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WGU D522 Objective Assessment (Latest 2024/ 2025 Update) Python for IT Automation| Qs & As| 100% Correct| Grade A (Verified Answers)

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WGU D522 Objective Assessment (Latest 2024/ 2025 Update) Python for IT Automation| Qs & As| 100% Correct| Grade A (Verified Answers) Q: What is the key difference between handling text files and binary files in Python? Answer: When working with text files in Python, it handles the encoding and decoding of the text into a specific character set Q: What does the readline() method do when working with text files in Python? Answer: It reads a single line from the file Q: What does the r() function do when working with CSV files in Python? Answer: It creates a reader object for reading CSV files Q: What is the difference between the 'a' and 'w' modes when using the open() function in Python? Answer: The 'a' mode appends to the end of the file, while the 'w' mode overwrites the file Q: What is a purpose of closing files in Python? Answer: It frees up system resources that were tied up with the file Q: What does the e() function do in Python? Answer: It deletes a file at the specified path Q: What type of Python programming error is described by the scenario? A Python program is expected to read and process data from a file. However, the program crashes during execution because the file it's trying to read does not exist. Answer: Runtime error Q: In the Python debugging process, what is the purpose of the pdb tool? Answer: To step through the code line by line, inspect variables, and set breakpoints at specific lines of code Q: Which Python debugging technique would be most useful for identifying bottlenecks in the code that may be causing performance issues? Answer: Profiling Q: A developer writes a Python program in an IDE. The program compiles and runs without crashing, but the output is not what the developer expected. What type of error is this? Answer: Semantic error Q: Which Python debugging tool is best suited for identifying potential issues in the code that might lead to errors? Answer: Linters Q: Which Python code snippet will result in a syntax error? Answer: for i in range(5) print(i) Q: A developer writes a Python program that includes a loop. The loop is intended to run 5 times, but the developer mistakenly sets it to run 6 times. What type of Python error is this? Answer: Off-by-one error Q: A developer writes a Python program that includes a conditional state- ment. The developer intends to check if a variable x is equal to 2, but mistak- enly uses the assignment operator (=) instead of the equality operator (==). What type of branching error is this? Answer: Incorrect use of assignment operator Q: In Python programming, which scenario is an example of a "Modifying a List While Iterating Over It" error? Answer: A loop that modifies the list it is iterating over, causing it to skip elements or go out of range Q: Which scenario is an example of a "NameError"? Answer: A local or global name is not found in the code Q: Which input validation method would be most appropriate to ensure that a username only contains letters, numbers, and underscores? Answer: Pattern matching Q: Which statement describes the difference between a for loop and a while loop in Python? Answer: A for loop is used for iterating over a sequence or other iterable objects, while a while loop is used when a set of statements needs to be executed until a condition is false Q:

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Uploaded on: November 16, 2024
Number of pages: 45
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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wgu d522 finald522 objective d522 pre assessment
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wgu d522 finald522 objective assessmentd522 pre
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WGUlD522lObjectivelAssessmentl(Latestl
Update)lPythonlforlITlAutomation|lQsl&lAs|
l100%lCorrect|lGradelAl(VerifiedlAnswers)
Q:lWhatlislthelkeyldifferencelbetweenlhandlingltextlfileslandlbinarylfileslinlPython?
Answer:
lWhenlworkinglwithltextlfileslinlPython,litlhandleslthelencodinglandldecodinglofltheltextlintola
lspecificlcharacterlset

Q:lWhatldoeslthelreadline()lmethodldolwhenlworkinglwithltextlfileslin
Python?

Answer:
lItlreadslalsinglellinelfromlthelfile

Q:lWhatldoeslthelcsv.reader()lfunctionldolwhenlworkinglwithlCSVlfileslin
Python?

Answer:
lItlcreateslalreaderlobjectlforlreadinglCSVlfiles

Q:lWhatlisltheldifferencelbetweenlthel'a'landl'w'lmodeslwhenlusinglthelopen()lfunctionlinlPyt
hon?

