CDAC Advanced Web Programming Practice Questions

41. Which attribute needs to be changed to make elements invisible?

A. visibilty 

B. visible 

C. invisibility 

D. invisible 

42. What is the alternate name for Java script?

A. LimeScript 

B. ECMScript 

C. Both a and b 

D. ECMAScript 

43. What PHP stands for?

A. Hypertext Preprocessor 

B. Pre Hypertext Processor 

C. Pre Hyper Processor 

D. Pre Hypertext Process 

44. How does the identity operator === compare two values?

A. It converts them to a common compatible data type and then compares the resulting values 

B. It returns True only if they are both of the same type and value 

C. If the two values are strings, it performs a lexical comparison 

D. It bases its comparison on the C strcmp function exclusively 

45. Under what circumstance is it impossible to assign a default value to a parameter while declaring a
function?

A. When the parameter is Boolean 

B. When the function is being declared as a member of a class 

C. When the parameter is being declared as passed by reference 

D. When the function contains only one parameter 

46. Variables always start with a _________ in PHP

A. Pond-sign 

B. Yen-sign 

C. Dollar-sign 

D. Euro-sign 

47. Which of the following is not valid PHP code?

A. $_10 

B. ${“MyVar”} 

C. &$something 

D. $10_somethings 

48. What is the difference between print() and echo()?

A. print() can be used as part of an expression, while echo() can’t 

B. echo() can be used as part of an expression, while print() can’t 

C. echo() can be used in the CLI version of PHP, while print() can’t 

D. print() can be used in the CLI version of PHP, while echo() can’t 

49. Given a comma-separated list of values in a string, which function from the given list can create an array
of each individual value with a single call?

A. strstr() 

B. Cannot be done with a single function 

C. extract() 

D. explode() 

50. What is the best all-purpose way of comparing two strings?

A. Using the strpos function 

B. Using the == operator 

C. Using strcasecmp() 

D. Using strcmp() 

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