Intro to Computing - How Data is RepresentedWhich of these is the correct way to write a filename with a PDF extension?Adocument.pdfBdocumentpdfCdocument_pdfDdocument-pdfCheck Answer
Step-by-Step SolutionSolution:Step 1: Identify the file extension formatA file extension always follows a dot after the filename, like .pdf.Step 2: Check the options for correct dot usageOnly 'document.pdf' uses a dot before 'pdf', making it a valid filename with extension.Final Answer:document.pdf -> Option AQuick Check:Filename.extension = document.pdf [OK]Quick Trick: File extension always follows a dot (.) [OK]Common Mistakes:Omitting the dot before the extensionUsing underscores or dashes instead of a dotConfusing extension with part of the filename
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