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Q1. Applications A and B are configured to use IBM MQ Light for Bluemix messaging capabilities. Application A publishes messages to a topic. Application B subscribes to the same topic in order to receive the messages published by Application A. What occurs when Application A publishes the message after Application B goes down? 

A. Destination stores the message and it will be received if Application B comes back up before the destination time-to-live expires. 

B. Application A receives a notification from the destination that Application B is down. 

C. Topic stores the message forever, and the message will be received by Application B after it comes back up. 

D. Destination stores the copy of the message for one hour. If Application B does not come back up within one hour the message will be lost. 

Answer:

Explanation: 

MQ Light messaging provides two models for delivery assurance, at most once, and at least once. The first is appropriate when occasional loss of data caused by a communication disruption is acceptable, and the second is required when there can be no loss of data. When using at least once, duplicate messages may appear around communication disruptions and they should to be programmatically discarded. MQ Light buffers messages based upon message and destination time-to-live. When an application subscribes to a topic it may specify a destination time-to-live, which will cause MQ Light to store messages at the destination in the event of a receiving application crash. After the destination time-to-live exipres, MQ Light will discard all held messages and stops storing new messages. 


Q2. A developer has an application and they wish to make it availableas a service through IBM Cloud. Which two options are available for publishing the solution?(Select two.) 

A. IBM Cloud 

B. IBM SoftLayer 

C. IBM Cloud Marketplace 

D. IBM Connections Cloud 

E. IBM Bluemix PaaS as a third-party service 

Answer: C,E 


Q3. What are three types of work items available in the IBM Bluemix DevOps Services Track & Plan feature?(Select three.) 

A. PMR 

B. Task 

C. Story 

D. Sprint 

E. Defect 

F. Test Plan 

Answer: B,C,E 

Explanation: 

. Bluemix DevOps Services - Track & Plan supports typical activities conducted during agile projects, such as backlog management, sprint planning, and daily scrums 

. Understand work items in Track & Plan like epic, story, task, and defect 

On an agile project, features to implement are captured in a product backlog, then the team identifies the work for the next Sprint in the Sprint Backlog. 


Q4. Which statement characterizes the dashDB service? 

A. It is optimized for time series data. 

B. It is designed for analytic queries. 

C. It is optimized for normalized data. 

D. It is based upon the MySQL engine. 

Answer:

Explanation: 

The dashDB service in IBM Bluemix is an example of an in memory, columnar databases service. dashDB is based on DB2 BLU and its columnar organizations favors analytic queries that access a large number of values from a subset of the columns and make heavy use of aggregations and joins. dashDB also leverages compression to allow larger amounts of data to reside in memory. 


Q5. A developer wants to deploy and start a large application to IBM Bluemix PaaS. When they enter the commandcf push appname, the following error is shown: 

0 of 1 instances running, 1 starting 0 of 1 instances running, 1 down FAILED Start app timeout 

What option is available for the developer to resolve the issue? 

A. Increase the start timeout in manifest.yml of the application. 

B. Increase the deploy timeout in manifest.yml of the application. 

C. Increase the upload timeout in manifest.yml of the application. 

D. Increase the staging timeout in manifest.yml of the application. 

Answer:

Reference:http://www.paasmag.com/2015/06/22/resolving-bluemix-application-push-failures-application-startup-errors/ 


Q6. A developer’s application is falling to work correctly in IBM Bluemix PaaS. The developer is unsure if the problem is caused by a bad environment value or a bug in the code. How should they proceed? 

A. Rebind the service associated with VCAP_SERVICES. 

B. Usecf env <app_name>to get all the environment variables forthe application. 

C. Delete the service associated with VCAP_SERVICES and recreate it without rebinding. 

D. Usecf set-env <app_name>to set all environment variables to null for the application. 

Answer:


Q7. In IBM Bluemix PaaS, what function is performed by the Router? 

A. controlling the number of application instances 

B. providing health status of running application instances 

C. routing log traffic to a third-party log management service 

D. provides request routing to access a running application instance 

Answer:


Q8. When creating a new project in IBM Bluemix DevOps Services, which action is performed when Link to an existing repository is selected? 

A. An existing GitHub repository is linkedto the project by giving IBM DevOps Services access to a specified GitHub account. 

B. An existing Git project on the developer’s local machine is linked to the project. 

C. An existing GitHub repository is linked to the project using anonymous access. 

D. An existing user’s project in IBM DevOps Services is linked to the project. 

Answer:


Q9. A developer has an application based on the Liberty profile running in IBM Bluemix PaaS. The developer wants to maintain high availability on HTTP sessions. What is the benefit of using IBM Bluemix Session Cache service? 

A. Session data is shared across different browsers. 

B. Session data is automatically stored in remote file systems. 

C. Session data is encrypted and stored in a MySQL database. 

D. Session data is recovered after an application instance crashes. 

Answer:


Q10. A team of developers is working on a single repository in IBM Bluemix DevOps Services. Which DevOps feature should be used to confirm the integrity of their source code by running tests every time code is delivered to the shared repository? 

A. Source Control: Test code upon commit 

B. Web IDE: Enable Automatic Unit Testing 

C. Delivery Pipeline: Configure a build stage 

D. Track & Plan: Create a Work Item of type Test 

Answer:

Reference:https://www-304.ibm.com/partnerworld/wps/servlet/download/DownloadServlet?id=7do7u9UN5SciPCA $cnt&attachmentName=Study_Guide_C5020_285.pdf&token=MTQ1MzQwMDAwNDE0Mg 

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