UML Use Case diagram models the system's functionality and interactions with actors to capture all use cases, ensuring it meets end- needs, with scalability & security as critical technical requirements.
A UML Use Case diagram is a visual representation of the system's functionality and the interactions between the system and its actors (users or external systems). It captures all possible use cases of a system and is used to model the requirements of the system.
The Use Case diagram typically includes the use cases (represented by ovals) that represent the functionality of the system, actors (represented by stick figures) that interact with the system, and the relationships between the actors and the use cases.
To create a UML Use Case diagram, one needs to identify all possible use cases and actors of the system, and then model them using the UML notation, which includes different types of relationships such as includes, extends, and generalization.
When creating a UML Use Case diagram for a system, it is essential to capture all the required functionality of the system and ensure that all actors that interact with the system are identified. This ensures that the system is designed to meet the needs of the end-users.
Creating UML Use Case diagrams can be challenging, especially for complex systems. One possible challenge is choosing the right level of detail to include in the diagram. However, this can be overcome by breaking the system down into smaller, manageable subsystems and creating separate Use Case diagrams for each subsystem.
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One software license model allows software to be freely distributed, downloaded, and installed without paying a license fee, but often requires a fee for support, training, or added functionality.What is the name of this model?A. Open SourceB. DRMC. You risk losing your job.D. You expose your company
The software license model that allows software to get freely downloaded, freely distributed, downloaded, and installing doesn't require you to pay for a license fee, but often requires a fee for support, training, or added functionality is called the Open Source model.
What is software license?
Open Source refers to software that is available to the public with its source code, or underlying programming code, accessible and modifiable by users.
Open Source software is typically distributed under a license that allows users to download, install, and use the software without paying a license fee.
However, some Open Source licenses may require users to contribute any changes or modifications made to the software back to the Open Source community.
While the software itself is free, users may need to pay for additional support, training, or added functionality.
This can include things like technical support, documentation, training materials, and access to additional features or add-ons.
The Open Source model has become increasingly popular over the years, and many organizations, both large and small, use Open Source software to power their businesses.
Some examples of popular Open Source software include the Linux operating system, the Apache web server, and the MySQL database.
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true or false? regarding security controls, the four most common permission levels are poor, permissive, prudent, and paranoid.
The four most typical permission levels are poor, permissive, prudent, and paranoid. This is true in terms of security controls.
What is the intrusion detection system strategy?IAn intrusion detection system frequently use pattern correlation to find threats. An IDS can check network packets against a database of recognised cyberattack signatures using this technique.
Is there a set of IT management best practises called COSO?The Committee of Sponsoring Organizations (COSO) is a collection of IT management best practises. All controls are examined and measured during the secure phase of a security evaluation in order to record actions and changes on the system.
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Which Redundant Array of Independent Disks (RAID) combines mirroring and striping and is the better option for mission critical applications?
A. RAID-10
B. RAID-5
C. RAID-1
D. RAID-0
Answer:
RAID-10
Explanation:
In RAID-10, data is mirrored to two or more disks and striped across multiple disks, so that data can be read from multiple disks in parallel, providing improved performance. Additionally, because data is mirrored, the failure of one disk will not result in data loss, as the data can be reconstructed from the other disk(s).
For these reasons, RAID-10 is considered a better option for mission critical applications, as it provides both increased performance and data redundancy. In contrast, RAID-5 provides data redundancy through parity, but does not provide the same level of performance as RAID-10, and can be less reliable in the event of disk failure.
It's worth noting that RAID-10 is generally more expensive than other RAID levels due to the need for multiple disks, but the increased reliability and performance make it a good choice for mission critical applications where data loss and downtime can be devastating.
The Redundant Array of Independent Disks (RAID) that combines mirroring and striping and is the better option for mission critical applications is RAID-10.
RAID-10 combines the features of RAID-1 (mirroring) and RAID-0 (striping) to provide both data redundancy and increased performance. It is often used in mission critical applications because it can withstand multiple drive failures without losing data. RAID-5 also provides data redundancy and increased performance, but it is not as reliable as RAID-10 in the event of multiple drive failures. RAID-1 provides data redundancy but does not offer increased performance, and RAID-0 offers increased performance but does not provide data redundancy.
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This type of software can be described as end user software and is used to accomplish a variety of tasks. Select one:a. Communications b. Application c. Utility d. System
Application can be described as end user software and is used to accomplish a variety of tasks. Thus, option B is correct.
What is an Application?Applications, or simply apps, are pieces of software that group specific features into one easily accessible package. On both the Android and iOS app stores, there are millions of apps that provide services (or verticals).
