You need to make sure that a JMS Message never expires.
What value should you set for the JMSExpiration header? (Choose the best answer.)
Correct Answer:
A
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.
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?
Correct Answer:
A
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)
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.)
Correct Answer:
D
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.
Your WebLogic Server (WLS) environment consists of multiple domains. Which is a true statement about WLS domains? (Choose the best answer.)
Correct Answer:
A
You can use a single Oracle WebLogic Server installation to create and run multiple domains, or you can use multiple installations to run a single domain.
You are creating and configuring a production WebLogic Server (WLS) domain that is highly available. Which three WebLogic Server features allow you to best accomplish this requirement? (Choose three.)
Correct Answer:
BCE
B Load balancing is the even distribution of jobs and associated communications across the computing and networking resources in your environment.
C: In a WebLogic Server cluster, application processing can continue when a server instance fails.
E: Migration in WebLogic Server is the process of moving a clustered WebLogic Server instance or a component running on a clustered instance elsewhere if failure occurs. This is called Whole-server migration.
