Google Cloud Platform Fundamentals: Core Infrastructure

Your Cloud Storage objects live in buckets. Which of these characteristics do you define on a per-bucket basis? Choose all that are correct (3 correct answers).

- A globally-unique name - A default storage class - A geographic location

Service accounts are used to provide which of the following? (Choose all that are correct. Choose 3 responses.)

- Authentication between Google Cloud Platform services - A way to restrict the actions a resource (such as a VM) can perform - A way to allow users to act with service account permissions

Choose fundamental characteristics of cloud computing. Mark all that are correct (4 correct responses).

- Customers pay only for what they use or reserve - Customers can scale their resource use up and down - Computing resources available on-demand and self-service - Resources are available from anywhere over the network

How do the Nearline and Coldline storage classes differ from Multi-regional and Regional? Choose all that are correct (2 responses).

- Nearline and Coldline assess additional retrieval fees. - Nearline and Coldline assess lower storage fees.

Consider a single hierarchy of GCP resources. Which of these situations is possible? (Choose all that are correct. Choose 3 responses.)

- There is no organization node, and there are no folders. - There is an organization node, and there is at least one folder. - There is an organization node, and there are no folders.

How are Cloud Datastore and Cloud Bigtable alike? Choose all that are correct (2 correct answers)

- They are both highly scalable. - They are both NoSQL databases.

How do VPC routers and firewalls work?

- They are managed by Google as a built-in feature.

Services account

- To provide identity server-to-server interaction in a project. - Authenticate from one service to other - To control privileges used by resource

When would you choose to have an organization node? (Choose all that are correct. Choose 2 responses.)

- When you want to create folders. Explain: "Correct! Folders require an organization node. Organization nodes are optional, but if you want to create folders, having one is mandatory." - When you want to apply organization-wide policies centrally. Explain: "Correct! Organization nodes let you apply policies centrally. Organization nodes are optional, but if you want to define policies that apply to all the projects in your organization, having one is mandatory."

IAM roles: - Primitive role - Predefined role - Custom - Services account

=> Custom roles can only be used at project and organization levels.

Choose an application that would be suitable for running in a Preemptible VM.

A batch job that can be checkpointed and restarted

You manufacture devices with sensors and need to stream huge amounts of data from these devices to a storage option in the cloud. Which Google Cloud Platform storage option is the best choice for your application?

Cloud Bigtable

You are building a small application. If possible, you'd like this application's data storage to be at no additional charge. Which service has a free daily quota, separate from any free trials?

Cloud Datastore

Your application needs a relational database, and it expects to talk to MySQL. Which storage option is the best choice for your application?

Cloud SQL

Which database service presents a MySQL or PostgreSQL interface to clients?

Cloud SQL. Explain: Correct! Each Cloud SQL database is configured at creation time for either MySQL or PostgreSQL. Cloud Spanner uses ANSI SQL 2011 with extensions.

Your application needs to store data with strong transactional consistency, and you want seamless scaling up. Which storage option is the best choice for your application?

Cloud Spanner

Which database service can scale to higher database sizes?

Cloud Spanner. Explain: Correct! Cloud Spanner can scale to petabyte database sizes, while Cloud SQL is limited by the size of the database instances you choose. At the time this quiz was created, the maximum was 10,230 GB.

Which database service offers transactional consistency at global scale?

Cloud Spanner. Explain: Correct! Cloud Spanner offers transactional consistency at global scale.

Which GCP storage service is often the ingestion point for data being moved into the cloud, and is frequently the long-term storage location for data?

Cloud Storage

You are developing an application that transcodes large video files. Which storage option is the best choice for your application?

Cloud Storage

What kind of customer benefits most from billing by the second for cloud resources such as virtual machines?

Customers who create and run many virtual machines

For which of these interconnect options is a Service Level Agreement available?

Dedicated Interconnect

Some developers think of Cloud Bigtable as a persistent hashtable. What does that mean?

Each item in the database can be sparsely (thưa thớt) populated, and is looked up with a single key.

True or false: Cloud Storage is well suited to providing the root file system of a Linux virtual machine.

False

True or false: If you increase the size of a subnet in a custom VPC network, the IP addresses of virtual machines already on that subnet might be affected.

False

True or False: In Google Cloud IAM: if a policy applied at the project level gives you Owner permissions, your access to an individual resource in that project might be restricted to View permission if someone applies a more restrictive policy directly to that resource.