The mobile economy is built on apps. Since the release of the iPhone in 2007 and the App Store in 2008, users have primarily accessed the smartphone revolution through apps. Applications have aided in the development of several multibillion dollar industries. For instance, mobile games now bring in over $30 billion annually, and apps from social media giants like Fakebook significantly boost their multi-billion dollar quarterly revenues.
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What statement describes the function of the Address Resolution Protocol?
a. ARP is used to discover the IP address of any host on a different network.
b. ARP is used to discover the IP address of any host on the local network.
c. ARP is used to discover the MAC address of any host on a different network.
d. ARP is used to discover the MAC address of any host on the local network
The purpose of the Address Resolution Protocol is described by the statement that it is used to determine the MAC address of any host on the local network.
A local area network (LAN) is a type of computer network that connects computers in a specific location, like a home, business building, school, lab, or university campus. As opposed to this, a wide area network (WAN) typically uses leased telecommunications circuits and also spans a greater geographic area. The two most popular technologies used for local area networks are Ethernet and Wi-Fi. ARCNET, Token Ring, and AppleTalk are examples of old network technology. In the late 1960s, there was a growing need for high-speed links between computer systems due to the growing demand for and use of computers in research labs and universities.
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Which step of business process management allows managers to create a continually improving process? a. Step 3: process executionb. Step 1: process design c. Step 5: process optimization d. Step 4 process monitoring
The fifth step of business process management, which is Continuous Improvement, allows managers to create a continually improving process. This step focuses on continuously identifying and implementing improvements to processes, so that they are more efficient and effective.
What is Implementing?
Implementing is the process of carrying out a plan, policy, program, or system. It involves putting a strategy, plan, or idea into action, and ensuring that all necessary steps are taken to successfully complete the implementation process. It may involve developing processes, procedures, and tools to support the implementation, as well as establishing criteria for measuring success. Implementing can be a complex and lengthy process, but it is necessary to ensure that all aspects of the plan are carried out properly.
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what allows for the execution of code in the ethereum blockchain, while enhancing the basic value transfer capability of the bitcoin blockchain?
Together with getter and setter functions, Solidity also has data, methods or functions with modifiers.
As it was developed as a substitute for fiat money, bitcoin aims to serve as both a medium of exchange and a store of wealth. With the help of a global virtual machine, Ethereum was designed as a platform to support immutable, programmatic contracts and applications. Decentralization is made possible by blockchain technology by allowing members of a dispersed network to participate. No single point of failure exists, and a single user cannot alter the transaction record. The SHA-256 hash algorithm powers Bitcoin. The Keccak-256 hash algorithm is used by Ethereum. The Bitcoin network uses Proof-of-Work (PoW) as its consensus algorithm. Ethereum uses the Proof-of-Stake consensus algorithm.
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dividing a file into packets and routing them through the internet to their destination is a function of?
This is a function of packet switching, which is the process of breaking up data into small chunks, called packets, and sending them across a network to their destination.
What is data?
Data is information that is organized and stored in a structured manner. It is typically used by businesses and organizations to help them make decisions. Data can be qualitative or quantitative, structured or unstructured, and can come from a variety of sources. It can be used to measure performance, explore trends, and identify patterns and correlations. Data can be collected from surveys, experiments, observations, and analysis of existing data. In the modern era, data is increasingly generated from electronic sources such as websites, social media, and databases.
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if there are two or more attributes being underlined in relational logical schema, these attributes together is called
A composite key is a combination of two or more attributes that uniquely identifies a record in a table. Each attribute that makes up the composite key can be used individually to identify a record, but when they are used together they form a unique identifier.
What is Identifier?
An identifier is a name given to a variable, function, class, module, or other object in a program. It is used to refer to that object from elsewhere in the same program. Identifiers are often used to name variables that store values in memory, such as numbers, text, or more complex data structures. Identifiers must follow a specific syntax and naming conventions, depending on the programming language in use. This helps ensure that the code is easy to read and understand.
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help me this is due in 1 hour
A flowchart for a smart home system that can tell the temperature of a room and also the amount of sound in the room cannot be given on short notice, but a pseudocode can be provided for this.
The Flowchart describedStart
Check if the temperature sensor is working.
If temperature sensor is working, read temperature.
If temperature is above a set threshold, turn on air conditioner. If below a set threshold, turn on heater. If within the range, do nothing.
Check if the sound sensor is working.
If sound sensor is working, read sound level.
If sound level is above a set threshold, turn on noise-cancellation system or alert the user.
If both temperature and sound sensors are working, display the readings on the user interface.
End.
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for certain services like amazon elastic compute cloud (amazon ec2) and amazon relational database service (amazon rds), you can invest in reserved capacity. what options are available for reserved instances?
