Module 5 Flashcards
What is cloud storage?
Cloud storage is a computer model where data and files are stored in digital format in the cloud. Certain storage must be attached to a compute node before the storage can be accessed, whereas other storage types can be directly accessed either through the public internet or a dedicated private network connection.
4 types of cloud storage
Direct Attached, file, block and object
Direct attached
Direct attached (or local) storage is storage that is presented directly to a cloud-based server and is effectively either within the host server chassis or within the same rack.
File storage
File storage is typically presented to compute nodes as a network file system (NFS), which means that the storage is connected to compute nodes over a standard ethernet network.
Block storage
Block storage is presented to compute nodes using high-speed fiber connections, typically provisioned in volumes, which are mounted onto a compute node.
Object storage
Object storage is accessed via an API and doesn’t need an underlying compute node. Object storage offers infinite capacity as you can keep adding files to it and just pay for what you use. Compared to the other storage types, object storage is slowest in terms of read and write speeds.
Content delivery network (CDN)
is a distributed server network that accelerates internet content delivery by delivering temporarily stored or cached copies of website or media content to users based on their geographic location.
Direct attached, file, block, and object are considered which one of the following?
Types of cloud storage
Which type of storage is also referred to network attached storage, network file storage, or simply NFS?
File storage
Poor performance when data needs to be shared is considered a disadvantage of which of the following types of storage?
Direct attached
Highly available and resilient and will often include data encryption at rest and in transit are characteristics attached to what type of storage?
Block storage
Which type of storage is accessed via an application program interface (API) and is not attached to a compute node?
Object storage
Which one of the following describes a characteristic of object storage?
A great repository for all sorts of unstructured data types.
Which one of the following describes a characteristic of direct attached storage?
The operating system only last as long as the compute resource is attached to it.
What is the purpose of a content delivery network (CDN)?
To make websites faster and more responsive.
