Tag: architecture

Questions Related to architecture

In which of the following ways can client invoke WebServices through JAX-WS API's?
technology architecture

  1. Static and Dynamic only

  2. static only

  3. Synchronous and Asynchronous

  4. synchronous only.

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Correct Option: A,C

Consider application security measures such as encryption, SSL, authentication and authorization. What is the relation between Performance and Security in an application?
technology architecture

  1. They are not related to each other in any way

  2. High Security generally results in high performance

  3. High performance is a pre-requisite for secure systems

  4. Security and Performance are inversely proportional

  5. Low performance systems cannot be secure

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Correct Option: D

Happy Joe Banking Corporation is building a Banking application to provide online access to their account holders. They have chosen two SUN 450s for their web server cluster and one SUN E10000 for their application server. The business requirements indicate that to become a customer, a person must have at least a primary checking account with the bank. Further, since the customer will be using the Internet to view confidential information, security is considered paramount. What do you understand about the requirements of the system?
technology architecture

  1. The need for Security is a classic example of a functional service level requirement and the checking account rule, an example of non-functional QoS requirement.

  2. The discussion about Security and the mandatory checking account both illustrate functional service level requirements.

  3. Neither Security nor the mandatory Checking Account is an example of any kind of requirements, theoretically speaking.

  4. Security is an Architectural non-functional requirement and the Mandatory Checking Account a functional design requirement.

  5. They are both examples of Business Use Cases.

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Correct Option: D

Which of the following are true about Active Replication?
technology architecture

  1. It is a fault-tolerance mechanism.

  2. It is achieved by taking cold back ups.

  3. Each replica attempts to process each request but extra calls may be intercepted via an interceptor.

  4. State changes are logged and periodically flushed to the replicas.

  5. State is synchronized only when the primary service fails.

  6. Each replica is identical to the main service.

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Correct Option: A,C,F

Which of the following are true about Vertical Scalability?
technology architecture

  1. Achieved by adding servers to the system

  2. Achieved by adding capacity (memory, CPU and so on)

  3. It is generally more expensive than Horizontal scaling

  4. Decreases manageability

  5. Requires few or no changes to the system architecture

  6. Has little or no impact on the reliability and availability of the

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Correct Option: B,E,F

In N-tier models, which of the following tier is best suited for implementing the view and controller components of an MVC application?
technology architecture

  1. Client Tier

  2. Web Tier

  3. MVC Tier

  4. Business Tier

  5. EIS Integration Tier

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Correct Option: B

Which of the following is an advantage of Ajax-based solutions?
technology architecture

  1. reduces browser-compatibility issues

  2. reduces page-refreshes, enhancing user experience

  3. increases security of browser-based applications

  4. Works even when Java Script is disabled.

Show answer
Correct Option: B
Explanation:

To answer this question, the user needs to be familiar with the concept of Ajax-based solutions.

Ajax-based solutions provide several advantages, such as:

A. Reduces browser-compatibility issues: This is true because Ajax uses JavaScript and the XMLHttpRequest object, which are supported across multiple browsers. This means that developers can write Ajax code once and it will work consistently across various browsers.

B. Reduces page-refreshes, enhancing user experience: This is true because Ajax allows developers to update parts of a web page without reloading the entire page. This means that the user can interact with the website without experiencing the lag of a page refresh.

C. Increases security of browser-based applications: This is false. Ajax-based solutions do not inherently increase the security of a web application. However, they can be used in conjunction with other security measures to improve overall security.

D. Works even when JavaScript is disabled: This is false. Ajax relies on JavaScript to function properly. If JavaScript is disabled, Ajax will not work.

Therefore, the correct answer is:

The Answer is: B. Reduces page-refreshes, enhancing user experience.

Which of the following is an advantage of browser-based solutions?
technology architecture

  1. Minimal installation conflicts and environment issues.

  2. No issues with cross-browser compatibility and support.

  3. Provides very good client security.

  4. Readily available standard development kits.

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Correct Option: A

JAX-WS provides handler facility. Which of the following is NOT a valid usage of these handlers?
technology architecture

  1. Logging protocol specific information

  2. Adding security information to the message

  3. Modifying protocol headers

  4. Logic to service the request

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Correct Option: D

Which of the following is NOT a valid scenario for implementing Java EE WebServices?

technology architecture

  1. .NET application must be able to call your service.

  2. Your client could be built in any language and run on any platform.

  3. Guaranteed message delivery

  4. Provide reusable & interoperable service across the industry.

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Correct Option: C