A direct-mapped cache is a type of set-associative cache where each block of data is mapped to a single set in the cache. It is the simplest form of a set-associative cache and is most efficient when accessing large blocks of data.
In a direct-mapped cache, all data from a single memory address is always placed in the same cache set. This means that it takes less time to find the data in the cache since it is always in the same place. The data is placed in the same place regardless of whether or not it is the same type of data as what is already in the cache.
When it comes to direct-mapped caches, they are the same as any other set-associative cache, except that they are limited to a single set. This means that there can only be one block of data stored in a single set, thus making it the most restrictive type of set-associative cache. It can be used for applications that require frequent access to large blocks of data. This is because there is no need to search for the data in multiple sets, saving time and resources.
You can learn more about direct-mapped cache at: brainly.com/question/29432991
#SPJ11
Which type of IP address is used within a private network (LAN)? (5 points)
Network
Private
Public IP
VPN
Explanation:
A private IP address is used within a private network to connect securely to other devices within that same network
which model of memory suggests that memory processes occur throughout a neural network simultaneously?
The Connectionist Model of Memory suggests that memory processes occur throughout a neural network simultaneously.
This model suggests that memories are stored in the form of connections between neurons in the brain. It postulates that memories are constructed by patterns of neural activity that are constantly updated, maintained, and retrieved through multiple pathways. This model also states that memories are dynamic and adaptive, and can be modulated by feedback from the environment.
In this model, memories are composed of interconnected networks of neurons that form pathways, rather than singular units of information. When a memory is recalled, it is retrieved through the neural pathways created by the pattern of interconnected neurons. The strength of these pathways can be altered by either increasing or decreasing the number of connections.
The Connectionist Model of Memory emphasizes the importance of neural networks in the formation and retrieval of memories, suggesting that the process is much more complex and dynamic than traditional theories would have us believe. This model offers an explanation as to how memories can be both encoded and retrieved in an efficient manner, allowing for more effective and accurate memories.
You can learn more about Connectionist Model at: brainly.com/question/13191508
#SPJ11
which networking technology allows students to connect to the internet from personal laptops at a university? group of answer choices high speed wireless dial up voip citizen-band radio transmission
A university's high speed wireless networking infrastructure enables students to use their personal laptops to access the internet.
What is meant by networking technology?To manage and transmit digital resources through a computer network, network technology uses data systems. Computer hardware and system software that maintains a network are used by many different businesses, necessitating the need for experts to administer them. The World Wide Web. The physical data links between computers and related equipment that make up the global network known as the Internet.Cost-effectiveness, storage effectiveness, adaptability, and data security are further advantages. It also makes it simple for employees to share information, enhancing productivity and efficiency.Networks adhere to protocols, which specify how messages are sent and received. The gadgets can communicate thanks to these protocols. Every device connected to a network has an IP address, which is a series of digits that uniquely identifies each device and enables other devices to identify it.To learn more about networking technology, refer to:
https://brainly.com/question/28342757
if a primary memory is of size 128mb and the supercell size is 4 bits, then what is the minimum number of bits in an address?
The address is 24 bits long and each supercell requires 4 bits to be addressed. Therefore, 24 bits are needed in order to address the entire primary memory.
The minimum number of bits in an address is determined by the size of the primary memory and the supercell size. In this example, the primary memory has a size of 128MB and the supercell size is 4 bits. Therefore, the minimum number of bits in an address would be 24 bits.
To explain, the primary memory size of 128MB can be converted to bytes. One megabyte is equal to 1,048,576 bytes. Therefore, 128MB is equal to 134,217,728 bytes. To calculate the minimum number of bits in an address, we must take the log base 2 of 134,217,728. This value is approximately 27.4, which is rounded up to 28.
Since the supercell size is 4 bits, the minimum number of bits in an address would be 28-4 = 24 bits.
You can learn more about primary memory at: brainly.com/question/28343101
#SPJ11
define the function findlargestnum() with no parameters that reads integers from input until a negative integer is read. the function returns the largest of the integers read. ex: if the input is 90 75 50 -55 -40, then the output is:
To define the function findlargestnum() with no parameters, the output will be 90.
Create the function findlargestnum() with no parameters.
Initialize a variable 'largest' to store the largest integer found.
Create a loop to read integers from the input until a negative integer is encountered.
Inside the loop, compare each integer with the 'largest' variable. If the integer is greater than the current value 'largest', update the 'largest' variable with that integer.
