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Q21. 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
Q22. 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
Q23. 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
Q24. 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
Q25. 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
Q26. 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
Q27. 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
Q28. 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)