1z0-134: Oracle WebLogic Server 12c: Advanced Administrator II

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.)

Topic > Monitoring > Durable Subscribers
Connection Factory > Configuration > Client
Topic > Configuration > Thresholds and Quotas
Topic > Configuration > Overrides
Topic > Configuration > Durable Subscribers
JMS Server > Configuration > Durable Subscribers

Correct 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: ClientReference: http://docs.oracle.com/cd/E24329_01/apirefs.1211/e24401/pagehelp/JMSjmsconnectionjmsconnectionfactoryconfigclientparamstitle.html

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

Reference: http://docs.oracle.com/cd/E24329_01/apirefs.1211/e24401/pagehelp/JMSjmsconnectionjmsconnectionfactoryconfigclientparamstitle.html

Examine the domain diagram:

What is the correct path within the configuration hierarchy to the MBean that contains the log rotation parameters for server04? (Choose the best answer.)

/Servers/server04/Log/server04
/server04/log/rotation
/Cluster01/server04/log
/Machine02/server04/log
/Logs/server04
/TestDomain/server04/log
/server04/log

Correct answer: A

Explanation:

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

Consensus leasing
Database leasing with no pre and post migration scripts
Database leasing with pre and post migration scripts
Synchronous leasing

Correct 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. Reference: https://docs.oracle.com/cd/E13222_01/wls/docs103/cluster/service_migration.html

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.

Reference: https://docs.oracle.com/cd/E13222_01/wls/docs103/cluster/service_migration.html

Which two statements are true about the role of cluster master in whole server migration? (Choose two.)

There is exactly one cluster master in the cluster at a given point of time.
The cluster master must host all the pinned services in the cluster.
Any managed server in the cluster can serve as the cluster master.
A cluster master must always be different from a singleton master.
The cluster master must always be started with the node manager.

Correct answer: AC

Explanation:

One server instance in a cluster that contains migratable servers acts as the cluster master and orchestrates the process of automatic server migration, in the event of failure. Any Managed Server in a cluster can serve as the cluster master, whether it hosts pinned services or not. Note: Any server instance in the cluster can serve as the cluster master. When you start a cluster that contains migratable servers, the first server to join the cluster becomes the cluster master and starts up the cluster manager service. If a cluster does not include at least one migratable server, it does not require a cluster master, and the cluster master service does not start up. Reference: https://docs.oracle.com/cd/E12839_01/web.1111/e13709/migration.htm#CLUST285

One server instance in a cluster that contains migratable servers acts as the cluster master and orchestrates the process of automatic server migration, in the event of failure.

Any Managed Server in a cluster can serve as the cluster master, whether it hosts pinned services or not.

Note: Any server instance in the cluster can serve as the cluster master. When you start a cluster that contains migratable servers, the first server to join the cluster becomes the cluster master and starts up the cluster manager service. If a cluster does not include at least one migratable server, it does not require a cluster master, and the cluster master service does not start up.

Reference: https://docs.oracle.com/cd/E12839_01/web.1111/e13709/migration.htm#CLUST285

You are trying to set up a JMS Session with a specified acknowledgment mode. You want the application that receives the message to explicitly take care of the acknowledgment.

Which option represents a valid choice for the acknowledgment mechanism that you can use? (Choose the best answer.)

AUTO_ACKNOWLEDGE
CLIENT_ACKNOWLEDGE
DUPS_OK_ACKNOWLEDGE
DEFAULT_ACKNOWLEDGE

Correct answer: B

Explanation:

With CLIENT_ACKNOWLEDGE the Session object relies on the application to call an acknowledge method on a received message. Once the method is called, the session acknowledges all messages received since the last acknowledge. Incorrect Answers:A: With CLIENT_ACKNOWLEDGE the Session object acknowledges receipt of a message once the receiving application method has returned from processing it.C: With DUPS_OK_ACKNOWLEDGE the Session object acknowledges receipt of a message once the receiving application method has returned from processing it;duplicate acknowledges are permitted. D: There is no acknowledge mode named DEFAULT_ACKNOWLEDGE.Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

With CLIENT_ACKNOWLEDGE the Session object relies on the application to call an acknowledge method on a received message. Once the method is called, the session acknowledges all messages received since the last acknowledge.

Incorrect Answers:

A: With CLIENT_ACKNOWLEDGE the Session object acknowledges receipt of a message once the receiving application method has returned from processing it.

C: With DUPS_OK_ACKNOWLEDGE the Session object acknowledges receipt of a message once the receiving application method has returned from processing it;

duplicate acknowledges are permitted.

D: There is no acknowledge mode named DEFAULT_ACKNOWLEDGE.

Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

You created a script to monitor your WebLogic Server WLS Execute Thread:

Here is a message in your ExecuteThread.log file:

What is the value of xxxx if the thread has been running a request for twenty minutes, assuming a default configuration?

SRANDBY
ACTIVE
STUCK
RUNNING
WAITING
ADMIN
FAILED

Correct answer: C

Explanation:

This thread is considered Stuck by WebLogic because it's been running for over the time defined in MaxStuckThreadTime (600 seconds by default). Weblogic Server waits for this time to be reached before marking a thread as stuck if the thread is still working after this time. Example: [STUCK] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)' id=73 idx=0x128 nid=13410 prio=1 alive, in native, daemonReference: https://blogs.oracle.com/WebLogicServer/entry/analyzing_a_stuck_weblogic_execute

This thread is considered Stuck by WebLogic because it's been running for over the time defined in MaxStuckThreadTime (600 seconds by default). Weblogic Server waits for this time to be reached before marking a thread as stuck if the thread is still working after this time.

