In a table, a primary key is a column, or set of columns, that uniquely identifies each row of data. The primary key, for instance, in the table below is CustomerNo, which shows the ID numbers given to various customers.
The column or columns that each row in a database uses to uniquely identify itself is known as the primary key. For Optim to insert, update, restore, or remove data from a database table, the table must contain a primary key. The primary keys set for the database are used by Optim. Any sort of information that may be used to identify a person, such as their name, address, phone number, passport details, and social security number, is referred to as personal identifying information (PII).
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true or false? each layer of the open systems interconnection (osi) reference model needs to be able to talk to the layers above and below it.
Each layer of the open systems interconnection (OSI) reference model needs to be able to talk to the layers above and below it. The sentences is TRUE.
The open systems interconnection (OSI) model presents a standard data flow architecture, with protocols specified in such a way that the receiving layer at the destination computer receives exactly the same object as sent by the matching layer at the source computer.
The OSI model provides a standardized way of thinking about the different aspects of computer networking, breaking down the process of communication between computer systems into seven distinct layers. Each layer performs a specific set of tasks and is responsible for a specific aspect of the communication process.
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g where in the max-heap might the smallest element reside, aasuming that all elements are distinct?
Only a leaf node may house the smallest element.
Where may the smallest element be found in a max heap?In a MAX heap, the final level or second last of the heap will always contain the heap's smallest values, and the time complexity of getting there is O. (n). To identify the smallest element and heap, we must do a linear search across all of the elements.The leaf of the max heap always contains the smallest element (12).Only a leaf node may house the smallest element. According to the max heap attribute, a parent node cannot have the lowest value since it has a value larger than the value of its children.To learn more about max-heap refer to:
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Only a leaf node may house the smallest element, assuming that all elements are distinct.
Where may the smallest element be found in a max heap?In a MAX heap, the final level or second last of the heap will always contain the heap's smallest values, and the time complexity of getting there is O. (n). To identify the smallest element and heap, we must do a linear search across all of the elements.
The leaf of the max heap always contains the smallest element (12).
Only a leaf node may house the smallest element. According to the max heap attribute, a parent node cannot have the lowest value since it has a value larger than the value of its children.
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2.2 discuss the main categories of data models. what are the basic differences among the relational model, the object model, and the xml model? (15pts)
Relational models and object-oriented models are the two subcategories of document models. The models of these are distinctive.
In essence, XML is a document model. Excellent for allowing the transmission of structured messages between systems. The Object-Oriented model is a very effective way to work with data in code, and an Object-Oriented database can be a good option if you need to persist the state of well-designed objects. Not good once more if you want to extract data that spans multiple objects. Huge amounts of data can be handled by the relational model very well, and its querying and control mechanisms are very robust. The drawback is that it takes a lot of expertise to plan and implement, and you will run into object-relational impedance when extracting the data and converting it into objects for your Object-Oriented systems or XML.
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you just completed a process through which you reviewed a patient record and entered the required elements into a database. what is this process called?
Answer:
abstracting
Explanation:
this is the process of hiding all irrelevant data into a filesystem to keep it as simple as possible.
as implied here "entered the required elements into a database"
i hope this helped, love! good luck <3
hubspot test true or false? the higher your da (domain authority), the easier it should be for your topic clusters to rank
The correct answer is True. the higher your da (domain authority), the easier it should be for your topic clusters.
a method that focuses on using software to conveniently store and source contact information, such as a person's name, contact information, email address, and more. Ideally, you want to focus on a core subject that receives a lot of monthly searches and is pertinent to your industry (and customers). Typically, a relevance of between 50 and 70% is a reasonable place to start, while greater is also acceptable. Software that is designed to automate marketing actions is referred to as marketing automation. In many marketing organisations, repeated processes like emails, social network posts, and other website actions must be automated. These duties are made simpler by the marketing automation technologies.
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what is the decimal value of the following binary number? 10011101
It is the decimal equivalent of the binary number 10011101.= 157 the decimal number 157 in binary number can be represented as 10011101.
