Which of the following rules must every correct XML document adhere to? (Choose 2)
                                
A.It has to be well-formed.
B.It has to be valid.
C.It has to be associated to a DT
D.D. It may only contain UTF-8 encoded characters.
                              
Click To Show Ans:A,B
                        

                                
Given the following code, what is correct?
function f(stdClass &$x = NULL) { $x = 42;
}
$z = new stdClass;
f($z);
var_dump($z);
                                
A.Error: Typehints cannot be NULL
B.Error: Typehints cannot be references
C.Result is NULL
D.Result is object of type stdClass
E.Result is 42
                              
Click To Show Ans:E
                        

                                
The function mysqli_affected_rows() can be used to perform which of the following actions? (Choose
2)
                                
A.get the number of rows that are affected by SELECT statements
B.get the number of rows that are affected by UPDATE statements
C.get the number of rows that are affected by INSERT statements
D.get the number of rows in a result set
E.get the numbers of rows that are affected after committing a transaction
using COMMIT
                              
Click To Show Ans:B,C
                        

                                
How can a SimpleXML object be converted to a DOM object?
                                
A.dom_import_simplexml()
B.dom_export_simplexml()
C.simplexml_import_dom()
D.SimpleXML2Dom()
E.None of the above.
                              
Click To Show Ans:A
                        

                                
REST is a(n) ...
                                
A.Web service protocol similar to SOAP with a strict XML schema.
B.Principle to exchange information using XML and HTTP.
C.API to get information from social networking sites.
                              
Click To Show Ans:B