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Yogesh Khurana
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Please share the exact difference between subnet mask and wildcard mask? And why we using wildcard mask in routers?
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Yogesh Khurana
Subnet mask tells the number of network bits and number of host bits in an IP. Number of ON bits = number of network bits Number of OFF bits= number of host bits   Wild Card mask is used to match...

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  1. in Filesystem.php line 111
  2. at HandleExceptions->handleError(2, 'file_put_contents(/var/www/html/storage/framework/sessions/H4BzLcJeoVYnFIYkLHdGlJZ9ZxOCOjXUeQIcSiUW): failed to open stream: No space left on device', '/var/www/html/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php', 111, array('path' => '/var/www/html/storage/framework/sessions/H4BzLcJeoVYnFIYkLHdGlJZ9ZxOCOjXUeQIcSiUW', 'contents' => 'a:3:{s:6:"_token";s:40:"HuSCpqk6E6ZvmLAgM4xxF69WRbu8A5dPBKyAes8q";s:9:"_previous";a:1:{s:3:"url";s:52:"http://www.networkbulls.com/profile/yogesh-khurana-1";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 'lock' => true))
  3. at file_put_contents('/var/www/html/storage/framework/sessions/H4BzLcJeoVYnFIYkLHdGlJZ9ZxOCOjXUeQIcSiUW', 'a:3:{s:6:"_token";s:40:"HuSCpqk6E6ZvmLAgM4xxF69WRbu8A5dPBKyAes8q";s:9:"_previous";a:1:{s:3:"url";s:52:"http://www.networkbulls.com/profile/yogesh-khurana-1";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 2) in Filesystem.php line 111
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  7. at StartSession->terminate(object(Request), object(Response)) in Kernel.php line 216
  8. at Kernel->terminateMiddleware(object(Request), object(Response)) in Kernel.php line 187
  9. at Kernel->terminate(object(Request), object(Response)) in index.php line 59
  10. at require_once('/var/www/html/public/index.php') in index.php line 20