Exam 1z0-078 topic 1 question 98 discussion

Actual exam question from Oracle's 1z0-078

Question #: 98
Topic #: 1

Examine this tnsnames entry from a RAC configuration using a SCAN listener:

Which two statements are true about clients using this entry to connect? (Choose two.)

A. The host name in the tnsnames entry must be changed if nodes are added or removed from the cluster.
B. Clients using EZConnect can benefit from connect time load balancing because the tnsnames entry refers to a SCAN listener.
C. Client connection requests are automatically balanced across all IP addresses defined for the SCAN.
D. A client connection request is received by a SCAN listener that creates the connection to the least-loaded database instance.
E. Client connection requests are automatically failed over to another SCAN listener if the chosen SCAN listener is not available.

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Suggested Answer: CE 🗳️

by 217972f at May 25, 2025, 11:01 a.m.

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217972f

3 weeks ago

Selected Answer: CD

I think CD because this configuration is not optimal. with LOAD_BALANCE=on you should have the three scan IP in tnsnames and client side load balancing will be used but in this configuration there is only SCAN specified so server side load balancing will be used

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