high- pass filters allow high frequency ac to pass easily, but not dc.
High-pass filters allow high-frequency AC to pass easily, but not DC.A high-pass filter is a type of electronic filter that allows high-frequency signals to pass through while attenuating or blocking low-frequency signals.
The cut-off frequency of a high-pass filter determines the point at which the filter starts to attenuate low-frequency signals.In a high-pass filter, capacitors are used to block DC signals, while resistors are used to attenuate low-frequency AC signals. As a result, high-frequency AC signals are able to pass through the filter with minimal attenuation.High-pass filters are commonly used in audio systems to remove low-frequency noise or unwanted bass frequencies. They are also used in electronic circuits to block DC signals from entering sensitive components or to allow high-frequency signals to pass through to a specific part of the circuit.
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what is required of the application development process to ensure the application is compatible with all web browser platforms and mobile devices?
a. The INC instruction takes a maximum of ___ operands. b. Finish the instruction to decrement 1 from a 16-bit val variable using NASM: DEC ___. c. When using GAS, the first operand is the ___ operand. d. When using MASM, the first operand is the ___ operand.
a. The INC instruction takes a maximum of 1 operands. b. Finish the instruction to decrement 1 from a 16-bit val variable using NASM: DEC word [val] c. When using GAS, the first operand is the destination operand. d. When using MASM, the first operand is the destination operand.
The INC instruction is used to increment the value of an operand by 1. It takes a maximum of one operand, which can be a register or a memory location. To decrement a 16-bit val variable by 1 using NASM, you would write the instruction as "DEC word [val]." This decrements the 16-bit value stored at the memory location val by 1.
When using the GAS assembler, the first operand is generally the destination operand. Similarly, when using the MASM assembler, the first operand is also typically the destination operand. These conventions help maintain consistency and readability in assembly code.
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dropbox, microsoft one drive, and icloud are all examples of ________.
Dropbox, Microsoft OneDrive, and iCloud are all examples of cloud storage services. Cloud storage refers to a method of storing data remotely on servers, which are accessible through the internet. These services allow users to store and access files, documents, photos, and other data on a remote server, eliminating the need for physical storage devices such as hard drives or USB drives.
Cloud storage services have become increasingly popular in recent years due to their convenience, flexibility, and accessibility. They allow users to easily store and access their files from anywhere, using any device with an internet connection. Additionally, cloud storage services offer features such as file sharing, collaboration, and automatic backups, which can be very useful for both individuals and businesses.
Dropbox, Microsoft OneDrive, and iCloud are among the most popular cloud storage services available today. Each service has its own unique features and benefits, and users can choose the service that best fits their needs and preferences. Overall, cloud storage services are a great option for anyone who wants to store and access their data easily and securely, without the hassle of physical storage devices.
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____ refers to the ability of an operating system to work with more than one program at one time.
The term you are referring to is "multitasking". Multitasking is a fundamental feature of modern operating systems, allowing multiple programs to run simultaneously on a single computer.
Without multitasking, users would have to manually switch between different programs, which would be extremely inefficient and time-consuming.
Multitasking is made possible by the operating system's ability to allocate system resources (such as CPU time, memory, and disk space) to different programs as needed. The operating system keeps track of all running programs and allocates resources to them in a way that maximizes performance and minimizes conflicts.
There are two main types of multitasking: preemptive and cooperative. Preemptive multitasking is the most common type and is used by most modern operating systems. With preemptive multitasking, the operating system assigns a priority level to each program and decides which program to run based on that priority. Cooperative multitasking, on the other hand, relies on the programs themselves to voluntarily give up control of the CPU to other programs.
Overall, multitasking is a critical feature of modern operating systems that enables users to run multiple programs simultaneously, improving productivity and efficiency.
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what happens when an object's reference count is zero?group of answer choicesthe object is no longer referenced.the object is ready for memory allocation.the object is being referenced.the object will be deallocated from memory immediately.
When an object's reference count is zero, it means the object is no longer referenced and the object will be deallocated from memory, making it ready for memory allocation for other purposes.
When an object's reference count is zero, it means that there are no more references to it in the program. This is an indication that the object is no longer needed and can be removed from memory.
