Application and software IV

Which one of the following is an application architecture model where the presentation layer, business logic, and data storage are all contained within the client's machine?

• Two teir

• One Teir

• Three Teir

• Nteir

Answer explanation

The one-tier architecture model involves all parts - user interface, data processing (business logic), and data storage, being managed within the client's machine. In a two-tier architecture, the application is divided into two parts, typically a client and a server, hence it doesn't fall into one tier model where all components are in one place. The three-tier model separates the application into three parts - the presentation layer, the application layer (business logic), and the data layer (data storage), usually hosted on different machines. The n-tier model separates an application's components into multiple tiers, providing great flexibility but unlike the one-tier model, it does not encapsulate all functionalities within the client's machine.

Andrew, a junior technician at Dion Training, has the task of optimizing CPU usage. How can a task scheduler utility assist him?

• Automatically cleaning up Systems RAM.

• Boosting the overall CPU performance

• Automating tasks during off-peak hours

• Overseeing power management for the systems

Answer explanation

Explanation

By allowing Andrew to schedule heavy-duty tasks to run during off-peak hours, task scheduling can help reduce the load during business hours, optimizing CPU usage. While task scheduler can be used to automate tasks that might indirectly aid in power management, it is not directly responsible for overseeing this functionality. Although a beneficial process for system operation, cleaning up system’s RAM is not directly linked with optimizing CPU usage and the task scheduler doesn't automatically handle these activities. An indirect relationship could be drawn, but this would not accurately capture the main purpose of a task scheduler. While the task scheduler can improve the efficiency of CPU usage, it unfortunately doesn't have the ability to enhance the overall performance or boost the speed of the CPU.

When it comes to software licensing, which license type allows for unlimited users as long as the total number of users does not exceed the agreed limit at once?

• Non- transferrable license

• Current license

• Group use/ site- license

• Single-use license

Answer explanation

Concurrent licenses are designed to allow an agreed maximum number of users to use the software simultaneously. They are not based on the total number of users, rather on the maximum number of simultaneous users. A site license allows the software to be used by all users within one organization or physical location. It does not limit the number of simultaneous users but has geographical or organizational restrictions. A non-transferable license cannot be given to another user or installed on multiple devices by the same user. It cannot allow for multiple simultaneous usage. A single-use license is restricted to one user or computer. It does not provide for multiple users simultaneously.

Which installation practice helps mitigates compatibility concerns?

• Reading Instructions

• Advanced Options

• Reading Agreement

• Installing on Default settings

Answer explanation

Reading software installation instructions allows users to understand system requirements and check for possible compatibility issues, ensuring the software runs smoothly on their system. Advanced options during installation often address configuration and feature preferences, but these do not directly address system compatibility concerns. While installing on default settings can facilitate a smooth installation process, it does not specifically mitigate compatibility issues. Compatibility is more about whether the software can operate on the system, which is better ensured by reading the software's instructions and system requirements prior to installation. Reading agreements is crucial for understanding rights and obligations of using the software, but doesn't directly address compatibility concerns.

Ella, a business owner, prefers a software where she pays an initial fee but doesn't want any additional costs for software use. Which licensing model is suitable for her?

• Subscription Model

• Open Source License

• Concurrent License

• One-time purchase model

Answer explanation

With this a one-time purchase model, Ella would only incur a one-time initial purchase cost and wouldn't have to worry about additional costs. While it accommodates multiple users, concurrent license are not specifically associated with initial only cost, as Ella desires. Although it’s free, it may not provide the comprehensive features or support a commercial software would provide. Subscription models require recurring payments over time for the software usage, which Ella does not want.

Which of the following describes independent units of software that are responsible for one well-defined task within an operating system and run in the background, often without direct user interaction?

• Drivers

• Utilities

• Processes

• Services

Answer explanation

Services are independent units of software that perform specific tasks autonomously, usually without direct intervention from the user, in the background on an operating system. Utilities include a collection of tools used to manage, maintain, and control the operation of a computer system. They aren't defined tasks running in the background of an operating system. Processes correspond to a running program and its allocated resources. A process does not necessarily need to run in the background without user interaction. Drivers are pieces of software that facilitate communication between an operating system and its hardware components. They don't define tasks or run without direct user interaction.

Jake, a network manager at Dion Training, wants to set up an application for his team that doesn't require internet access but can share data and resources within the team. Which application delivery method should he choose?

• Local network hosted

• Cloud hosted

• Locally installed

• Hybrid

Answer explanation

A local network hosted application is the correct choice as it allows the sharing of data and resources among connected devices, without requiring internet access. A locally installed application can work without the internet, but it doesn’t naturally facilitate shared access to data and resources amongst the team. Although a cloud-hosted application can share data and resources, it requires internet access, which makes it an unsuitable choice for Jake's requirement. This option involves a combination of both local network and cloud-based solutions. However, it still requires internet access for the cloud-based segments, making it inappropriate for this scenario.

In a software installation process, why might consulting advanced options be a recommended practice?

• It automatically agrees to terms and conditions

• It permits single-user installation

• it allows customization of installation

• It provides a product key

Answer explanation

Explanation

Examining advanced options during software installation offers you a chance to customize the installation towards your own requirements, which differentiates it from other methods. Advanced options in software installation do not handle acceptance of terms and conditions. This is usually a distinct step of the installation process. Providing product keys is not typically part of advanced installation options in software installation. It is usually a separate part of the process. While single-user installations are a licensing concept, they are not directly tied to advanced options during software installation.

Which of the following architectural models BEST utilizes multiple layers, such as presentation, application, and data layers, to divide responsibilities and allow for better flexibility and maintainability in a system?

• n-teir

• one-teir

• Three Teir

• Two their

Answer explanation

Explanation

The n-tier model separates an application's components into multiple tiers, providing greater flexibility and maintainability since changes to one layer don't necessarily impact the others. While the three-tier model does separate items into different layers, the n-tier model is more flexible and maintainable due to the potential for a larger number of layers. The one-tier model does not provide the same level of flexibility and maintainability as the n-tier, as all components of the application - user interface, data processing, and data storage, are housed on one tier within the client's machine. While the two-tier model does separate components into layers, it is not as flexible and maintainable compared to the n-tier model because it only has two layers.

George, a business analyst at Dion Training, needs to collect, monitor and interpret complex business data and decides to use Oracle's Database software. This is an example of:

• Business-specific applications

• presentation softare

• instant messaging software

• database software

Answer explanation

Explanation

Database software allows users to collect, monitor, and interpret complex data. It's used to manage and organize data in a structured way, serving the analyst's needs appropriately. Instant messaging software is mainly used for real-time communication and it lacks data management functionalities. While presentation software is vital for displaying information in an appealing manner, it does not possess sophisticated data management or analytical capabilities. Business-specific applications may serve specific, specialized business needs, and do not necessarily handle complex data management and interpretation.