Refined 1Z0-134 Paper 2021

NEW QUESTION 1
For some reason, servers in your domain are failing. The host machines are pingable and the WebLogic JVM processes are running but the getState() method on the ServerRuntimeMBean reports FAILED.
In the future, when this happens, you want these failed servers to be shut down and then restarted automatically without human intervention. At the same time, you want to constrain how much time will be spent restarting those servers and how many restart attempts will be made.
Pick the two options that would help with this situation. (Choose two.)

• A. For each server (or cluster), set RestartInterval to an appropriate positive integer.
• B. When starting Node Manager, use the WLST nmStart command and pass in a WLST properties object with RestartMax set to an appropriate positive integer.
• C. Start the servers by executing the restartManagedWebLogic.sh script in the domain’s /bin directory.
• D. Make sure all managed servers are members of a cluster with ReplicationGroupsEnabled set to tru

Answer: BC

Explanation:
B: The nmStart command identifies the server instance to start. You define the number of restarts by setting the RestartMax property in a Node Manager startup.properties file. If you use the nmStart command with WLST connected to a Node Manager, Node Manager supports monitoring, stopping, and restarting the Administration Server.
C: The script named startManagedWebLogic can be used to start Managed Servers. On a UNIX system it is located in located in DOMAIN_NAME/bin/startManagedWebLogic.sh.

NEW QUESTION 2
In your production environment, you have deployed an application that is accessing a registered Java EE shared library as well as an application deployment plan. In addition, both the library and the application annotations for some of their configuration properties. You are attempting to understand the current state of the properties that have been used in this deployment.
From greatest to least, what is the correct order of precedence that is used by WebLogic Server when applying configuration properties during deployment? (Choose the best
answer.)

• A. Deployment Plan, Application descriptors, Library descriptors, Application annotations, Library annotations
• B. Deployment Plan, Application annotations, Library annotations, Application descriptors, Library descriptors
• C. Deployment Plan, Library descriptors, Application descriptors, Library annotations, Application annotations
• D. Deployment Plan, Application descriptors, Application annotations, Library descriptors, Library annotations
• E. Deployment Plan, Library descriptors, Library annotations, Application descriptors, Application annotations

Answer: D

Explanation:
The elements of the Enterprise application's descriptor itself have precedence over all elements in the library descriptors. The deployment descriptor can still override values defined in the annotation.

NEW QUESTION 3
You are concerned with messages being received systematically. You designed Message-Driven beans (MDB) to guarantee the most reliable way to consume messages.
In which three scenarios would JMS always redeliver a message? (Choose three.)

• A. when the onMessaqe() method of the MDB throws a Java error
• B. when the transaction the MDB participates in eventually fails and rolls back
• C. when the onMessage() method fails to acknowledge the reception of the message
• D. when messages are not being sent as part of a transaction
• E. when messages are non-persistent

Answer: BCD

Explanation:
An MDB pool processes each message at least once. Potentially, a message can be process more than once:
* If an application fails, a transaction rolls back, or the hosting server instance fail during or after the onMessage() method completes but before the message is acknowledged or committed, the message will be redelivered and processed again.
* Non-persistent messages are also redelivered in the case of failure, except for the case where the message's host JMS server shuts down or crashes, in which case the messages are destroyed.
To ensure that a message is processed exactly once, use container-managed transactions so that failures cause transactional MDB work to rollback and force the message to be redelivered.

NEW QUESTION 4
Review the diagram below. It depicts the following:

Assuming the next request for an HTTP session attribute is a new attribute that is not stored in a near-cache, the client’s session attribute is fetched from the remaining storage-enabled server in cluster 2.
Why is the session attribute retrieved from this other server’s cache? (Choose the best answer.)

• A. Coherence*Web stores sessions in a distributed cache on the back end and the request fails over to the new location after partition re-balancing takes place.
• B. Coherence*Web stores sessions in a replicated cache on the back end and the request fails over to the new location automatically.
• C. Coherence*Web stores sessions in a shared disk cache on the back end and Coherence*Web automatically load balances requests.
• D. Coherence*Web stores sessions in a cache that is backed by a database cache loade
• E. The data is fetched from the database and placed into the cache on the new server.

Answer: A

NEW QUESTION 5
Your development team is considering several different types of new applications. You have been asked to advise them concerning which types can be deployed in WebLogic Server leveraging the Production Redeployment feature.
Which application deployment type is NOT supported for Production Redeployment? (Choose the best answer.)

