To answer this question, you need to understand the major cloud computing platforms.

Option A) IBM Deep Blue - This option is incorrect because IBM Deep Blue is not a cloud computing platform. It is a supercomputer that was developed by IBM for playing chess.

Option B) Google 101 - This option is incorrect because Google does not have a cloud computing platform called Google 101. However, Google does have a cloud computing platform called Google Cloud Platform (GCP).

Option C) Microsoft Azure - This option is incorrect because Microsoft Azure is a major cloud computing platform. It provides a wide range of cloud services and solutions for businesses.

Option D) Amazon EC2 - This option is incorrect because Amazon EC2 (Elastic Compute Cloud) is a major cloud computing platform provided by Amazon Web Services (AWS). It allows users to rent virtual servers and run applications on the cloud.

The correct answer is A) IBM Deep Blue. This option is not a major cloud computing platform.

• Thanks
• Wrong explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) Too expensive - This option is incorrect because cost is not the number one concern about cloud computing. While cloud computing can have costs associated with it, such as subscription fees or data storage costs, it is widely adopted because it can often be more cost-effective compared to traditional on-premises IT infrastructure.

Option B) Security concerns - This option is correct. Security is considered the number one concern about cloud computing. Organizations are often worried about the safety and privacy of their data when it is stored and processed in the cloud. They may have concerns about data breaches, unauthorized access, or data loss.

Option C) Too many platforms - This option is incorrect. While there are multiple cloud platforms available, such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud, the abundance of platforms is not the primary concern about cloud computing. In fact, having multiple platforms can provide organizations with more choices and flexibility when selecting the most suitable cloud services for their needs.

Option D) Accessibility - This option is incorrect. Accessibility is not the number one concern about cloud computing. In fact, one of the advantages of cloud computing is that it provides remote access to data and applications from any location with an internet connection, making it highly accessible.

The correct answer is B) Security concerns. This option is correct because security is considered the number one concern about cloud computing, with organizations often worried about the safety and privacy of their data in the cloud.

• Thanks
• Wrong explanation

To answer this question, you need to understand the different types in Java servlets and their methods.

Let's go through each option to understand which types define the methods getAttribute() and setAttribute():

Option A) HttpSession - This option is correct. The HttpSession interface in Java servlets defines the methods getAttribute() and setAttribute(). These methods are used to get and set attributes associated with a session.

Option B) ServletRequest - This option is correct. The ServletRequest interface in Java servlets also defines the methods getAttribute() and setAttribute(). These methods are used to get and set attributes associated with a specific request.

Option C) ServletResponse - This option is incorrect. The ServletResponse interface does not define the methods getAttribute() and setAttribute(). This interface is used to send response data back to the client.

Option D) ServletContext - This option is correct. The ServletContext interface in Java servlets defines the methods getAttribute() and setAttribute(). These methods are used to get and set attributes associated with the entire web application.

Option E) ServletConfig - This option is incorrect. The ServletConfig interface does not define the methods getAttribute() and setAttribute(). This interface is used to provide configuration information to a servlet.

Option F) SessionConfig - This option is incorrect. There is no built-in type called SessionConfig in Java servlets.

The correct answers are A, B, and D. These options define the methods getAttribute() and setAttribute().

Therefore, the correct answer is A, B, and D.

• Thanks
• Wrong explanation

To answer this question, we need to understand the listener event types in the J2EE 1.4 API. Let's go through each option to understand why it is correct or incorrect:

Option A) HttpSessionEvent - This option is a valid listener event type in the J2EE 1.4 API. It is used to track changes to HttpSession objects.

Option B) ServletRequestEvent - This option is a valid listener event type in the J2EE 1.4 API. It is used to track changes to ServletRequest objects.

Option C) HttpSessionBindingEvent - This option is a valid listener event type in the J2EE 1.4 API. It is used to track changes to HttpSession attributes.

Option D) HttpSessionAttributeEvent - This option is not a valid listener event type in the J2EE 1.4 API. It is incorrect. Therefore, this option is the correct answer.

Option E) ServletContextAttributeEvent - This option is a valid listener event type in the J2EE 1.4 API. It is used to track changes to ServletContext attributes.

The correct answer is D. This option is correct because HttpSessionAttributeEvent is not a valid listener event type in the J2EE 1.4 API.

• Thanks
• Wrong explanation