An image created by bits or pixels placed on a grid to form a picture is called a raster image.
In a raster image, each pixel represents a single point of color or shade in the image. The pixels are arranged in a grid-like pattern, with each pixel containing information about its color or intensity. Raster images are commonly used in digital photography, computer graphics, and various applications where fine details and color variations are important. They are well-suited for representing realistic images and complex visual scenes. Examples of raster image formats include JPEG, PNG, and GIF. In a raster image, the resolution determines the level of detail and sharpness. Higher resolutions have more pixels per unit of area, resulting in finer details and smoother images. However, raster images are resolution-dependent, meaning they can lose quality and appear pixelated when resized or scaled up.
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a maintenance model such as iso 17799 deals with methods to manage and operate systems.true/false
False. ISO 17799 (now ISO/IEC 27001) is a standard for information security management systems, which includes controls and guidelines for implementing, maintaining, and improving information security.
While it may involve some operational aspects, it primarily deals with the management of security systems and the protection of sensitive information. ISO 17799/27001 provides a framework for organizations to identify, assess, and manage information security risks. It includes a set of controls and guidelines that can be customized to an organization's specific needs and requirements. These controls cover various aspects of information security, such as access control, cryptography, incident management, and business continuity. The standard also provides a structured approach to managing security, including risk assessment, security policies, procedures, and training.
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web-based software must be installed on a computer before it is run.
Actually, web-based software does not need to be installed on a computer in order to run. Instead, it is accessed through a web browser and the necessary content is loaded directly from the internet.
This makes web-based software a convenient and easily accessible option for users. However, it's important to note that the content loaded web-based software may require a stable internet connection in order to function properly.
Web-based software, also referred to as "content loaded web-based" software, does not need to be installed on a computer before it is run. Instead, it operates through a web browser, allowing users to access and use the software without any installation process. This is in contrast to traditional software, which must be installed on a computer's hard drive before being utilized. Web-based software offers greater convenience and accessibility, as users can access the application from any device with an internet connection.
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very large peer-to-peer networks have emerged to take advantage of the internet.a. trueb. false
The answer is true. With the increasing popularity of the internet, very large peer-to-peer networks have indeed emerged.
These networks allow individuals to share and exchange data, files, and information without relying on a central server or authority. This decentralized approach to networking has led to the creation of various platforms such as BitTorrent, Gnutella, and eDonkey, among others. These networks have proven to be highly effective for sharing large files, such as videos, music, and software, among a large number of users. However, the use of peer-to-peer networks has also raised concerns regarding copyright infringement, security, and privacy. Nonetheless, these networks have become an integral part of the modern internet landscape and are likely to continue to evolve and grow in the future.
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contributions that originate with the poster are categorized as ________.
Contributions that originate with the poster are categorized as user-generated content.
User-generated content refers to any form of content, such as comments, posts, photos, videos, and more, that is created by users and posted on a website, forum, social media platform, or other digital channel. This type of content is often seen as more authentic and trustworthy than brand-generated content, as it comes from real people with personal experiences and perspectives. User-generated content can be an effective way to build engagement, foster community, and generate buzz around a brand or product.
User-generated content (UGC) has become increasingly popular in recent years, as more and more brands recognize its power to connect with consumers and drive engagement. UGC can take many different forms, from reviews and testimonials to social media posts and blog articles. Whatever form it takes, however, UGC is a valuable asset for brands looking to build their online presence and connect with their audience. One of the key benefits of UGC is that it is often seen as more authentic and trustworthy than other types of content. When users share their experiences and opinions about a product or service, they are providing valuable insights that can help other consumers make informed decisions. This can be particularly important in industries like travel, where people often rely on reviews and recommendations from others when planning their trips. Another advantage of UGC is that it can be a powerful tool for building engagement and fostering community. When users feel that their contributions are valued and appreciated, they are more likely to continue participating and sharing their thoughts and experiences. This can create a sense of loyalty and community around a brand or product, which can be incredibly valuable in the long run.
