Reference regions availability

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QUESTION 367A user is storing a large number of objects on AWS S3. The user wants to implement the search functionality among the objects. How can the user achieve this?A.Use the indexing feature of S3.B.Tag the objects with the metadata to search on that.C.Use the query functionality of S3.D.Make your own DB system which stores the S3 metadata for the search functionality.Correct Answer: DSection: (none)ExplanationExplanation/Reference:Explanation:In Amazon Web Services, AWS S3 does not provide any query facility. To retrieve a specific object, the user needs to know the exact bucket / object key. In thiscase it is recommended to have an own DB system which manages the S3 metadata and key mapping.Reference: QUESTION 368After setting up a Virtual Private Cloud (VPC) network, a more experienced cloud engineer suggests that to achieve low network latency and high network throughputyou should look into setting up a placement group. You know nothing about this, but begin to do some research about it and are especially curious about itslimitations. Which of the below statements is wrong in describing the limitations of a placement group?A.Although launching multiple instance types into a placement group is possible, this reduces the likelihood that the required capacity will be available for yourlaunch to succeed.B.A placement group can span multiple Availability Zones.C.You can't move an existing instance into a placement group.D.A placement group can span peered VPCsCorrect Answer: BSection: (none)ExplanationExplanation/Reference:Explanation:A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10Gbps network. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and thehighest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networking.Placement groups have the following limitations:The name you specify for a placement group a name must be unique within your AWS account.A placement group can't span multiple Availability Zones.Although launching multiple instance types into a placement group is possible, this reduces the likelihood that the required capacity will be available for your launch tosucceed. We recommend using the same instance type for all instances in a placement group.You can't merge placement groups. Instead, you must terminate the instances in one placement group, and then relaunch those instances into the other placementgroup. A placement group can span peered VPCs; however, you will not get full-bisection bandwidth between instances in peered VPCs. For more information aboutVCEConvert.com

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