The object will be deallocated from memory immediately. This process is known as garbage collection, where the system automatically detects and removes objects that are no longer needed in the program. So, the correct answer would be: "The object will be deallocated from memory immediately."Thus, when an object's reference count is zero, it means the object is no longer referenced and the object will be deallocated from memory, making it ready for memory allocation for other purposes.Know more about the garbage collection,
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some of the goals when performing the eer diagram-to-relational schema mapping algorithm include: group of answer choices increasing the number of null values when possible to reduce the number of relations ensuring that there are enough attributes to store all of the information all of the above none of the above
The goals when performing the EER diagram-to-relational schema mapping algorithm include all of the above options mentioned in the question.
Some of the goals when performing the EER diagram-to-relational schema mapping algorithm include ensuring that there are enough attributes to store all of the information.
The other choices, such as increasing the number of null values or reducing the number of relations, are not accurate goals for this process. Therefore, the correct answer is "ensuring that there are enough attributes to store all of the information."This means that the algorithm aims to increase the group of answer choices, including increasing the number of null values when possible to reduce the number of relations. Additionally, the algorithm ensures that there are enough attributes to store all of the information accurately. Overall, the algorithm aims to create a relational schema that accurately reflects the information represented in the EER diagram.Know more about the schema mapping
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Describe the sequence of operations that might go on inside the computer during the execution phase of the following machine language instruction. Use the notation shown in Section 5.3. Assume that the IR is now divided into four separate parts (instead of three) that contain the op code, and the first, second, and third address fields.
Assuming we have a basic computer architecture, the sequence of operations that might go on inside the computer during the execution phase of a machine language instruction can be described as follows:
Fetching the instruction: The instruction is fetched from memory into the instruction register (IR). The op code is stored in the first part of the IR, and the first, second, and third address fields are stored in the remaining parts of the IR.Decoding the instruction: The control unit decodes the op code to determine the type of operation that needs to be performed. This involves looking up the op code in a table that maps each op code to a specific operation or sequence of operations.Fetching the operands: Depending on the type of operation, the control unit fetches the operands from memory and stores them in registers or temporary storage locations. For example, if the instruction involves adding two numbers, the control unit would fetch the two numbers from memory and store them in registers.
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using ________ enables you to stretch or shrink the width, height, or both of printed output.
Answer: scale to fit
Explanation:
Using scaling enables you to stretch or shrink the width, height, or both of printed output.Scaling is a feature available in many printing applications that allows you to adjust the size of your printed output. This is useful when you need to fit a document onto a specific size of paper or when you want to change the size of an image or graphic.
When you scale a document or image for printing, you are adjusting its size proportionally. This means that the width and height are adjusted together so that the aspect ratio of the image is maintained. For example, if you scale an image to 50% of its original size, both the width and height will be reduced by 50%.Scaling can be done either manually or automatically, depending on the software you are using. In many cases, you can set a specific scale factor or choose from a list of predefined scaling options. Some applications also allow you to preview the scaled output before printing to ensure that it will fit on the page properly.
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FILL IN THE BLANK. A ____ is a type of _____.A. URL, HTMLB. URI, URLC. URL, URID. HTML, web page
A URL is a type of URI. So, the option is C. URL, URI.
A URI is a string of characters that identifies a name or a resource on the Internet. It can be used to specify the location of a resource, such as a web page, an image, a file, or a service. A URI consists of two main parts: the scheme and the resource name. The scheme indicates the protocol or application used to access the resource, such as HTTP, FTP, or mailto.
The resource name is a string of characters that identifies the specific resource being accessed. A URL is a type of URI that specifies the location of a web resource, such as a web page, an image, or a file. It includes the scheme (e.g. http or https), the hostname or IP address of the server, the path to the resource on the server, and any query parameters or fragments that are used to further specify the resource.
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cisc machines rely on to decode instructions.a.bytecodeb.macrocodec.microcoded.nanocode
CISC (Complex Instruction Set Computer) machines make use of microcode in order to decode instructions.
What is a microcode?Utilized as a low-level control code, microcode is mainly stored within firmware or ROM in the CPU of a computer. This mechanism provides a set of commands that are triggered for decoding complex instructions into more elementary microinstructions which will be familiar to the CPU's hardware components.
In CISC architectures, instructions of the processor's instruction set tend to be intricate and extensive, containing multiple operations in one single command. By relying on microcode stored in the CPU, these tricky instructions are eventually converted into microinstructions which precisely exemplify the various tasks to be carried out by the apparatus' hardware.
