Oracle Oracle Certifications 1Z0-134 Questions & Answers

• Question 91:

  What does the WLST command pwd() do?

  A. Displays the current location in the configuration or runtime bean hierarchy.

  B. Displays the location in the file system where the current WLST session was launched.

  C. Initiates an operation to change the current WLST user's password.

  D. Prints the name of the current domain.

  E. Prints the name of the current server.

  Correct Answer: A

  The pwd command displays the current location in the configuration or runtime bean hierarchy.

  This command is useful when you have turned off the prompt display of the path information using the prompt command.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs92/config_scripting/reference.html#wp1175219

• Question 92:

  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 true.

  Correct Answer: BC

  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.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs90/server_start/overview.html

• Question 93:

  You are configuring the principals needed to fulfill the security requirements of an application within a sandbox environment that uses the WebLogic Server-embedded LDAP server.

  The given security requirements provided have outlined the following facts about some test principals:

  

  One security requirement states that internal patient data can be viewed only by physicians who are employees.

  What is an appropriate way to fulfill this security requirement from a principal perspective using the provided information?

  A. Create an authorization policy that grants access if a user is a member of the physicians group and their employee attribute is true, bypassing the use of a role entirely.

  B. Create an ACL that grants access if a user is a member of the physicians group and their employee attribute is true, bypassing the use of a role entirely.

  C. Create authorization policies for individual users whose employee attribute is true creating a constraint-only model, bypassing the use of a role entirely.

  D. Create an authorization policy that denies access if a user is a member of the physicians group and their employee attribute is false, bypassing the use of a role entirely.

  Correct Answer: B

  Security policies replace access control lists (ACLs) and answer the question "Who has access to a WebLogic resource?".

  You assign security policies to any of the defined WebLogic resources (for example, an EJB resource or a JNDI resource) or to attributes or operations of a particular instance of a WebLogic resource (an EJB method or a servlet within a Web application). If you assign a security policy to a type of WebLogic resource, all new instances of that resource inherit that security policy. Security policies assigned to individual resources or attributes override security policies assigned to a type of WebLogic resource.

  Reference: https://docs.oracle.com/cd/E24329_01/web.1211/e24446/security.htm#INTRO243

• Question 94:

  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 server.

  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.

  Reference: http://docs.oracle.com/cd/E17904_01/web.1111/e13709/migration.htm#CLUST271

• Question 95:

  We find the JMSRedelivered header set for a particular message on the receiver.

  In which two scenarios is this expected to happen? (Choose two.)

  A. The application has already received the message, but did not acknowledge it.

  B. The session's recover() method was called to restart the session beginning after the last acknowledged message.

  C. The sender calls the redeliver() method for the message.

  D. The sending application crashes after sending the message.

  Correct Answer: AB

  A: The JMSRedelivered property specifies a flag set when a message is redelivered because no

  acknowledge was received. This flag is of interest to a receiving application.

  If set, the flag indicates that JMS may have delivered the message previously because one of the following

  is true:

  *

  The application has already received the message, but did not acknowledge it.

  *

  The session's recover() method was called to restart the session beginning after the last acknowledged

  message.

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

• Question 96:

  You are asked to create a WLST script to make live updates to a domain that has its administration server running. You want your script to mimic the actions of a WebLogic administrator by using the administration console and clicking the "Lock and Edit" button.

  What commands would accomplish this?

  A. edit() followed by startEdit()

  B. lockDomain() followed by edit()

  C. domainConfig() followed by cd(`Edit')

  D. getLock(0) followed by edit()

  E. clearPending() followed by lockDomain()

  F. lockDomain() followed by editDomain()

  Correct Answer: A

  Not edit() navigates to the last MBean to which you navigated in the edit configuration MBean hierarchy or

  to the root of the hierarchy, DomainMBean.

  StartEdit() starts a configuration edit session on behalf of the currently connected user. You must navigate

  to the edit configuration MBean hierarchy using the edit command before issuing this command.

  Note: Click the Lock and Edit button to lock the configuration edit hierarchy for the domain. This enables you

  to make changes using the Administration Console.

  Incorrect Answers:

  B, F: No WLST command lockDomain().

  D: No WLST command getLock().

  E: No WLST command ClearPending.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs90/config_scripting/reference.html#1159808

• Question 97:

  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 supported.

  Correct Answer: AD

  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.

  Incorrect Answers:

  B: WLST Offline does not support the assign command to target JMS servers to a dynamic cluster. Use the get and set command.

  C: Module subdeployment targets can reference clustered JMS servers. Using a cluster targeted JMS server in a subdeployment eliminates the need to individually enumerate individual JMS servers in the subdeployment, which is particularly useful for uniform distributed destination deployment.

  Reference: https://docs.oracle.com/middleware/1213/wls/JMSAD/dynamic_messaging.htm#JMSAD685

• Question 98:

  You are analyzing the JMSDeliveryMode header field for all the messages for all the queues deployed to your JMSServer.

  Which two values do you expect to find for this header? (Choose two.)

  A. PERSISTENT

  B. NON_PERSISTENT

  C. TRANSIENT

  D. PERMANENT

  E. MULTIMODE

  F. EXACTLY_ONCE

  Correct Answer: AB

  JMSDeliveryMode specifies PERSISTENT or NON_PERSISTENT messaging.

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

• Question 99:

  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. 0

  B. 999

  C. 1000

  D. 1

  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.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs90/jms/fund.html

• Question 100:

  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

  Correct Answer: D

  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.

  Incorrect Answers:

  A: The Harvester component of the WebLogic Diagnostics Framework (WLDF) gathers metrics from attributes on qualified MBeans that are instantiated in a running server. The Harvester can collect metrics from WebLogic Server MBeans and from custom MBeans.

  B: The Watch and Notification component of the WebLogic Diagnostics Framework (WLDF) provides the means for monitoring server and application states and then sending notifications based on criteria set in the watches.

  Reference: https://docs.oracle.com/cd/E24329_01/web.1211/e24426/architecture.htm#WLDFC124