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Exam 1z0-071 topic 1 question 104 discussion

Actual exam question from Oracle's 1z0-071
Question #: 104
Topic #: 1
[All 1z0-071 Questions]

Which three statements are true about indexes and their administration in an Oracle database? (Choose three.)

  • A. The same table column can be part of a unique and non-unique index.
  • B. A descending index is a type of function-based index.
  • C. An INVINSIBLE index is not maintained when DML is performed on its underlying table.
  • D. If a query filters on an indexed column then it will always be used during execution of the query.
  • E. An index can be created as part of a CREATE TABLE statement.
  • F. An UNUSABLE index is maintained when DML is performed on its underlying table.
Show Suggested Answer Hide Answer
Suggested Answer: ABE 🗳️
by Babi265 at Dec. 5, 2022, 3:58 p.m.

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TATSSSS
4 months ago
Selected Answer: ABE
C and F are wrong, oracle documentation says: Unlike unusable indexes, an invisible index is maintained during DML statements. https://docs.oracle.com/en/database/oracle/oracle-database/19/admin/managing-indexes.html#GUID-3A66938F-73C6-4173-844E-3938A0DBBB54
upvoted 2 times
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lucemqy
8 months ago
Selected Answer: ABE
ABE correct
upvoted 1 times
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ESZ
10 months ago
Selected Answer: ABE
ABE correct
upvoted 1 times
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zouve
1 year ago
BEF for me
upvoted 1 times
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dilshod
1 year, 1 month ago
Selected Answer: ABE
These are correct
upvoted 2 times
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Poke90
1 year, 3 months ago
Selected Answer: ABE
invisible indexes are maintained, unusable indexes are not. C and F are wrong
upvoted 1 times
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Poke90
1 year, 4 months ago
F is wrong but C is correct: https://docs.oracle.com/cd/E18283_01/server.112/e17120/indexes004.htm so either ACE or BCE
upvoted 1 times
jr_C
1 year, 4 months ago
C is false, it is explained on the link you provided on the section: Understand When to Use Unusable or Invisible Indexes
upvoted 1 times
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greenneem
1 year, 5 months ago
F is wrong. it is not maintained by DML.
upvoted 2 times
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Viviana3184
1 year, 6 months ago
ABE are correct
upvoted 2 times
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Babi265
1 year, 7 months ago
Answer is ABE. F is wrong, unused index is not mentained
upvoted 3 times
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