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True/False - All the classes in the Design Class Diagram are used to define the database tables.
The most common and flexible data-acquisition method is ____.
A) Disk-to-disk copy
B) Disk-to-network copy
C) Disk-to-image file copy
D) Sparse data copy
None of the options provided in the question accurately describes the most common and flexible data-acquisition method.
The most common and flexible data-acquisition method is typically considered to be data logging, which involves the collection and storage of data from various sources, such as sensors or instruments, over a period of time.
This data can then be analyzed and used for various purposes, such as monitoring system performance or identifying trends and patterns. Data logging can be done using a variety of methods and technologies, such as standalone data loggers, computer-based data acquisition systems, or cloud-based platforms.
The method used depends on the specific application and requirements of the data acquisition project.
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if either ____ or sharing is enabled, excel enables the other by default.
In Microsoft Excel, if either the "Track Changes" or "Sharing" feature is enabled, Excel will enable the other feature by default.
This means that when you turn on one feature, the other will be automatically enabled, as well. For example, if you enable Track Changes to keep track of changes made to a shared workbook, Excel will automatically enable the Sharing feature.
Similarly, if you enable Sharing to allow multiple users to edit a workbook simultaneously, Excel will automatically turn on Track Changes to keep track of the changes made by each user. This default behavior can be convenient, as it helps ensure that your workbook is set up in a way that best suits your needs. However, it's important to be aware of this behavior so that you can adjust your settings accordingly and avoid any unintended consequences.
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which type of document would you use to provide information updates and interim reponses to the command group
In order to provide information updates and interim responses to the command group, one could use a status report. A status report is a type of document that provides a snapshot of the current status of a project or task, including progress, accomplishments, issues, and next steps. Status reports are typically prepared on a regular basis, such as weekly or monthly, and are used to keep stakeholders informed and to identify any problems or risks that need to be addressed.
A status report can be a very effective way to communicate with the command group, as it provides a concise and organized summary of the key information that they need to know. The report can be tailored to the specific needs of the audience, including highlighting key achievements or challenges, and can be accompanied by supporting documents or data as needed.
Overall, a status report can be a valuable tool for keeping the command group informed and engaged in the project or task, and can help ensure that everyone is on the same page and working towards the same goals.
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ms-dos first used a(n) ________ interface.
MS-DOS, or Microsoft Disk Operating System, was first used in the early 1980s and was designed to be a command-line interface operating system. This means that the interface of MS-DOS was text-based, where users had to type in specific commands to execute tasks.
The initial versions of MS-DOS did not have any graphical user interface, or GUI, which is a more intuitive way of interacting with a computer using icons and images. Instead, MS-DOS relied on the use of keyboard commands to navigate the operating system and execute programs. MS-DOS was an important milestone in the history of personal computing, as it enabled early personal computers to become more accessible and usable. The command-line interface of MS-DOS allowed users to control the computer directly, giving them greater flexibility and control over their machines. However, it was also a somewhat intimidating and complex system to use, especially for those without prior computer experience.
Over time, MS-DOS evolved to include some graphical user interface elements, such as the use of menus and windows, but it was primarily a command-line interface operating system until the release of Windows 95 in 1995. Windows 95 marked a major shift in the way that users interacted with computers, as it introduced a much more user-friendly GUI that made it easier to navigate and use the operating system. Nevertheless, MS-DOS remains an important part of the history of computing, and its legacy can still be seen in many modern operating systems today.
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the most common file types supported by digital cameras are raw uncompressed (raw) data and
The most common file types supported by digital cameras are raw uncompressed (RAW) data and JPEG (Joint Photographic Experts Group) formats. RAW files contain the unprocessed sensor data, while JPEG files are compressed and processed for better storage and compatibility.
Raw files are preferred by professional photographers as they contain all the information captured by the camera sensor and allow for more flexibility in editing. JPEG files are compressed and smaller in size, making them easier to share and use for everyday purposes. Some cameras also support TIFF and PNG file types. It is important to note that the file type can be set in the camera's settings and should be chosen based on the intended use of the photos.
