Oracle announced WebLogic 11g System Expert Certificate
1. WebLogic Product Installation Amazon.com Widgets Install the JDK/JRE if required on supported platforms (if not included with jar distribution)Install BEA WebLogic Server on supported platforms Install and configure WebLogic Server service packs and patches Install Web Server plug-ins if required on supported platforms Essential: An understanding of the WebLogic Server components and how they can be installed Un-formal Questionnaire we have prepared for people who wish to write WebLogic System Administration Certification
1. Net installer is preferred over the package installer if you want to install select components using only the Custom option and have access to the Internet. a. True b. False Answer: a Net installer has a smaller footprint and is preferred if you want to use the Custom option and install a selected number of products. Package installer is good for the default (all components selected) option. Net installer requires access to the Internet to incrementally download and install software bytes.
2. You want to install WebLogic Server to use 64-bit JDK and JVM because you intend to use more than 4 GB heap sizes.Which WLS installation package would you use? a. ./wls1033_linux64.bin b. java –jar wls1033_generic.jar c. ./runInstaller d. setup.exe
Answer: b There is no bundled JDK, so install that first, then the generic JAR file.
3. Which JDK does Oracle WebLogic Server 10.3.3 come bundled with for a 32-bit Linux platform? a. Sun SDK 1.6 b. JRockit SDK 1.6 c. Both
Answer: c Both are shipped with 32-bit Oracle WebLogic Server 10.3.3. There are 64-bit JDK versions available for download from OTN.
4. Which directory within a domain directory is used to maintain its configuration repository? a. /console b. /cache c. /config d. /logs e. /AdminServer Answer: c Changes made to a domain’s configuration are recorded on the file system in the /config directory.
a. config.sh under <WL_HOME>/common/bin b. config_builder.sh under <WL_HOME>/common/bin c. pack.sh Answer: a config_builder.sh is used to invoke the Domain Template Builder.
a. configuration.xml b. wlsconfig.xml c. wls.xml d. config.xml
Answer: d The central domain configuration file is called config.xml and it resides in the config subdirectory of the domain’s root directory.
a. Managed servers in a domain may run a different OS version of Oracle WebLogic Server (for example, Windows + Linux. b. A domain comprises only the administration server, only the managed server, or the administration and managed servers. c. The administration server stores the configuration information and logs for a domain. d. The administration server in a domain must run the same or later version number of Oracle WebLogic Server as the managed servers in the domain.
Answer: b A domain must consist of one administration server. Managed servers are optional.
a. Oracle Database 11g b. Derby database c. Oracle Internet Directory d. LDAP store of the administration server
Answer: d By default, database security is disabled—that is, all users, groups, and roles are stored in the embedded LDAP store of the administration server.
a. config.sh under <WL_HOME>/common/bin b. config_builder.sh under <WL_HOME>/common/bin Answer: b config_builder.sh is used to invoke the Domain Template Wizard.
a. wlst.jar b. ws.jar c. web_server.jar d. server.jar e. wls.jar Answer: e If you create a new domain and if you choose to have the domain configured automatically to support the WebLogic Server option, the domain is based on the default wls.jar template that is found in the <WL_HOME>/common/templates/domains directory.
a. The pack command b. config_temp.sh c. The Administration Console d. config_builder.sh e. The WLST offline command-line tool Answer: a, d, e You can create domain templates using the following: • The WLST offline command-line tool • The pack command • The Domain Template Builder, also known as config_builder.sh
a. Customize this table b. Change Monitoring View c. Update Columns d. Manage Preferences. Answer: a Remember that the Monitoring tab for resources such as servers and connection pools displays statistics in a tabular format. The “Customize this table” link enables you to control the columns displayed in one of these tables. WLST communicates with Oracle WebLogic Server’s ____ to retrieve and update resources on a running server. a. Templates b. Logs c. MBeans d. Scripts Answer: c WLST is based on JMX, which supports remote server management through MBean objects.
a. Preferences b. Domain Structure c. How do I? d. Change Center Answer: b
Server is shut down. a. True b. False Answer: a
a. True b. False Answer: b You cannot start the administration server using the Administration Console. The Administration Console is an application that runs on the administration server.
a. Management b. Operational c. Sequential d. Template e. Interactive
Answer: e In Interactive mode, you can quickly prototype or troubleshoot some WLST commands.
subdirectory for each WebLogic Server instance in your domain, it means that:
a. The WebLogic Server instance is not correctly configured. b. The patch level is not correct. c. The administration server is unable to communicate with the managed servers. d. The WebLogic Server instance has not been started since it was created.
Answer: d The servers directory that contains the subdirectories for the administration and managed servers is created the first time the servers are started. This directory contains one subdirectory for each WebLogic Server instance in the domain. The subdirectories contain data that is specific to each server instance.
a. It invokes java weblogic.Server. b. It starts the managed servers associated with the administration server. c. It sets the environment using setDomainEnv.sh. d. It starts the administration server.
