Exam 1z0-068 topic 1 question 26 discussion

Actual exam question from Oracle's 1z0-068

Question #: 26
Topic #: 1

You administer a six-instance, policy-managed, multitenant RAC database CDB1 with three PDBs: PDB_1, PDB_2 and PDB_3.
Server pool prod_pool has a cardinality of three and all six hosts of the cluster app.
Examine these commands executed on HOST01:
$ srvctl add service db CDB1 pdb PDB_1 service AR serverpool prod_pool cardinality singleton
$ srvctl start service db CDB1 service AR
Which two statements are true regarding the AR service?

A. AR runs as a singleton service in the server pool prod_pool and the AR service is available in each of the CDB1 instances.
B. AR is available on any one available CDB1 instance in prod_pool at any one time.
C. AR can fail over to any one of the available CDB1 instances.
D. AR is available only on the CDB1 instance on HOST01.
E. AR can fail over to any other available CDB1 instance in prod_pool.

Show Suggested Answer

Suggested Answer: CD 🗳️

by hereisash at Feb. 27, 2021, 7:34 a.m.

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avrely

11 months, 3 weeks ago

Selected Answer: BE

B. AR is available on any one available CDB1 instance in prod_pool at any one time. E. AR can fail over to any other available CDB1 instance in prod_pool, not any of CDB(6 hosts) instances.

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JVarelaC

1 year, 7 months ago

A no; a singleton service runs in only one instance B no; a singleton service is available in only one instance, though it's true that the instances of CDB1 runs all in hosts in prod_pool C yes: a singleton service runs in only one instance, though it can failover to only one same database instance D no; service creation and service starting does not have to take place in the same node of command execution E yes; can fail over to any other instance of CDB1 database, and this database runs in the three hosts that belong to prod_pool

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bestsalman

2 years, 10 months ago

sorry b and E not b and c

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bestsalman

2 years, 10 months ago

it is B,C it is cardinality singleton mean that will be run on only one instance at a time and choose from server pool active then failover if instance fails

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