Benefits of Cloud Computing

Question 1

What is High Availability, and why is it important?

Answer 1

High Availability refers to systems or services being available even if disrupted. It’s crucial because downtime negatively impacts business operations, and redundancy helps reduce or prevent such downtime.

Question 2

Why is High Availability important in cloud computing?

Answer 2

High Availability is important because downtime is detrimental to business. Redundancy, facilitated by cloud infrastructure, reduces or prevents downtime, ensuring continuous service availability.

Question 3

How does the cloud contribute to achieving High Availability?

Answer 3

The cloud facilitates High Availability by providing easy scalability, instant addition of servers, and automatic replacement of failed hardware. Clusters, paired with load balancers, improve availability, and cloud vendors offer uptime guarantees through SLAs.

Question 4

What is Scaling, and how does it relate to cloud computing?

Answer 4

Scaling involves increasing resources to meet demand. In cloud computing, scaling can be done instantly and automatically, ensuring resources match demand without overpaying for unnecessary resources.

Question 5

What challenges are associated with scaling in traditional on-premises environments?

Answer 5

Scaling in traditional environments requires time and money, as adding extra servers isn’t instantaneous. Cloud scaling resolves this by offering instant and automatic adjustment of resources.

Question 6

What is the difference between Horizontal and Vertical Scaling?

Answer 6

Horizontal Scaling involves adding more servers and distributing traffic across them, typically without downtime. Vertical Scaling, on the other hand, entails increasing compute resources on existing servers, often requiring manual intervention and downtime.

Question 7

What summarizes the concepts of High Availability and Scaling in cloud computing?

Answer 7

High Availability ensures redundancy against disruptions, with the cloud providing instant server provisioning and replacements. Scaling involves adding or removing compute capacity as needed, with the cloud enabling automatic and instant scaling, whether horizontally by adding more servers or vertically by increasing server resources.

Question 8

List the eight benefits of Cloud Computing.

Answer 8

1- Do things better and faster,
2- High Availability,
3- Security,
4- Scalability,
5- Governance,
6- Reliability,
7- Manageability,
8- Predictability

Question 9

What is high availability?

Answer 9

High availability refers to the ability of a computer system to remain functional even if some of its components fail or experience disruptions.

Question 10

Why is high availability important?

Answer 10

High availability is crucial for mission-critical systems that cannot tolerate any interruption of service, as downtime can lead to significant financial loss or damage.

Question 11

How can high availability be achieved?

Answer 11

High availability is achieved by introducing redundancy, spreading the load of critical systems across multiple physical servers or a cluster of servers.

Question 12

What is a challenge of traditional IT infrastructure in achieving high availability?

Answer 12

Traditional IT infrastructure often faces the challenge of limited physical servers, which makes it difficult to scale and maintain high availability.

Question 13

How does cloud computing address the challenge of high availability?

Answer 13

Cloud computing allows for instant creation of new servers, providing easy high availability by enabling users to add more servers instantly, even with a click of a button.

Question 14

What is scaling in cloud computing?

Answer 14

Scaling in cloud computing refers to the ability to increase or decrease resources to meet the demands of customers or users.

Question 15

: How does the cloud help with scaling?

Answer 15

The cloud allows for instant and automatic addition or removal of servers or resources to meet the fluctuating demands of websites or applications.

Question 16

What is the difference between horizontal and vertical scaling?

Answer 16

Horizontal scaling, also known as scaling out, involves adding additional copies of existing servers, while vertical scaling, or scaling up, involves increasing the resources of existing servers.

Question 17

Which scaling method is more commonly associated with cloud computing?

Answer 17

: Horizontal scaling is typically the preferred method in cloud computing, as it is automatic and does not require downtime, unlike vertical scaling.

Question 18

What is elasticity in cloud computing?

Answer 18

Elasticity refers to the ability to dynamically adjust resources based on demand, scaling up or down as needed to optimize cost and performance.

Question 19

What is the role of a load balancer in scaling?

Answer 19

A load balancer distributes incoming traffic across multiple servers, ensuring that no single server becomes overwhelmed and facilitating horizontal scaling.

Question 20

How does cloud computing ensure high availability for managed services?

Answer 20

Cloud vendors use their own methods of high availability in the background, often offering uptime guarantees through service level agreements (SLAs).

Question 21

What is the impact of downtime on business operations?

Answer 21

Downtime can have severe consequences for businesses, leading to loss of revenue, damage to reputation, and dissatisfied customers.

Question 22

Why is redundancy important in achieving high availability?

Answer 22

Redundancy ensures that critical systems have backup components or servers in place, minimizing the risk of downtime due to component failure or disruption.

Question 23

How does horizontal scaling differ from vertical scaling in terms of adding resources?

Answer 23

Horizontal scaling adds additional copies of existing servers, while vertical scaling increases the resources of existing servers without adding more instances.