Tag: java

Questions Related to java

  1. When you implement entity or session bean methods to use SQL commands you provide.

  2. When the bean's container handles data storage and retrieval.

  3. When the J2EE server is never shut down

  4. When changes to database data are lost during a crash.


Correct Option: A
  1. By thin clients.

  2. By calls to the database.

  3. By the J2EE server.

  4. By the bean's container.


Correct Option: C

In a multitiered application, which tier is the browser in?

  1. First tier.

  2. Second tier.

  3. Third tier.

  4. Fourth tier


Correct Option: A
  1. It's always going to be less expensive and more secure than local computing.

  2. You can access your data from any computer in the world as long as you have an Internet connection.

  3. Only a few small companies are investing in the technology, making it a risky venture.

  4. none of these


Correct Option: B
Explanation:

To answer this question, the user needs to have a basic understanding of cloud computing.

Cloud computing refers to the practice of using remote servers hosted on the internet to store, manage, and process data. It offers various benefits such as scalability, flexibility, and cost-effectiveness. Let's go through each option and explain why it is right or wrong:

A. It's always going to be less expensive and more secure than local computing.

This statement is incorrect. While cloud computing can be cost-effective and offer enhanced security measures, it is not always guaranteed to be less expensive or more secure than local computing. The cost and security of cloud computing can vary depending on factors such as the specific cloud service provider and the level of security measures implemented.

B. You can access your data from any computer in the world as long as you have an Internet connection.

This statement is correct. One of the key advantages of cloud computing is the ability to access data and applications from anywhere with an internet connection. This flexibility allows users to access their data and work remotely from different devices and locations.

C. Only a few small companies are investing in the technology, making it a risky venture.

This statement is incorrect. Cloud computing has gained widespread adoption and investment from both small and large companies across various industries. It is a rapidly growing technology that offers numerous benefits and opportunities for businesses.

D. none of these

This statement is incorrect. As explained above, option B is correct as it accurately describes one of the advantages of cloud computing.

The Answer is: B

  1. A standard cloud service offered via the Internet

  2. A cloud architecture maintained within an enterprise data center.

  3. A cloud service inaccessible to anyone but the cultural elite

  4. none of these


Correct Option: B
Explanation:

To understand what a private cloud is, the user needs to have a basic understanding of cloud computing and the different types of cloud architectures.

A private cloud is a cloud architecture maintained within an enterprise data center. This means that the cloud infrastructure is owned, operated, and maintained by a specific organization or enterprise. Unlike a public cloud, which is accessible to anyone via the internet, a private cloud is specifically designed and dedicated to meet the needs and requirements of a single organization.

Now let's go through each option and explain why it is right or wrong:

A. A standard cloud service offered via the Internet: This option is incorrect because a private cloud is not a standard cloud service offered via the internet. A private cloud is a distinct architecture that is maintained within an enterprise data center.

B. A cloud architecture maintained within an enterprise data center: This option is correct. As explained above, a private cloud is a cloud architecture that is maintained within an enterprise data center.

C. A cloud service inaccessible to anyone but the cultural elite: This option is incorrect. The accessibility of a private cloud is not based on cultural elite or exclusive access. It is a cloud architecture dedicated to meeting the needs of a specific organization.

D. None of these: This option is incorrect because option B is the correct answer. A private cloud is a cloud architecture maintained within an enterprise data center.

The Answer is: B

Amazon Web Services is which type of cloud computing distribution model?

  1. Software as a Service (SAAS)

  2. Platform as a Service (PAAS)

  3. Infrastructure as a Service (IAAS)

  4. none of these


Correct Option: C

AI Explanation

To answer this question, you need to understand the different types of cloud computing distribution models.

Option A) Software as a Service (SaaS) - This option is incorrect. SaaS refers to a cloud computing distribution model where software applications are provided over the internet on a subscription basis. Users do not have to worry about managing the underlying infrastructure or platform.

Option B) Platform as a Service (PaaS) - This option is incorrect. PaaS refers to a cloud computing distribution model where a platform is provided over the internet for developers to build, test, and deploy applications. Users do not have to worry about managing the underlying infrastructure, but they have control over the applications they build.

Option C) Infrastructure as a Service (IaaS) - This option is correct. IaaS refers to a cloud computing distribution model where virtualized computing resources, such as virtual machines, storage, and networks, are provided over the internet. Users have control over the operating systems, applications, and data on the infrastructure.

Option D) None of these - This option is incorrect. Amazon Web Services (AWS) is a cloud computing platform that falls under the Infrastructure as a Service (IaaS) distribution model.

The correct answer is C) Infrastructure as a Service (IAAS). This option is correct because Amazon Web Services (AWS) provides virtualized computing resources over the internet, allowing users to have control over their operating systems, applications, and data.

Please let me know if I can help you with anything else.

What is Cloud Foundry?

  1. A factory that produces cloud components

  2. An industry wide PaaS initiative

  3. VMware-led open source PaaS.

  4. none of these


Correct Option: C
Explanation:

To answer this question, the user needs to know what Cloud Foundry is. Cloud Foundry is a platform as a service (PaaS) that allows developers to build, deploy, and scale applications quickly and easily.

Now let's explain each option and why it is right or wrong:

A. A factory that produces cloud components: This option is incorrect. Cloud Foundry is a software platform, not a physical factory.

B. An industry-wide PaaS initiative: This option is partially correct. Cloud Foundry is indeed a PaaS initiative, but it is not an industry-wide initiative. It was initially created by VMware, but it is now managed by the Cloud Foundry Foundation, which is a non-profit organization.

C. VMware-led open source PaaS: This option is mostly correct. Cloud Foundry was initially created by VMware and is now managed by the Cloud Foundry Foundation, which is an open-source organization. It is a PaaS that allows developers to build, deploy, and scale applications quickly and easily.

D. None of these: This option is incorrect. Options B and C are both partially correct and together they provide a complete and accurate description of Cloud Foundry.

Therefore, the answer is: C. VMware-led open source PaaS.

  1. Platform as a Service (PaaS)

  2. Infrastructure as a Service (IaaS)

  3. Software as a Service (SaaS).

  4. none of these


Correct Option: C
  1. It's a Platform as a Service (PaaS) model.

  2. Automatic Scalability is built in with GAE. As a developer you don't need to worry about application scalability

  3. You can decide on how many physical servers required for hosting your application.

  4. The applications deployed on GAE have the same security, privacy and data protection policies as that of Google's applications. So, applications can take advantage of reliability, performance and security of Google's infrastructure.


Correct Option: C
  1. Hire software developers, and build dynamic page.

  2. Use ZOHO creator to build the required form, and embed in html page.

  3. Use Google App Engine (GAE) to build and deploy dynamic page.

  4. none of these


Correct Option: B