Answer: a, c, d startWebLogic.sh does not start the managed servers. It sets the environment variable using setDomainEnv.sh and invokes java weblogic.Server, which starts the administration server.
a. Domain Configuration Wizard b. Administration Console c. Command line (WLST) Answer: a, b, c You can create the managed server using either the Domain Configuration Wizard, the Administration Console, or the WLST create command.
a. Managed servers b. Administration server c. Both
Answer: c You can use the boot.properties file to start both the administration and managed servers. The boot.properties file can be different for each server instance in the domain.
a. Domain log entries are unavailable. b. Managed servers can start in MSI mode. c. The Administration Console and management tools are unavailable. d. At boot time, managed servers read a local copy of config.xml, SerializedSystemIni.dat, and boot.properties (optional. e. You cannot change the configuration of the managed servers that are running in MSI mode until communication with the administration server is restored. f. The Node Manager can start the managed servers in MSI mode.
Answer: a, b, c, d, e You cannot use the Node Manager to start a server instance in MSI mode, but you can use it only to restart it. For a routine startup, the Node Manager requires access to the administration server. If the administration server is unavailable, you must log on to a managed server’s host machine to start the managed server.
a. True b. False Answer: b If you do not use a Node Manager, WLST cannot start managed servers. This method is available only to start the administration server.
a. There is one Node Manager for each machine. b. There is one Node Manager for each domain. e. There is one Node Manager for each cluster Answer: a Although optional, there is no more than one Node Manager associated with a machine (host. The administration and managed servers on a single machine are managed by one Node Manager
a. True b. False Answer: a A managed server is assigned to a machine. A Node Manager must be configured on the machine and started in order to start the managed server using the Administration Console.
a. Debug b. Transaction c. Info d. Notice e. Error Answer: b Info, Debug, Notice, and Error are all valid log message severities. Though log messages canhave an optional Transaction ID attribute, it is not a severity level
a. Production Mode, archived files b. Production Mode, expanded files c. Development mode, archived files d. Development mode, expanded files e. All of the above Answer: d You must also have <fast-swap>true</fast-swap> in the weblogic.xml file
applications? a. <welcome-file> b. <test-point> c. <deploy> d. <monitor> e. <debug> Answer: a The <welcome-file> pair of tags is within a <welcome-file-list> pair of tags
a. True b. False Answer: b You must manually explode anything tarred, zipped, jarred, or otherwise archived in an exploded directory before it can be used
a. Java library b. Shared library c. Web library d. Composite library e. Reference library Answer: b Remember that applications can be deployed to WebLogic as shared libraries to facilitate code reuse.
a. Enterprise application b. EJB application c. Process application d. Web service application e. Web application Answer: c Currently, there is no Java EE or WebLogic application type named Process application
a. weblogic-webapp.xml b. weblogic-ejb-jar.xml c. weblogic.xml d. weblogic-application.xml e. weblogic-library.xml Answer: b, c, d
a. Overrides values in application descriptors b. Can be created by Oracle WebLogic Server during deployment c. Is packaged within an application archive d. Is an XML file e. Can be created with weblogic.PlanGenerator Answer: c Remember that deployment plans are not packaged within an application, so that the same application can be reused in multiple deployment environments
a. Activated b. Staged c. Targeted d. Prepared e. Loaded Answer: d Remember that before the Activated phase, applications first enter the Prepared phase
a. Administration Console b. WLST c. weblogic.PlanGenerator d. weblogic.Deployer e. JMS f. Autodeployment Answer: a, b, d, f
a. Host name b. queue size c. Test frequency d. Initial capacity e. Capacity increment Answer: b All these are valid settings for a data source except queue size. Data sources use connection pooling, but not a queue.
a. Connection b. Web c. Application d. Process e. System Answer: c, e Remember that system data sources are scoped to the domain, whereas application data sources are deployed as part of an application
___________ tree: a. Application b. Web c. LDAP directory d. JNDI e. System Answer: d
a. queue: Publish/Subscribe b. queue: Point-to-point c. Topic: Publish/Subscribe d. Topic: Point-to-point Answer: b, c Remember
that a JMS Publish/Subscribe messaging in which messages are broadcast to all listening consumers.
a. Connection factory b. queue c. Topic d. Server e. Store Answer: a, b, c Remember that JMS destinations (queues and topics) and connection factories are commonly deployed as part of a JMS module
a. Requires fewer servers compared to the basic architecture b. Possibility to load-balance method calls to clustered EJBs c. Easier security implementation d. None Answer: b With multitier architecture, you can balance load on EJBs clustered across multiple servers
a. Within one cluster b. In different clusters c. Along with the Web-tier clients in the same server d. In different domains Answer: a Load balancing in Oracle WebLogic Server works within a cluster. You cannot load balance across multiple clusters or domains. Because you intend to use multitier cluster, the Web server and EJB objects need to be separated. So options 2, 3, and 4 are not applicable in this case
a. Messaging mode b. Multicast TTL c. Multicast port d. Broadcast server Answer: d Remember that although clusters support a messaging mode for broadcast communication (unicast or multicast), there is no attribute called broadcast server.