Answer:
lThel'a'lmodelappendsltolthelendloflthelfile,lwhilelthel'w'lmodeloverwriteslthelfile

Q:lWhatlislalpurposeloflclosinglfileslinlPython?

,Answer:
lItlfreesluplsystemlresourceslthatlwereltiedluplwithlthelfile

Q:lWhatldoeslthelos.remove()lfunctionldolinlPython?
Answer:
lItldeleteslalfilelatlthelspecifiedlpath

Q:lWhatltypeloflPythonlprogramminglerrorlisldescribedlbylthelscenario?
AlPythonlprogramlislexpectedltolreadlandlprocessldatalfromlalfile.lHowever,lthelprogramlcrash
eslduringlexecutionlbecauselthelfilelit'sltryingltolreadldoeslnotlexist.

Answer:
lRuntimelerror

Q:lInlthelPythonldebugginglprocess,lwhatlislthelpurposeloflthelpdbltool?
Answer:
lTolsteplthroughlthelcodellinelbylline,linspectlvariables,landlsetlbreakpointslatlspecificllineslofl
code

Q:lWhichlPythonldebuggingltechniquelwouldlbelmostlusefullforlidentifyinglbottleneckslinlthe
lcodelthatlmaylbelcausinglperformancelissues?

Answer:
lProfiling

Q:lAldeveloperlwriteslalPythonlprogramlinlanlIDE.lThelprogramlcompileslandlrunslwithoutlc
rashing,lbutltheloutputlislnotlwhatltheldeveloperlexpected.lWhatltypeloflerrorlislthis?

Answer:
lSemanticlerror

,Q:lWhichlPythonldebuggingltoollislbestlsuitedlforlidentifyinglpotentiallissueslinlthelcodelthatl
mightlleadltolerrors?

Answer:
lLinters
l

Q:lWhichlPythonlcodelsnippetlwilllresultlinlalsyntaxlerror?
Answer:
lforlilinlrange(5)
print(i)

Q:lAldeveloperlwriteslalPythonlprogramlthatlincludeslalloop.lThellooplislintendedltolrunl5lti
mes,lbutltheldeveloperlmistakenlylsetslitltolrunl6ltimes.lWhatltypeloflPythonlerrorlislthis?

Answer:
lOff-by-onelerror

Q:lAldeveloperlwriteslalPythonlprogramlthatlincludeslalconditionallstate-
lment.lTheldeveloperlintendsltolcheckliflalvariablelxlislequalltol2,lbutlmistak-
lenlyluseslthelassignmentloperatorl(=)linsteadloflthelequalityloperatorl(==).lWhatltypeloflbranc
hinglerrorlislthis?

Answer:
lIncorrectluseloflassignmentloperator

Q:lInlPythonlprogramming,lwhichlscenariolislanlexampleloflal"ModifyinglalListlWhilelIterati
nglOverlIt"lerror?

Answer:

, lAllooplthatlmodifieslthellistlitlisliteratinglover,lcausinglitltolskiplelementslorlgoloutloflrange

Q:lWhichlscenariolislanlexampleloflal"NameError"?
Answer:
lAllocallorlgloballnamelislnotlfoundlinlthelcode

Q:lWhichlinputlvalidationlmethodlwouldlbelmostlappropriateltolensurelthatlalusernamelonlylc
ontainslletters,lnumbers,landlunderscores?

Answer:
lPatternlmatching

Q:lWhichlstatementldescribesltheldifferencelbetweenlalforllooplandlalwhilellooplinlPython?
Answer:
lAlforllooplislusedlforliteratingloverlalsequencelorlotherliterablelobjects,lwhilelalwhilellooplislu
sedlwhenlalsetloflstatementslneedsltolbelexecutedluntillalconditionlislfalse

Q:l

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WGU D522 Objective Assessment (Latest 2024/ 2025 Update) Python for IT Automation| Qs & As| 100% Correct| Grade A (Verified Answers)

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