Write three characteristic of microservices architecture? (Select Three)
Answer(s): A,B,D
Microservices are an architectural approach in which a single application is composed of many loosely coupled and independently deployable smaller components, or services. Characteristic of microservices:- Code can be updated more easily- new features or functionality can be added without touching the entire application.- Teams can use different stacks and different programming languages for different components.- Components can be scaled independently of one another, reducing the waste and cost associated with having to scale entire applications because a single feature might be facing too much load.
What tier of Object Storage class should be used where data is accessed only a few times per year?
Answer(s): C
Cold Vault (for cold data): Use this option for data accessed only a few times a year. A larger retrieval charge applies for reading data. Common use cases include long-term backup, large data set preservation, or older media content. Cold Vault includes a threshold for object size and storage period with a minimum billable object size of 256 KB and a minimum storage duration of 90 days. Objects smaller than the minimum size will incur a charge for the minimum billable object size. Incorrect Answers:Standard (for active data):Use this level for active data that's accessed multiple times a month. Your data is immediately available when needed. Common use cases include streaming mobile and web content, DevOps, analytics, collaboration and active content repositories. There are no retrieval charges, no minimum object size and no minimum duration requirement. Vault (for less active data): Use this level for less active data that's accessed once a month or less. Data is immediately available when needed. A low retrieval charge applies for reading data. Common use cases include backup and digital asset retention. Vault includes a threshold for object size and storage period with a minimum billable object size of 128 KB and a minimum storage duration of 30 days. Hot Tier:Hot tier is built in tier type of Smart tier.With Smart Tier, you no longer have to worry about selecting the right storage class for your workloads. Smart Tier will track your monthly activity and bill you one monthly capacity rate from three built-in pricing tiers: hot, cool, or cold. Smart Tier:Smart Tier employs automatic cost optimization to ensure that you get the lowest storage cost each month. This is valuable for all workloads, especially ones with variable or unpredictable data access patterns and ones that change over time.
Which is NOT a characteristic of the cloud defined by NIST?
Answer(s): B
Correct Answers:The Essential Characteristics of Cloud Computing according to NIST:On-demand self-service:A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider. Broad network access:Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, tablets, laptops, and workstations). Resource pooling: The provider's computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. There is a sense of location independence in that the customer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction (e.g., country, state, or datacenter). Examples of resources include storage, processing, memory, and network bandwidth. Rapid elasticity: Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be appropriated in any quantity at any time. Measured service:Cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported, providing transparency for both the provider and consumer of the utilized service. Self diagnosis: It's self made option, added for distraction.
True or False. Software or Application are centrally hosted and delivered over the internet under licensed on a subscription basis SaaS model?
Answer(s): A
Correct Answer:True Software as a service (SaaS) is a service model, where you use the software applications over the Internet provided by cloud provider, on demand and typically on a subscription basis. With SaaS, cloud providers host and manage the software application and underlying infrastructure, and they also handle any maintenance, such as software upgrades and security patching. Examples:Gmail, Google DOC Organizations are using SaaS (Software-as-a-Service) to avoid the need for ongoing upgrades, maintenance, and patching, in SaaS model, cloud provider offer compete software as a service over the internet to users (Example Google Doc, Gmail). In this model, Software or Application are centrally hosted and delivered over the internet under licensed on a subscription.
True Or False. IBM Watson Assistant helps you construct chatbots and virtual assistants for a spread of channels including mobile devices, messaging platforms, and even robots?
IBM Watson Assistant helps you construct chatbots and virtual assistants for a spread of channels including mobile devices, messaging platforms, and even robots. IBM Watson Assistant allows you to use the power of Watson to bring a conversational interface to your solution. Your customers can interact with Watson Assistant using natural language conversation.
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