An organization wants to use a vendor SaaS application but is concerned about the lack of cloud security. What type of cloud architecture would be the most appropriate?

An organization wants to use a vendor SaaS application but is concerned about the lack of cloud security. What type of cloud architecture would be the most appropriate?

• Private
• Community
• Hybrid
• Public 

 

EXPLANATION

Private cloud is a type of cloud computing that delivers similar advantages to public cloud, including scalability and self-service, but through a proprietary architecture

Private clouds are often deployed when public clouds are deemed inappropriate or inadequate for the needs of a business. For example, a public cloud might not provide the level of service availability or uptime that an organization needs. In other cases, the risk of hosting a mission-critical workload in the public cloud might exceed an organization's risk tolerance, or there might be security or regulatory concerns related to the use of a multi-tenant environment. In these cases, an enterprise might opt to invest in a private cloud to realize the benefits of cloud computing, while maintaining total control and ownership of its environment. 

 

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What was the first graphical computer game implemented on a computer?

What was the first graphical computer game implemented on a computer?

• Pong
• Pac-Man
• Chess
• Baby 

EXPLANATION

The first commercially available video game, Pong (Atari 1973), was introduced 11 years after Spacewar!
Pong is a simple concept that has turned out to be surprisingly durable even though the graphics are simply white rectangles on a black background. In the beginning, Pong was placed at entertainment venues, markets, and fun fairs, next to mechanical pastimes and as a supplement to these. This is the same kind of place where the game Space Invaders (Taito 1977) was also introduced. Space Invaders defines most of the basic parameters of what I call the classical action game: A player controls an object/an actor against some enemies; a score is kept; the game is real-time and requires fast reflexes; the player has a fixed amount of lives (typically three); the game is based on successive levels of increasing difficulty; the game (or just the title) places the player’s action as part of a minimal narrative.

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Which of these is NOT a way that cloud architecture is different from a traditional architecture?

Which of these is NOT a way that cloud architecture is different from a traditional architecture?

• Cloud manages and handles dynamic workloads
• Cloud provides hardware on demand
• Cloud scales resources on demand
• Cloud tightly couples the client and server 

EXPLANATION

 The cloud architecture is different from the traditional hosting in many ways.

1. In cloud architecture, the server hardware is provided and maintenance to it is done by the service provider.

2. Users can draw the services they require over the internet eliminating the need to purchase any new hardware.

3. Users pay for the services they use. It does away the need to pay any fixed monthly plan fee as in traditional hosting. It also ensures users do not have to buy resources they do not require and leave them un-utilized.

4. Cloud architecture is scalable on demand. Users can increase or decrease their resources depending on their business needs with just a few clicks without the need of any physical effort as in traditional hosting.

5. Cloud hosting is capable of handling workloads seamlessly without any possibility of failure. Since it functions as a network, even if there is a failure in one of the components, the services are available from the other active components.

6. Cloud offers better data security and recovery from any natural disasters and human errors as it backs up data over multiple locations.

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Which of the following is not a cloud computing deployment model?

Which of the following is not a cloud computing deployment model?

• Hybrid cloud
• Commercial cloud
• Public cloud
• Private cloud 

EXPLANATION

Cloud Computing Deployment Models

Cloud deployment models indicate how the cloud services are made available to users. The four deployment models associated with cloud computing are as follows:

•

Public cloud As the name suggests, this type of cloud deployment model supports all users who want to make use of a computing resource, such as hardware (OS, CPU, memory, storage) or software (application server, database) on a subscription basis. Most common uses of public clouds are for application development and testing, non-mission-critical tasks such as file-sharing, and e-mail service.

•

Private cloud True to its name, a private cloud is typically infrastructure used by a single organization. Such infrastructure may be managed by the organization itself to support various user groups, or it could be managed by a service provider that takes care of it either on-site or off-site. Private clouds are more expensive than public clouds due to the capital expenditure involved in acquiring and maintaining them. However, private clouds are better able to address the security and privacy concerns of organizations today.

•

Hybrid cloud In a hybrid cloud, an organization makes use of interconnected private and public cloud infrastructure. Many organizations make use of this model when they need to scale up their IT infrastructure rapidly, such as when leveraging public clouds to supplement the capacity available within a private cloud. For example, if an online retailer needs more computing resources to run its Web applications during the holiday season it may attain those resources via public clouds.

•

Community cloud This deployment model supports multiple organizations sharing computing resources that are part of a community; examples include universities cooperating in certain areas of research, or police departments within a county or state sharing computing resources. Access to a community cloud environment is typically restricted to the members of the community.

With public clouds, the cost is typically low for the end user and there is no capital expenditure involved. Use of private clouds involves capital expenditure, but the expenditure is still lower than the cost of owning and operating the infrastructure due to private clouds' greater level of consolidation and resource pooling. Private clouds also offer more security and compliance support than public clouds. As such, some organizations may choose to use private clouds for their more mission-critical, secure applications and public clouds for basic tasks such as application development and testing environments, and e-mail services.

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Who is considered the father of the World Wide Web?

Who is considered the father of the World Wide Web?

• Charles Babbage
• Al Gore
• Vint Cerf
• Sir Tim Burners-Lee 

 

EXPLANATION

The World Wide Web, commonly known as the Web, is an information system where documents and other web resources are identified by Uniform Resource Locators, which may be interlinked by hypertext, and are accessible over the Internet.  

Tim Berners-Lee's vision of a global hyperlinked information system became a possibility by the second half of the 1980s.^[8] By 1985, the global Internet began to proliferate in Europe and the Domain Name System (upon which the Uniform Resource Locator is built) came into being. In 1988 the first direct IP connection between Europe and North America was made and Berners-Lee began to openly discuss the possibility of a web-like system at CERN.^[9]

 

 

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