After encountering a negative integer, exit the loop and return the value of the 'largest' variable.
For example, if the input is 90 75 50 -55 -40, the function will iterate through the numbers, updating the 'largest' variable as needed.
When it encounters the first negative integer (-55), the loop will exit, and the function will return the current value of the 'largest' variable, which is 90. So, the output will be 90.
To know more about findlargestnum:https://brainly.com/question/27250114
#SPJ11
which mode specifier will erase the contents of a file if it already exists and create the file if it does not exist?
The mode specifier that will delete the contents of a file if it already exists and create the file if it doesn't is the "w" or "write"
When "w" mode is used, the file will be opened for writing. If the file already exists, all its old content will be removed and a new one will be created in its place. If the file does not exist, a new one will be created.
It is important to note that using "w" mode will delete all previous content of the file without warning. Therefore, if you want to add content to the file without erasing its previous content, you must use another mode specifier, such as the "a" (append)
In short, the mode specifier that will delete the contents of a file if it already exists and create the file if it doesn't is the "w" or "write" mode. However, it is important to be careful when using this mode, as all the previous content of the file will be deleted without warning.
Lear More About Create file
https://brainly.com/question/26125959
#SPJ11
to reduce costs, a company wants to slowly transition and eventually eliminate their dependency on their own hardware, datacenter, and it personnel to manage the data center. what would you initially recommend?
The first step to reducing costs for a company wanting to eliminate its dependency on its own hardware, data center, and IT personnel are to investigate cloud computing options.
Cloud computing provides a way for businesses to access their computing resources virtually, eliminating the need for their own hardware and data center. Additionally, cloud computing can also help reduce the need for IT personnel to manage the data center, as it is typically managed by the cloud provider.
To start, it is important to consider the applications that the company needs to run and then determine if these can be hosted in the cloud. Some applications are more suited to cloud computing than others and may require changes or adjustments in order to work optimally. Companies should also consider their security and compliance requirements when researching cloud options.
Once the company has evaluated the cloud options, it can start to transition its workloads to the cloud, allowing them to take advantage of the cost savings and benefits that come with it. It is important to monitor the performance of the applications after the transition to ensure that everything is running smoothly. Additionally, the company should continually evaluate its cloud options to ensure they are getting the best value for its money.
You can learn more about Cloud computing at: brainly.com/question/29737287
#SPJ11
you are working with a large worksheet. your row headings are in column a. which command(s) should be used to see the row headings and the distant information in columns x, y, and z?
To view the row headings and distant information in columns X, Y, and Z, use the Freeze Panes command in Microsoft Excel.
The freeze panes command allows you to lock specific rows and columns so that they are always visible, regardless of how far you scroll down or across the worksheet. The row headings should be in column A of the worksheet. The Freeze Panes command can be accessed by following the below steps:
Step 1: Select the cell located in the column that's just to the right of the last column of the area that you want to freeze. For example, if you want to freeze columns A through D, click on the cell in column E.
Step 2: Navigate to the "View" tab on the ribbon menu, then click on the "Freeze Panes" dropdown. From the dropdown menu, choose the appropriate option.
Step 3: The Freeze Panes command will be executed, and the rows and columns will be frozen according to the selection you made.
Learn more about freeze panes visit:
https://brainly.com/question/30371818
#SPJ11
how does configuration of wireless clients for wireless access in an enterprise environment differ from normal setup?
Configuring wireless clients for wireless access in an enterprise environment differs from normal configuration in several important ways.
First, configuring wireless clients in a business environment requires increased attention to security. Wireless clients connect to the network through a wireless connection, which means that the data transmission can be intercepted by an intruder.Second, in a business environment, it is common for wireless clients to be required to comply with certain company policies.Third, in a business environment, it is common for wireless clients to be required to connect to different wireless networks depending on their physical location in the business.In summary, the configuration of wireless clients in an enterprise environment differs from the normal configuration due to the increased attention to security, the need to comply with company policies, and the need to connect to multiple wireless networks in different locations. Of the company.
Lear More About Wireless access
https://brainly.com/question/27334545
#SPJ11
Digital audio can be created by recording sound on a smartphone.a. True
b. False
The given statement "Digital audio can be created by recording sound on a smartphone" is true because a smartphone has an in-built microphone that can record audio in a digital format.
