Six files in a directory are labelled P, Q, R, S, T, and U. You are tasked with identifying specific files based on their system attributes:
(i) Files P, Q, and R are Word Documents (.docx), while S, T, and U are Excel Spreadsheets (.xlsx).
(ii) Files Q, R, T, and U are marked as Read-only, while the others are Editable.
(iii) Files P, Q, and S are backed up to the Cloud, while the others are stored only on the Local Disk.
Which two files are Read-only, Excel Spreadsheets stored only on the Local Disk?
Explanation
To identify the correct files, we define the sets based on the attributes provided in image_817bc6.png. Let the set of all files be F={P,Q,R,S,T,U}.
Step 1: Define Sets based on Conditions
Set E (Excel Spreadsheets): Based on attribute (i), E={S,T,U}.
Set Ro (Read-only files): Based on attribute (ii), Ro={Q,R,T,U}.
Set L (Stored on Local Disk): Based on attribute (iii), the files not backed up to the Cloud are {R,T,U}. Thus, L={R,T,U}.
Step 2: Find the Intersection
We need to find the files that satisfy all three conditions, which is represented by the intersection of the sets: Sresult=E∩Ro∩L.
Sresult={S,T,U}∩{Q,R,T,U}∩{R,T,U}
Conclusion:
Files T and U meet all three criteria.
Correct Answer: Option 4.