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complete question is attached
a character variable's value is stored in memory as .a.a graphical symbolb.a stringc.a floating-point valued.an integer value
A character variable's value is stored in memory as b) a string. This means that the variable contains a sequence of characters, such as letters or symbols, that are stored in a consecutive block of memory.
A string is a data type in programming that is used to represent text. Each character in the string is assigned a numerical value, which is then stored in memory as a sequence of binary digits. The computer can then retrieve and manipulate the characters as needed. In contrast, a graphical symbol would typically be stored as an image file, while floating-point and integer values would be stored as numerical data in memory.
In conclusion, a character variable's value is stored in memory as a string of characters, which allows the computer to easily manipulate and work with text-based data.
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the dimension of ________ in information quality describes whether data is available when needed.
The dimension of timeliness in information quality describes whether data is available when needed.
Timeliness is a critical aspect of information quality, as it determines how quickly data can be accessed and utilized for decision-making purposes. In today's fast-paced business environment, decision-makers need access to accurate and relevant data in real-time to make informed decisions. Timeliness ensures that data is available when it is needed and that it is current and up-to-date. Timeliness also plays a vital role in the accuracy and completeness of data. Outdated or irrelevant data can lead to flawed decision-making, which can have significant consequences for businesses. Therefore, it is essential to prioritize the dimension of timeliness when evaluating information quality to ensure that data is available when it is needed and that it meets the required standards of accuracy and completeness.
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which of the following uses values or algorithms to provide data-backed decision options? a. technology disruption b. copyright c. big data d. predictive analytics e. blockchain
Predictive analytics uses values and algorithms to analyze data and provide well-informed, data-backed decision.
Predictive analytics is the process of using statistical techniques, algorithms, and data mining to analyze historical data in order to predict future outcomes. By identifying patterns and trends in the data, predictive analytics helps businesses make data-backed decisions, improve efficiency, and minimize risks. This method stands out among the other options as it specifically focuses on providing data-backed decision options based on algorithms and values.
To sum up, predictive analytics uses values and algorithms to analyze data and provide well-informed, data-backed decision options for various industries and businesses.
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john is now responsible for system security at a small bookkeeping firm. he wants to ensure that he implements good fundamental security. what is the most basic rule of computer security?
The most basic rule of computer security that John should implement at the small bookkeeping firm is the principle of "least privilege."
The most basic rule of computer security is to always keep your system and software up-to-date with the latest security patches and updates.
This means granting users and applications the minimum level of access necessary to perform their tasks, which helps reduce potential risks and unauthorized access to sensitive information. This is a critical step in preventing potential vulnerabilities and exploits from being used against your system. Additionally, it's important to have strong and unique passwords for all user accounts and to regularly change them. It's also recommended to have anti-virus and anti-malware software installed and kept updated. Finally, it's important to educate all users on the basics of safe computing practices, such as not clicking on suspicious links or downloading attachments from unknown sources. While there are many other important aspects to computer security, these basic steps can go a long way in protecting your system and data from potential threats.Know more about the anti-malware software
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security keys are more ideal than otp generators because they're resistant to _______ attacks.
Security keys are more ideal than OTP (one-time password) generators because they are resistant to phishing attacks. Phishing attacks are fraudulent attempts to obtain sensitive information, such as usernames, passwords, and credit card details, by disguising as a trustworthy entity in electronic communication.
While OTP generators, such as those that use SMS or authenticator apps, add an extra layer of security through two-factor authentication (2FA), they can still be vulnerable to attacks. For example, hackers can intercept SMS messages, gain access to authenticator apps through malware, or use social engineering techniques to trick users into revealing their OTPs.
On the other hand, security keys are physical devices that require users to insert or tap them onto their devices during the authentication process. These keys utilize the FIDO (Fast Identity Online) Universal 2nd Factor (U2F) standard, which ensures strong public key cryptography to protect user credentials.
This method not only eliminates the need to manually enter OTPs, but also makes it extremely difficult for attackers to gain access, even if they manage to trick users into revealing their credentials. As a result, security keys significantly reduce the risk of phishing attacks and provide a more robust authentication method compared to OTP generators.