• A. enterprise applications (EAR) that contain a Coherence Grid Archive (GAR) module
• B. web service applications that are conversational or that use reliable messaging
• C. standalone Enterprise Java Bean (EJB) applications
• D. enterprise applications (EAR) that are accessed by inbound JMS messages

Answer: A

NEW QUESTION 6
Your WebLogic domain is experiencing a problem. You want to use the WebLogic Diagnostic Framework (WLDF) to diagnose the problem. You have a support case open with Oracle Support, and they have requested a diagnostic image of your server that is experiencing the problem.
The problem is not predictable or reproducible on-demand, but you noticed that the number of requests waiting to execute increases dramatically when the problem does occur. The problem also seems to occur at any time of the day or night.
How would you approach reliably capturing a diagnostic image that contains data that is relevant to the problem that is occurring?

• A. Configure a WLDF watch that triggers a diagnostic image action when the number of requests waiting to execute exceeds a certain threshold.
• B. Configure WebLogic overload protection to automatically trigger a diagnostic image when the number of requests waiting to execute exceeds a certain threshold.
• C. Manually monitor the number of requests waiting to execute and create a diagnostic image when you see the number of requests waiting to execute exceeds a certain threshold.
• D. Configure the server health failure action to trigger a diagnostic image when the number of requests waiting to execute exceeds a certain threshold.

Answer: A

Explanation:
The Watch & Notifications (W&N) system consumes data generated by other parts of WLDF (MBean data through the Harvester, as well as data from Instrumentation and/or Log events) and applies configured rules against that data. If a rule evaluates to true, W&N can generate a notification over SNMP, SMTP, JMX, JMS, or any combination therein. WLDF supports the following types of notifications:
Diagnostic Images
Java Management Extensions (JMX) Java Message Service (JMS)
Simple Mail Transfer Protocol (SMTP), for example, e-mail Simple Network Management Protocol (SNMP)

NEW QUESTION 7
You have enabled JMS Diagnostic Logging and are analyzing JMS Message delivery and acknowledgment using the generated log entries. For this purpose, you are tracking individual message IDs.
What is the default format of the message ID that you would expect to see in the log? (Choose the best answer.)

• A. Hexadecimal (e.g., 0xCAE987A401)
• B. Numeric (e.g., 9018199222001)
• C. Floating Point (e.g., 10029920902.10111)
• D. Doubly dot delimited (e.g., 683871.11228587923566.0)

Answer: D

Explanation:
Example: <ID:<327315.1116014813453.0>>

NEW QUESTION 8
You intend to introduce ordering in message processing for your JMS destination by creating a destination key.
Which statement is true about the JMS Destination Key configuration? (Choose the best answer.)

• A. A JMS Destination Key cannot be specified using WLST.
• B. A JMS Destination Key cannot be used to sort messages in a Last In First Out order.
• C. A JMS Destination Key allows a user-defined sort key.
• D. A Destination Key can be applied to the message bod

Answer: A

Explanation:
The WebLogic Server Administration Console enables you to configure, modify, target, and delete destination key resources in a system module.

NEW QUESTION 9
You are managing a WebLogic domain that has the default built-in diagnostic module configured for each server in the domain.
You have the following requirements:
What are two approaches you can apply to achieve this result? (Choose two.)

• A. Clone the built-in module, add now metrics to it, deactivate the existing module, and activate your new module.
• B. Leave the built-in module, create a new module and add metrics to it, and activate your new module alongside the built-in module.
• C. Leave the built-in module, create an external resource descriptor module and add metrics to it, and activate your new module alongside the built-in module.
• D. Remove the built-in module, create an external resource descriptor module and add built-in and new metrics to it, and activate your new module alongside the built-in module.

Answer: BC

Explanation:
In a given domain, you can create multiple diagnostic system modules with distinct configurations. You can target multiple diagnostic system modules to any given server or cluster.
Note: To configure and use the Instrumentation, Harvester, and Watch and Notification components at the server level, you must first create a system resource called a diagnostic system module, which will contain the configurations for all those components. The configuration of diagnostic system module is defined in a resource descriptor. A resource descriptor can be either configured or external.

NEW QUESTION 10
You are troubleshooting an issue with a WLS data source. However, your attempt to execute a manual test on the connection pool fails when you invoke the testPool() method on the corresponding JDBCDataSourceRuntimeMBean. Which configuration condition would contribute to the failure of executing the test? (Choose the best answer.)

• A. The TestTableName property is either not set or is set to an invalid SQL statement.
• B. The TestFrequencySeconds property is set to a value greater than 0.
• C. The TestReservedConnections property is enabled.
• D. The ManualTestEnabled property is set to false.
• E. The ConnectionReserveTimeoutSeconds property is set to a value other than -1.