Option D is correct.
Evaluating :1.Write down the binary number: 10011101
2: Multiply each digit of the binary number by the corresponding power of two:
1 x 27 + 0x26 + 0x25 + 1x24 + 1x23 + 1x22 + 0x21 + 1x20
3: Solve the powers:
1x128 + 0x64 + 0x32 + 1x16 + 1x8 + 1x4 + 0x2 + 1x1 = 128 + 0 + 0 + 16 + 8 + 4 + 0 + 1
4: Add up the numbers written above:
128 + 0 + 0 + 16 + 8 + 4 + 0 + 1 = 157.
This is the decimal equivalent of the binary number 10011101.
How do binary numbers work?The binary numeral system, also known as the base-2 numeral system, is a mathematical way to express numbers that only uses two symbols, typically "0" (zero) and "1." one). The base-2 number system is a positional notation because it has a radii of 2. Each digit is referred to as a bit, or binary digit. Due to its simplicity of language and noise immunity in physical implementation, the binary system is preferred by almost all modern computers and computer-based devices to other human communication methods. This is because it is easy to use in digital electronic circuitry thanks to logic gates. The ancient Egyptian method of multiplication is also closely related to binary numbers.
Incomplete question :
what is the decimal value of the following binary number? 10011101
A. 151
B.167
C.153
D.157
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as a member of the help desk team, you have been assigned to update the driver for the network adapter that is installed on most of the computers in your department. you have a copy of the latest driver on a usb flash drive. which windows utility allows you to manually update this new driver?
To manually update the network adapter driver in Windows, use the Device Manager utility to browse for the new driver on the USB flash drive and install it.
To manually update the network adapter driver in Windows, you can use the Device Manager utility. To access it, you can right-click the Start button and select "Device Manager" from the context menu, or you can search for "Device Manager" in the Start menu or Cortana search bar. Once in Device Manager, find the network adapter for which you want to update the driver, right-click it and select "Update Driver." From there, you can select "Look through my computer for driver software." and point the search to the USB flash drive's driver location.
After selecting the option to "Browse my computer for driver software," you will be prompted to specify the location of the driver. Navigate to the folder on the USB flash drive where you have saved the new driver and select it. Windows will then install the updated driver for the network adapter.
It's worth noting that before installing the new driver, it's always a good idea to backup your current driver and system configuration in case of any issues. Also, ensure that you have administrative rights on the computer and that the new driver is compatible with your specific version of Windows and the network adapter hardware.
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if a variable called pioneer refers to the string 'grace murray hopper', what is the result of the expression len(pioneer)? 17 18 19 20
The result of the expression len(pioneer) is 18, as it returns the length of the string that the variable pioneer refers to.
What is expression?Expression is the process of conveying ideas, feelings, and emotions through words, actions, and symbols. It involves the use of language to express oneself in a meaningful way. Expression can also be in the form of art, music, dance, or any other medium of self-expression. It is an important part of communication and helps to convey thoughts, feelings, and emotions. Expression can be used to express feelings, opinions, and ideas, as well as to influence others. Expression can help foster understanding and connection between people and can be used to create a sense of unity and shared identity.
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how can you find out which computer crime laws are applicable in your state? (choose all that apply.) a. contact your local law enforcement agencies. b. contact your isp provider. c. contact your local computer store vendor. d. research online for the laws in your area.
Searching online for local laws and contacting your local police enforcement are the best ways to learn which computer crime statutes are applicable in your state. Option D is correct.
How can you find out which computer crime laws are applicable in your state?You can: To ascertain which state laws are applicable to computer crime in your state: You can undertake local law research online by going to the website of your state's national legislature or using a search engine to look up the relevant laws in your state. Contact your local police departments: To learn more about the local laws that apply to you, get in touch with your neighbourhood police force, district attorney's office, or statewide attorney general's office. Find the federal statutes that deal with cyber crime online. State laws may coexist with federal laws, like the Computer Fraud and Abuse Act.