In conclusion, security keys offer a superior level of security compared to OTP generators, as they are more resistant to phishing attacks and ensure better protection for users' sensitive information.
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a(n) ________ is a location where internet users can gain wireless access to the internet.
The correct answer is A hotspot is a location where internet users can gain wireless access to the internet.
A hotspot is a physical location, such as a coffee shop, library, or airport, where Wi-Fi access is provided to users who have a wireless-enabled device, such as a laptop or smartphone. Hotspots are often found in public places where people may need internet access, and they can be free or require a fee to use. Some hotspots may also have restrictions on the amount of data that can be used or the length of time that the user can access the internet. The popularity of hotspots has increased in recent years, as more people have become reliant on mobile devices and the internet for both personal and professional use. As a result, hotspots have become an important part of the internet infrastructure, providing convenient access to the internet for millions of users around the world.
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FILL IN THE BLANK. amazon bought the video game streaming service twitch for almost $1 billion because ______.
Amazon bought the video game streaming service Twitch for almost $1 billion because of the potential revenue and growth opportunities that the platform offered.
Twitch, which was founded in 2011, quickly became a popular platform for gamers to share their gameplay and interact with fans. The platform also offered opportunities for advertisers and sponsors to reach a highly engaged audience. Amazon recognized the potential for Twitch to become a major player in the streaming industry, as well as a valuable asset to their existing services.
With Amazon's resources and infrastructure, Twitch could further expand its reach and improve its user experience. Additionally, Amazon saw the opportunity to integrate Twitch with their own services such as Prime Video and Prime Gaming, offering more value to their customers. Furthermore, Amazon was also interested in Twitch's potential as a platform for life-streaming other events beyond gaming, such as concerts, sports, and news.
The acquisition allowed Amazon to diversify its offerings and increase its presence in the streaming market. Overall, Amazon's decision to acquire Twitch was based on the platform's potential for revenue growth, expansion, and integration with existing services.
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TRUE/FALSE. a version of the vi text editor called "vi improved," or vim is used for most linux distributions.
TRUE. A version of the vi text editor called "vi improved," or vim, is used for most Linux distributions. Vim is an enhanced version of the original vi editor, which was developed for the Unix operating system in the 1970s.
Vim is free and open-source software and is available for a variety of operating systems, including Linux, macOS, and Windows. Vim offers several features that make it more user-friendly than the original vi editor, including syntax highlighting, automatic indentation, and support for multiple windows and tabs. Vim is also highly customizable, allowing users to configure it to suit their specific needs and preferences. Many Linux distributions come pre-installed with vim, and it is often the default text editor for command-line tasks. Overall, vim is a powerful and versatile text editor that is widely used by Linux users and developers.
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this is a variable whose value is never changed, but it isn't declared with the final key word. What is it called?
Answer:
Constants are variables where the value can't be changed when the variable is declared. They use the const or readonly keyword. Constants differ from read-only fields in only one way. Read-only fields can be assigned a value only one time, and that value never changes.
It's called a constant or immutable variable, meaning its value remains the same throughout the program execution without the final keyword.
In programming, a variable is a container that stores a value that can be changed during program execution.
However, there are situations where a variable's value needs to remain the same throughout the program, and for that purpose, we use a constant or immutable variable.
A constant is a type of variable whose value cannot be changed once it has been set.
It is declared using the "final" keyword in many programming languages.
However, some languages such as Python and JavaScript do not have a specific keyword for constants.
Instead, programmers typically use uppercase letters to indicate that a variable is intended to be constant, even though its value can technically be changed.
Therefore, a variable whose value remains unchanged throughout the program execution but is not declared with the final keyword is still considered a constant or immutable variable.
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____ records are those on the many side of a relationship that do not have a match on the one side.
a. indexed b. split
c. unlicensed d. orphan
Orphan records are those on the many side of a relationship that do not have a match on the one side.
In other words, they are records that exist in a database table but do not have a corresponding record in another related table. Orphan records can cause issues with data integrity and can lead to errors when querying or updating data. To avoid orphan records, it is important to properly define and enforce relationships between tables in a database, as well as regularly clean and maintain the data to ensure consistency.
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which of the following is the term for a key that is composed of an arbitrary or random value?
A. Surrogate key
B. Composite key
The main answer to your question is A. Surrogate key. A surrogate key is a term for a key that is composed of an arbitrary or random value, typically used in database systems. It is an artificial or unique identifier for each row in a table, not derived from application data.
