Oracle Oracle Certifications 1Z0-134 Questions & Answers

• Question 101:

  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.)

  A. Configure the HWLB to use an SSL hardware accelerator and terminate SSL.

  B. Configure the HWLB to use pass-through SSL, configure an SSL hardware accelerator on WebLogic, and terminate SSL.

  C. Configure the HWLB to delegate SSL handling to the WebLogic Proxy Plug-in and terminate SSL.

  D. Configure the HWLB to use pass through SSL to the WebLogic Server that it connects to, and terminate SSL.

  Correct Answer: A

  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

• Question 102:

  You successfully configured a new dynamic cluster but haven't launched any of the dynamic servers. You want to change the configuration for one specific server.

  Which parameter can you modify for that server before starting up the dynamic clustered servers for the first time?

  A. listen port number of individual dynamic servers

  B. machine name that hosts a dynamic server

  C. dynamic server name

  D. replication groups E. No parameters can be modified.

  Correct Answer: E

  A dynamic server is a server instance that has not been individually configured but instead gets its configuration from a server template.

  Reference: http://docs.oracle.com/middleware/1212/wls/WLACH/taskhelp/clusters/ CreateDynamicClusters.html

• Question 103:

  The image below depicts a high-level diagram of configuration auditing within WebLogic Server. When Administrators make configuration changes to the WebLogic Server domain, those changes are sent to the audit provider for logging.

  

  What task must be performed in order to make configuration audit messages in the log meaningful to an observer?

  A. Define unique users for all administrators.

  B. Configure a persistent store for log messages.

  C. Configure the CONFIG severity level.

  D. Define the audit message listener for audit messages.

  Correct Answer: D

  You can configure the Administration Server to emit a log message when a user changes the configuration or invokes management operations on any resource within a domain. For example, if a user disables SSL on a Managed Server in a domain, the Administration Server emits a log message. These messages provide an audit trail of changes within a domain's configuration. You can then create and use a JMX listener and filter that respond to configuration auditing messages.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs81/jmx/notifications.html

• Question 104:

  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.

  Correct Answer: A

  The Watch and Notifications (WandN) 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, WandN 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)

  Incorrect Answers:

  B: WebLogic overload protection is used to protect the Weblogic server from overload. In WebLogic Server, all requests, whether related to system administration or application activity—are processed by a single thread pool. An administrator can throttle the thread pool by defining a maximum queue length.

  C: Manually monitoring takes too much administrative effort.

  D: The server has not failed, it is just experiencing a problem. Server health failure is used to recover failed servers.

  Reference: https://docs.oracle.com/cd/E29542_01/web.1111/e13714/config_watch_notif.htm#WLDFC189

• Question 105:

  You are required to configure a Coherence cluster for a WebLogic domain. Review the image below for the architecture of the WebLogic domain.

  

  The configuration represents the following:

  Two WebLogic clusters of n number of servers each One cluster contains an EAR deployment that contains a WAR module and a GAR module One cluster contains a GAR deployment Application data flows into the cluster with the EAR deployment and then to the cluster with the standalone GAR deployment

  Based on this configuration, what is the typical configuration of a Coherence cluster for this domain?

  A. Single Coherence cluster that includes both WebLogic clusters. EAR cluster is storage-disabled. GAR cluster is storage-enabled.

  B. Single Coherence cluster that includes both WebLogic clusters/ EAR cluster is storage-enabled. GAR cluster is storage-disabled.

  C. A Coherence cluster for each WebLogic cluster. EAR and GAR clusters use a replicated topology with storage enabled.

  D. Single Coherence cluster that includes both WebLogic clusters. EAR and standalone GAR clusters are both storage-enabled.

  Correct Answer: A

  A Coherence cluster can contain any number of managed Coherence servers. The servers can be standalone managed servers or can be part of a WebLogic Server cluster that is associated with a Coherence cluster.

  *

  storage-disabled ?a managed Coherence server that is not responsible for storing data and is used to host Coherence applications (cache clients). A Coherence application GAR is packaged within an EAR and deployed on storage- disabled managed Coherence servers.

  *

  storage-enabled ?a managed Coherence server that is responsible for storing data in the cluster. Coherence applications are packaged as Grid ARchives (GAR) and deployed on storage-enabled managed Coherence servers.

  Reference: https://docs.oracle.com/middleware/1212/wls/CLUST/coherence.htm#CLUST660

• Question 106:

  A Web Module needs specific tuning. The Development team fine tunes the module in the deployment descriptor (weblogic.xml) as follows:

  

  Which two are true? (Choose two.)

  A. MyWorkManager is an application-scoped Work Manager.

  B. Add the line MyWorkManager before tags in weblogic.xml to make the Web Module use the Work Manager MyWorkManager.

  C. MyWorkManager is a Global Work Manager.

  D. MyWorkManager is a Default Work Manager.

  E. Once the application is deployed and started on a Managed WebLogic Server, MyWorkManager will appear under Environment/Work Managers on the WebLogic Console.

  Correct Answer: AB

  A: You can create Work Managers that are available only to a specific application or module. You can define application-scoped Work Managers in the WebLogic Server Administration Console and in the following descriptors:

  weblogic-application.xml weblogic-ejb-jar.xml weblogic.xml

  B: A method is assigned to a Work Manager, using the element in the deployment descriptor.

  Incorrect Answers:

  E: Environment/Work Managers displays the Global work managers.

  Reference: https://docs.oracle.com/cd/E24329_01/web.1211/e24432/self_tuned.htm#CNFGD129

• Question 107:

  What are two differences between a group and a role? (Choose two.)

  A. Groups are static and roles are dynamic and conditional.

  B. Roles can be scoped to applications and groups are only global.

  C. Roles are static and groups are dynamic and conditional.

  D. Groups can be scoped to applications and roles are only global.

  E. Groups can contain roles but roles cannot contain groups.

  Correct Answer: AB

  A security role is a privilege granted to users or groups based on specific conditions. Like groups, security roles allow you to restrict access to WebLogic resources for several users at once. Security roles differ from groups as follows:

  *

  Security roles are computed and granted to users or groups dynamically, based on conditions such as user name, group membership, or the time of day. Groups are static.

  *

  Security roles can be scoped to specific WebLogic resources within a single application in a WebLogic Server domain (unlike groups, which are always scoped to an entire WebLogic Server domain).

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs81/secwlres/secroles.html

• Question 108:

  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.)

  A. Point to Point messaging

  B. Publish Subscribe messaging

  C. Datagram messaging

  D. Persistent messaging

  Correct Answer: C

  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

• Question 109:

  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.)

  A. Back up the contents of your domain.

  B. Use pack and unpack to upgrade each of the servers in the machine.

  C. Shut down the servers in a single machine.

  D. Repeat the process for all machines in the domain.

  E. Restart the servers in the machine.

  F. Repeat the process for all domains in the machine.

  G. Upgrade the servers in the machine.

  Correct Answer: ACDEG

  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

• Question 110:

  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.)

  A. It is not permitted. A multithreaded application cannot access the ConnectionFactory object.

  B. The access to ConnectionFactory object MUST be synchronized.

  C. The ConnectionFactory object can be referenced in a multithreaded application without any special considerations.

  D. Multiple threads trying to use the ConnectionFactory object simultaneously will throw an exception.

  E. In a multithreaded scenario, connection objects cannot be safely created from the ConnectionFactory.

  Correct Answer: B

  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