Zend Zend PHP 5.3 Certification.

Transcription

1 Zend Zend PHP 5.3 Certification

2 QUESTION: 237 Which of the following functions can be used to change the permission on a file or directory? A. chmod B. cd C. touch D. ls QUESTION: 238 Given a table created as shown below: create table foo (c1 int, c2 int, c3 int, c4 char(10)) If column c1 has a cardinality of 10, column c2 has a cardinality of 5000, and column c3 has a cardinality of , which of the following indexes would optimize the following statement? Select c1,c2,c3 from foo where c1=100 and c2= 100 and c3 = 100 A. create index foox on foo (c2,c1,c3) B. create index foox on foo (c3,c1,c2) C. create index foox on foo (c1,c2,c3) D. create index foox on foo (c3,c2,c1) Answer: D QUESTION: 239 Which of the following functions can be used to change the permission on a file or directory? A. chmod B. cd C. touch D. ls QUESTION:

3 Which of the following HTTP response codes indicates that a request was successful and the requested data will follow? A. 200 B. 302 C. 404 D. 301 QUESTION: 241 Consider a string in the following format: a*bcd/a.d You want to perform regular expression in this string; however, you are unable to do this since the string contains special characters. You can make this string PCRE compatible if you convert this string in the following format: a\*bcd\/a\.d Which of the following functions will you use to accomplish the task into a single call? A. preg_match() B. preg_split() C. preg_quote() D. expload() Answer: C QUESTION: 242 You run the following PHP script: <?php $name = mysql_real_escape_string($_post["name"]); $password = mysql_real_escape_string($_post["password"]);?> What is the use of the mysql_real_escape_string() function in the above script. Each correct answer represents a complete solution. Choose all that apply A. It can be used as a countermeasure against a SQL injection attack. B. It escapes all special characters from strings $_POST["name"] and $_POST["password"] except ' 92

4 and ". C. It escapes all special characters from strings $_POST["name"] and $_POST["password"]. D. It can be used to mitigate a cross site scripting attack., C QUESTION: 243 Consider the following script: <?php echo date("m-d-y", mktime(0, 0, 0, 12, 32, 1995));?> What will be the output of the above script? A. Jan B. Fatal error C. Date out of range error D. Jan Answer: D QUESTION: 244 Which of the following data types are compound data types? A. Objects B. Arrays C. Booleans D. Strings, B QUESTION: 245 Instances of a class are referred as a(n). A. Constructors B. Objects C. Functions D. Methods 93

5 Answer: B QUESTION: 246 Which of the following are the limitations for the cross site request forgery (CSRF) attack? Each correct answer represents a complete solution. Choose all that apply. A. The target site should authenticate in GET and POST parameters, not only cookies. B. The attacker must determine the right values for all the form inputs. C. The target site should have limited lifetime authentication cookies. D. The attacker must target a site that doesn't check the referrer header. Answer: B, C QUESTION: 247 Which of the following functions can be used to change the permission on a file or directory? A. chmod B. cd C. touch D. ls QUESTION: 248 Which of the following HTTP response codes indicates that a request was successful and the requested data will follow? A. 200 B. 302 C. 404 D

6 QUESTION: 249 You run the following PHP script: <?php define ("USER", "Maria"); $USER="John"; print "Welcome ".USER;?> What will be the output? A. Welcome John B. Script will through an error. C. Welcome USER D. Welcome Maria Answer: D QUESTION: 250 Instances of a class are referred as a(n). A. Constructors B. Objects C. Functions D. Methods Answer: B QUESTION: 251 You work as a Web Developer for Remote Inc. What will be the output when you try to run the script below? <?php $b = false; if($b = true) print("true"); else print("false");?> A. true B. false C. true false D. The script will throw an error message. 95

7 QUESTION: 252 Which of the following group functions CANNOT be used to store numeric data? A. SUM B. MIN C. COUNT D. AVG E. MAX Answer: C QUESTION: 253 Which of the following functions can be used to change the permission on a file or directory? A. chmod B. cd C. touch D. ls QUESTION: 254 Given a table created as shown below: create table foo (c1 int, c2 int, c3 int, c4 char(10)) If column c1 has a cardinality of 10, column c2 has a cardinality of 5000, and column c3 has a cardinality of , which of the following indexes would optimize the following statement? Select c1,c2,c3 from foo where c1=100 and c2= 100 and c3 = 100 A. create index foox on foo (c2,c1,c3) B. create index foox on foo (c3,c1,c2) C. create index foox on foo (c1,c2,c3) D. create index foox on foo (c3,c2,c1) Answer: D 96

8 QUESTION: 255 Which of the following group functions CANNOT be used to store numeric data? A. SUM B. MIN C. COUNT D. AVG E. MAX Answer: C 97

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