1Z0-058 Question #79: Real Exam Question with Answer & Explanation

The correct answer is A. Services provide the ability to balance client connections across the instances in an Oracle RAC B. There are two types of load balancing that you can implement; load balancing decisions can be D. With server-side load balancing, the listener directs a connection request to the best instance that E. Client-side load balancing balances the connection requests across the listeners.. Services and Connection Load Balancing The two load balancing methods that you can implement are: - Client-side load balancing: Balances the connection requests across the listeners - Server-side load balancing: The listener directs a connection request to the best instance curre

Question

Which four statements are true about services and connection load balancing?

Options

AServices provide the ability to balance client connections across the instances in an Oracle RAC
BThere are two types of load balancing that you can implement; load balancing decisions can be
CIn a RAC database environment, you should select only one load balancing method.
DWith server-side load balancing, the listener directs a connection request to the best instance that
EClient-side load balancing balances the connection requests across the listeners.

Explanation

Services and Connection Load Balancing The two load balancing methods that you can implement are: - Client-side load balancing: Balances the connection requests across the listeners - Server-side load balancing: The listener directs a connection request to the best instance currently providing the service by using the load balancing advisory (LBA). FAN, Fast Connection Failover, and LBA depend on a connection load balancing configuration that includes setting the connection load balancing goal for the service. The load balancing goal for the service can be - LONG: For applications having long-lived connections. This is typical for connection pools and SQL*Forms sessions. - SHORT: For applications that have short-lived connection Oracle Net Services provides the ability to balance client connections across the instances in an Oracle RAC configuration. You can implement two types of load balancing: client-side and server- Client-side load balancing balances the connection requests across the listeners. With server-side load balancing, the listener directs a connection request to the best instance currently providing the service by using the load balancing advisory. In a RAC database, client connections should use both types of connection load balancing. Oracle 11g: RAC and Grid Infrastructure Administration Accelerated 15 ?12

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