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he microsoft management console (mmc) contains several snap-in consoles to assist systems administrators to enforce it policies on a network. systems administrators can configure settings such as enforcing secure password policy. often the configurations are carried-out via group policy at the domain level, and the policy flows down to users and nodes on the network. there are times when local group policy and local security policy can be used on workstations. explain how to enable a local group policy not to display the most recent logon credentials on a workstation. why might this be desirable?
To enable a local group policy not to display the most recent logon credentials on a workstation, start by opening the Microsoft Management Console (MMC).
What is workstation ?A workstation is a computer designed for technical or scientific applications. It is a high-performance machine intended for heavy-duty computing tasks such as computer-aided design, video editing, and software development. Workstations typically have powerful processors, large amounts of RAM, and high-end graphics cards to provide the user with an optimal computing experience. They are also equipped with multiple I/O ports, allowing for the connection of peripheral devices such as monitors, keyboards, and mice. Workstations are designed to be extremely reliable and to provide lag-free performance, even when performing intensive tasks. As such, they are commonly used in professional environments such as engineering, finance, architecture, and animation.
From the File menu, select the Add/Remove Snap-in command. In the Add/Remove Snap-in window, select Group Policy Object Editor and click Add. Select the Local Computer option and click Finish. You should now see the Local Group Policy Object in the MMC.
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what is a disadvantage of using a dvd-r dl (dual layer) disc over an ordinary dvd? answer a dvd-r dl has to skip across the disc to find the next track. a dvd-r dl is not backwards-compatible with a regular dvd player. a dvd-r dl stores less data. a dvd-r dl has slower write speeds.
It is correct to state that a disadvantage of using a DVD-R DL (dual layer) disc over an ordinary DVD is that a DVD-R DL has slower write speeds. (Option D)
What is a DVD-R DL (dual layer)?A DVD-R DL (dual layer) disc is a type of DVD that has two layers of data storage on a single disc. It allows for more data to be stored on a single disc compared to a standard single-layer DVD-R disc.
The two layers on a DVD-R DL disc are separated by a thin, transparent layer and can store up to 8.5 GB of data, twice the amount of a standard DVD. DVD-R DL discs are commonly used for storing large amounts of data, such as high-definition video, and can be played on most DVD players that support dual layer discs.
However, the slower write speeds and compatibility issues with some DVD players may make DVD-R DL discs less suitable for some uses.
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which of the following statements about data processing methods is true? a) control totals are used to verify accurate processing in both batch and online batch processing. 39) b) batch processing cannot be used to update a master file. c) real-time processing does not store data in a temporary file. d) real-time processing is only possible with source data automation.
The statement about data processing methods is to total control are used to verify accurate processing in both online and batch processing. Therefore option A is correct.
Control totals are a means of checking the accuracy of data processing. Both batch processing and online batch processing methods can use control totals to verify that the data has been processed correctly. In batch processing, transactions are grouped together and processed as a batch at a later time, and control totals can be used to verify the accuracy of the batch by comparing the total number of transactions, the sum of transaction amounts, or other relevant information to expected values.
Online batch processing combines batch processing with real-time processing, allowing transactions to be processed and updated in a batch mode, but still available for transactions during processing.
Control totals can still be used in the same manner as batch processing to verify the accuracy of the transactions. Real-time processing processes transactions as they occur, updating the system immediately without storing data in a temporary file. This type of processing typically does not use control totals as a means of verifying accuracy, as errors can be immediately corrected in real-time.
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How to Fix ‘The Security Database on the Server does not have a Computer Account for this Workstation Trust Relationship’ Error on Windows?
Change the time and date settings or remove the computer from of the domain and re-join it.
What does domain mean?The term "domain," which is special to the internet, can apply to the structure of the web and also the organization of an industry's network resources. A domain is typically a sphere of expertise or a controlling region.
Why do I require a domain name?It's not technically necessary to have a domain name to establish a presence online. A domain of your own is a need for boosting confidence in your brand or company since it provides you control of your online identity and the material you upload.