RAW file format: RAW refers to an image file format that contains minimally processed data from a digital camera's image sensor. RAW files are considered to be the "digital negatives" of a photograph and contain more information than a JPEG or other compressed image format.
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In Agile Modeling, change is seen as the exception, not the norm.
False or true
False. In Agile Modeling, change is seen as the norm rather than the exception.
This is because Agile Modeling is an iterative and incremental approach to software development that emphasizes flexibility and adaptability. It recognizes that requirements and priorities can change frequently and that software development is an ongoing process of discovery and refinement.
Therefore, Agile Modeling encourages teams to be responsive to change, to embrace feedback, and to continuously improve their processes and practices. This helps teams to deliver software that meets the changing needs of their stakeholders in a timely and efficient manner.
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The instruction Myanswer = Mynumber*2 is an example of a(n) ____ operation.
a. processing
b. numerical
c. data
d. input
The instruction "Myanswer = Mynumber*2" is an example of a numerical operation.
Numerical operations involve mathematical calculations such as addition, subtraction, multiplication, and division. In this case, the instruction is multiplying the value of "Mynumber" by 2 and assigning the result to the variable "Myanswer". This is a common operation in programming and is often used to manipulate numerical data. Other types of operations include processing, which involves performing operations on data, input, which involves accepting data from a user, and data operations, which involve manipulating data in various ways. However, in this case, the instruction is specifically performing a mathematical calculation, making it a numerical operation.
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you can use powerpoint to trim video clips without having to use a separate video-editing program. true or false
PowerPoint offers basic video editing features, including the ability to trim video clips. Trimming a video clip means cutting away parts of it that are not necessary or unwanted. PowerPoint allows users to trim the beginning, middle, or end of a video clip.
To trim a video clip in PowerPoint, users need to select the clip on the slide and then click on the "Playback" tab. From there, they can choose the "Trim Video" option, which opens a new window that shows the video timeline. Users can then drag the handles on the timeline to select the portion of the video that they want to keep, and click "OK" to apply the changes.
It is important to note that PowerPoint's video editing capabilities are limited compared to dedicated video editing software. While trimming video clips is a basic feature, users cannot do more complex edits such as adding effects, transitions, or overlays. If users need to do more advanced video editing, they should use a dedicated video editing program instead.
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which of the following is an ad hoc network made up of up to eight bluetooth devices?
An ad hoc network made up of up to eight Bluetooth devices is called a piconet. In a piconet, one device acts as the master and up to seven other devices act as slaves. The master device initiates and controls the connection, while the slave devices receive commands and data from the master.
Piconets are typically used for short-range wireless communication between devices such as smartphones, laptops, and wireless headsets. The name "piconet" comes from the combination of "pico" (meaning small) and "network." This type of network is designed for small groups of devices that need to communicate with each other without the need for a centralized infrastructure. Bluetooth technology enables these devices to communicate wirelessly using low-power radio waves in the 2.4 GHz frequency range.
In summary, a piconet is an ad hoc network made up of up to eight Bluetooth devices, with one device acting as the master and up to seven devices acting as slaves. Piconets are designed for short-range wireless communication between devices without the need for a centralized infrastructure.
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the report layout tools tabs are ____ tabs available only when working with report objects.
The Report Layout Tools tabs are a set of contextual tabs that are available only when working with report objects in Microsoft Access. These tabs provide a range of tools and options that are specific to working with reports, allowing users to customize the layout and design of their reports in a variety of ways.
There are four main Report Layout Tools tabs available in Access: Design, Format, Page Setup, and Arrange. The Design tab provides tools for adding and modifying report objects, such as fields, labels, and images. The Format tab allows users to apply formatting styles to individual report objects, such as fonts, colors, and borders. The Page Setup tab provides options for setting the size, orientation, and margins of the report page. Finally, the Arrange tab provides tools for aligning and positioning report objects on the page.Overall, the Report Layout Tools tabs are an essential set of tools for anyone working with reports in Access. By providing a range of options for customizing the layout and design of reports, these tabs make it easy to create professional-looking reports that are tailored to the needs of the user.
