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Q21. 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: B 

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. 


Q22. What allows for the sharing of variables across any job in a stage in the Delivery Pipeline of IBM Bluemix DevOps Services? 

A. environment properties 

B. the Admin options in the Project settings 

C. a flag passed to the job when it is executed 

D. a setting in the project’s properties called Shared Variables 

Answer: B 


Q23. Which three features are provided by IBM Bluemix DevOps Services?(Select three.) 

A. web code editor B. Delivery Pipeline 

C. database management 

D. application usage statistics 

E. source control management 

F. automatic unit test generation 

Answer: A,B,E 

Reference:https://www-304.ibm.com/partnerworld/wps/servlet/download/DownloadServlet?id=7do7u9UN5SciPCA $cnt&attachmentName=Study_Guide_C5020_285.pdf&token=MTQ1MzQwMDAwNDE0Mg ==&locale=en_ALL_ZZ(page 24) 


Q24. Applications A, B and C are configured to use IBM MQ Light for Bluemix messaging capabilities. Application A publishes messages as shown in the diagram. What messages are received by Applications B and C? (Select two.) 

A. Application C receives “My” “World” 

B. Application B receives “Hello” “World” 

C. Application B receives “Hello” “Bluemix” D. Application B receives “Hello” “My” “Bluemix” “World” 

E. Application C receives “Hello” “My” “Bluemix” “World” 

Answer: D,E 


Q25. 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: A 


Q26. 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: A 

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


Q27. What is the output of thecf appscommand? 

A. a list of all the applications and services for the developer’s organization 

B. a list of services bound to each application for the developer’s organization 

C. a list of all the running applications on IBM Bluemix PaaS with application owner ID 

D. a list of all the applications in the developer’s space with the name and resource utilization 

Answer: D 


Q28. A developer is creating an application to search social media for pictures with specific content, What IBM Bluemix PaaS service should they use? 

A. DreamFace 

B. AlchemyAPI 

C. Personality Insights 

D. Monitoring and Analytics 

Answer: B 

Reference:http://www.alchemyapi.com/api/image-link-extraction