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explain what an index is and how it works in speeding up data retrieval. describe one issue that can occur by using too many indexes in a table.
The correct answer is An index is used to improve SQL query performance and data search. The database indexes minimise the amount of data pages that must be read to locate a particular entry.
When there are too many indexes, the Query Optimizer has to process more data pages, which adds to the overhead. Additionally, having too many indexes increases the amount of storage needed and the amount of time it takes to do maintenance. The process of indexing involves grouping economic data into a single metric or comparing data to one. There are several financial indexes that track market activity or reflect economic activity; these indexes serve as performance standards against which fund managers and portfolios are evaluated.
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using the rules we learned in class determine if this ip address configuration is valid for a public internet host? make sure you apply all the address rules to determine validity. ip address 230.50.10.5 mask 255.255.255.0
This statement is False: using the rules we learned in class determine if this ip address configuration is valid for a public internet host.
A computer network that uses the Internet Protocol for communication is identified by its IP address, which is a numeric label. 192.0.2.1 is an illustration of such an IP address. An IP address serves two main functions: identifying the network interface and location addressing.
The Internet Protocol version 4 (IPv4) specifies that an IP address is a 32-bit value.
However, in response to the growth of the Internet and the expiration of IPv4 addresses, a new version of IP (IPv6) was developed in 1998. 128 bits are used in IPv6 for the IP address. Since the middle of the 2000s, IPv6 deployment has been taking place.
IP addresses are written and displayed using human-readable notations, such as 192.0.2.1 for IPv4 and 2001:db8:0:1234:0:567:8:1 for IPv6. By adding the number of significant bits to the address, as in 192.0.2.1/24, which is equivalent to the subnet mask 255.255.255.0 that was previously in use, the size of the routing prefix of the address is represented in CIDR notation.
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the unicode coding scheme supports a variety of characters including those for chinese, japanese, and arabic languages.T/F
The coding system known as Unicode supports a wide range of characters, including those for the Chinese, Japanese, and Arabic languages.
What is an example of Unicode?For example, the word "Hello" is written as U+0048 U+0065 U+006C U+006C U+006F. Unicode allows more than a million code points, which also are written with a "U" followed by the a plus sign and the value in hex (see hex chart).
Is Unicode used in HTML?The Unicode Standard has gained popularity and is used in a variety of applications including HTML, XML, Java, JavaScript, email, ASP, and PHP. All current browsers and numerous OS systems support the Unicode standard.
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by utilizing resource scheduling software, you determine several opportunities for overlapping phases in order to speed up the process. this is an example of
Resource scheduling software allows for optimization of project timelines by identifying opportunities for overlapping phases, thereby reducing project duration and increasing efficiency. This results in a faster and more organized process.
Overlapping phases in resource scheduling software refer to the process of identifying and executing tasks in parallel, instead of sequentially, to reduce the total duration of a project. This method can be applied to various types of projects and industries, such as construction, software development, and manufacturing, to streamline project timelines and improve efficiency. Resource scheduling software provides a visual representation of project tasks and dependencies, enabling project managers to identify opportunities for overlap and allocate resources accordingly. The software also helps to avoid resource conflicts and ensures that all critical tasks are completed on time. By using resource scheduling software to optimize project timelines through overlapping phases, organizations can achieve their project goals faster and more effectively.
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you wish to add a copy of the global catalog to a domain controller within active directory sites and services. for which object must you right-click and select properties?
Within Directory Sites and Services, you should right-click the domain controller object and choose "Properties" in order to add a copy of the global catalogue to the domain controller.
Which object must you right-click and select properties?A tab called "NTDS Settings" can be found in the Properties window. By ticking or unclick the "Global Catalog" checkbox, you can add or remove the global catalogue role from the domain controller here. You must restart the controller after making the appropriate modifications in order for them to take effect. Keep in mind that introducing a global catalogue to a dns server is a crucial operation that should only be carried out by knowledgeable administrators. The consequences of introducing a worldwide catalogue must be carefully considered, including the quantity of disc space needed and the potential effects on network traffic. Before making modifications, it is also advised to create a copy of the domain controller.
