/77/04/wKioL1ZhHWDRO805AAApeJUl4D0544.png "style=" float: none; "title=" 1.png "alt=" Wkiol1zhhwdro805aaapejul4d0544.png

variables, constants, Functions * PHP built-in functions are also different, Use less time complexity. Example Isset () and array_key_exists () differences * Avoid using the PHP Magic function * Disable the @ ERROR suppressor, which can incur additional overhead * Reasonable use of memory, using unset () to release unused memory in a timely manner * use as little as possible Regular Expressions * Avoid doing operations within loops for ($i =0;strlen ($STR), $i + +) {} * reduce compute-intensive

pointers and strong reference pointers for AndroidA basic concept has been tested6. Android Touch ProcessThe main research dispatchtouchevent, Ontouchevent, onintercepttouchevent7. Intentservice and AidlThe difference between intentservice and ordinary service, interprocess communication8. Layout SurveyLinearLayout layout_weight Meaning, the difference between AlignTop and alignparenttop in Framelayout9. The view's drawing processStudy the methods of Onmeasure (especially setmeasureddimension),

(1) Struct{Char T: 4;Char K: 4;Unsigned short I: 8;Unsigned long m;}Sizeof (A) =? (Boundary alignment is not considered) The answer is 7. Why? Test on TC is 6, test on vc2005 is 8, I think TC should not consider the boundary, vs2005 considers the boundary alignment, but how does it come from 7? The vs2005 test is as follows: // Sizeof_struct.cpp: defin

Test instructions: Constructs the data with the most effective relaxation times for the Dijkstra single source shortest path algorithm ...Test instructions: Construction, in other words, is to update the late path is shorter than the path to update earlier. Since all points are updated once, a chain is formed according to the update time, that is, the shortest path to the last point,Note: The more late The

. Sample Input About380Sample OutputNo370 371AuthorLCYSourceC language Programming exercises (II.)recommendjgshiningTopic Description: In a given interval, to meet the problem conditions (Narcissus number) output! 1#include 2#include 3#include 4 using namespacestd;5 BOOLSXH (intN)6 {7 intK,r =0, M =N;8 9 while(N >0 )Ten { OneK = n%Ten; AR + = k*k*K; -N/=Ten; - } the returnr = =m; - } - intMain () - { + BOOLFlag; - intx, y, I; + while(cin>>x>>y) A { atFlag =0

PHP entry-level coder self-test questions Description: This test is 100 points, involving the Web (PHP direction) of the comprehensive knowledge, 90 pass. By:pig 2009.07.14 This question has been sent once, now tidy up, re-sent up. ------------------------------------- One, basic PHP1. Try to explain the difference between Echo and Print,require and include. (3

)//the set color is no longer scanned. { intmaxindex=0, minindex=99999; for(Auto J=collect.begin (); J!=collect.end (); j + +){ if((*J) .second>maxindex) Maxindex=(*j). Second; if((*J) .secondminindex) Minindex=(*j). Second; Mintemp=maxindex-minindex+1; } if(mintempminnum) Minnum=mintemp; } } returnMinnum;}intMain () {intarray1[]={0,1,2,6,7,4,1,1,1,1,2,6,7,2,2,0}; Vectorint> v1 (array1,array1+ -); cout6) Endl; ret