Answer: A

Explanation:
testPool tests the connection pool in the data source by reserving and releasing a connection from it.
TestTableName is the name of the database table to use when testing physical database connections. This name is required when you specify a Test Frequency and enable Test Reserved Connections, Test Created Connections, and Test Released Connections.

NEW QUESTION 11
Poor ventilation and cooling in and around the machine that hosts your administration server and a clustered managed server causes a local hard drive failure and thus both servers crash as well.
This is the first time this crash has occurred in production but an automatic Whole Server Migration kicks in as expected. The clustered server migrates to a machine on which it has never run before, and for that reason the server cannot be started on this new machine.
Which action could have helped to launch this migrated clustered server? (Choose the best answer.)

• A. Shut down and relaunch the Node Manager.
• B. Ensure that the Administration Server is up when the server migration is being performed.
• C. First restart the Administration Server, remove this managed server from the cluster, restart it manually, and then target it back to the cluster.
• D. Use a shared disk/NFS for all the migratable servers in the cluster.
• E. Copy the Node Manager security files to the new machine that hosts your migrated serve

Answer: D

Explanation:
There is no built-in mechanism for transferring files that a server depends on between machines. Using a disk that is accessible from all machines is the preferred way to ensure file availability. If you cannot share disks between servers, you must ensure that the contents of domain_dir/bin are copied to each machine.

NEW QUESTION 12
In order to leverage replication and high availability features of your back-end database, among other benefits, you are configuring a JDBC TLOG store to persist transaction logs.
Since something went wrong during the setup of the TLOG, you are reviewing the configuration considerations for TLOG.
Which two guidelines are true for configuring JDBC TLOG stores? (Choose two.)

• A. Only one JDBC TLOG store can be configured per WebLogic Server.
• B. JDBC TLOG stores should only be configured for RAC databases.
• C. Only globally-scoped (not application-scoped) data sources can be targeted to a JDBC TLOG store.
• D. Multiple WebLogic Servers can share the same JDBC TLOG stor

Answer: AC

Explanation:
A: Only one JDBC TLOG store can be configured per WebLogic Server. Conversely, multiple WebLogic Servers can not share a JDBC TLOG store.
C: Only globally-scoped (not application-scoped) data sources can be targeted to a JDBC TLOG store.

NEW QUESTION 13
You are considering targeting your JMS servers to dynamic clusters to benefit from dynamic scaling. However, you have been advised to keep in mind some of the associated limitations.
What are two valid limitations and considerations for clustered JMS services? (Choose two.)

• A. Store-and-Forward agents cannot be targeted to a cluster (dynamic or mixed).
• B. WLST in offline mode does not support the get and set commands to target JMS servers to a dynamic cluster.
• C. A sub-deployment cannot be targeted to a duster.
• D. Targeting a messaging bridge to a dynamic cluster is not supporte

Answer: AD

Explanation:
A: Store-and-Forward (SAF) Agents cannot be targeted to a Dynamic or Mixed cluster. You can target SAF Agents to Configured clusters using the default store.
D: Targeting a messaging bridge to a mixed or dynamic cluster is not supported.

NEW QUESTION 14
You are managing and monitoring durable subscribers for your JMS topics to ensure that all the subscribers would receive persistent messages.
However, JMS connections are currently restricted, so only one connection with the same client ID could exist in the scope of your cluster.
On which page of the Administration Console can you set Client ID Policy to unrestricted in order to lift this restriction? (Choose the best answer.)

• A. Topic > Monitoring > Durable Subscribers
• B. Connection Factory > Configuration > Client
• C. Topic > Configuration > Thresholds and Quotas
• D. Topic > Configuration > Overrides
• E. Topic > Configuration > Durable Subscribers
• F. JMS Server > Configuration > Durable Subscribers

Answer: B

Explanation:
You can find help on Client ID Policy configuration through the following path:
OTN Home > Oracle WebLogic Server 12.1.1.0 Documentation > Administration Console Online Help > JMS Connection Factory: Configuration: Client

NEW QUESTION 15
You are implementing leasing functionality within your environment to ensure exclusive ownership of a cluster-wide entity.
Which type of leasing requires that Node Manager is configured and running? (Choose the best answer.)

• A. high-availability database leasing
• B. high-consensus leasing
• C. non-database consensus leasing
• D. high-availability in-memory leasing

Answer: C

Explanation:
Setting Migration Basis to Consensus leasing means that the member servers maintain leasing information in-memory, which removes the requirement of having a high-availability database to use leasing. This version of leasing requires that you use Node Manager to control servers within the cluster.

