IBM Cloud Advocate v2 C1000-142 Exam Practice Test

Answer : D

A transit gateway connects VPC resources across multiple regions. VPCs can be connected together with single or multiple transit gateways. As new networks are added to a transit gateway, they are automatically connected to other networks that are also connected to the gateway.

Answer : D

Kubernetes relies on YAML configuration files to maintain the application state.

Answer : D

A security group acts as a virtual firewall that controls the traffic for one or more virtual server instances. A security group is a collection of rules that specify whether to allow or deny traffic for an associated instance. You can associate an instance with one or more security groups and edit the security group rules An Access Control List (ACL) can manage (that is, it can allow or deny) inbound and outbound traffic for a subnet. An ACL is stateless, which means that inbound and outbound rules must be specified separately and explicitly. Each ACL consists of rules, based on a source IP, source port, destination IP, destination port, and protocol. Note : Security Groups control traffic at the virtual service instance level and n Access Control List (ACL) control the traffic at subnet level.

Answer : B

IBM Cloud Developers are responsible for writing code to create and maintain cloud applications.

Answer : A, B, C

IBM Cloud Databases and IBM Cloud Database-as-a-Services (DBaaS) are fully managed by IBM, unless customers specifically request to manage some aspects themselves.

IBM Cloud Databases and DBaaS offers your organization significant financial, operational, and strategic benefits like below:

- Your organization pays a predictable periodic charge based on the resources you consume---there's no need to purchase additional capacity to have on hand for hypothetical future needs.

- You can quickly and easily scale-up and down as per your need.

- They are highly available, secure with IBM enterprise security, compatible with open-source databases, scalable, and economical including features like default encryption of data at rest and in-transit and integrated identity and access management controls. Some also meet specific regulatory compliance standards.

IBM's catalog of database services includes:

1. IBM Cloudant, IBM CloudDatabases for etcd

2. IBM Cloud Databases for MongoDB

3. IBM Cloud Databases for PostgreSQL

4. IBM Cloud Databases for Redis Elasticsearch

Answer : B, C

Hybrid Cloud combines public cloud, private cloud and on-premises infrastructure to create a single, flexible, cost-optimal IT infrastructure. Hybrid Cloud model best suits where security and regulatory compliance required. Use Cases : Security and regulatory compliance: We can reserve sensitive data and highly regulated workloads behind-the firewall in private cloud and can use more economical public cloud resources for less-sensitive workloads and data. Resource optimization, and cost savings: We can manage predictable capacity workload on private cloud and can migrate unpredictable workloads to public cloud to scale up quickly and automatically. Cloud Scaling : A business has on-premise infrastructure that can handle a certain amount of user load. The hybrid allows them to scale up in response to a larger load then automatically de-provision resources when they no longer need them. Multicloud: Composite cloud are applications that are spread across multiple cloud environments. If a business has on-premise architecture that allows them to run three components of their app but the system gets bogged down in busier times, such as holidays, they take advantage of the multicloud architecture by composing their application across multiple cloud environments. In-Correct Answers - Full control over hardware and software choices : In Private cloud, customer have full control over IT infrastructure, They are free to purchase the hardware and software as per their choice. They can customize(configure) servers and software as needed. - Greater visibility into security and access control, In Private Cloud, all workloads run behind the customers' own firewall. - Greater elasticity and scalability: With public cloud, a customer can add capacity in response to unexpended surges in traffic, without purchasing and installing new hardware. [Exam Tips] : You can expect few questions from here in your exam, so before appearing for exam, you should be aware of use cases of private, public and hybrid cloud.

Answer : A

The term 'cloud computing' also refers to the technology that makes cloud work. This includes some form of virtualized IT infrastructure---servers, operating system software, networking, and other infrastructure that's abstracted, using special software, so that it can be pooled and divided irrespective of physical hardware boundaries. For example, a single hardware server can be divided into multiple virtual servers. Virtualization enables cloud providers to make maximum use of their data center resources. Not surprisingly, many corporations have adopted the cloud delivery model for their on-premises infrastructure so they can realize maximum utilization and cost savings vs. traditional IT infrastructure and offer the same self-service and agility to their end-users. Cloud computing benefits Flexibility: Users can scale services to fit their needs, customize applications and access cloud services from anywhere with an internet connection. Efficiency: Enterprise users can get applications to market quickly, without worrying about underlying infrastructure costs or maintenance. Strategic value: Cloud services give enterprises a competitive advantage by providing the most innovative technology available.