PCEP-30-02 Zertifizierung - PCEP-30-02 Testantworten

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Python Institute PCEP-30-02 Prüfungsplan:

ThemaEinzelheiten
Thema 1
  • Functions and Exceptions: This part of the exam covers the definition of function and invocation
Thema 2
  • Control Flow: This section covers conditional statements such as if, if-else, if-elif, if-elif-else
Thema 3
  • Loops: while, for, range(), loops control, and nesting of loops.
Thema 4
  • parameters, arguments, and scopes. It also covers Recursion, Exception hierarchy, Exception handling, etc.

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Python Institute PCEP - Certified Entry-Level Python Programmer PCEP-30-02 Prüfungsfragen mit Lösungen (Q24-Q29):

24. Frage
What happens when the user runs the following code?

Antwort: C

Begründung:
Explanation
The code snippet that you have sent is a while loop with an if statement and a print statement inside it. The code is as follows:
while True: if counter < 0: print("") else: print("**")
The code starts with entering a while loop that repeats indefinitely, because the condition "True" is always true. Inside the loop, the code checks if the value of "counter" is less than 0. If yes, it prints a single asterisk () to the screen. If no, it prints three asterisks (**) to the screen. However, the code does not change the value of
"counter" inside the loop, so the same condition is checked over and over again. The loop never ends, and the code enters an infinite loop.
The program outputs either one asterisk () or three asterisks (**) to the screen repeatedly, depending on the initial value of "counter". Therefore, the correct answer is D. The program enters an infinite loop.


25. Frage
Arrange the code boxes in the correct positions in order to obtain a loop which executes its body with the level variable going through values 5, 1, and 1 (in the same order).

Antwort:

Begründung:


26. Frage
Insert the code boxes in the correct positions in order to build a line of code which asks the user for an integer value and assigns it to the depth variable.
(Note: some code boxes will not be used.)

Antwort:

Begründung:

Explanation

One possible way to insert the code boxes in the correct positions in order to build a line of code which asks the user for an integer value and assigns it to the depth variable is:
depth = int(input("Enter the immersion depth: "))
This line of code uses the input function to prompt the user for a string value, and then uses the int function to convert that string value into an integer number. The result is then assigned to the variable depth.
You can find more information about the input and int functions in Python in the following references:
[Python input() Function]
[Python int() Function]


27. Frage
What is the expected output of the following code?

Antwort: D

Begründung:
The code snippet that you have sent is a conditional statement that checks if a variable "counter" is less than
0, greater than or equal to 42, or neither. The code is as follows:
if counter < 0: print("") elif counter >= 42: print("") else: print("") The code starts with checking if the value of "counter" is less than 0. If yes, it prints a single asterisk () to the screen and exits the statement. If no, it checks if the value of "counter" is greater than or equal to 42. If yes, it prints three asterisks () to the screen and exits the statement. If no, it prints two asterisks () to the screen and exits the statement.
The expected output of the code depends on the value of "counter". If the value of "counter" is 10, as shown in the image, the code will print two asterisks (**) to the screen, because 10 is neither less than 0 nor greater than or equal to 42. Therefore, the correct answer is C. * * Reference: [Python Institute - Entry-Level Python Programmer Certification]


28. Frage
What is the expected result of the following code?

Antwort: B

Begründung:
Explanation
The code snippet that you have sent is trying to use the global keyword to access and modify a global variable inside a function. The code is as follows:
speed = 10 def velocity(): global speed speed = speed + 10 return speed print(velocity()) The code starts with creating a global variable called "speed" and assigning it the value 10. A global variable is a variable that is defined outside any function and can be accessed by any part of the code. Then, the code defines a function called "velocity" that takes no parameters and returns the value of "speed" after adding 10 to it. Inside the function, the code uses the global keyword to declare that it wants to use the global variable
"speed", not a local one. A local variable is a variable that is defined inside a function and can only be accessed by that function. The global keyword allows the function to modify the global variable, not just read it. Then, the code adds 10 to the value of "speed" and returns it. Finally, the code calls the function "velocity" and prints the result.
However, the code has a problem. The problem is that the code uses the global keyword inside the function, but not outside. The global keyword is only needed when you want to modify a global variable inside a function, not when you want to create or access it outside a function. If you use the global keyword outside a function, you will get a SyntaxError exception, which is an error that occurs when the code does not follow the rules of the Python language. The code does not handle the exception, and therefore it will terminate with an error message.
The expected result of the code is an unhandled exception, because the code uses the global keyword incorrectly. Therefore, the correct answer is A. The code is erroneous and cannot be run.


29. Frage
......

Qualitativ hochwertige PCEP-30-02 Prüfungsunterlagen. Gehen Sie einen entscheidenden Schritt weiter. Mit der Python Institute PCEP-30-02 Zertifizierung erhalten Sie einen Nachweis Ihrer besonderen Qualifikationen und eine Anerkennung für Ihr technisches Fachwissen. Python Institute bietet eine Reihe verschiedener Zertifizierungsprogramme für professionelle Benutzer an. Untersuchungen haben gezeigt, dass zertifizierte Fachleute häufig mehr verdienen können als ihre Kollegen ohne Zertifizierung.

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