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Oracle WebLogic Server 12c: Administration I Questions and Answers

Question 1

Select the two true statements about upgrading WebLogic Server to version 12c (12.1.12). (Choose two.)

Options:

A.

To use the Reconfiguration Wizard, your current WebLogic Server version must be 9.0 or higher.

B.

The Domain Upgrade Wizard is no longer available in 12.1.2.

C.

After running the wizard to update your domain, you must reapply your start script customizations.

D.

You need to update the domain’s administration server files.

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Question 2

Which three statements are true about the Change Center in the Administration Console? (Choose three.)

Options:

A.

The Change Center has a link to view any servers that need to be restarted

B.

In a Development Mode domain, the configuration lock can be acquired automatically

C.

The Change Center has a link to view the changes made so far

D.

Locking the console prevents other privileged users from taking the lock until you release it or activate your changes

E.

After activating the changes to a server’s configuration, you must always restart that server

F.

The Change Center is available only in a Production Mode domain

Question 3

Your domain consists of 30 servers. You are using the Administration Console.

Which is the quickest way to identify the servers that are in a Failed health state?

Options:

A.

Use the Filter button from the domain’s Monitoring > Health tab.

B.

Use the Monitoring > Health tab for each server in the domain.

C.

Write a custom WLST script to print out failed server.

D.

Capture a diagnostic snapshot.

Question 4

As part of troubleshooting an application, you need to analyze the HTTP session count and the server heap size over the past six hours. You are using the Administration Console. You want to view both metrics together and correlate their values.

Which three steps should you take in the Administration Console? (Choose three.)

Options:

A.

Create a custom view.

B.

Start the JVM Runtime view.

C.

Drag each metric onto two charts in the same view.

D.

Access the Monitoring Dashboard.

E.

Click the application’s Monitoring tab.

Question 5

You create a new Managed Server in your domain by using the administration console. You give it the listen address of 192.0.2.0 and the listen port of 7100.You save and activate the changes.

You use the domain start script to start the new server. It fails. One of the messages in the window in which you can ran the script is:

Server failed to bind to any usable port.

You investigate and see that another process is running on 192.0.2.0 on port 7100.You also find many unused ports at that IP address.

Which two statements are true? (Choose two.)

Options:

A.

It is not an instance of WebLogic Server from this domain running at 192.0.2.0:7100. The administration console does not allow you to create a server at the same listen address and port as one already configured in the domain.

B.

It is an instance of WebLogic Server running at 192.0.2.0:7100. Other processes do not interfere with WebLogic Server.

C.

Changes the port number to an unused one to resolve this issue.

D.

It cannot be the administration server running at 192.0.2.0:7100, because admin servers run on port 7001.

E.

Because this Managed Server has never been started, it does not have a local copy of the configuration. If it did, by using Managed Server Independence, it would be able to switch to an unused port of its configured port was busy.

F.

The port number can stay 7100 if this machine has another IP address and the port is unused at that address.

Question 6

You are troubleshooting why transactions are not being committed. After investigation, you realize that these transactions have enough time during the first phase of the two-phase commit, but not enough time during the second phase. Therefore, rather than committing, they are timing out and are being rolled back.

Which Java Transaction API (JTA) attribute needs a larger value?

Options:

A.

Timeout Seconds

B.

Abandon Timeout Seconds

C.

Before Completion Iteration Limit

D.

Checkpoint Interval Seconds

E.

Unregister Resource Grace Period

Question 7

You plan to install WebLogic Server by using the generic JAR installer in silent mode.

What are two ways to create the required response file? (Choose two.)

Options:

A.

First install or deinstall graphically. There is an option to save a response file.

B.

Use the sample response file in the installation documentation as a template.

C.

First run the Repository Creation Utility. There is an option to save a response file.

D.

The response file is not required. You can answer questions interactively at the command line.

E.

The genetic JAR installer does not have a silent mode, so you do not need a response file when using this installer.

Question 8

The startup of a WebLogic Server instance fails with the error message:

java.net.BindException : Address already in use

Which two methods help identify what is currently listening at the port and the IP this server is configured to be bound to? (Choose two.)

Options:

A.

The pmap command lists all processes running with their associated port number.

B.

The UNIX lsof command can report information on the process that is listening at a particular IP and port on the local machine.

C.

netstat, which is available on Windows and Linux/UNIX, can report on the process bound to this IP and port.

D.

pstat will report detailed runtime statistics on any process currently listening at this IP and port.

E.

The Linux port watching tool PortInfo can raise an alert anytime a process attempts, succeeds, or fails to connect to a specific IP and port. It can also be used to identify if a port is being used by a java process.

Question 9

Before you view JVM performance information in the administration console, you want to request that the JVM do a garbage collection.