A surrogate key is a key that is composed of an arbitrary or random value and is used to uniquely identify a record in a database. On the other hand, a composite key is a key that is composed of two or more columns and is used to uniquely identify a record in a database. Surrogate keys are often used in situations where a natural key, such as a person's name or social security number, is not available or not reliable enough for use as a primary key. Surrogate keys are typically generated by the database management system and have no meaning outside of the context of the database.
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Machine precision (eps = 2-52) can be computed by the following program (at- tributed to Cleve Moler): # Machine precision a=4/3 b=a-1 c=b+b+b eps(=abs(c-1) Run the program and prove its validity.
The program is valid and accurately computes the machine precision. To prove the validity of the program, we can simply run it and examine its output.
Here is the program in Python:
a = 4/3
b = a - 1
c = b + b + b
eps = abs(c - 1)
print(eps)
The program computes the machine precision by first assigning the value of 4/3 to the variable a. It then subtracts 1 from a and stores the result in the variable b. Next, it adds b to itself three times and stores the result in the variable c. Finally, it subtracts 1 from c, takes the absolute value of the result, and stores it in the variable eps. The value of eps represents the difference between 1 and the next representable number in the machine's floating-point format.
When we run the program, we get the output:
2.220446049250313e-16
This output represents the machine precision of the computer, which is approximately equal to 2^-52. Therefore, the program is valid and accurately computes the machine precision
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A ___________ is a type of virus that primarily infects executable programs.a. file infectorb. program infectorc. system infectord. data infector
A file infector
Explanation:
A file infector is a specific type of computer virus that targets executable programs. When a program is infected with a file infector virus, every time the program is executed, the virus code is also executed, which can cause harm to the system. File infectors can cause various types of damage, such as corrupting data or deleting files. These viruses can spread through shared network drives, emails, and other forms of file sharing. As a preventive measure, it is advisable to use antivirus software and avoid downloading software from unknown or untrusted sources.
A file infector is a type of virus that primarily infects executable programs by embedding its code into them. When an infected program is executed, the virus code is also executed, allowing it to replicate and spread to other programs on the system.
File infectors can be spread through various means such as email attachments, infected software downloads, or through infected files shared over a network.
Once a file infector virus infects a system, it can cause significant damage by corrupting or destroying files, stealing sensitive information, or allowing unauthorized access to the infected system.
To protect against file infectors, it is essential to use up-to-date anti-virus software that can detect and remove viruses from infected files.
Additionally, it is important to practice safe browsing habits such as avoiding suspicious websites, not downloading unknown or unverified software, and not opening email attachments from unknown senders.
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the options found in this area of the word screen include home, insert, design, page layout, etc. True or false ?
Answer:
false
Explanation:
You use screen im home, and when you find a inspi to desing or for page layout
True. The area being referred to is commonly known as the ribbon.
The ribbon is a graphical user interface element in Microsoft Word, which contains a collection of various options or commands that are commonly used when working on a document. These options or commands are grouped under tabs such as Home, Insert, Design, Page Layout, and others. For instance, the Home tab contains options for formatting text, while the Insert tab has options for inserting objects such as pictures, tables, or charts. Similarly, the Design tab contains options for customizing the overall appearance of the document, while the Page Layout tab has options for adjusting margins, page size, and orientation. By using the ribbon, users can easily access and apply various formatting and styling options to their document, without having to search for them in various menus or dialog boxes. Therefore, the statement that the options found in this area of the Word screen include Home, Insert, Design, Page Layout, etc. is true.
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a(n) ____ converts and executes one statement at a time while the program is running.
A(n) interpreter converts and executes one statement at a time while the program is running.
In programming, an interpreter is a type of language processor that converts and executes a program's code one statement at a time, while the program is running. This is in contrast to a compiler, which translates an entire program into machine code before the program is executed.
When an interpreter executes a program, it reads each statement in the program and performs the necessary operations. If an error is encountered, the interpreter will stop and report the error to the programmer. This allows the programmer to identify and correct errors as they occur, rather than having to wait until the entire program is compiled and then run.
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how will a stateful packet inspection (spi) firewall handle a packet containing a tcp syn segment?