Most smartphones come equipped with audio recording apps that allow users to record audio in different formats, such as WAV or MP3. The audio file can be easily transferred to a computer or other device for further editing or sharing. Additionally, many smartphones also allow users to connect external microphones for better audio quality. With the use of audio editing software, users can enhance the audio recordings further by adjusting the volume, adding effects, and removing background noise.
You can learn more about Digital audio at
https://brainly.com/question/30792993
#SPJ11
What is nlp
what is nlu
what is ai project cycle
Natural Language Processing (NLP) is a branch of artificial intelligence (AI) that deals with the interaction between computers and humans using natural language. Natural Language Understanding (NLU) is a subset of NLP that focuses on the comprehension and interpretation of human language.
The AI project cycle involves several stages, including problem identification, data collection, data preparation, algorithm development, model training, testing and evaluation, deployment, and maintenance
It involves the use of algorithms to analyze and understand human language and then generate an appropriate response.. NLU involves processing the text to extract relevant information and understand its meaning, context, and intent.
In the problem identification stage, the team identifies a problem that can be solved using AI. Data collection involves gathering relevant data to solve the problem, and data preparation involves cleaning, processing, and organizing the data. Algorithm development involves designing and developing algorithms to analyze and model the data, and model training involves training the AI model using the prepared data. In the testing and evaluation stage, the model is tested and evaluated to ensure its accuracy and effectiveness. In the deployment stage, the AI model is integrated into the business process, and maintenance involves continuous monitoring and improvement of the model's performance.
Find more about NLP,NLU and AI
brainly.com/question/17448109
#SPJ4
T/F: Information literacy can help us recognize the fact that information on the web cannot be taken for face value and must be evaluated critically.
The given statement " Information literacy can help us recognize the fact that information on the web cannot be taken for face value and must be evaluated critically." is true. Information literacy helps us recognize that information on the web cannot always be trusted, and it is important to evaluate it critically to ensure its accuracy and relevancy.
Information literacy refers to the ability to find, evaluate, and use information effectively. It involves critical thinking skills and the ability to evaluate information sources for their accuracy, reliability, and bias. Given the vast amount of information available on the web, it is important to recognize that not all of it is accurate or reliable.
Information literacy can help individuals recognize the need to critically evaluate information they find on the web before accepting it as true. By doing so, individuals can make informed decisions based on reliable information and avoid being misled by false or misleading information.
You can learn more about Information literacy at
https://brainly.com/question/28528603
#SPJ11
suppose we'd like to add an item to the end (push back) of two data structures: a linked list and a vector. which data structure is technically faster in the worst case?
Suppose we'd like to add an item to the end (push back) of two data structures: a linked list and a vector. In the worst-case scenario, which data structure is technically faster?
We should note that a vector is more effective than a linked list for most types of data in this case. In terms of big O notation, adding to a vector has a time complexity of O(1) at best, whereas adding to a linked list has a time complexity of O(n) at worst, which is significantly slower than adding to a vector.
Furthermore, memory access is a crucial component of a program's overall efficiency. A vector's contents are kept together in memory, and the CPU's cache can load the data faster. When data is kept in separate memory blocks, such as in a linked list, the CPU will be forced to fetch each memory block separately, lowering the program's efficiency. Therefore, in the worst-case scenario, a vector is technically faster than a linked list.
Learn more about data structures: https://brainly.com/question/13147796
#SPJ11
atc has approved your request for vfr-on-top while on an ifr clearance. therefore, you a. should set your transponder to code 1200. b. must fly appropriate vfr altitudes. c. must fly appropriate ifr altitudes.
Answer:
c
Explanation:
a virtual machine platform like virtualbox or vmware uses a central administration piece of software, known as the: core hypervisor hub adminhome
A virtual machine platform like Virtual Box or VMware uses a central administration piece of software known as the Core Hypervisor.
What is a Virtual machine?
A virtual machine is a computer system that emulates computer hardware and software, such as CPU, memory, storage, and network interfaces, resulting in a functioning virtual computer that can execute the operating system and applications as if it were a physical computer.
Virtual machine platform: Virtual machine platforms, such as VirtualBox, VMware, and Hyper-V, make virtualization possible. These platforms manage virtual machines by creating and running them on physical hardware.
Virtualization software can be thought of as two types:
Hosted Hypervisors: This type of hypervisor operates on top of a host operating system, for example, Virtual Box, VMware, and Microsoft Virtual PC, which require a pre-existing OS to install on.