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T/F; when joining two tables using sql, the convention is to use notation for field names.
True. When joining two tables using SQL, it is convention to use notation for field names, also known as aliases, to avoid ambiguity and make the SQL code easier to read and understand.
Aliases are temporary names assigned to fields in a table, and they are used in SQL statements to refer to a field by a different name. For example, if you have two tables that both have a field called "name", you can assign an alias to one of the fields to differentiate between them.The syntax for assigning an alias in SQL is "table_name.field_name AS alias_name". The "AS" keyword is optional and can be omitted, but it is often included for readability.
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The ____ operator allows you to search for a range of values in one field. a) AND b) OR c) NOT d) BETWEEN
Ad) BETWEEN. The BETWEEN operator is used to search for a range of values in one field. It allows you to specify a range of values that a field must fall within.
For example, if you want to find all customers who have purchased products between $100 and $500, you can use the BETWEEN operator to specify this range.
The BETWEEN operator is typically used in combination with the SELECT statement in SQL. Here's an example query that uses the BETWEEN operator:
sql
Copy code
SELECT * FROM customers
WHERE purchase_amount BETWEEN 100 AND 500;
This query will return all records from the "customers" table where the "purchase_amount" field falls within the range of $100 to $500.
In addition to the BETWEEN operator, SQL also provides other comparison operators that allow you to search for values in a field, such as the greater than (>), less than (<), and equal to (=) operators.
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without adjusting the column widths, guarantee that all columns will print on one page. font size
To ensure that all columns of a table or spreadsheet will print on one page without adjusting the column widths, one solution is to adjust the font size. This can be done by decreasing the font size of the text in the cells. By decreasing the font size, more data can fit within a cell, allowing more columns to fit on a single page.
It's important to keep in mind that decreasing the font size too much can make the text difficult to read. Therefore, it's recommended to only decrease the font size by a few points. For example, if the font size is currently set at 12pt, decreasing it to 10pt or 9pt should be sufficient to fit all columns on one page. Another tip is to use a font that is easy to read at a smaller size. Fonts such as Arial, Calibri, and Times New Roman are good options for smaller font sizes. In addition to adjusting the font size, other formatting options can be considered to fit more data on a single page. These include adjusting margins, removing unnecessary columns or rows, and adjusting the orientation of the page (e.g. landscape instead of portrait). Overall, by adjusting the font size and considering other formatting options, it's possible to fit all columns on one page without adjusting the column widths.
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the way that images appear to be moving in films and videos is actually an optical illusion. true or false
True. The way that images appear to be moving in films and videos is actually an optical illusion. This illusion is created by displaying a series of still images at a rapid rate, typically 24 frames per second.
Each frame is slightly different from the one before it, and our brains interpret this rapid succession of images as continuous motion. This phenomenon is known as persistence of vision. The illusion of motion is further enhanced by the use of techniques such as camera movement, editing, and special effects. So while we may perceive movement in films and videos, it is actually our brains filling in the gaps between still images to create the illusion of motion.
This phenomenon is known as the Persistence of Vision. It occurs because our eyes and brain retain an image for a brief moment after it has disappeared, creating the illusion of continuous motion when a series of still images is presented rapidly.
In films and videos, individual frames are displayed in quick succession (usually 24, 30, or 60 frames per second), giving the appearance of smooth, continuous motion.
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when selecting a punch down block, what block type is more suitable for data connections?
When selecting a punch down block for data connections, the more suitable block type would be a 110 punch down block. The 110 punch down block is designed specifically for data transmission and provides better performance compared to older block types like the 66 block, which is more suitable for voice connections.
A 110 punch down block is a Category 5 (Cat 5) or Category 6 (Cat 6) block. These blocks are specifically designed for use with twisted pair cabling used in Ethernet networks.
