Container-based Multi-Instance Systems

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What is a key disadvantage of using multi-instance systems?

Faster startup times leading to higher operational expenses

Higher costs associated with managing multiple systems (correct)

Increased security risks due to shared databases

Limited ability to customize software for individual users

Why are container-based multi-instance systems best suited for products where users mostly work independently?

Because they offer high levels of data sharing among users

Because they are cost-effective for business products

Because they require minimal adaptation to customer needs

Because each user has an isolated version of the software and database (correct)

How does the flexibility of multi-instance databases contribute to their advantage?

By reducing the costs associated with renting VMs

By ensuring consistent database schemas across different customers

By limiting data sharing between customers

By tailoring each instance of the software to a customer's needs (correct)

What makes VM-based multi-instance systems more expensive compared to other approaches?

The costs of renting many VMs in the cloud and managing multiple systems Signup and view all the answers

Why is it crucial for software serving individuals to adopt a multi-instance system approach?

To allow for tailored versions of software to meet individual needs Signup and view all the answers

In what way does each customer having its own database contribute to the security advantage of multi-instance systems?

By preventing data leakage from one customer to another Signup and view all the answers

What makes updates in multi-instance systems more complex?

Instances being tailored to customer needs Signup and view all the answers

What type of virtualization technology can be used for a cloud-based system with many instances of applications or services that all use the same operating system?

Container-based virtualization Signup and view all the answers

Which characteristic of multi-instance systems allows some customers to continue working normally if a software failure impacts one customer?

Resilience Signup and view all the answers

In a multi-instance system, what characteristic allows a virtual server to have no external dependencies?

Runs on any hardware in the cloud Signup and view all the answers

What is a potential disadvantage of using multi-instance databases?

Security concerns about database sharing Signup and view all the answers

What virtualization technology provides hardware emulation simulating the operation of underlying hardware?

Hypervisor-based virtualization Signup and view all the answers

In the context of database organization, what model is usually best for very large databases?

Multi-tenant model Signup and view all the answers

What is a key advantage of using container-based virtualization over VM-based virtualization technology?

Simplifies the process of deploying virtual servers on the cloud Signup and view all the answers

What is a key advantage of VM-based multi-instance systems?

Guaranteed ACID transactions Signup and view all the answers

In a container-based virtualization system, what is usually the size of containers compared to VMs?

Megabytes Signup and view all the answers

What characteristic of container-based multi-instance systems helps in optimizing performance for very large databases?

Focusing effort on performance optimization Signup and view all the answers

Which type of virtualization technology uses virtual machines to implement virtual servers?

Hypervisor-based virtualization Signup and view all the answers

Container-based Multi-Instance Systems

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