Exam Code: C5050-285 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: IBM Cloud Platform Application Development V1
Certification Provider: IBM
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2021 May C5050-285 Study Guide Questions:
Q1. 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
Q2. When a Node.js application is configured for IBM Bluemix Live Sync Debug mode, opening the url https://<app-host>.mybluemix.net/bluemix-debug/manage shows:
What will occur when the Restart button is selected?
A. Redeploy and restart the application.
B. Restart without redeploying application.
C. Restart the managed services and not the application.
D. Recycle the application memory and jump to the current breakpoint.
Answer: B
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
Update C5050-285 exam question:
Q4. 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
Q5. Which IBM Cloud offering model provides an IBM solution ready for use by customers?
A. Platform as a Service
B. Software as a Service
C. Application as a Service
D. Infrastructure as a Service
Answer: B
Explanation:
The Software as a Service model provides business applications on a ready-to-use and self-service model. The IBM Cloud Marketplace is a place where enterprise cloud customers can discover, learn, try and buy cloud services from IBM and Business Partners.
Q6. 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)
Validated C5050-285 preparation:
Q7. 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
Q8. 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)
Q9. 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: C
Q10. 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.