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PHP Zend Certification Exam Solution Guide, Exams of Computer Security

DeVry University - MinnesotaComputer Security

A comprehensive guide to the php zend certification exam, covering a wide range of topics related to php programming. It includes detailed explanations and solutions for various questions on bitwise operations, variable types, operators, namespaces, performance factors, and more. Designed to help php developers prepare for the zend certification exam by providing them with a thorough understanding of the key concepts and best practices in php development. It covers a variety of php-related topics, including data types, control structures, functions, arrays, and object-oriented programming. A valuable resource for anyone seeking to enhance their php skills and obtain the zend certification, which is a widely recognized credential in the php development community.

Typology: Exams

2023/2024

Available from 08/26/2024

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PHP Zend Certification Exam Solution
Guide_Answered.
Integral numbers are internally converted into what? - *Correct Answer*bits
What is the symbol for the bitwise AND? - *Correct Answer*&
What is the symbol for the bitwise OR? - *Correct Answer*|
What is the symbol for the bitwise XOR? - *Correct Answer*^
What is the criteria for the bitwise AND? - *Correct Answer*Matching "1" in
both operands.
What is the criteria for the bitwise OR? - *Correct Answer*At least one "1"
in an operand
What is the criteria for the bitwise XOR? - *Correct Answer*True only if
operands are different
What is the symbol to NEGATE BITS? - *Correct Answer*~
What symbol is used to shift bits? - *Correct Answer*<< or >>
<?= is short for what? - *Correct Answer*<?php echo
Value equality operator (PHP handles data type conversion) "123" === 123
- *Correct Answer*==
Value inequality operator (PHP handles data type conversion) "123" != 124
- *Correct Answer*!=
Value/type equality operator (Compares values with a type check) 123 ===
123 - *Correct Answer*===
Value/type inequality operator (Compares values with a type check) "123" !
== 123 - *Correct Answer*!==
Array UNION operator - *Correct Answer*+
Array EQUAL operator - *Correct Answer*==
Array IDENTICAL operator - *Correct Answer*===
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PHP Zend Certification Exam Solution

Guide_Answered.

Integral numbers are internally converted into what? - Correct Answerbits What is the symbol for the bitwise AND? - Correct Answer& What is the symbol for the bitwise OR? - Correct Answer| What is the symbol for the bitwise XOR? - Correct Answer^ What is the criteria for the bitwise AND? - Correct AnswerMatching "1" in both operands. What is the criteria for the bitwise OR? - Correct AnswerAt least one "1" in an operand What is the criteria for the bitwise XOR? - Correct AnswerTrue only if operands are different What is the symbol to NEGATE BITS? - Correct Answer~ What symbol is used to shift bits? - Correct Answer<< or >>

  • Correct Answer== Value inequality operator (PHP handles data type conversion) "123" != 124
  • Correct Answer!= Value/type equality operator (Compares values with a type check) 123 === 123 - Correct Answer=== Value/type inequality operator (Compares values with a type check) "123"! == 123 - Correct Answer!== Array UNION operator - Correct Answer+ Array EQUAL operator - Correct Answer== Array IDENTICAL operator - Correct Answer===

    • Array NOT EQUAL operator - Correct Answer!= Array NOT EQUAL operator - Correct Answer<> Array NOT IDENTICAL operator - Correct Answer!== Logical operator: $a and $b - Correct AnswerBOTH $a AND $b TRUE Logical operator: $a or $b - Correct AnswerEITHER $a OR $b TRUE Logical operator: $a xor $b - Correct AnswerEITHER $a,$b TRUE; NOT BOTH Logical operator:! $a - Correct Answer$a NOT TRUE Logical operator: $a && $b - Correct AnswerBOTH $aAND $bTRUE Logical operator: $a || $b - Correct AnswerEITHER $a OR $b TRUE Logical operator: $a ^ $b - Correct AnswerEITHER $a,$b TRUE; NOT BOTH EXECUTION OPERATORS USE _______________ TO EXECUTE THE CONTENTS ENCLOSED BY THEM AS A SHELL COMMAND, EQUIVALENT TO shell_exec() - Correct Answer`` Variables are case sensitive (true or false) - Correct Answertrue Variables are not case sensitive (true or false) - Correct Answerfalse Variables can be assigned by value or by reference (true or false) - Correct Answertrue Variables can only be assigned by value (true or false) - Correct Answerfalse Variables can only be assigned by reference (true or false) - Correct Answerfalse The ______ symbol creates a reference, or alias, and causes both the original variable and alias to point to the same memory value. - Correct Answer& VARIABLE TYPING IS SET AUTOMATICALLY BY THE PHP PARSER AND CALLED - Correct AnswerTYPE JUGGLING/COERCION

    • AVOIDS HAVING TO USE LONG, HIGHLY DESCRIPTIVE CLASS NAMES

    • CONSTANTS, CLASSES, TRAITS, INTERFACES AND FUNCTIONS ARE

    AFFECED BY

    THE USE OF NAMESPACES

    • CREATE SUB-NAMESPACES TO SUB-DIVIDE A LIBRARY

    FACTORS AFFECTING PERFORMANCE (TWO MAJOR AREAS) - Correct Answer• REDUCED MEMORY USAGE

    • RUN-TIME DELAYS Function world() is defined in the namespace 'myapp\utils\hello'. Your code is in namespace 'myapp'. What is the correct way to import the hello namespace so you can use the world() function? - Correct Answeruse myapp\utils\hello Which PHP functions may be used to find out which PHP extensions are available in the system? (Choose 2) - Correct AnswerC: get_loaded_extensions() D: phpinfo() What is the name of the error level constant that is used to designate PHP code that will not work in future versions? - Correct AnswerE_DEPRECATED Your PHP script is repeatedly parsing 50KB of data returned from a remote web service into browser-readable HTML. Users complain that the script takes a long time to run. Which of the following measures usually leads to the best results? (Choose
      • Correct AnswerC: Cache the data returned by the web service locally D: Upgrade to the latest version of PHP What is the output of the following code? $a = 1; ++$a; $a *= $a echo $a--; - Correct Answer When PHP is running on a command line, what super-global will contain the command line arguments specified? - Correct Answer$_SERVER What is the output of the following code?
    return $x1 + $x2; } $x1 = 0; $x2 = 1; for ($i = 0; $i < 10; $i++) { echo fibonacci($x1, $x2); } ?> - Correct Answer1,1,1,1,1,1,1,1,1,1, What will the following code produce?

    Value - *Correct Answer*Nothing Which of the following is a feature that does NOT exist in the DateTime extension? A: The ability to list time zones by continent B: The ability to modify date data C: The ability to generate dates between two date periods D: The ability to parse dates in the cookie format