A reference variable contains the data of an object it refers to, a reference declaration and object creation can be combined in a single statement, but multiple references can refer to the same object.
It is accurate to say that a reference variable holds data as opposed to a memory location. A reference in C++ is an alias for an object, and when you declare a reference, you are declaring a new name for an existing object, rather than creating a new object. The reference acts as an alternative name for the object, and accessing the reference is the same as accessing the original object. So, when you use a reference, you are accessing the data stored in the referenced object, not the memory address of the object.
It is untrue to say that "the new operator is used to declare a reference." The new operator is used to dynamically allocate memory for an object and return a pointer to the newly created object. It is not used to declare a reference.
It is true that you can combine the creation of an object and a reference declaration in a single statement. When you declare a reference, you must initialize it with an existing object, and you can do this by declaring the reference and creating the object in the same statement. For example:
int &x = *(new int(10));
In this example, a new integer object with the value 10 is created using the new operator, and a reference x is declared and initialized to the new object.
It is untrue to say that three references cannot all refer to the same item. It is possible for multiple references to refer to the same object. When you declare multiple references to the same object, they are all alternative names for the same data, and changing the value through one reference will change the value for all references that refer to the same object.
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consider operating a fcar as part of a computatiopnal program. using a key to start a car is a form of:
Answer:
function or method
Explanation:
In programming, the distinction between methods (functions) and objects can be made in the context of object-oriented programming (OOP).
An object is an instance of a class, which defines a blueprint for creating objects. Objects have attributes (data) and behavior (methods). The attributes represent the object's state, and the methods represent the operations that can be performed on the object. An object can be thought of as a unit of data and functionality.
A method is a function that is associated with an object. It can access and modify the object's attributes, and perform other operations on the object. Methods are used to interact with objects and to implement the behavior of an object.
So, in OOP, objects are instances of classes, and methods are functions that operate on objects. Methods allow objects to interact with each other and with the environment in which they exist, and they provide a way to encapsulate and reuse code.
car key = object
start the car = function or method
in the domain name space, what a server is responsible for or has authority over is called a .
In the domain name space, a server is responsible for or has authority over a "zone".
A zone is a portion of the domain name space for which a server has the authority to provide information and manage name resolution. The server acts as the authoritative source for information about the zone, including the mapping of domain names to IP addresses. The zone file contains all of the information about the zone and is maintained by the server administrator. The information in the zone file is used by name servers to answer queries from clients. The process of dividing the domain name space into zones and assigning authority to specific servers is called "zone delegation".To know more about domain visit:
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why is the following query not valid as a natural join? select customer.first name, customer.last name, employee.first name, employee.last name from customer natural join employee;
The query is not valid as a natural join because the two tables, Customer and Employee, do not have any columns in common that could be used for a natural join.
What is the columns ?A column is a vertical structure that is used to support a structure or hold objects, like a pillar in a building. It can also refer to aA column is a vertical structural element in architecture and construction. It is used to support beams or arches on load-bearing walls, or to provide an ornamental feature. Columns are typically circular, square, or polygonal in shape, and can be constructed from a variety of materials such as stone, brick, concrete, metal, and wood. Columns can also be used to support ceilings, roofs, and other architectural features. Columns are commonly used in the design of bridges, temples, and other large-scale structures, and can be found in both interior and exterior spaces.
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in a tabular form draw up the list of people that invented the different types of computers to date
The answer for the given question is In tabular form differentiate between the first four generation of computers
what is computer?A computer is a device that may be configured to automatically perform series of fine or logical operations( calculation). ultramodern digital electronic computers are able of running programs, which are generalized sets of operations. These apps give computers the capability to carry out a variety of tasks. A computer system is a minimally functional computer that contains the supplemental bias, operating system( primary software), and tackle needed for proper operation. This expression may also apply to a collection of connected computers that work as a unit, similar as a computer network or computer cluster. The sole purpose of early computers was to perform calculations. Since ancient times, simple homemade tools like the abacus have supported humans in performing calculations.
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to sort the records that are retrieved by a select statement in descending sequence what keyword do you code at the end of the order by clause?
To sort the records that are retrieved by a select statement in descending sequence we will use the DESC keyword to code at the end of the order by clause.
Though, The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, the keyword used is DESC.
The following SQL statement selects all the columns from the "Class" table, sorted descending by the "Name" column:
SELECT * FROM Class
ORDER BY Name DESC;
Another example can be:
SELECT * FROM Employee
ORDER BY Employee_Name DESC;
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To sort the records that are retrieved by a select statement in descending sequence what keyword do you code at the end of the order by clause?
a. ALL
b. DISTINCT
c. DESC
d. ASC
Short response!!
Explain what PuTTY is and why it is used.
Answer:
PuTTY is a free and open-source terminal emulator and SSH client used for connecting to a remote computer and executing commands in a command-line interface. It is commonly used for remotely accessing servers, running command-line tools, and for configuring network devices.
true or false: sas executes one step at a time, statement by statement, independently of one another.