Answer:
Standard Reserved InstancesConvertible Reserved InstancesScheduled Reserved InstancesEC2 Instance Savings PlansRDS Reserved CapacityExplanation:
For Amazon EC2 and Amazon RDS, you can invest in reserved capacity to reduce your costs compared to on-demand pricing. The options available for reserved instances are:
Standard Reserved Instances: This is the most cost-effective option for steady-state workloads that run continuously for an entire year or more.Convertible Reserved Instances: This option allows you to change the attributes of your reservation, such as instance type, availability zone, or network platform.Scheduled Reserved Instances: This option allows you to launch instances during specific, recurring time windows.EC2 Instance Savings Plans: This option provides a flexible and cost-effective way to save on Amazon EC2 costs, without making upfront payments or long-term commitments.RDS Reserved Capacity: This option provides a discounted rate for Amazon RDS usage, and you can purchase reserved capacity to reduce your costs.which syslog level indicates an emergency that could severely impact the system and cause it to become unusable?
Answer: Level 0
Explanation:
Why adjacent JSX elements must be wrapped in enclosing tag?
Adjacent JSX elements must be wrapped in an enclosing tag because JSX is an XML-like syntax, and therefore requires that all elements be properly nested inside of a parent element.
What is XML?
XML (eXtensible Markup Language) is a markup language used to store and transport data. It is a hierarchical language that is both human-readable and machine-readable. XML is designed to be self-descriptive, allowing for data to be shared between different systems without prior knowledge of the data structure. XML can be used to create documents containing text, images, audio, video, and other types of data. XML documents are typically used to transport data between web servers and clients, to store data in databases, and to create user interfaces.
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sort the following list of video extensions using selection sort: mpg, mp4, mov, mkv, m4v. what is the order of the elements after the second swap?
After the second swap in a selection sort of the list of video extensions "mpg, mp4, mov, mkv, m4v", the order of the element is "m4v, mkv, mov, mp4, mpg".
Here are the steps to sort the list of video extensions using selection sort:
Starting at the first element, compare it with each element in the list to find the minimum value.Swap the minimum value with the first element.To sort the full list, repeat steps 1 and 2 for the final unsorted section of the list.Using this algorithm, we can sort the list of video extensions in the following way:
mpg, mp4, mov, mkv, m4v (original list)m4v, mp4, mov, mkv, mpg (after the first swap)m4v, mkv, mov, mp4, mpg (after the second swap)Therefore, the order of the elements after the second swap is m4v, mkv, mov, mp4, mpg.
In a selection sort, the algorithm repeatedly finds the smallest remaining element in the unsorted portion of the list and swaps it with the leftmost unsorted element, until the entire list is sorted in ascending order.
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cpu-on-demand (cpud) offers real-time high-performance computing services. cpud owns 1 supercomputer that can be accessed through the internet. their customers send jobs that arrive, on average, every 3 hours. the standard deviation of the interarrival times is 7 hours. executing each job takes, on average, 2 hours on the supercomputer and the standard deviation of the processing time is 5.0 hours.on average, how long will it take to complete a job (from the time it is submitted by the customer until the time it is completed)?
Data is the source of ground-breaking scientific discoveries, game-changing products, and the global betterment of billions of people's quality of life.
HPC is the foundation for advancements in science, business, and society. As a result of technologies like the Internet of Things (IoT), artificial intelligence (AI), and 3-D imaging, the number and volume of data that organizations must work with is quickly increasing. For a variety of jobs, such as streaming a live sporting event, tracking the development of a storm, testing new products, and analyzing market trends, the ability to analyze data in real time is crucial. To handle, store, and analyze enormous volumes of data and stay one step ahead of the competition, organizations need blazing-fast, very reliable IT infrastructure..
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how many bits are dedicated to the ipv6 os generated mac address? in the space provided, enter only the numeric value.
No bits are dedicated to the IPv6 OS generated MAC address. Unlike IPv4, which uses a 32-bit address space, IPv6 uses a 128-bit address space, which provides an extremely large number of unique addresses for devices.
Since MAC addresses are used at the link layer of the networking stack, they are not relevant to the addressing scheme used by the Internet Protocol (IP) at the network layer. However, devices may use a modified version of their MAC address as part of their IPv6 address, for example by inserting "FFFE" in the middle of the MAC address. This technique is used to generate a unique interface identifier for the device. No bits are dedicated to the IPv6 OS generated MAC address. Unlike IPv4, which uses a 32-bit address space, IPv6 uses a 128-bit address space, which provides an extremely large number of unique addresses for devices.
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