a. file b. replicated c. unicast d. async-replicated-if-clustered e. jdbc f. async-wan Answer: a, b, d, e
a. Web service b. Replication group c. Data source d. Node Manager e. Machine Answer: b, e Remember that clustered servers use machine and replication group boundaries to select destinations for replicated sessions
a. Cookie b. Secondary c. Session d. Schema e. Primary f. Synchronous Answer: d By default, in-memory replication involves both the synchronous creation of secondary copies of primary sessions and the tracking of these primary and secondary copies with cookies
a. JDBC b. File c. InMemory d. None Answer: c, d Other types of replication are available for the replication of only HTTP sessions
a. Large buffer b. Connection starvation c. Man in the middle d. User lockout Answer: c
a. Max Post Size b. Post Timeout c. Hostname Verifier d. User lockout Answer: b
a. Online b. Offline c. Either online or offline d. Neither. A full backup is technically impossible Answer: b To be consistent, the Middleware software must be completely stopped.
a. Hot b. Cold c. Either online or offline d. Broken. If it is inconsistent, there is something wrong with it. Answer: a In a hot backup, the files are inconsistent—that is, some files may have different time stamps and need to be reconciled via a transaction log.
a. Make it from the lowest directory possible, as far from root as practical. b. Make sure that you perform the backup signed on as the owner of the Middleware Home directory. c. Make sure that you preserve the original owner, group, and permissions. d. Make sure that all Middleware processes are stopped Answer: c In TAR, use the –p option to preserve the permissions
a. True b. False Answer: b You need to enable the configuration archive by selecting Domain > Configuration > General >Advanced
a. You are allowed to have only one administration server. If it fails, the managed servers run in MSI mode until your one administration server comes back. b. It runs simultaneously with the primary administration server in a load-sharing mode. c. It can run in a warm standby keeping itself in sync with the main administration server. d. It must be in cold standby and you have to sync it with the main administration server manually Answer: d You can have only one administration server at a time; the backup administration server must be Cold.
a. def b. deploy c. try d. for e. import Answer: a, c , d, e
a. connect() b. cd() c. move() d. ls() e. getMBean() Answer: c
a. Trigger email notifications. b. Generate support request artifacts. c. Check domains for common problems. d. Create a domain inventory. e. Monitor server performance. Answer: d
a. Trigger email notifications. b. Generate support re c. Check domains for common problems. d. Create a domain inventory. e. Monitor server performance. Answer: b, c, d
a. Domains b. Annotations c. Shortcuts d. Bundles e. Agents Answer: d
a. Warning b. Notice c. Error d. Info e. Critical Answer: a, d, e
60. Which of these is not a component of WLDF? a. Watch b. Image Capture c. Archive d. Guardian e. Harvester Answer: d
a. Type b. Method c. Attribute d. Instance e. Period Answer: b
62. Name three types of WLDF notifications. a. JDBC b. SNMP c. SMTP d. JMS e. FTP Answer: b, c, d
63. In the WLDF console, a chart can include zero or more ____. a. Graphs b. Ports c. Watches d. Views e. Flags Answer: a
a. Start Server b. Stack Dump c. Elapsed Time d. Display Arguments e. Thread Dump Answer: a
a. weblogic-monitor.xml b. weblogic-diagnostics.xml c. weblogic-wldf.xml d. weblogic-ext.xml e. weblogic.xml Answer: b
a. Dye Mask b. Harvester c. Join Unit d. Pointcut e. Context Answer: d
a. Locks b. Heaps c. Generations d. Classes Answer: c
a. HEAP_ARGS b. JAVA_VENDOR c. JAVA_OPTIONS d. USER_MEM_ARGS Answer: a
a. jstat b. jrcmd c. jopt d. joracle e. jstack Answer: a, b, e
CPU, JVM memory, and JVM threads? a. Memory Leak Detector b. Java Browser c. Management Console d. Runtime Analyzer e. Latency Events Answer: c. a. ClassCastException b. StackOverflowError c. NoClassDefFoundError d. JVMBuildError e. NullPointerException Answer: d
a. Diagnostic modules b. JVM classpath c. Transaction log d. EJB modules in an EAR e. Web application Answer: b, d, e
a. Service Producer b. Socket Reader c. Execute Answer: a
a. Standby b. Request Class c. Staging Mode d. Constraint Answer: b, d
a. Missing deployment descriptor b. Performance pack disabled c. Wrong library version d. Lock held by another user e. Web URI already in use Answer: b
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