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in debugging mode, what is the keyboard shortcut to continue execution to the next breakpoint (or to the end of the program if no more breakpoints exist)?
The shortcut that is used to continue execution to the next breakpoint is F5. F5 on keyboard is placed in the above.
A shortcut refers to a link to a thing (such as a file, folder, drive, or program) on your computer. You can make shortcuts and then put them in a convenient place so that you can easily access the thing that the shortcut links to.
There are many aims when you use keyboard shortcuts. For beginners, they can help you work more quickly and efficiently. They can also help you be more productive by letting you to act multiple tasks at once. In addition, keyboard shortcuts can make you lock your screen or switch between windows and apps.
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How to Fix Steam "1 file failed to validate and will be reacquired" Error
Check the game files' integrity on Steam, or uninstall and redownload the application.
Describe a file.A collection of data or information held on a storage medium, such as a hard disk or flash drive, is referred to as a file in a computer. Text, photos, audio, video, and other types of digital content can all be found in files. They are frequently arranged in a system files, which makes it possible to find and control files on a computer.
Why was this file made?To store and organize data, information, or media on a computer, files are created. Users can access and save their work, documents, photos, audio files, video files, or other digital items for later use.
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Which of the following is a common feature of a network operating systems
Answer:
Basic support for operating systems like protocol and processor support, hardware detection and multiprocessing.
Explanation:
Basic support for operating systems like protocol and processor support, hardware detection and multiprocessing.
a substiution that has a plaintext value that is mapped to multiple cipher texts is an example of permutation?
No, a substitution that maps a plaintext value to multiple ciphertexts is not an example of a permutation. In cryptography, a permutation is a bijective mapping, meaning that every plaintext value has a unique ciphertext value, and every ciphertext value has a unique plaintext value.
A substitution that maps a plaintext value to multiple ciphertexts is an example of a many-to-many mapping, which is not considered a permutation. A many-to-many mapping can cause confusion and make it difficult to determine the original plaintext from the ciphertext, so it is generally not used in cryptography.
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true or false: the font group on the home ribbon can be used to adjust the formatting, location, and styles of headers, footers, and page numbers
It's False because the Font group on the Home ribbon is primarily used to adjust the formatting of text in a document.
It includes options for changing the font type, font size, bolding, italicizing, underlining, and more. While headers, footers, and page numbers are a part of a document's text, they are not typically formatted using the Font group. To adjust the formatting, location, and styles of headers, footers, and page numbers, you would use the Page Layout or Insert ribbon, which includes options for setting margins, page orientation, page background color, page borders, and more. You can also use these ribbons to insert page numbers, date and time stamps, and other elements into headers and footers.
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provide an acidic or basic environment to optimize digestion
In comparison to other parts of our digestive system, the stomach has a considerably lower pH and serves as a storage area for powerful acids.
What provides an acid or basic environment to optimize digestion?The enzymes that help break down proteins into smaller protein fragments, the initial step in the digestion of our food, can be activated in this environment because it is ideal for this process.Acids and bases operate in your digestive tract during food digestion. Take the stomach enzyme pepsin into consideration, which aids in the breakdown of proteins. An acidic environment is necessary for pepsin to function. Pepsin is able to function because of the stomach's production of the potent hydrochloric acid.Digestive enzymes are produced by the bacteria in your GI tract, often known as your gut flora or microbiome. Your vascular and neural systems, in part, are also beneficial. Together, your digestive system's organs, blood, hormones, bacteria, neurons, and hormone receptors break down the food and liquid you consume every day.To Learn more About digestive system Refer To:
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Windows 7 search could search for files and folders on the local system as well as on the network shares. True or False
Answer:
True
Explanation:
Computer that us part of a workgroup can access the network
Which type of attack occurs if an application overruns the allocated buffer boundary and writes to adjacent memory locations?
