1z0-134 sample questions

Question 1

A financial institution is performing a rolling upgrade of a WebLogic Server 12c cluster hosting a critical payment processing application. The cluster spans four Managed Servers across two physical machines (Machine A and Machine B). The administrator has already upgraded the Oracle Home on Machine A.

Which sequence of steps ensures the application remains available to clients throughout the process while upgrading Machine A's servers?

Accepted Answer

Gracefully shutdown servers on Machine A -> Point servers to new Oracle Home -> Restart servers on Machine A -> Verify operation -> Repeat for Machine B.

Answer

Shutdown all servers on Machine A -> Upgrade Domain Schema -> Restart servers on Machine A -> Repeat for Machine B.

Answer

Suspend the cluster -> Apply patch to Machine A -> Resume cluster -> Suspend cluster -> Apply patch to Machine B.

Answer

Use the WLST `rolloutUpdate` command to simultaneously patch both machines without stopping the Admin Server.

Question 2

You are designing a Zero Downtime Patching strategy for a WebLogic domain. The domain currently shares a single Middleware Home on a shared NAS storage device mounted by all UNIX hosts.

Why is this architecture unsuitable for a rolling patch upgrade, and what is the required architectural change?

Accepted Answer

Shared storage causes file locking; you must clone the Middleware Home to a second directory on the NAS and point half the cluster to the clone before patching.

Answer

NAS storage is too slow for patching operations; you must migrate to local SSD storage on each host.

Answer

Rolling patching requires the Administration Server to be on a separate physical host from Managed Servers.

Answer

The OPlay patch tool cannot run on network mounted drives; you must use the Smart Update tool instead.

Question 3

Case Study: FinCorp Global

FinCorp is migrating a legacy banking application to WebLogic 12c. The new architecture uses a Dynamic Cluster with 8 Managed Servers distributed across 4 machines. The requirement is to automate the installation of the domain on all 4 machines using a standard template.

You have created a domain template `fincorp_domain.jar` using the Template Builder on the first machine.

Which WLST command or utility should be used on the remaining three machines to create the domain configuration based on this template, and what is the primary consideration for the `user_projects` directory?

Accepted Answer

Use `unpack` command; it creates the domain directory structure and configuration files necessary for Managed Servers on remote machines.

Answer

Use `unpack`; ensure the directory path matches the `pack` command's source exactly.

Answer

Use `unpack`; the domain name and directory structure are created based on the template, but must be registered in `/etc/oratab` manually.

Answer

Use `config.sh -mode=silent`; requires a response file mapping the template to the new host.

Question 4

You are creating a custom Domain Template using the Domain Template Builder. You need to ensure that certain sensitive files (like custom keystores) in the source domain are included in the template, while temporary cache files are excluded.

Which configuration section of the Template Builder handles this requirement?

Accepted Answer

File Selection

Answer

Application Selection

Answer

SQL Script Selection

Answer

Security Configuration

Question 5

Which of the following statements accurately describes the difference between a **Domain Template** and an **Extension Template** in WebLogic Server 12c? (Select TWO)

Accepted Answer

A Domain Template defines the full infrastructure of a domain, including the Administration Server.

Accepted Answer

An Extension Template is used to add applications, services, or resources to an existing domain.

Answer

An Extension Template can be used to create a new domain from scratch.

Answer

A Domain Template cannot contain JDBC resources.

Answer

Extension Templates always overwrite the Administration Server configuration.

Question 6

You are configuring the Node Manager on a Linux host to manage three WebLogic domains. You want to ensure that if the physical server reboots, the Node Manager starts automatically, and subsequently restarts the Managed Servers that were running prior to the crash.

Which combination of actions achieves this?

Accepted Answer

Set `CrashRecoveryEnabled=true` in `nodemanager.properties` and add the `startNodeManager.sh` script to the OS initialization system (e.g., systemd or init.d).

Answer

Set `AutoRestart=true` in `config.xml` for each server and run `installNodeManagerService.sh`.

Answer

Use the WLST command `nmEnroll` with the `autoStart` flag set to true.

Answer

Configure the `PostBindUID` and `PostBindGID` in `nodemanager.properties`.

