IBM WebSphere Application Server Network Deployment Administrator (C1000-174) Certification Sample Questions

The purpose of this Sample Question Set is to provide you with information about the IBM WebSphere Application Server Network Deployment v9.0.5 Administrator exam. These sample questions will make you very familiar with both the type and the difficulty level of the questions on the C1000-174 certification test. To get familiar with real exam environment, we suggest you try our Sample IBM WebSphere Application Server Network Deployment Administrator Certification Practice Exam. This sample practice exam gives you the feeling of reality and is a clue to the questions asked in the actual IBM Certified Administrator - WebSphere Application Server Network Deployment v9.0.5 certification exam.

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IBM C1000-174 Sample Questions:

01. The web container thread pool on each cluster member was enlarged to clear a request backlog. Applications then began reporting more connection-timeout errors from the datasource than before. The only change made was to the thread pool.

What explains this, and what should the administrator do about it?

a) The connection pool contracts automatically as thread demand rises, so raising the datasource's minimum connection setting restores it to the size it had before the change.

b) The larger thread pool increases context switching, so each request holds its connection for longer; shortening the datasource's connection timeout releases the waiting threads and clears the errors.

c) More requests are now admitted than the connection pool can serve, so threads wait for a connection; the pools must be sized against each other and against what the database sustains.

d) Enlarging a thread pool invalidates the datasource's prepared statement cache, so the statement cache has to be re-enabled after any thread pool change.

02. Cluster members run as containers that the platform may stop and reschedule at any time, sometimes more than one at once. A user whose member disappears must be able to continue working without being returned to the login page.

Which session-management approach satisfies that requirement?

a) Rely on session affinity at the ingress — sticky routing by session cookie — so that each returning request reaches the member that already holds the session

b) Configure session persistence — a session database or memory-to-memory replication — so that a surviving member can serve the session, and keep session affinity as a routing optimization on top of it

c) Increase the session timeout so that a session remains valid while the platform starts a replacement container, and let the user resume on any member

d) Enable memory-to-memory replication and turn off session affinity so that requests spread evenly across members regardless of which one served them first

03. A job manager has been created so that a group of deployment managers and standalone application servers can be administered from one place. An administrator opens the job manager to submit a job and finds no target available to submit it to.

What is missing?

a) The targets have to be grouped into a cluster, because a job is submitted to a cluster rather than to an individual server or endpoint.

b) Each target has to be federated into the job manager's cell with addNode, which places the target under the job manager's administration.

c) The job manager has to share a core group with each target, so that the two discover one another before any job is queued for it.

d) Each deployment manager or standalone application server has to be registered with the job manager as a managed target.

04. During installation of a web application, an administrator maps the application's web modules to a cluster and leaves the web server unselected in the same mapping step. The application installs and starts on every cluster member.

What is the consequence of leaving the web server unselected?

a) The generated plug-in configuration will not contain the application's URI entries, so the web server will not route requests for it to the cluster.

b) The application will run, but requests will bypass workload management, because the plug-in will forward each request to whichever member answers first.

c) The application will be reachable only over the internal transport, because the web modules will be bound to the default virtual host instead of the intended one.

d) The application will start on only one cluster member, because the web server is what informs the remaining members that they host the module.

05. In a cloud deployment, the platform's load balancer distributes requests directly to the application server containers. In the previous topology an IBM HTTP Server with the web server plug-in performed that distribution.

Which statement describes what happens to the responsibilities the plug-in held?

a) The plug-in remains responsible for session affinity even where a load balancer distributes the requests, so plugin-cfg.xml must still be regenerated and propagated after every topology change for affinity to hold

b) Removing the web server tier also removes the cell's workload management, because cluster membership is defined by the plug-in configuration rather than by the master repository

c) The deployment manager takes over the plug-in's routing duties and distributes requests to cluster members itself, so no change to the topology is required

d) Workload distribution and session affinity move to the load balancer, so the plug-in's routing role, and the propagation of plugin-cfg.xml, no longer apply on that path

06. An organization is moving a traditional WebSphere Application Server ND cell into a cloud environment. It is choosing between running the existing cell on cloud virtual machines and rebuilding the servers as containers.

Which two statements accurately describe the trade-off?

(Choose two.)

a) Rebuilding as containers hands placement and capacity decisions to the platform’s scheduler, so where a server runs stops being something the cell decides.

b) Rebuilding as containers requires each server to be removed from its cluster first, so workload management has to be rebuilt before the move can proceed.

c) Running the existing cell on virtual machines removes node synchronization, because the cloud platform distributes configuration to each server directly.

d) Running the existing cell on virtual machines preserves the current administration model, because the deployment manager, node agents and profiles go on working as they do today.

07. Two applications are deployed on the same application server. One of them builds a cache during its own startup, and the second reads that cache while it starts. After every server restart the second application fails, because the cache is not ready when it looks for it.

Which configuration change makes the startup dependency deterministic?

a) Move the dependent application onto a different server in the cluster, so the two no longer start at the same time.

b) Configure both applications to start automatically with the server, so neither depends on an operator starting it.

c) Set the applications' starting weights, because the initializing application must start ahead of the dependent one.

d) Set the starting weights of the modules inside the dependent application so its own modules initialize in the required order.

08. An evaluation reports that a business-critical application depends on a capability that traditional WebSphere Application Server ND provides and Liberty does not. The dependency sits in the application itself, and the application cannot be rewritten inside the program's timeframe.

What should this evaluation result drive?

a) A decision to keep the application on traditional WebSphere, and to revisit it only when the dependency itself can be removed.

b) Packaging the capability into the application as a shared library, so the application supplies it for itself once it runs on Liberty.

c) Migration of the application to Liberty on schedule, with the missing capability tracked and closed as a post-migration defect after cutover.

d) A re-run of the evaluation over a narrower set of modules, so the dependency stops appearing in the report.

09. One cluster in a cell must authenticate its users against a different user registry from every other server in the cell. Administrative security is already enabled cell-wide, and the remaining servers must carry on using the configuration they have.

What should the administrator configure?

a) Repoint the global security configuration at the new registry, then create a security domain for the remaining servers that restores the original registry to them.

b) Create a security domain scoped to that cluster, overriding only the registry setting; the rest of the cell continues to use the global security configuration.

c) Add the second registry to the cell's federated repository so that every server in the cell can authenticate against both.

d) Disable administrative security on that cluster's servers so they can be pointed at their own registry independently of the cell.

10. An application runs on a cluster of four members. A new version has to become the active one without interrupting users, and the environment has Intelligent Management application edition management available.

Which two conditions are required for a rollout that keeps the application available throughout?

(Choose two.)

a) The running edition is uninstalled first so that the edition identifiers do not collide, and the new edition is then installed in its place.

b) The rollout activates the new edition on a subset of members at a time, while the remaining members continue serving requests.

c) Session persistence is disabled for the rollout, so that in-flight sessions are not carried onto members still running the older edition.

d) The new edition is installed alongside the running edition, so that both editions exist in the configuration before any member is switched over.

Answers:

Question: 01 Answer: c	Question: 02 Answer: b	Question: 03 Answer: d	Question: 04 Answer: a	Question: 05 Answer: d
Question: 06 Answer: a, d	Question: 07 Answer: c	Question: 08 Answer: a	Question: 09 Answer: b	Question: 10 Answer: b, d

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