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Oracle 1Z0-468 - Questions & Answers

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Question 1
Multiple choice

Which three metrics are commonly used to evaluate garbage collector performance? (Choose three.)

A.

Throughput

B.

Pause time

C.

Method area

D.

Native threads

E.

Heap size

Question 2
Single choice

Which type of appliance would you use to package custom applications into an appliance?

A.

WebLogic Server appliance

B.

external appliance

C.

generic appliance

D.

database appliance

E.

Oracle Tuxedo appliance

Question 3
Single choice

Consider the following code:

If the initial stock amount was 15, and 5 different clients (in different JVMs) attempted to execute the same code simultaneously, what would be the resulting level of stock?

A.

20, because Coherence does implicit locking

B.

15, because a concurrency control exception will be thrown

C.

16, because of the lack of concurrency control

D.

undefined, because of the lack of concurrency control

Question 4
Multiple choice

Which two mechanisms are explicitly monitored to determine death of a cluster member? (Choose two.)

A.

garbage collection

B.

stuck threads

C.

heartbeats

D.

TCP socket connections

Question 5
Multiple choice

Which three plug-ins are pre-installed with EM 12c?

A.

Oracle Fusion Middleware

B.

Oracle Cloud Application

C.

Oracle Database

D.

Oracle MOS (My Oracle Support)

E.

Exalogic Elastic Cloud Infrastructure

Question 6
Single choice

Which configuration can be used for enabling Coherence as an L2 Cache?

A.

@Entity@CacheInterceptor (CoherenceReadCustomizer.class)public class Employee implements
Serializable

B.

@Entity@Customizer(CoherenceReadCustomizer.class)public class Employee implements
Serializable

C.

@Entity@Customizer(CoherenceReadWriteCustomizer.class)public class Employee implements
Serializable

D.

@Entity@CacheInterceptor (CoherenceInterceptor.class)public class Employee implements
Serializable

Question 7
Multiple choice

With which three activities does Virtual Assembly Builder help? (Choose three.)

A.

maintaining flexibility for developers

B.

reducing runtime errors

C.

enabling full access to infrastructure

D.

creating a standardized model for IT

E.

automating provisioning of the entire application topology

Question 8
Single choice

An Oracle RAC Database appliance was initially deployed with two database instances. The load on the database has now increased and another instance needs to be provisioned.

How would you add one more instance of the earlier deployed appliance?

A.

Create and deploy a new assembly containing a single instance database appliance.

B.

Add a new single instance database appliance into the previously created assembly and redeploy it.

C.

Use the ScaleAppliance operation to scale up the deployed appliance instances from two to three.

D.

Use the createAssemblyInstance operation to create a new instance of the existing assembly and deploy the new assembly instance.

Question 9
Multiple choice

Which four actions can you perform by using features that are included in WLS management Pack EE? (Choose four.)

A.

manage multiple domains centrally

B.

perform in-depth JVM diagnostics

C.

perform user-session diagnostics

D.

trace transactions across multi-tier environments

E.

perform disaster recovery operations

F.

perform full session replay

Question 10
Multiple choice

Assume that network latency between two data centers is 5 milliseconds with minimal packet loss.
Identify two problems with running one Coherence cluster that spans these two data centers (Choose two.)

A.

Outage in the WAN link can cause split brain.

B.

Access and writes to data takes longer to complete.

C.

Total loss of power in one data center can lead to split brain.

D.

Network latency will lead to cluster instability.

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