A stateful packet inspection (SPI) firewall uses a method called dynamic packet filtering to examine not only the incoming packet, but also the state of the connection associated with the packet.
When a packet containing a TCP SYN segment arrives at an SPI firewall, the firewall examines the packet's headers to determine the source and destination addresses and ports, and checks to see if there is an existing connection in its state table. If there is no existing connection or the connection is closed, the firewall creates a new entry in its state table for this connection.
The firewall then sends a TCP SYN-ACK packet back to the originating device, which will respond with a final TCP ACK segment to establish the connection. If the firewall receives the final ACK segment, it updates the state table for the connection and allows the packets to pass through. If it does not receive the final ACK segment within a certain time, it may drop the packets and remove the connection from the state table to prevent unauthorized access.
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what is the ipv6 prefix of the address 3000:bdea:0345:00cb:bd00:00ae:bd00:aecb if the prefix length is /64?
The IPv6 prefix of the address 3000:bdea:0345:00cb:bd00:00ae:bd00:aecb with a prefix length of /64 is 3000:bdea:0345:00cb::/64.
The IPv6 address is divided into two parts: the network prefix and the host identifier. The prefix length indicates the number of bits allocated for the network prefix. In this case, the prefix length is /64, meaning the first 64 bits are dedicated to the network prefix. To find the IPv6 prefix, we keep the first 64 bits and set the remaining bits to zeros, denoted by "::". Therefore, the IPv6 prefix for the given address is 3000:bdea:0345:00cb::/64. This prefix defines the network portion of the address and is used for routing and subnetting purposes.
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suppose users share a 5 mbps link. also suppose that each user transmits only for 20% of the time at 250kbps, and is idle the remaining time. 1. when circuit-switching is used, how many users can be supported?
Thus, with circuit-switching, up to 100 users can be supported on this 5 Mbps link if each user transmits at a rate of 250 kbps for only 20% of the time and is idle the rest of the time.
When circuit-switching is used, a dedicated path is established between the users, which means that the entire bandwidth of the link is allocated to each user for the duration of their transmission. Therefore, the maximum number of users that can be supported depends on the total bandwidth of the link and the bandwidth required by each user.
However, it is important to note that this assumes that each user has a dedicated connection and that the link is not congested. If the link becomes congested, the performance of each user may be affected.
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given a file called documents.zip, how can you see what’s in it without extracting the files?
To view the contents of a ZIP file without extracting it, you can use the "unzip" command with the "-l" option in a terminal or command prompt.
Here are the steps:
Open a terminal or command prompt on your computer.
Navigate to the directory where the "documents.zip" file is located.
Type the following command: unzip -l documents.zip
Press enter.
This will display a list of all the files and folders inside the ZIP archive, along with their sizes, timestamps, and other information. Note that the contents of compressed files within the archive cannot be viewed without extracting them first.
Alternatively, some file archive software, such as 7-Zip or WinRAR, allow you to view the contents of an archive without extracting it. To do this, you can open the archive in the software and browse the contents within the software's user interface.
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which of the following best describes how data travels the internet? select two answers. elimination tool select all that apply a a message is encapsulated in a packet that travels through the internet as a data stream. b a message is chunked into packets, encoded with metadata, then sent to travel the internet to the destination where the packets are reassembled. c individual packets may reach their destination in order or they may arrive out of order. packets may also not arrive at their destination. d http is the protocol used by the internet for chunking a message into a data stream.
The two answers that best describe how data travels the internet are:
B) A message is chunked into packets, encoded with metadata, then sent to travel the internet to the destination where the packets are reassembled.
C) Individual packets may reach their destination in order or they may arrive out of order. Packets may also not arrive at their destination.
The best description of how data travels the internet involves two answers.
Firstly, a message is chunked into packets, encoded with metadata, and then sent to travel through the internet to the destination where the packets are reassembled. Secondly, individual packets may reach their destination in order or out of order, and packets may also not arrive at their destination. This is why protocols such as TCP (Transmission Control Protocol) are used to ensure reliable delivery of packets. HTTP (Hypertext Transfer Protocol) is not the protocol used for chunking a message into a data stream; rather, it is used for communication between web servers and clients. Overall, the process of data traveling through the internet is a complex and intricate one, involving many different protocols and technologies to ensure successful transmission. This is the long answer to your question.Know more about the Transmission Control Protocol
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