Question 7

True or False: When using the Java-based Node Manager, you must configure a separate Node Manager instance for every WebLogic domain on the same physical machine.

Accepted Answer

False

Answer

True

Question 8

A Managed Server (MS1) is in the `FAILED` state. The Node Manager is configured to monitor this server.

What logic does the Node Manager follow to attempt a restart?

Accepted Answer

It attempts to restart the server up to a configured `RestartMax` number of times within a `RestartInterval`. If it fails more than this limit, the state is left as FAILED.

Answer

It immediately kills the Java process and restarts it indefinitely.

Answer

It waits for an Administrator to issue a `nmStart` command via WLST.

Answer

It migrates the server to another machine immediately.

Question 9

You need to update the `MaxCapacity` of a JDBC Data Source in a production environment without restarting the servers. You decide to use WLST.

Which WLST mode and command sequence is appropriate for this task?

Accepted Answer

Online Mode: `connect`, `edit`, `startEdit`, `cd` to the JDBCSystemResource, `cmo.setMaxCapacity`, `save`, `activate`.

Answer

Offline Mode: `readDomain`, `cd`, `set`, `updateDomain`, `closeDomain`.

Answer

Online Mode: `connect`, `config`, `cd` to JDBC, `set`, `save`.

Answer

Offline Mode: `readTemplate`, `create`, `writeDomain`.

Question 10

Case Study: FinCorp Global

Part 2: Automation

The operations team needs a WLST script to automate the creation of a new Managed Server and add it to the existing 'BankingCluster'. The script must handle the case where the server might already exist.

Below is a snippet of the script:

```python
connect('weblogic', 'password', 't3://adminhost:7001')
edit()
startEdit()
cd('/')
if getMBean('Servers/NewServer') is None:
cmo.createServer('NewServer')
# MISSING CODE BLOCK
print 'Server created'
else:
print 'Server exists'
activate()
```

Which code block correctly assigns the new server to the cluster?

Accepted Answer

cd('/Servers/NewServer')
cmo.setCluster(getMBean('/Clusters/BankingCluster'))

Answer

cd('/Servers/NewServer')
set('Cluster', 'BankingCluster')

Answer

cd('/Clusters/BankingCluster')
cmo.addServer('NewServer')

Answer

assign('Server', 'NewServer', 'Cluster', 'BankingCluster')

Question 11

You are writing a WLST script to monitor the heap usage of a specific Managed Server. You are currently connected to the Administration Server.

Which MBean hierarchy must you navigate to access the runtime metrics of a Managed Server named 'MS1'?

Accepted Answer

`domainRuntime()` -> `ServerRuntimes` -> `MS1` -> `JVMRuntime`

Answer

`serverRuntime()` -> `JVMRuntime`

Answer

`edit()` -> `Servers` -> `MS1`

Answer

`config()` -> `Servers` -> `MS1`

Question 12

In a WLST script, you need to encrypt a database password before setting it in a Data Source configuration.

Which command or method provides this functionality?

Accepted Answer

encrypt()

Answer

storeUserConfig()

Answer

weblogic.Admin

Answer

loadProperties()

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Free 1z0-134 sample questions

You are designing a Zero Downtime Patching strategy for a WebLogic domain. The domain currently shares a single Middleware Home on a shared NAS storage device mounted by all UNIX hosts. Why is this architecture unsuitable for a rolling patch upgrade, and what is the required architectural change?

Which of the following statements accurately describes the difference between a Domain Template and an Extension Template in WebLogic Server 12c? (Select TWO)

True or False: When using the Java-based Node Manager, you must configure a separate Node Manager instance for every WebLogic domain on the same physical machine.

A Managed Server (MS1) is in the `FAILED` state. The Node Manager is configured to monitor this server. What logic does the Node Manager follow to attempt a restart?

You need to update the `MaxCapacity` of a JDBC Data Source in a production environment without restarting the servers. You decide to use WLST. Which WLST mode and command sequence is appropriate for this task?

You are writing a WLST script to monitor the heap usage of a specific Managed Server. You are currently connected to the Administration Server. Which MBean hierarchy must you navigate to access the runtime metrics of a Managed Server named 'MS1'?

In a WLST script, you need to encrypt a database password before setting it in a Data Source configuration. Which command or method provides this functionality?

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