Cat 5 or Cat 6 block allow for easy termination of wires without the need for stripping. The Cat 5 and Cat 6 blocks have been tested and certified to meet specific standards for performance, so they ensure reliable data transmission. It is important to choose a block that is compatible with the cable and connectors being used to ensure optimal performance.
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when imitation is continuous, with one voice always following after another, this is known as:
When imitation is continuous, with one voice always following after another, this is known as a canon.
A canon is a type of composition where a melody is repeated by different voices or instruments, but each voice or instrument starts the melody at a different time. This creates an overlapping effect, where one voice or instrument is always following after another in a repeating pattern. Canons can be found in various musical styles, including classical music, folk music, and even pop music. They are often used as a way to add complexity and depth to a musical composition, and they can also be used as a teaching tool for music students to develop their skills in harmony and counterpoint.
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The BRANCH, PUBLISHER, and ____ tables are part of the Henry Books Database.a.SALESc.AUTHORb.LOCATIONd.PARTANS
The BRANCH, PUBLISHER, and AUTHOR tables are part of the Henry Books Database, while LOCATION and PARTISANS are not included.
The Henry Books Database is a sample database used to teach database design and SQL. It consists of various tables, including BRANCH, PUBLISHER, and AUTHOR, which are used to store information related to the books, their publishers, and the authors. The BRANCH table contains data about the branches of the Henry Books store, including their branch IDs, names, and addresses. The PUBLISHER table stores information about the publishers of the books, such as their names and addresses. The AUTHOR table contains data about the authors of the books, including their names and birth dates. These tables are interconnected using primary and foreign keys to enable efficient data retrieval and manipulation.
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what is one of the tools you can use to verify connectivity to a specific port on windows os?
One of the tools you can use to verify connectivity to a specific port on Windows OS is the Telnet command. Telnet is a command-line tool that enables you to establish a connection to a remote device or server using the Telnet protocol.
To verify connectivity to a specific port, you can use the Telnet command followed by the IP address or hostname of the target device and the port number you want to check. If the connection is successful, you will receive a message indicating that the connection was established. If the connection fails, you will receive an error message indicating that the connection could not be established.
The Telnet command can be useful for troubleshooting network connectivity issues and identifying problems with specific ports. However, it is important to note that Telnet is an unencrypted protocol and should not be used to transmit sensitive information over the network. As an alternative, you may want to consider using a more secure protocol, such as SSH, to establish connections to remote devices and servers.
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Which of the following is NOT an advantage of external hard drives over internal hard drives? Group of answer choices a. They can add storage space to a mobile computer. b. They leave data in the computer. c. They can transport a large number of files. d. They can easily store large audio and video files.
The correct answer is option b, "They leave data in the computer."
External hard drives offer several advantages over internal hard drives, such as portability, increased storage capacity, and ease of use. However, leaving data in the computer is not an advantage of external hard drives. In fact, external hard drives are designed to store data externally, away from the computer's internal storage, which helps free up space and improve the computer's performance.
External hard drives are a popular choice for users who need to store large amounts of data, such as documents, photos, music, and videos. They are available in various sizes and capacities, ranging from small and portable drives to large and high-capacity models. Here are some advantages of external hard drives over internal hard drives:
1. Portability: External hard drives are portable and can be easily carried around, making them ideal for users who need to access their data on the go.
2. Increased storage capacity: External hard drives offer greater storage capacity than most internal hard drives, which means users can store more data on a single device.
3. Ease of use: External hard drives are easy to set up and use, and can be connected to a computer via a USB cable or wireless connection.
4. Backup and data recovery: External hard drives can be used to create backups of important data, and can also be used for data recovery in case of a system failure or data loss.
5. Large audio and video files: External hard drives are ideal for storing large audio and video files, such as movies and music, which can take up a lot of space on a computer's internal hard drive.
In conclusion, while external hard drives offer several advantages over internal hard drives, leaving data in the computer is not one of them. External hard drives are designed to store data externally, away from the computer's internal storage, which helps free up space and improve the computer's performance.