Bare-Metal Hypervisors: This type of hypervisor installs directly onto the hardware without requiring an additional operating system. They can have additional levels of safety and efficiency, as they control all hardware directly.
Virtual Box: Oracle Virtual Box is a cross-platform virtualization program that allows you to run multiple guest operating systems (OS) on your host computer. Windows, Mac, Linux, and Solaris are all supported by Virtual Box.
VMware: VMware provides virtualization software that allows you to run several virtual machines on a single physical computer by sharing the physical resources of the host machine. VMware Workstation is a type of virtualization software that runs on the host operating system and allows you to create, manage, and run virtual machines.Core
Hypervisor: The hypervisor, also known as the virtual machine monitor (VMM), is the primary component of virtualization software. It is a piece of software that allows several virtual machines to share a single physical server's resources, such as CPU, memory, and storage.
Therefore, a virtual machine platform like Virtual Box or VMware uses a central administration piece of software known as the Core Hypervisor.
Learn more about Virtual machine here:
https://brainly.com/question/28322407
#SPJ11
when you create an instance of a generic class, what types can you pass as arguments for the class type parameters?'
When you create an instance of a generic class, you can pass any type as an argument for the class type parameters, as long as it satisfies any constraints specified in the generic class definition.
Generic classes in programming languages such as Java and C# allow you to define classes that can work with any data type, without specifying the actual data type until the class is instantiated.
The type parameters of the generic class can be any valid identifier, such as T, E, or K, and are specified in angle brackets after the class name.
For example, a generic class definition for a stack might look like this in Java:
public class Stack<T> {
// ...
}
You can pass any data type as an argument for the type parameter T, as long as it satisfies any constraints specified in the class definition. For example, you could create a stack of integers like this:
Stack<Integer> intStack = new Stack<Integer>();
Learn more about generic class here:
https://brainly.com/question/29981499
#SPJ11
Code HS phone signal unit 4.5
Students learn how to use Python's nested loops and conditional statements to programme functions that mimic the strength of cellular phone signals based on their proximity to cell towers in Code HS Phone Signal Unit 4.5.
What is the for loop codehs's usual starting value for the variable i?A for loop is a form of loop that iteratively repeats a block of code. There are a few preset options for the range() function: I starts out with a number of 0.
Can CodeHS spot plagiarism?Teachers can assume that exercises (especially more difficult exercises) completed in a small number of code runs or saves are frequently the result of borrowed or copied code, which makes the History tab a great tool to help in cheat detection.
To know more about Code HS visit:
https://brainly.com/question/31304256
#SPJ9
The operating system assigns the file its name, location, and size.a. True
b. False
The given statement "The operating system assigns the file its name, location, and size" is false because the user or application typically assigns a name to a file, and the operating system manages the file's location and size.
While the operating system plays a role in managing files, it is usually the user who assigns a name to a file when creating or saving it. Similarly, the user typically decides where to save the file, and the size is determined by the content that the user creates or saves. The operating system does help manage the file's location and size, but it is not solely responsible for assigning these attributes.
You can learn more about operating system at
https://brainly.com/question/22811693
#SPJ11
with email, the effort to capture the reader's attention begins question 7 options: after the introductory paragraph. in the postscript. with the first sentence of the email. with the from and subject information. with the topic sentence.
The effort to capture the reader's attention in an email begins with the first sentence of the email.
The subject line and sender information can also play a role in capturing the reader's attention, but the first sentence is crucial. A well-crafted topic sentence can also help to capture the reader's attention and provide a clear introduction to the content of the email.
However, the topic sentence alone may not be enough to capture the reader's attention if it is not engaging or relevant to the reader. In conclusion, when writing an email, it is important to put effort into the opening sentence, subject line, and sender information to capture the reader's attention and encourage them to continue reading. The topic sentence can also play a role in this effort, but it should be engaging and relevant to the reader to be effective.Learn more about email visit:
https://brainly.com/question/14380249
#SPJ11
A(n) _____ is an electronic document that can contain text, graphics, sound, video, and links.
A digital file is an electronic document that can contain text, graphics, sound, video, and links.
A digital file is a type of electronic document that can contain a variety of data types, including text, graphics, sound, video, and links. It is created and stored in a digital format that can be accessed using a computer or other digital device. Digital files are versatile and can be easily shared, edited, and transferred between devices and systems. They can be used for a variety of purposes, such as storing documents, images, and multimedia content.