Buffer overflow attacks take place when a program crosses the allocated buffer barrier and writes to nearby memory regions.
Race situation overflow: what is it?A race problem arises when two or even more threads attempt to alter shared data while they have concurrent access to it. But since thread scheduling technique might switch between tasks at any time, you cannot anticipate the sequence that the threads may attempt to obtain the shared data. The outcome of the data modification relies just on thread scheduling method since both threads were "racing" to access/alter the data.
How can buffer overflows occur?A interrupt (or buffer overrun) happens when the amount of data generated is greater than the ram buffer's storage capacity. Because of this, the program that is attempting to transfer the information to the buffer overwrites surrounding memory regions.
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write a program that inputs a filename from the user and prints to the terminal a report of the wages paid to the employees for the given period.
Here is a Python code that inputs a filename from the user and prints a report of the wages paid to the employees for the given period:
def generate_wage_report(filename):
with open(filename, 'r') as file:
lines = file.readlines()
employee_wages = {}
for line in lines:
name, wage = line.strip().split(',')
employee_wages[name] = employee_wages.get(name, 0) + int(wage)
for employee, wage in employee_wages.items():
print(f'{employee}: ${wage}')
filename = input('Enter the filename: ')
generate_wage_report(filename)
Coding is the process of writing instructions in a computer programming language to create software, applications, or other computer systems. The instructions, also known as code, are written in a specific language that the computer can understand and execute. The purpose of coding is to automate tasks, solve problems, and make information more accessible and useful to people.
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true or false. From 2011 to 2018, ESPN lost 14 million cable tv subscribers, costing the company over a billion dollars annually.
Between 2011 and 2018, ESPN lost 14 million cable TV subscribers, which cost the company more than $1 billion annually---- True
What exactly is cable TV?Subscribers can get cable television service from a cable operator, which sends videos over coaxial or fiber optic cables. Programming delivered via satellite or other facilities without the use of a wire is not considered "cable television" in accordance with the Commission's standards.
Is it possible to use cable TV offline?Yes, your smart TV will function normally even without an internet connection. Using a cable box or an antenna, you will be able to connect speakers, Blu-ray/DVD players, and any other devices you like to watch TV and do other things. However, you won't be able to use any of the built-in video streaming apps.
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what should be included on a graph with more than one dataset that does not appear on a graph with only one data set?
When displaying multiple datasets on a graph, a legend should be included to help differentiate between the different data. Additionally, labels should be included to indicate the values of the x- and y-axes.
When constructing a graph with multiple datasets, there are a few additional elements that should be included to ensure clarity and accuracy. A legend should be included to differentiate between the multiple datasets. This legend should indicate the color, line type, and other distinguishing features of each data set. Labels should also be included to clearly indicate the values on both the x- and y-axes. These labels can be numerical, categorical, or a combination of the two. Additionally, it is important to include a title that accurately reflects the information being depicted on the graph. Finally, if data points are included in the graph, they should be labeled so that they are easily identifiable. All of these elements work together to ensure that the graph accurately reflects the data that is being displayed.
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jack wants to change a file that he owns to have full permission for himself and remove all permissions for anyone else. what command should he enter?
Use the chmod command to alter the permissions of files and directories (change mode). The read, write, and execute permissions can be added (+) or subtracted (-) by the owner of a file to alter the permissions for a user (u), group (g), or others (o). 10-May-2021
You may modify a file's permissions by using the chmod command. To modify the permissions of a file or directory, you must be the owner of the object or the superuser. You would enter chmod o-r [filename] to make a file world read-only. You would enter chmod g-rx,o+rx [filename] to remove group read and execute permission while adding the same permission to world. Type chmod go= [filename] to erase all group and world permissions. Every file on the system under / (root) is given rwxrwxrwx permissions using the command chmod -R 777 /. This is the same as givingread/write/execute capabilities to ALL users. Other folders beneath root, such as home, media, etc., will also be impacted.
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