SAS carries through each step, each statement at a time, independently of the others. Some other programming languages compile and run the full program all at once.
Which of the following about BY-group processing when the SET and BY statements are used is untrue?It is necessary to index or sort the data sets listed in the SET statement using the values of the BY variable (s).
What are the two principal categories of SAS steps?SAS programs consist of two steps: the data step and the proc step. A SAS dataset is read into during the data phase, and is then analyzed during the proc step. A word on SAS names: Your SAS datasets and variables will have names that you come up with.
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Compare and contrast iOS in a short essay and explain which one is better. Also, write the significant points as bullet points.
Do not troll; wrong answers will be deleted and reported.
The best answer will be marked brainliest!
Android is a more open operating system than iOS. In iOS, users hardly have any system permissions, whereas, in Android, users may easily modify their phones. There is Android software for numerous brands, like Samsung, LG, etc.
What is the system?A system is a group of moving or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its situation, is described by its boundaries.
The advantages of the IOS are considered as.
iOS By using it they were provided with the best interface and understanding.iOS is a most secure operating system than any other.the iOS operating system is best for Businesses and Professionals.Therefore, As a result, IOS devices are very much significant and useful. There are different features are there in it.
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the gulf stream question 39 options: moves equatorward, warming the california coast. moves southward and moderates temperatures in eastern south america. moves northward in the western atlantic, moderating temperatures in iceland. creates a warming effect on japan and the aleutians.
By dispersing heat energy, the direction, speed, and temperature of the water masses swept along by ocean currents are significant factors in climatology.
What are the Gulf Stream's location and flow characteristics?
The Gulf Stream is a warm ocean stream that travels from the Gulf of Mexico to the British Isles via the northeastern coast of the United States. The British Isles' climate pattern is significantly impacted by the Gulf Stream.
What is the path of the Gulf Stream?
In the western North Atlantic Ocean, there is a strong, warm ocean stream called the Gulf Stream. It flows northeast over the Atlantic as it travels north along Florida's coast before turning east off of North Carolina.
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which term best describes malicious programmatic behaviors that antivirus software companies use to compare known viruses to every file on a computer?
The term "heuristics" best characterizes the dangerous programmed behaviors that antivirus software providers use to compare known viruses to each and every file on a computer.
What kind of harmful computer programs pose as legitimate software or applications?A Trojan poses as desirable software or code. The Trojan can take over victims' PCs for harmful reasons after being downloaded by unwary users.
Which sort of security is particularly focused on computers or other network-connected devices?Cybersecurity is the defense against cyberthreats of systems connected to the internet, including hardware, software, and data. Individuals and businesses utilize the technique to prevent illegal access to data centers and other digital systems.
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vram is a type of . group of answer choices graphics processing unit interface bus for volatile memory dynamic computer memory used for video static video controller
The picture and video data that a computer displays is stored in a high-speed array of dynamic random access memory (DRAM), known as video random access memory (VRAM) or video RAM.
VRAM is a form of memory, right?Any sort of random access memory (RAM) that is used to particularly store picture data for a computer display is known as VRAM (video RAM). VRAM is used to make sure that graphics display is executed consistently and without hiccups.
In a computer, what is VRAM?(1) A general term for the memory on a graphics card is "video RAM." Check out GDDR, WRAM, and MDRAM. (2) A dual-ported memory type that houses the graphics card's frame buffer. VRAM allows for the simultaneous writing of new data while displaying existing data.
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How to calculate the the volume and surface area of cylinder in python
Answer:
To calculate the volume and surface area of a cylinder in Python, you can use the following code:
#Calculate the volume
volume = 3.14 * radius * radius * height
#Calculate the surface area
surface_area = 2 * 3.14 * radius * (radius + height)
an attribute is a characteristic or property of an entity. if person is an entity, would the same attributes be used to describe a person in different databases that store medical, student, and fitness club data? why or why not?
Yes, if a person is an entity, you might store information like their medical history, academic record and membership in a fitness centre as properties of that person.
What does an attribute in a database mean?An attribute in a database management system (DBMS) is a piece of information that describes an entity. The properties in a client database, for instance, might be name, address, and phone number.
What distinguishes an attribute database from an entity database?A database management system's two key concepts are entity and attributes (DBMS). The key distinction between an entity and an attribute is that an entity is a real-world object, whereas an attribute describes the properties of an entity. The Entity may be physical or abstract.
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Convert then type in exactly the binary value 1110 0011 into hexadecimal.
To convert binary value 1110 0011 into hexadecimal, we will use a method of dividing the binary number into groups of 4 bits and converting each group into its corresponding hexadecimal value which is equal to E3.
What is Binary Value?
Binary value is a system of representing information using only two symbols, typically 0 and 1, called bits. In the binary system, each bit has a value of either 0 or 1 and multiple bits can be combined to represent more complex information.
