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Oracle
1Z0-599 Exam
Oracle WebLogic Server 12c Essentials
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Questions & Answers
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Question: 1
You deploy more than one applicaton to the same WebLogic container. The security is set on JavaEE
level and all deployed JavaEE applicatons use the same security roles.
What is your recommendaton for an architecture with those requirement
A. Combine all applicatons into a single one.
B. Defne global roles on the WebLogic Domain level.
C. Use Ms Actve Directory to keep the roles there.
D. Use Oracle Identty and Access Management soluton to simplify the management.
E. Keep role mapping in the external WebLogic Role Mapped developed for that soluton.
Answer: B
Explanatonn
Noten
* Types of Security Rolesn Global Roles and Scoped Roles
There are two types of security roles in WebLogic Servern
/ A global security role can be used in any security policy. Oracle provides several default global roles
that you can use out of the box to secure your WebLogic resource
/ A scoped role can be used only in policies that are defned for a specifc instance of a WebLogic
resource (such as a method on an EJB or a branch of a JNDI tree). You might never need to use
scoped roles. They are provided for their fexibility and are an extra feature for advanced customers.
Incorrectn
Not En Role mapping is the process whereby principals (users or groups) are dynamically mapped to
security roles at runtme. In WebLogic Server, a Role Mapping provider determines what security
roles apply to the principals stored a subject when the subject is atemptng to perform an operaton
on a WebLogic resource. Because this operaton usually involves gaining access to the WebLogic
resource, Role Mapping providers are typically used with Authorizaton providers.
Question: 2
When your WebLogic Server soluton needs to be scaled out with additonal capacity and you don’t
want to add additonal hardware, which three techniques should you us?
A. Assign more than one managed server to a physical hardware that allows beter CPU utlizaton.
B. Assign more than one applicaton to one managed server to beter utlize threads within a single
JVM process.
C. Assign the same applicaton to more than one managed server to load balance requests between
servers.
D. Assign the same heap size to the managed server across the cluster for easier control of memory
footprint
E. Create a virtualized environment with hypervisor for an easier soluton
Question: 3
Answer: B, D, E

A highly available WebLogic cluster in UNIX is confgured for automatc server migraton. Node
Managed is confgured on both machines to start managed servers.
How should you simulate a managed server failure to test whether automatc server migraton is
working?
A. Shut down the managed server from the WebLogic console.
B. Shut down the managed server using the WLST command through Node Manager.
C. Run "kill -9" once to kill the managed server process.
D. Run "kill -9" to kill the managed server process, and run "kill -9" one more tme if the managed
server is restartng.
Answer: A
Explanatonn
Noten
* It is recommended that you shutdown WebLogic Server instances through the Administraton
Console.
* If automatc server migraton is enabled, the servers are required to contact the cluster leader and
renew their leases periodically. Servers will shut themselves down if they are unable to renew their
leases. The failed servers will then be automatcally migrated to the machines in the majority
partton.
Question: 4
A customer claims that while redeploying a web applicaton in the producton system all their
customers are having to log in again. What do you recommend?
A. Sessions can't be preserved when redeploying applicatons. The customer needs to consider
redeployment during late nights when the trafc is low.
B. Change the fag responsible for the development mode of their environment. In the producton
mode, all sessions are preserved while redeploying applicaton.
C. Change Hotspot to JRockit. Sessions can't be preserved on HotSpot when redeploying applicaton.
D. Use fag -version when redeploying the applicaton. This will switch on the Side By Side
deployment feature and preserve existng sessions.
E. Open a service request with Oracle Support. This is unexpected behavior. Sessions are preserved
without any extra setngs.
Answer: D
Explanatonn
Restrictons on Producton Redeployment Updates
WebLogic Server can host a maximum of two diferent versions of an applicaton at one tme.
Noten
* When you redeploy a new version of an applicaton, you cannot changen
An applicaton's deployment targets
An applicaton's security model

A Web applicaton's persistent store setngs
To change any of the above features, you must frst undeploy the actve version of the applicaton.
Incorrectn
* (not A)
Producton redeployment enables you to update and redeploy an applicaton in a producton
environment without stopping the applicaton or otherwise interruptng the applicaton's availability
to clients. Producton redeployment saves you the trouble of scheduling applicaton downtme,
setng up redundant servers to host new applicaton versions, manually managing client access to
multple applicaton versions, and manually retring older versions of an applicaton.
* (not C) Not dependant on whether the applicaton is JRockit or Hotspot.
* (not E)
The producton redeployment strategy is supported forn
Standalone Web Applicaton (WAR) modules and enterprise applicatons (EARs) whose clients access
the applicaton via a Web applicaton (HTTP).
Enterprise applicatons that are accessed by inbound JMS messages from a global JMS destnaton, or
from inbound JCA requests.
All types of Web Services, including conversatonal and reliable Web Services, but not 8.x Web
Services.
Producton redeployment is not supported forn
Standalone EJB or RAR modules. If you atempt to use producton redeployment with such modules,
WebLogic Server rejects the redeployment request. To redeploy such modules, remove their version
identfers and explicitly redeploy the modules.
Applicatons that use JTS drivers. For more informaton on JDBC applicaton module limitatons, see
JDBC Applicaton Module Limitatons in Confguring and Managing JDBC Data Sources for Oracle
WebLogic Server.
Applicatons that obtain JDBC data sources via the DriverManager API; in order to use producton
redeployment, an applicaton must instead use JNDI to look up data sources.
Applicatons that include EJB 1.1 container-managed persistence (CMP) EJBs. To use producton
redeployment with applicatons that include CMP EJBs, use EJB 2.x CMP instead of EJB 1.1 CMP.
Referencen Reference; Deploying Applicatons to Oracle WebLogic Server 12c, Redeploying
Applicatons in a Producton Environment
Question: 5
A common approach to solve applicaton performance issues is to add more hardware. Which two
reasons describe why this alone does not always solve performance problems?
A. There may be a botleneck in the applicaton that additonal hardware would not solve.
B. Adding more hardware is costly and tme consuming.
C. Adding hardware at the applicaton layer may place additonal load on an already overloaded
database, network appliance, or storage system.
D. Adding more hardware may introduce new confguraton requirements that need to be tested.
Question: 6
Answer: A,C