Example: [STUCK] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)' id=73 idx=0x128 nid=13410 prio=1 alive, in native, daemon

Reference: https://blogs.oracle.com/WebLogicServer/entry/analyzing_a_stuck_weblogic_execute

A current production WebLogic Server (WLS) domain needs to be upgraded without affecting the users. What are the five steps to follow for a Rolling Update?

(Choose five.)

Back up the contents of your domain.
Use pack and unpack to upgrade each of the servers in the machine.
Shut down the servers in a single machine.
Repeat the process for all machines in the domain.
Restart the servers in the machine.
Repeat the process for all domains in the machine.
Upgrade the servers in the machine.

Correct answer: ACDEG

Explanation:

A: Before you begin the upgrade process, make sure that you take any necessary precautions such as:Back up your applications, database schema, other application data, and domains. If required, obtain latest third party plug-ins or components that are compatible with required non-Oracle components. For example, Apache Web Server libraries. CGED: 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 (machine). Reference: http://docs.oracle.com/cd/E14571_01/web.1111/e13754/rolling_upgrade.htm#WLUPG268

A: Before you begin the upgrade process, make sure that you take any necessary precautions such as:

Back up your applications, database schema, other application data, and domains.
If required, obtain latest third party plug-ins or components that are compatible with required non-Oracle components. For example, Apache Web Server libraries.

CGED: 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 (machine).

Reference: http://docs.oracle.com/cd/E14571_01/web.1111/e13754/rolling_upgrade.htm#WLUPG268

You have a multithreaded application that looks up the WebLogic JMS ConnectionFactory object from the JNDI tree.

Which statement is correct in this scenario? (Choose the best answer.)

It is not permitted. A multithreaded application cannot access the ConnectionFactory object.
The access to ConnectionFactory object MUST be synchronized.
The ConnectionFactory object can be referenced in a multithreaded application without any special considerations.
Multiple threads trying to use the ConnectionFactory object simultaneously will throw an exception.
In a multithreaded scenario, connection objects cannot be safely created from the ConnectionFactory.

Correct answer: B

Explanation:

A connection factory supports concurrent use, enabling multiple threads to access the object simultaneously. A session and its message producers and consumers can only be accessed by one thread at a time (i.e. the access must be synchronized). Their behavior is undefined if multiple threads access them simultaneously. Incorrect Answers:A, E: A connection factory supports concurrent use, enabling multiple threads to access the object simultaneously.C, D: A session and its message producers and consumers can only be accessed by one thread at a time. Their behavior is undefined if multiple threads access them simultaneously. Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

A connection factory supports concurrent use, enabling multiple threads to access the object simultaneously.

A session and its message producers and consumers can only be accessed by one thread at a time (i.e. the access must be synchronized). Their behavior is undefined if multiple threads access them simultaneously.

Incorrect Answers:

A, E: A connection factory supports concurrent use, enabling multiple threads to access the object simultaneously.

C, D: A session and its message producers and consumers can only be accessed by one thread at a time. Their behavior is undefined if multiple threads access them simultaneously.

Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

You are planning to use WebLogic JMS for implementing my enterprise messaging architecture. Which messaging paradigm is invalid in this context? (Choose the best answer.)

Point to Point messaging
Publish Subscribe messaging
Datagram messaging
Persistent messaging

Correct answer: C

Explanation:

Incorrect Answers:A, B: JMS supports two messaging models: point-to-point (PTP) and publish/subscribe (pub/sub).D: As per the “Message Delivery Mode” section of the JMS Specification, messages can be specified as persistent or non-persistent.Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

Incorrect Answers:

A, B: JMS supports two messaging models: point-to-point (PTP) and publish/subscribe (pub/sub).

D: As per the “Message Delivery Mode” section of the JMS Specification, messages can be specified as persistent or non-persistent.

Reference: http://docs.oracle.com/cd/E12840_01/wls/docs103/jms/fund.html

A hardware load-balancer (HWLB) is positioned as the primary entry point into your WebLogic Server domain. Aspects of your application use SSL to protect data on the network from your clients to your domain.

Which configuration provides the best performance for your domain? (Choose the best answer.)

Configure the HWLB to use an SSL hardware accelerator and terminate SSL.
Configure the HWLB to use pass-through SSL, configure an SSL hardware accelerator on WebLogic, and terminate SSL.
Configure the HWLB to delegate SSL handling to the WebLogic Proxy Plug-in and terminate SSL.
Configure the HWLB to use pass through SSL to the WebLogic Server that it connects to, and terminate SSL.

Correct answer: A

Explanation:

In most of the architectures, the SSL is terminated at the hardware load balancer for performance reasons and allows the internal traffic to use HTTP for communication. Reference: http://ora-soa.blogspot.se/2012/10/weblogic-setting-wrong-protocol-in-wsdl.html

In most of the architectures, the SSL is terminated at the hardware load balancer for performance reasons and allows the internal traffic to use HTTP for

communication.

Reference: http://ora-soa.blogspot.se/2012/10/weblogic-setting-wrong-protocol-in-wsdl.html

Vendor:	Oracle
Exam Code:	1z0-134
Exam Name:	Oracle WebLogic Server 12c: Advanced Administrator II
Date:	Jan 28, 2020
File Size:	973 KB

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