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Q1. 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.
The scaling history for the application shows repetitive scale out and scale in actions. To reduce resources used by each instance startup, the developer wants the scaling service to wait longer before taking action. What parameter should be changed and how?
A. increase the cooldown period for scaling in
B. decrease the cooldown period for scaling in
C. increase the cooldown period for scaling out
D. decrease the cooldown period for scaling out
Answer: D
Q2. In a hierarchical organization of related work items in the Track and Plan feature of IBM Bluemix DevOps Services, which type of work item would be at the top?
A. Epic
B. Task
C. Story
D. Detect
Answer: C
Q3. What are the two key benefits of Cloudant Sync? (Select two.)
A. Sensitive data is encrypted by default before replication.
B. Replication is extremely fast because it is limited to documents less than2KB in size.
C. The distributed database architecture is more scalable thana single central database.
D. It enables mobile device apps accessing the database to operate without a network connection.
E. It significantly reduces the amount of storage needed once all participating databases are in sync.
Answer: A,C
Q4. A team is using IBM Bluemix DevOps Services to collaboratively develop their application. They are all members of the same project in IBM Bluemix DevOps Services.
The team lead has made some changes that need to be shared with the team. How can this be accomplished?
A. Create a commit and push it to the repository.
B. Edit the ACL for each changed file and give the team read access.
C. Team members should log into IBM DevOps services with the User ID anonymous.
D. Click the Share button in the IBM Bluemix DevOps web IDE after saving the changes.
Answer: D
Q5. 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: A
Q6. Which statement is true for binding services to IBM Bluemix PaaS applications?
A. All service instances must be bound to an application.
B. An application can bind to only one service instance of a given type.
C. More than one application can bind to the same service instance of a given type.
D. Two or more applications can not bind to the same service instance of a given type.
Answer: D
Q7. 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
Q8. 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
Q9. What are the two key elements defined in an Organization inIBMBluemix PaaS?(Select two.)
A. Cities
B. Users
C. Routers
D. Spaces E Regions
Answer: B,D
Explanation:
Organizations and spaces are organizational units in the infrastructure that can store and track application resources. An organization contains domains, spaces, and users. A space contains applications and services. The default spaces are Development, Production, and Staging.
Reference:http://www.ibm.com/developerworks/cloud/library/cl-bluemix-summary/
Q10. The following document exists in a Cloudant database namedinvoicescreated by usercandidate
What information is required in order to delete it?
A. the document’s_idonly
B. the document_idanduser
C. the document’s most recent_revvalue only
D. the document’s_idand most recent_revvalue
Answer: D
Explanation:
To delete a document you need its _id and _rev, the easiest way to get the _rev for a known document _id is to issue a HEAD request against the document:
Command
curl -i -X HEADhttps://[username].cloudant.com/crud/[doc_id]
Response
HTTP/1.1 200 OK X-Couch-Request-ID: 89d9d456 Server: CouchDB/1.0.2 (Erlang OTP/R14B) ETag: "2-e4b98cc0fc2a181e4eb26f8ad41fa5fe" Date: Mon, 04 Jun 2012 14:47:15 GMT Content-Type: text/plain; charset=utf-8 Content-Length: 113 Cache-Control: must-revalidate
Q11. 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
Q12. What is a boilerplate in IBM Bluemix PaaS?
A. a script to build applications from scratch
B. a service that can be bound to application
C. a combination of a runtime and predefined services
D. an external service that can be consumed by application
Answer: C
Explanation:
Boilerplate consists of a combination of runtime and predefined services. Because they contain a runtime and set of services for a particular solution type, they can be used to quickly get an application up and running.
Q13. 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
Q14. When defining a Cloudant view, what must be defined?
A. a map function
B. a sort function
C. a reduce function
D. a rereduce function
Answer: A
Q15. Based on the Twelve-Factor App methodology, how should developers share common code between two Node.js applications in IBM Bluemix PaaS?
A. duplicate the common code in each application repository
B. use only one repository for both applications and the common code
C. use one repository for both applications and another repository for the common code
D. create a npm package for the common code and add the dependency to it for both applications
Answer: B
Q16. Which statement is true of the Cloudant NoSQL service?
A. It prioritizes space savings over availability.
B. It prioritizes immediate consistency over availability.
C. It prioritizes availability over immediate consistency.
D. It prioritizes immediate consistency over performance.
Answer: C
Reference:http://www.redbooks.ibm.com/redpapers/pdfs/redp5126.pdf(p.17)
Q17. 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
Q18. 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)
Q19. After selecting All Documents in a Cloudant database using the Cloudant Dashboard, what is the result of selecting Include Docs in the Query Options and clicking Query as shown in the image?
A. A search index would be created for all the documents to make the query run faster.
B. All fields from each document will be shown in the display.
C. An error indicating an illegal operation is displayed because this option cannot be used unless a key range is specified.
D. The summary is replaced with a link to download the entire contents of all documents.
Answer: A
Q20. Which two capabilities are available in the dashDB Service Web Console to manage instances in IBM Bluemix PAAS?(Select two.)
A. sync data from an instance of Cloudant
B. load Comma Separated Values (CSV) from an external file
C. load relational data directly from another instance of dashDB
D. load relational data directly from an instance of SQL Database
E. load time series data directly from an instance of the Time Series database
Answer: B,E
Q21. 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
Q22. 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
Q23. If you have an instance of myApp with 1GB of memory and 1GB of disk running on Bluemix PaaS, what is the result of the commandcf scale myApp –k 2G?
A. scalingthe myApp vertically by increasing the memory to 2GB
B. scalingthe myApp vertically by increasing the memory to 3 GB
C. scalingthe myApp vertically by increasing the size of the disk to 2GB
D. scalingthe myApp vertically by increasing the size of the disk to 3 GB
Answer: C
Q24. How are viewscreated in Cloudant?
A. by creating a PrimaryIndex withdoc id’s
B. by creating a Secondary Index with doc id’s
C. by creating a Primary Index using the Map function
D. by creating a Secondary Index using the Map function
Answer: C
Q25. 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: B
Q26. 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.
Q27. Where are objects such as images, audio and video files stored inIBM Object Storage?
A. Group
B. Folder
C. Bucket
D. Container
Answer: D
Reference:http://www-01.ibm.com/support/knowledgecenter/SSQRB8/com.ibm.spectrum.si.doc/tpch_r_storagesy
stem_object.html
Q28. Which component is responsible for managing the deployment of an application running in IBM Bluemix PaaS?
A. Router
B. Load Balancer
C. Health Manager
D. Cloud Controller
Answer: D