A customer has a critcal, performance-sensitve web applicaton that connects to a multnode Oracle
RAC database. Which feature of WebLogic can provide signifcant performance beneft?
A. The Web Session Afnity feature of Actve GridLink for RAC
B. WebLogic Clustering
C. The Transacton Afnity feature of Actve GridLink for RAC
D. Coherence*Web Session Replicaton
Answer: A
Explanatonn
Referencen Oracle WebLogic Server Actve GridLink for Oracle Real Applicaton Clusters(RAC)
Question: 7
A customer needs to implement a Highly Available soluton for JMS that has a primary data center
and a backup. Which three steps would you perform when designing your soluton?
A. Store Transacton Logs in a database and use Database stores for JMS to make replicaton between
sites easier.
B. Use fle based Transacton Logs and JMS stores and implement a separate replicaton soluton for
fles in additon to database in case database replicaton fails.
C. Implement Oracle RAC at each site to provide a highly available soluton within each datacenter.
D. Confgure Whole Server Migraton to migrate WebLogic Managed Servers from the primary to the
secondary site.
E. Confgure Automatc Service Migraton for JMS high availability within a datacenter.
Explanatonn
Noten
Answer: A, C, E

Question: 8
Which WebLogic optmizaton allows one non-XA resource to partcipate in a distributed transacton?
A. enabling Pinned to Thread
B. enabling Logging Last Resource
C. increasing the Statement cache size
D. setng the statement cache type to LRU
E. setng the inital and maximum capacity to the same number
Answer: B
Explanatonn
htpn//my-java-planet.blogspot.com/2014/04/which-weblogic-optmizaton-allows-one.html
Question: 9
A customer has a Stock Watch applicaton that publishes stock recommendatons to diferent
customers and programs. The stock recommendaton message should be processed by only one of
the JMS Servers in the cluster. Which JMS model should be used?
A. JMS Queue
B. Distributed JMS Queue
C. Uniform Distributed Topic
D. Parttoned Distributed Topic
Answer: A
Explanatonn
JMS queue
A staging area that contains messages that have been sent and are waitng to be read. Note that,
contrary to what the name queue suggests, messages don't have to be delivered in the order sent. A
JMS queue only guarantees that each message is processed only once.
Incorrectn
Not Bn (Only one queue required)
* A distributed destnaton is a set of destnatons (queues or topics) that are accessible as a single,
logical destnaton to a client. A distributed destnaton has the following characteristcsn
It is referenced by its own JNDI name.
Members of the set are usually distributed across multple servers within a cluster, with each
destnaton member belonging to a separate JMS server.
* A distributed queue is a set of physical JMS queue members. As such, a distributed queue can be
used to create a QueueSender, QueueReceiver, and a QueueBrowser. The fact that a distributed
queue represents multple physical queues is mostly transparent to your applicaton.
Not Topicn
JMS topic
A distributon mechanism for publishing messages that are delivered to multple subscribers.

Question: 10
A customer has a critcal, performance-sensitve web applicaton that connects to a multmode
Oracle RAC database. Which feature of WebLogic can provide signifcaton beneft?
A. The Web Session Afnity feature of Actve GridLink for RAC.
B. WebLogic Clustering
C. The Transacton Afnity feature of Actve GridLink for RAC
D. Coherence*Web Session Replicaton
Answer: C
Explanatonn
Actve GridLink for Oracle RAC
In Oracle WebLogic Server 10.3.4, a single data source implementaton has been introduced to
support an Oracle RAC cluster. It responds to FAN events to provide Fast Connecton Failover (FCF),
Runtme Connecton Load-Balancing (RCLB), and RAC instance graceful shutdown. XA afnity is
supported at the global transacton Id level. The new feature is called WebLogic Actve GridLink for
RAC; which is implemented as the GridLink data source within WebLogic Server.
Noten
* The WebLogic Server JDBC subsystem has supported Oracle RAC since WLS version 9.0, originally
developed for Oracle9i RAC. This support is based on a partcular type of data source confguraton,
called a mult data source. A mult data source is a data source abstracton over one or more
individual data sources. It serves JDBC connectons from each of the member data sources according
to a specifed policy. A RAC mult data source confguraton requires that each member data source
obtain connectons to a partcular RAC instance.
Referencen How-Ton Use Oracle WebLogic Server with a JDBC GridLink Data Source

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