Match common DOS commands with their primary functions: (A) ATTRIB, (B) SCANDISK, (C) MOVE, (D) TREE — with: (1) displays all directories and subdirectories, (2) moves files to another directory, (3) checks the status of the disk, (4) hides or changes attributes of a file.
Electronics and Communication Engineering
Matching Questions
Difficulty: Easy
Choose an option
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AA-1, B-2, C-3, D-4
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BA-3, B-4, C-2, D-1
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CA-2, B-3, C-4, D-1
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DA-4, B-3, C-2, D-1
Answer
Correct Answer: A-4, B-3, C-2, D-1
Explanation
Introduction / Context:DOS utilities provide file, directory, and disk-maintenance operations. Knowing what each command does is essential for legacy systems and foundational operating-system literacy.
Given Data / Assumptions:
- Commands: ATTRIB, SCANDISK, MOVE, TREE.
- Functions: list directory tree, move files, check disk status, set/hide attributes.
Concept / Approach:Map each command to its main purpose from standard DOS help manuals: ATTRIB changes attributes; SCANDISK checks/repairs; MOVE relocates files; TREE displays directory hierarchy.
Step-by-Step Solution:
ATTRIB → attribute operations like +H (hidden), +R (read-only) → A-4.SCANDISK → surface/media and filesystem checks → B-3.MOVE → transfers files to another directory or drive → C-2.TREE → prints directory and subdirectory structure → D-1.Verification / Alternative check:Running 'command /?' or DOS manuals confirms each mapping (ATTRIB, SCANDISK, MOVE, TREE) with the listed functions.
Why Other Options Are Wrong:
- A-1, B-2, C-3, D-4: Swaps TREE with ATTRIB and misassigns others.
- A-3, B-4, C-2, D-1: Interchanges ATTRIB and SCANDISK purposes.
- A-2, B-3, C-4, D-1: Mixes up ATTRIB and MOVE.
Common Pitfalls:
- Assuming ATTRIB merely hides files; it can set multiple attributes (+R, +H, +S).
- Confusing SCANDISK with CHKDSK; both check disks, but SCANDISK (DOS 6.x) offered enhanced repair/reporting.
Final Answer:A-4, B-3, C-2, D-1