Digital files have revolutionized the way information is created, stored, and accessed, making it possible to share and distribute information more efficiently and effectively than ever before.
You can learn more about digital file at
https://brainly.com/question/29996545
#SPJ11
write a program to count the number of vowels(a, e, i, o, and u) in an input string. the input may have upper case letters as well as lower case letters.
We print the value of count, which represents the number of vowels in the input string.
Here's a Python program that counts the number of vowels (a, e, i, o, and u) in a given input string:
string = input("Enter a string: ")
vowels = ['a', 'e', 'i', 'o', 'u']
count = 0
# convert the string to lowercase
string = string.lower()
# loop through each character in the string
for char in string:
# check if the character is a vowel
if char in vowels:
count += 1
print("Number of vowels:", count)
In this program, we first ask the user to enter a string using the input() function. We then create a list of vowels and initialize a variable count to zero.
Next, we convert the input string to lowercase using the lower() method. This is because we want to count both uppercase and lowercase vowels.
Then, we loop through each character in the string using a for loop. If the character is a vowel (i.e., it's in the list of vowels), we increment the count variable.
For more such questions on input
https://brainly.com/question/15683939
#SPJ11
assume a destination computer receives messages from several computers. how can it be sure that the fragments from one source is not mixed with the fragments from another source
To ensure that the fragments from one source are not mixed with the fragments from another source, the destination computer must use source port numbers and sequence numbers.
The TCP header includes source and destination port numbers and a sequence number to help ensure that fragments from one source are not mixed with fragments from another source. This is because each source will have a unique port number and sequence number.The TCP header includes source and destination port numbers and a sequence number to help ensure that fragments from one source are not mixed with fragments from another source. This is because each source will have a unique port number and sequence number.Therefore, the destination computer can use the sequence number in the header to ensure that the fragments are reassembled in the correct order.
Learn more about TCP: https://brainly.com/question/14280351
#SPJ11
Which of the following is/are correct generic method header?
A. public void min (T) array, Ta, Te) [] B. public static int min (T[] array, Ta, Te)[] C. public void min (T a, Te) [] D. public void min ( T [] array) []
Answer:
D. public void min ( T [] array) []
Which of the following is technology that imitates human abilities?a. AIb. MLc. RCd. XLS
AI (Artificial Intelligence) is technology that caters human abilities. Option A: AI is the correct answer.
AI is a field of computer science that focuses on developing technologies that can perform tasks that typically require human intelligence, such as reasoning, problem-solving, perception, and learning. AI algorithms are designed to analyze large amounts of data, identify patterns and relationships, and make predictions or decisions based on that analysis.
AI technology can be used in a wide range of applications, from speech recognition and natural language processing to autonomous vehicles and robotics. The goal of AI is to create machines that can perform tasks that typically require human intelligence, and in doing so, make our lives easier, safer, and more productive.
Therefore, option A: "AI" is the correct answer.
You can learn more about AI (Artificial Intelligence) at
https://brainly.com/question/20339012
#SPJ11
what tool is best to use when destroying data on an ssd? a. low-level format b. degausser c. zero-fill utility d. ata secure erase
The tool that is best to use when destroying data on an SSD is the d) ATA secure erase.
A solid-state drive (SSD) is a sort of data storage device that uses NAND-based flash memory to store and retrieve data. Unlike a hard disk drive (HDD), which utilizes magnetic storage, an SSD uses NAND-based flash memory to store data. This kind of memory is used in smartphones, flash drives, and SD cards.
As a result, SSDs have no moving components, making them more resilient and quicker than traditional HDDs. Secure Erase (SE) is an option in SSD firmware that, as the name suggests, securely erases data from SSDs. SE is a technology that is native to the ATA standard, and it works by overwriting the entire SSD with zeroes. Any data that was on the drive is lost once this process is completed. In comparison to other data wiping options, Secure Erase is quick and effective, and it may be executed without needing to install any software. The tool that is best to use when destroying data on an SSD is the d) ATA secure erase.Learn more about secure erase visit:
https://brainly.com/question/835613
#SPJ11
(100 POINTSSSS!) Using Python, solve this third problem.