NEW QUESTION 16
You want to use the WebLogic Diagnostic Framework (WLDF) to monitor some historic MBean attribute values in your WebLogic domain.

Which WLDF component do you use to accomplish this? (Choose the best answer.)

• A. the Harvester with a metric collection definition
• B. a Watch on a metric collection definition
• C. the MBean Collector with a metric collection definition
• D. the Archiver with a metric collection definition

Answer: D

Explanation:
The Archive component of the WebLogic Diagnostics Framework (WLDF) captures and persists all data events, log records, and metrics collected by WLDF from server instances and applications running on them.
The Archive provides access interfaces so that the Accessor may expose any of the persisted historical data including logged event data and persisted metrics.

NEW QUESTION 17
You are creating a new domain with WLST.
Identify three parameters that can be customized with the setOption command. (Choose three.)

• A. the JDK that will be used to start the domain
• B. the domain name
• C. whether or not the domain will run in production mode
• D. the default persistent store type for the domain
• E. whether or not to automatically start the Node Manager
• F. the default diagnostic profile for the domain

Answer: ABC

Explanation:
setOption sets options related to a domain creation or update. Syntax: setOption(optionName, optionValue)
Option names include:
* JavaHome—Home directory for the JVM to be used when starting the server. The default for this option depends on the platform on which you install WebLogic Server. Update JavaHome to point to the jre directory for the JDK that you are using for WebLogic Server.
* DomainName—Name of the domain.
* ServerStartMode—Mode to use when starting the server for the newly created domain. This value can be dev (development) or prod (production). This option defaults to dev.

NEW QUESTION 18
You need to make sure that a JMS Message never expires.
What value should you set for the JMSExpiration header? (Choose the best answer.)

• A. 999
• B. 1000
• C. 1

Answer: A

Explanation:
WebLogic JMS calculates the JMSExpiration value as the sum of the application's time-to-live and the current GMT. If the application specifies time-to-live as 0, JMSExpiration is set to 0, which means the message never expires.

NEW QUESTION 19
You are tasked with doing a rolling upgrade of a production domain that will minimize user interruptions. What are two characteristics of a rolling upgrade? (Choose two.)

• A. Configuration changes can be made during the Rolling Update process.
• B. A major upgrade, for example 11g to 12c, can be accomplished with a Rolling Update.
• C. The machines can be upgraded in any order.
• D. The machine hosting the Administration Server must be upgraded first.
• E. Avoid configuration changes until all the servers in the domain have been upgrade

Answer: DE

Explanation:
D: The rolling upgrade process includes stopping the Administration Server, installing the upgrade, restarting the Administration Server, and then doing the same for each Managed Server in the cluster.
E: You should not make configuration changes during the upgrade process until all the servers in the cluster have been upgraded. This is especially true for new configuration options.
Note: Rolling Upgrade is the process of upgrading a running WebLogic Server cluster with a patch, maintenance pack, or minor release without shutting down the entire cluster or domain. During the rolling upgrade of a cluster, each server in the cluster is individually upgraded and restarted while the other servers in the cluster continue to host your application.

NEW QUESTION 20
Which two automatic migration scenarios require node manager for all migratable services? (Choose two.)

• A. Consensus leasing
• B. Database leasing with no pre and post migration scripts
• C. Database leasing with pre and post migration scripts
• D. Synchronous leasing

Answer: AC

Explanation:
When using automatic service migration, the Node Manager is required to get health monitoring information about the member servers involved, as follows:
* Consensus leasing – Node Manager must be running on every machine hosting managed servers within the cluster.
* Database leasing – Node Manager must be running on every machine hosting managed servers within the cluster only if pre/post-migration scripts are defined. If pre/post-migrations are not defined, then Node manager is not required. References:

NEW QUESTION 21
You are asked to configure Node Manager for your production environment. You are considering whether to use the Java version or the script-based version of Node Manager.
Which statement correctly describes the difference between the two versions?

• A. If you are installing WebLogic Server on a Windows system, you must use the Java version of Node Manager.
• B. The script-based version of Node Manager can be used in conjunction with inetd on supported UNIX systems.
• C. The script-based version of Node Manager requires a larger footprint than the Java version.
• D. When Node Manager is used for consensus leasing, you may see faster performance with the script-based version.

Answer: A

Explanation:
Java-based Node Manager runs within a Java Virtual Machine (JVM) process. It is recommended that you run it as a Windows service on Windows platforms and as an operating system service on UNIX platforms.
For UNIX and Linux systems, WebLogic Server provides a script-based version of Node Manager.

NEW QUESTION 22
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