How can you do this in the admin console?

Options:

A.

You cannot do this from the admin console. You must use WLST or a JVM command- line tool.

B.

In the Monitoring > Performance tab, click Dump Thread Stacks.

C.

In the Monitoring > Threads tab, click Dump Thread Stacks.

D.

In the Monitoring > Performance tab, click Garbage Collect.

E.

In the Monitoring > Performance tab, click GC.

Question 10

Which three statements are true about WebLogic clusters? (Choose three.)

Options:

A.

Clusters provide clients with transparent failover.

B.

EJB applications can be targeted to entire cluster.

C.

All cluster members must bind to the same port number.

D.

Cluster members replicate application data by using heartbeats.

E.

Cluster members can be associated with one or more domains.

F.

Web applications require a proxy in order to be used in a cluster.

Question 11

Consider a WebLogic Java EE application that uses a JDBC data source.

Which three steps would the application developer typically write code to perform? (Choose three.)

Options:

A.

Test the connection to verify the database’s availability

B.

Add a new connection to the data source if none are available

C.

Close the connection to return the connection to the data source

D.

Request a connection from the data source

E.

Look up the data source using the JNDI name

Question 12

Consider a web application that is deployed to a single cluster. After configuring the application to use in-memory session replication, there is a noticeable drop in performance, possibly due to the large amount of data being placed in HTTP sessions.

Which action improves performance while continuing to provide high availability for this application’s sessions?

Options:

A.

Configure asynchronous session replication in the application

B.

Increase session timeout in the application

C.

Configure file-based session persistence in the application

D.

Configure automatic service migration in the application

E.

Configure cookie-based session persistence in the application

Question 13

Your server includes an application that users a generic JDBC data source to connect to a database. However, the network connection between the server and the database is not 100% reliable.

Identify two data source attributes that, if set properly can help avoid situations in which the application fails due to a failed JDBC connection. (Choose two.)

Options:

A.

Statement Cache Type

B.

Pool Reserve Mode

C.

Test Table Name

D.

Test Connection Mode

E.

Test Connections on Reserve

Question 14

Consider an application that comprises both web and EJB components.

What are two benefits of implementing a multitier cluster architecture over a single-tier(basic) cluster architecture? (Chose two.)

Options:

A.

Dynamic clusters are only supported for the multitier architecture

B.

Remote EJB access is blocked

C.

Each cluster can be scaled independently

D.

Future web clusters can share the same EJB tier

E.

All servers can be managed (started/stopped) together

Question 15

In memory replication in your cluster seems to be slow. You decide to create a replication channel for your cluster. Which two statements are true? (Choose two.)

Options:

A.

The channel is used for heartbeats so they do not interfere with replication communication

B.

Each server in the cluster must have this named replication channel configured on it

C.

If no replication channel is configured, then sessions are persisted to the file system or the database

D.

The channel can be used for stateful session bean replication

E.

The channel cannot use a secure protocol

Question 16

Several applications are deployed to a managed server. You want to compare the number of completed requests for all of these applications. What is the quickest wat to accomplish this?

Options:

A.

Launch WLST and run the viewAppRuntimes() command.

B.

Access the Monitoring Dashboard. Click the Application Work Managers view for the managed server.

C.

Access the Administration Console. Click Monitoring > Work Managers tab for each application.

D.

Access the Administration Console. Click the Deployments page.

E.

Run weblogic.Deployer with the –status parameter.

Question 17

Which three Administration Console tasks require you to obtain the configuration lock of a production mode domain? (Choose three.)

Options:

A.

Stop an application deployment

B.

Create a new JDBC data source

C.

Change a server’s listen port

D.

Suspend a running server

E.

Add a server to an existing cluster

F.

Create a new administrative user

Question 18

Which two metrics are used to monitor and troubleshoot unicast communication in a cluster? (Choose two.)

Options:

A.

Groups

B.

Master

C.

Backup Server

D.

Session Replicas

E.

Local Group Leader

Question 19

You use the Administration console to modify the domain’s security realm. After deleting the default authentication provider, you add a single authentication provider for iplanet LDAP. You then try to reboot your servers with the weblogic user but they all fail to start due to authentication errors.

Identify two possible causes. (Choose two.)

Options:

A.

The weblogic user does not exist in iplanet.

B.

The Administrators group does not exist in iplanet.

C.

A domain must include the default authentication provider.

D.

Iplanet is not a supported LDAP implementation.

E.

LDAP providers cannot be included in the default security realm.

Exam Detail
Vendor: Oracle
Certification: Cloud Application Foundation
Exam Code: 1z0-133
Exam Name: Oracle WebLogic Server 12c: Administration I
Last Update: Nov 24, 2024
1z0-133 Question Answers
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