Zend
200-710 · Question #4
Consider 3 PHP files that are called asynchronously via XMLHttpRequest: // s1.php session_start(); sleep(1); // s2.php session_start(); sleep(2); // s3.php session_start(); sleep(3); Which of the foll
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Question
Consider 3 PHP files that are called asynchronously via XMLHttpRequest:
// s1.php
session_start();
sleep(1);
// s2.php
session_start();
sleep(2);
// s3.php
session_start();
sleep(3);
Which of the following statements is true? (Choose two.)
Options
- AThe total execution time for all 3 requests will be the maximum of the longest sleep() call
- BThe requests may be processed out of order
- CThe requests are guaranteed to be executed in order
- DConcurrent requests will be blocked until the session lock is released
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