Php Networking MCQs with Explanations

DNS records are checked based on the supplied host value and optional DNS resource record type, returning TRUE if any records are located and FALSE otherwise.

Example- getservbyname(“http”,”tcp”) will return 80.

The fsockopen() function establishes a connection to the resource designated by target on port.

mail(string to, string subject, string message,) using this you can send any mail.

They are- SMTP, sendmail_from, sendmail_path, smtp_port, mail.force_extra_parameters.

Call the Mail_Mime object’s addAttachment() method passing in the attachment name and extension.

dns_get_record() is the correct answer to “Which one of the following function is used to return an array consisting of various DNS resource records pertinent to a specific domain”. This question is standard in competitive examination syllabi for Php Networking.

getmxrr() is the correct answer to “Which one of the following function is used to retrieve the MX records for the domain specified by hostname”. This question is standard in competitive examination syllabi for Php Networking.

80 is the correct answer to “What is the default port number of HTTP’s”. This question is standard in competitive examination syllabi for Php Networking.

stream_wrapper_register is the correct answer to “What function can you use to create your own streams using the PHP stream wrappers and register them within PHP”. This question is standard in competitive examination syllabi for Php Networking.

True is the correct answer to “The windows version of PHP has built-in support for the FTP extension”. This question is standard in competitive examination syllabi for Php Networking.

ftp_mkdir() is the correct answer to “The ftp_mkdir() function creates a directory on the FTP server.”. This question is standard in competitive examination syllabi for Php Networking.

Option 3 and 4 is the correct answer to “Which of the following operations cannot be performed using the standard ftp:// stream wrapper? 1. Reading a file 2. Writing a file 3. Establishing a stateful connection and changing directories interactively 4. Creating a new directory”. This question is standard in competitive examination syllabi for Php Networking.

The port associated with the TCP service called “FTP” is the correct answer to “What will the following script do? <?php echo getservbyname ( 'ftp', 'tcp' ) ; ?>”. This question is standard in competitive examination syllabi for Php Networking.

ftp_size() is the correct answer to “The ftp_size() function returns the size of a specified file on the FTP server.”. This question is standard in competitive examination syllabi for Php Networking.

stream_set_timeout is the correct answer to “When dealing with timeout values in sockets, the connection timeout can be changed independently of the read/write time out. Which function must be used for this purpose”. This question is standard in competitive examination syllabi for Php Networking.

pdc is the correct answer to “Which of the following network transports doesn’t PHP support”. This question is standard in competitive examination syllabi for Php Networking.

All of above is the correct answer to “The FTP functions are used to ....... files from file servers.”. This question is standard in competitive examination syllabi for Php Networking.

Option 2 and 5 is the correct answer to “Which of the following are valid PHP stream transports? 1. http 2. STDIO 3. ftp 4. STDOUT 5. stream”. This question is standard in competitive examination syllabi for Php Networking.