False Explain: "Correct! Policies are a union of those applied on resource itself and those inherited from higher levels in the hierarchy. If a parent policy is less restrictive, it overrides a more restrictive policy applied on the resource. If a parent policy is more restrictive, it does not override a less restrictive policy applied on the resource. Therefore, access granted at a higher level in the hierarchy cannot be taken away by policies applied at a lower level in the hierarchy."

True or false: Google manages every aspect of Google Cloud Platform customers' security.

False Explain: "You chose the correct response! Google Cloud Platform manages the lower layers of the security stack, such as physical security, and gives customers tools for managing the higher layers."

True or false: Each table in NoSQL databases such as Cloud Bigtable has a single schema that is enforced by the database engine itself.

False Explain: Correct! NoSQL databases such as Cloud Bigtable are suitable when all items in the database needn't have their integrity checked by a database schema. Why not? Maybe you want your database items to contain variable fields, or maybe because you simply want your application to manage database integrity.

Why might a GCP customer use resources in several zones within a region?

For improved fault tolerance Correct. As part of building a fault-tolerant application, you can spread your resources across multiple zones in a region.

How do GCP customers and Google Cloud Platform divide responsibility for security?

Google takes care of the lower parts of the stack, and customers are responsible for the higher parts.

What type of cloud computing service provides raw compute, storage, and network, organized in ways that are familiar from physical data centers?

Infrastructure as a Service

An application running in a Compute Engine virtual machine needs high-performance scratch space. Which type of storage meets this need?

Local SSD

Which statement is true about Google VPC networks and subnets?

Networks are global; subnets are regional

To get resources from a cloud computing provider, is working with a person at the provider required?

No

Can IAM policies that are implemented higher in the resource hierarchy take away access that is granted by lower-level policies?

No Expalain: "Policies implemented at a higher level in the hierarchy can't take away access that's granted at lower level. For example, suppose that a policy applied on a project gives user Jane the right to modify a Cloud Storage bucket. But a policy at the organization level says that she can only view Cloud Storage buckets, not change them. The more generous policy is the one that takes effect. Jane can modify the bucket."

Your company has two GCP projects, and you want them to share policies. What is the less error-prone way to set this up?

Place both projects into a folder, and define the policies on the folder. Explain: "Place both projects into a folder, and define the policies on the folder."

What type of cloud computing service lets you bind your application code to libraries that give access to the infrastructure your application needs?

Platform as a Service

What is the difference between IAM primitive roles and IAM predefined roles?

Primitive roles affect all resources in a GCP project. Predefined roles apply to a particular service in a project.

Order these IAM role types from broadest to finest-grained.

Primitive roles, predefined roles, custom roles

Choose the correct completion: Services and APIs are enabled on a per-__________ basis.

Project

Which of these values is globally unique, permanent, and unchangeable, but chosen by the customer?

The project ID

A GCP customer wants to load-balance traffic among the back-end VMs that form part of a multi-tier application. Which load-balancing option should this customer choose?

The regional internal load balancer

Which statement is true about the zones within a region?

The zones within a region have fast network connectivity among them.

Which statement is true about objects in Cloud Storage?

They are immutable, and new versions overwrite old unless you turn on versioning.

Choose a fundamental characteristic of devices in a virtualized data center.

They are manageable separately from the underlying hardware.

Why might a GCP customer use resources in several regions around the world?

To bring their applications closer to users around the world, and for improved fault tolerance

What is the main reason customers choose Preemptible VMs?

To reduce cost.

Why would a customer consider the Coldline storage class?

To save money on storing infrequently accessed data.

True or False: Google Cloud Load Balancing allows you to balance HTTP-based traffic across multiple Compute Engine regions.

True

True or false: You can create Compute Engine virtual machines from the command line.

True

True or false? In Google Cloud VPCs, subnets have regional scope.

True

True or False: All Google Cloud Platform resources are associated with a project.

True "Correct! All Google Cloud Platform resources are associated with a project."

True or false: Cloud Datastore databases can span App Engine and Compute Engine applications.

True.

How do Compute Engine customers choose between big VMs and many VMs?

Use big VMs for in-memory databases and CPU-intensive analytics; use many VMs for fault tolerance and elasticity

Does a cloud computing service let you scale your resource use up and down?

Yes

Which statement is true about billing for solutions deployed using Cloud Marketplace (formerly known as Cloud Launcher)?

You pay only for the underlying GCP resources you use, with the possible addition of extra fees for commercially licensed software.