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the part inside a networked device that attaches the device to the network is called a
The part inside a networked device that attaches the device to the network is called a network interface or network interface card (NIC). It is a hardware component that connects a computer or other networked device to a network.
The NIC provides the physical connection to the network media, such as a wired Ethernet cable or wireless radio waves. It also provides the necessary electronics to convert data between the digital signals used by the computer and the analog signals used by the network.
The NIC typically has a unique identifier, known as a MAC address, which is used to identify the device on the network. Most modern computers and devices come with built-in NICs, but they can also be added to a system using an expansion slot or a USB port.
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the ____ operation is performed by the subtract command in relational algebra.
The operation performed by the subtract command in relational algebra is called "set difference" or "set subtraction."
What is the set operationIn relational algebra, the subtract operation is used to retrieve tuples from one relation that do not exist in another relation. It returns all the tuples from the first relation that are not present in the second relation, based on a specified condition or attribute comparison.
The subtract operation is denoted by the symbol "-" or the keyword "MINUS" in some variations of relational algebra. It is similar to the set difference operation in set theory, where it finds the elements that belong to one set but not another.
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The DTE or endpoint device for a leased line is known as which device below? A) CSU/DSU B) cable modem C) DSL modem D) ISDN modem.
Option A) CSU/DSU. The DTE (Data Terminal Equipment) or endpoint device for a leased line is typically known as a CSU/DSU (Channel Service Unit/Data Service Unit).
A CSU/DSU is a specialized piece of equipment that connects a digital circuit to a customer's data terminal equipment. It is typically used in leased line applications to interface customer premises equipment (CPE) with the service provider's digital circuit.
The CSU/DSU is responsible for converting the digital data from the customer's equipment into a format that can be transmitted over the leased line, and vice versa. It also provides error detection and correction, as well as line conditioning and testing functions.
Therefore, option A) CSU/DSU is the correct answer to the question.
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Which of the following authentication protocols is based on a challenge/response mechanism? a. NTLM b. Kerberos c. TLS/SLS d. File Replication Service.
The authentication protocol based on a challenge/response mechanism is NTLM.
NTLM stands for NT LAN Manager and is a suite of Microsoft security protocols used for authentication. It works by sending a challenge to the client, which responds with a hashed version of the challenge using the user's password as the key. The server then verifies the response and grants access if the response is correct. Kerberos, on the other hand, is a ticket-based authentication protocol that uses a trusted third party to verify identities. TLS/SSL is a cryptographic protocol that provides secure communication over the internet. File Replication Service is a Microsoft technology that replicates files between servers.
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which of the following applications is more likely to justify the investment in Category 6 cable? a) e-mail b) instant messaging c) printing d) streaming video
Streaming video is more likely to justify the investment in Category 6 cable.
Category 6 cable is designed to support higher bandwidths and faster data transfer rates than previous generations of twisted pair copper cable. It is capable of supporting data transfer rates of up to 10 Gigabits per second (Gbps) over distances of up to 55 meters, making it suitable for high-bandwidth applications such as streaming video. In contrast, applications such as e-mail, instant messaging, and printing typically do not require high bandwidths or fast data transfer rates, and can be adequately supported by lower-grade cable such as Category 5e (Cat5e) or even Category 5 (Cat5) in some cases. Overall, the choice of cable depends on the specific needs of the network and the applications that will be run on it. However, if the network will be used for high-bandwidth applications such as streaming video, then Category 6 cable may be a worthwhile investment.
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which keywords are used to complete the deletion of a column previously marked with set unused?
In Oracle, the keywords used to complete the deletion of a column previously marked with SET UNUSED are DROP and COLUMNS. After a column is marked as unused, it is no longer visible to the users or applications, but it still occupies space in the database. To permanently remove the unused column and reclaim the space, the DROP COLUMNS command is used. The syntax for this command is as follows:
ALTER TABLE table_name
DROP UNUSED COLUMNS;This will permanently remove all columns that have been marked as unused in the specified table. It is important to note that once the columns are dropped, any data stored in them will be permanently lost, so it is recommended to backup the database before executing this command.
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