Oracle WebLogic Server 12c: Administration I

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This questions were last updated on November 19, 2024

Question 1 of 73

You are using the Configuration Wizard to create a new domain that will consist of a cluster of three managed servers along with an instance of WebLogic Server acting as HTTP proxy to distribute traffic to the cluster.

Which three steps should you perform with the Configuration Wizard? (Choose three.)

Create one cluster.

Install Oracle HTTP Server.

Create one Coherence server.

Create four managed servers.

Assign three servers to a cluster.

Specify a proxy port for the administration server.

Correct Answer: A, E, F

To create a new domain with a cluster of three managed servers and an instance of WebLogic Server acting as an HTTP proxy, you need to create one cluster, assign three managed servers to that cluster, and specify a proxy port for the administration server to handle the HTTP traffic distribution. Installing Oracle HTTP Server and creating a Coherence server are not required steps for this specific setup.

Question 2 of 73

You decide to use a database to store WebLogic Server transaction logs for a managed server.

Which two steps are required to configure this? (Choose two.)

Under the managed server's Services configuration select "JDBC" as the type for the transaction log store.

Under the managed server's Services configuration, select " Disable the Default Store".

Create a non-XA data source in the domain for the database transaction log.

Create an XA data source in the domain for the database transaction log.

Correct Answer: A, D

To configure a database to store WebLogic Server transaction logs for a managed server, you need to, first, under the managed server's Services configuration, select 'JDBC' as the type for the transaction log store. This is necessary to specify that the transaction logs will be stored in a database rather than a file store. Second, you need to create an XA data source in the domain for the database transaction log. An XA data source is required because it supports distributed transactions, which is crucial for maintaining transactional integrity in a distributed system.

Question 3 of 73

Which session persistence type is invalid?

async_replicated

async_jdbc

replicated

async_memory

file

replicated_if_clustered

Correct Answer: D

Session persistence is a method used to keep the user session data available across multiple requests. Common types include file-based, database (JDBC) based, and various forms of in-memory replication. 'async_memory' is not a recognized standard name for a session persistence type, whereas types like 'async_replicated', 'async_jdbc', 'replicated', 'cookie', 'file', and 'replicated_if_clustered' are valid and well-defined in various web and application server documentation. Therefore, 'async_memory' is the invalid session persistence type.

Question 4 of 73

An administrator in your organization says you do not need to back up the domain files on a machine which only managed servers run.

Select the best explanation for this statement.

This is true because the domain files can be re-created with the pack and unpack utilities.

This is true (with an exception) because the domain files can be re-created with the pack and unpack utilities. The exception is if your security realm uses the embedded LDAP system. Which is not included in the JAR file created by the pack utility.

This is true (with an exception) because the domain files can be re-created with the pack and unpack utilities. The exception is for applications that are deployed to the managed server. Those files are not included in the JAR file created by the pack utility. If you back those up manually, then pack and unpack can be used.

This is not true. You need to back up the domain files on a machine on which only managed servers run by using operating system commands (such as tar or zip).

Correct Answer: B

It is true that the domain files can be recreated using the pack and unpack utilities. However, there is an exception: if the security realm uses the embedded LDAP system, this is not included in the JAR file created by the pack utility. Therefore, it is important to back up the embedded LDAP data separately to ensure complete restoration of the security configuration.

Question 5 of 73

Which statement is true about stopping Node Manager?

If you stop Node Manager, the managed servers it started will also stop.

You may kill the Node Manager process by using operating system commands.

Use the stopNodeManager.sh script so Node Manager stops gracefully.

Using the administration console, select the appropriate machine and click Stop.

The administration server goes into ADMIN mode if it can no longer communicate with Node Manager.

The managed servers that Node Manager started go into ADMIN mode if they can no longer communicate with Node Manager.

Correct Answer: C

To stop Node Manager gracefully, the appropriate method is to use the stopNodeManager.sh script. This script ensures that Node Manager stops properly without leaving any processes or causing potential issues. Killing the Node Manager process using operating system commands, although it may stop Node Manager, does not guarantee a graceful shutdown and can lead to unclean shutdown or other issues.