Answer:
from enum import Enum
class Material(Enum):
GoldPlated = 1
SolidGold = 2
Copper = 3
def calculatePrice(material: Material, units):
match material:
case Material.GoldPlated:
return 50.0+units*7
case Material.SolidGold:
return 100.0+units*10
case _:
raise ValueError('Unknown material '+material.name)
try:
print("gold plated with 12 units: ${:.2f}".format(calculatePrice(Material.GoldPlated, 12)))
print("solid gold with 10 units: ${:.2f}".format(calculatePrice(Material.SolidGold, 10)))
print("solid gold with 5 units: ${:.2f}".format(calculatePrice(Material.SolidGold, 5)))
print("copper with 3 units: ${:.2f}".format(calculatePrice(Material.Copper, 3)))
except Exception as err:
print(err)
Explanation:
I used an enum and exception handling here to make it more interesting.
Simon has difficulty pressing and holding more than one key at a time, such as CTRL+ALT+DEL. What setting can he change to make this task easier?
Simon has difficulty pressing and holding more than one key at a time, such as CTRL+ALT+DEL. To make this task easier, he can change the setting called Filter Keys.
Filter Keys is a Windows accessibility feature that lets you slow down the keyboard or ignore repeated keystrokes to make typing easier. The filter keys feature ignores brief or repeated keystrokes, as well as keyboard bounce.
To turn on Filter Keys, follow the steps below:Click the Windows Start button and choose the "Settings" option.From the list of settings, choose "Ease of Access."Click the "Keyboard" button on the left-hand side of the window.Select the "Use Filter Keys" option to activate it.Under the "Options" button, make the changes as per your preference or leave the default settings.On the same window, you can activate the "Turn on Filter Keys" switch or hit the "Shift" button five times to enable the feature.By using this method, Simon will be able to use his keyboard effectively and complete the CTRL+ALT+DEL combination with ease.
You can learn more about Windows accessibility feature at
https://brainly.com/question/30721226
#SPJ11
you suspect that the gshant user account is locked. enter the command you would use in command prompt to display the account's status.
To show the status of the user account "gshant" in a Linux/Unix environment, the command to use at the command prompt is "passwd -S gshant."
This command provides information about the password status of the user account, including whether the account is locked, expired, or has a password assigned. The output of the command includes a string of characters that indicate the status of the account.
For example, if the account is locked, the output will show "L" in the second column of the output. If the account is not locked, the output will show "P" in the second column. The command can be useful for troubleshooting login issues or verifying the security of user accounts.
Learn more about gshant https://brainly.com/question/25808182
#SPJ11
which step in staging data often turns unstructured data into structured or semi-structured data? sort transform extract load
The step in staging data that often turns unstructured data into structured or semi-structured data is 'transform.'
Transform is a crucial step in the process of transforming unstructured data into structured data. This phase of the ETL process includes the removal of corrupted data, the identification of invalid values, the identification of missing data, the replacement of incorrect values with default values, and the conversion of incompatible data. It entails the conversion of data from its current state to a different state to meet the requirements of the target system. The goal of data transformation is to guarantee that the data is accurate, complete, and usable.
Data cleaning and transformation are essential in producing high-quality data that is consistent with the target system.In the data warehousing process, sorting, extracting, transforming, and loading (ETL) are critical steps. ETL is a comprehensive process of extracting data from source systems, transforming it into the desired form, and loading it into a target system. ETL is an essential component of data warehousing because it ensures that data is clean, accurate, and usable in the target system.
For such more questions on unstructured data:
brainly.com/question/28582205
#SPJ11
which of the following regarding a data flow diagram is correct? a process must have both an input and output data flow. a data store must be connected to at least one process. external entities should not be connected to one another. all of the above
All of the above is correct regarding data flow diagrams.
A data flow diagram (DFD) is a graphical representation of the "flow" of data through a system. It illustrates the process of data transformation from one form to another. A process must have both an input and output data flow. This means that any process in a data flow diagram must be connected to at least one input and one output data flow. This ensures that data is received, transformed, and passed on to the next step in the system.
A data store must be connected to at least one process. A data store is used to store data between processes and to accumulate and retain data. It must therefore be connected to a process that reads or writes data to it. External entities should not be connected to one another. External entities are used to represent the external sources or destinations of data, such as people or other systems. Therefore, they should not be connected to one another. In conclusion, all of the above is correct regarding data flow diagrams.
Know more about Data flow diagram here :
https://brainly.com/question/31066888
#SPJ11