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Q11. A developer is going into production with aconsumerweb application in IBM Bluemix PaaS. The developer is keen to understand how the application is performing to maximize customer retention.
Where can the developer look to obtain a current display of CPU, disk and memory usage?
A. Track and Plan
B. Workload Scheduler
C. Instance Details panel
D. AppScan Dynamic Analyzer
Answer: C
Explanation:
The Instance Details panel provides the current view of running instances for an application, and the CPU and memory utilization of each instance. This panel can be accessed from the CloudFoundry dashboard by selecting an application to bring up the overview, and then clicking on the runtime for the application.
Q12. 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
Q13. According to this application Overview panel image, how is the memory quota (measured in MB) applied to the two instances?
A. each instance gets 512 MB of memory
B. each instance shares the available memory
C. the instance that receives the most traffic gets the most memory
D. the instance will divide the memory quota evenly, each receiving 256 MB of memory
Answer: B
Q14. Which step must be taken in an application to use the IBM Single Sign On service for Bluemix PaaS?
A. implement an authentication callback
B. implement a login form requesting User ID and password
C. configure the OAuth 2.0 client with the SSO service credentials
D. securely store user credentials used for the external authentication
Answer: D
Q15. 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: A
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.
Q16. 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
Q17. 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: A
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)
Q18. How are managed services from the IBM Bluemix PaaS catalog used in an application?
A. Services can only be used by anIBM Bluemix PaaS application with a signed one year agreement.
B. Services can be found through the IBM Cloud Marketplace and must be purchased before using them.
C. Services are ready for immediate use and can be used by any IBM Bluemix PaaS application after binding.
D. Services must be downloaded from IBM, third-party, or community locations and installed on a virtual machine before using them.
Answer: C
Q19. What is a Stage Trigger in Delivery Pipeline?
A. an action that adds a new stage
B. an action that tells a job when to execute
C. an action that pushes code changes to git
D. an action that updates a work item in Track & Plan
Answer: C
Q20. Why would the Load Impact service in IBM Bluemix PaaS be used?
A. For its ability to manage a sudden load increase in an application.
B. For its ability to replicate instances across IBM Bluemix PaaS regions.
C. For its ability to simulate user loads on IBM Bluemix PaaS applications.
D. For its ability to increase application availability by increasing application instances.
Answer: C