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Cloud Digital Leader > CDL - Migration Services > Flashcards

CDL - Migration Services Flashcards

1
Q

What are GCPs DB migration Services?

A

DB Migration Service (DMS) - When you are migrating open-source, relational DBs.

BigQuery Data Transfer Service - Used to automate scheduled data movement into BQ using a fully managed data import service.

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2
Q

What are GCPs 2 Compute Engine migration services?

A

Migrate for Compute Engine - When you are migrating VMs/servicers from on-prem to another cloud Compute Engine. (Exam)

Migrate for Anthos - When you are migrating containers – VMs – from on-prem OR other clouds directly into containers in GKE.

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3
Q

What are GCPs 2 data/storage migration services?

A
  1. Cloud Storage Transfer Service (Exam) - Used to migrate storage data between cloud services (think AWS S3 and Cloud Storage)
  2. Transfer Appliance - When you have massive amounts of data (TBs) and its faster to ship physical devices.
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4
Q

What are the 3 types of migration options from on-prem into GCP?

A
  1. Lift and shift
  2. Improve and move
  3. Rip and Replace
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5
Q

What type of on-prem migration is the most labor intensive?

A

Rip & Replace

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6
Q

Define Lift and Shift. What are its benefits? Cons?

A

The moving of workloads from one environment to another with minor or zero modifications/refactoring.

Pros - least labor intensive (no upskilling needed) and fasted .

Cons - limited cloud benefits

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7
Q

Define Improve and Move.

A

Is the modernizing of a workload WHILE migrating to the cloud to take advantage of cloud-native capabilities.

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8
Q

Define Rip and Replace. What are its benefits? Cons?

A

Is the decommissioning of applications and completely redesigning and rewriting them as a cloud-native app.

Benefits - Can maximize value of cloud offerings.

Cons - most labor intensive and take the most time.

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9
Q

Define refactoring.

A

Refactoring of an application is the process of improving an apps internal structure (code) without affecting is external behavior (production/end users)

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10
Q

When is it ideal to use a Rip-and-Replace migration strategy?

A
  1. When you want to remove legacy technical debt/hardware
  2. When current app does not meet business/technical goals.
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11
Q

What are key cloud benefits that Lift and Shift migrations miss out on?

A
  1. Horizontal scalability
  2. Fine-graced/granular pricing
  3. Highly managed services
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12
Q

What are Lift and Shift migrations ideal?

A
  1. Little/no business need for change.
  2. Workloads can operate in target environment.
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13
Q

What situations of Improve-and-move migrations best suited for?

A
  1. When an apps architecture or infrastructure of an app is not supported in target environment.
  2. When a major update to the workload is not necessary
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14
Q

What are key considerations when migrating with a Improve-and-move strategy?

A
  1. Long than lift and shift
  2. App must be refactor in order to migrate
  3. Requires upskilling
  4. More time and effort of the life cycle of an app
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15
Q

What key considerations are important with a Rip-and-replace strategy?

A
  1. Time
  2. Upskilling
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16
Q

What are the four phases of a migration journey?

A
  1. Assess
  2. Plan
  3. Deploy
  4. Optimize
17
Q

What are 4 key benefits of Migrate for Compute Engine?

A
  1. Continuous replication - of disk data from source VMs to GCP
  2. No downtime - on transfers
  3. Clone & test - Post migration testing w/ roll–back if necessary
  4. GCP Console
17
Q

Which migration strategy is paired with Migrate for Compute Engine?

A

A lift and shift approach for VMs - w/ minor modifications from source to GCE environment.

18
Q

What is a key VP of Anthos?

A

Anthos uses a SINGLE CONTROL PLANE to manage kubernetes compute in hybrid scenarios.

18
Q

What is Anthos?

A

Its an application management platform used to manage HYRBD architectures (on prem (running VMWare) or w/ other CSPs)

19
Q

What is a GKE managed service mesh?

A
19
Q

What are Anthos core components?

A
  1. Managed service Mesh
  2. Migration
  3. Serverless
  4. Logging & monitoring
  5. Service management
  6. Cluster (multi), container, and infa management
  7. Configuration management
20
Q

What is a GKE cluster? What are its two components?

A

GKE clusters are groups of VMs that run containerized applications

They are comprised of 1) control plane and 2) nodes

21
Q

What does a cluster control plane do? What is it comprised of?

A

Manages clusters state and manages workloads across cluster nodes.

Comprised of:
1. API manager
2. Scheduler (?)
3. Controll manager (?)

22
Q

What does a GKE node to?

A

Nodes are VMs that run containerized workloads.

Contoles:
1. Container Runtime (such as Docker?)
2. Kublet agent - allows communication with the control plane.

23
Q

What is Migrate for Anthos (and GKE)

A

A tool to migrate and automatically convert workloads (VMs) into containers in GKE and Anthos.

24
Q

What supported source platforms does Migrate for Anthos (and GKE) work with?

A
  1. GKE
  2. Anthos
  3. Anthos cluster on VMware
  4. Anthos clusters on AWS
25
Q

What are 2 key benefits of Migrate for Anthos (and GKE)?

A
  1. Use of auto-generated container artifacts
  2. Offered at no charge and with no Anthos subscription required. Note: Charges for other GCP services remain – compute, storage, network, etc.)
26
Q

What is Storage Transfer Service? What are its key 4 functions.

A

Allows you to quickly import online data into cloud storage.

1.Move/back up data to a cloud storage bucket from a) other CSPs or b) your on-prem
2. Move a cloud storage bucket from one bucket to another (eg, from staging to production)
3. Periodically move data at part of a analytical workflow or data processing pipeline
4. Cross-region replication - via data backups

27
Q

What is object data?

A

Used in Storage Transfer Service, it is a named repository containing object data – such as images, video, documents, and code.

28
Q

What is Transfer Appliance?

A

A hardware appliance that you can use to securely migrate large volumes of data – from hundreds of TB up to 1 petabyte (PB)

Comes in two configurations:
1) 480 TB
2) 100TB

29
Q

Under what 2 conditions would you use Transfer Appliance? (exam)

A

1). When data is greater or = to 10 TB
2) When it would take more than 1 week to upload data over the network.

30
Q

What are key features of a Transfer Appliance?

A
31
Q
A
32
Q

What is a container artifact?

A

Refers to the files and components that make up a container image.

Images are standalone, executable packages that allow you to run applications.

33
Q

What are images? What are they comprised of?

A

Images are standalone executable packages that allow you to run programs.

Comprised of app code, system libraries, system tools, and settings.

Cloud Digital Leader (13 decks)

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