The binary system is used in computers, digital circuits, and other electronic devices to store and process information. In binary value, each digit represents a power of 2, so the rightmost digit represents 2^0, the second digit from the right represents 2^1, and so on. The binary value of a number is determined by adding up the values of each digit in the number.
To convert binary value 1110 0011 into hexadecimal, we will use a method of dividing the binary number into groups of 4 bits and converting each group into its corresponding hexadecimal value.
Step 1: Divide the binary number into groups of 4 bits.
1110 0011
Step 2: Convert each group of 4 bits into its corresponding hexadecimal value.
1110 = E
0011 = 3
Step 3: Combine the hexadecimal values.
E3
Therefore, the binary value 1110 0011 converted into hexadecimal is E3.
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Which network has the longest life for a piece of content?
The life of a piece of content on a network can vary greatly and it is difficult to determine a clear winner as the longest-lasting network for content.
It is difficult to determine which network has the longest life for a piece of content as it depends on various factors such as the type of content, the network's policies and algorithms, and the audience's engagement with the content. Generally, social media networks such as have algorithms that prioritize recent and popular content, causing older posts to eventually become buried in a user's feed. This results in a relatively short life for a piece of content on these platforms.
In contrast, certain websites and forums that are dedicated to specific topics often have a longer life for content as they serve as archives and resources for information on those topics. For example, articles on Wikipedia or discussions on forums such as Reddit can remain accessible and relevant for years. However, it is important to note that content on any network can be deleted or taken down due to various reasons such as violating the network's terms of service, or due to technical issues.
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you want to see the filesystems that are presently in use on the system. what command could you use?
You can use the df command to see the file systems that are currently in use on the system. The df command displays the amount of disk space available on the file system containing each file name argument.
What is df command?
The df command is a useful tool for system administrators and users to check the utilization of disk space on a system. By default, df shows information about the available disk space and the space used by each file system in kilobytes.
The -h option makes the output more readable by using units such as MB and GB, making it easier to understand how much disk space is being used. The output of the df command shows the file system, total size, used space, available space, and the percentage of disk space used for each file system on the system.
Here's an example of how to use the df command:
df -h
The -h option is used to display the sizes in "human-readable" format (i.e., using units of KB, MB, GB, etc.).
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which amazon ec2 feature ensures that your instances will not share a physical host with instances from any other aws customer?
The Amazon EC2 feature that ensures instances will not share a physical host with instances from any other AWS customer is called Amazon EC2 Dedicated Hosts.
Amazon EC2 Dedicated Hosts are physical servers with AWS infrastructure that are dedicated to one AWS customer. This means that when you launch instances on a Dedicated Host, you have the entire physical server to yourself, and your instances are isolated from instances of other AWS customers. This provides you with additional visibility and control over the placement of your instances, and can be useful in certain regulatory and compliance scenarios where instances must be physically isolated. Additionally, because you have control over the physical server, you can choose to use your own licenses for applications and ensure that your instances are running on the specific hardware you require.
With Amazon EC2 Dedicated Hosts, you have the ability to use your own custom licensing, and you have complete control over the placement of instances on the host, which helps ensure that your instances run on the hardware you want, and helps you meet compliance and regulatory requirements.
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A formula is a symbolic expression that can include. A)numbers b)cell address c)arithmetic operators and parenthesis d)all of these
The first option is the one that is correct since the combination of numbers, symbols, and operations reveals a certain value.
A polynomial is a systematic collection of variables and constants with "n" powers arranged in either ascending or descending order. If a polynomial has a non-negative exponential and the square root of its variables, it can be an expression. A combination of numbers, symbols, and operations is known as an expression, and it also conveys a specific value. Several instances of expression y = 6x+7 As a result, the first option is right since the combination of numbers, symbols, and operations reveals a particular value. My investigation on Microsoft Excel has led me to the conclusion that, based on the details in the query, the cell references and arithmetic operators in this case appear at the top in the area known as the formula bar.
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what computers are not nearly as powerful as super computers but are capable of great proccessing speeds
Desktop computers are not nearly as powerful as super computers but can be capable of great processing speeds. Laptops have similar power capabilities as desktops, but are far more portable.
What is the capable ?Capable is having the ability to do something. It is the power or ability to do the job, task, or activity. It refers to having the skills, knowledge, or ry tools and resources to achieve a desired outcome. Capable people are those who have the capacity to do something and are willing to take action to make it happen.resources to accomplish something. Being capable is having the capacity to do something or to be able to achieve a certain goal. It is having the potential to do something and being able to act on it. It implies being competent, reliable, and competent in a certain area. It means being equipped with the necessa.
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which windows enhancement was designed specifically to prevent delays in delivery of data in iscsi applications and create a lossless environment?
The windows enhancement was designed specifically to prevent delays in delivery of data in iscsi applications and create a lossless environment is Data center bridging
What is Data center bridging?Data Center Bridging (DCB) is a set of standards and technologies for enhancing Ethernet networks in data centers. It is designed to provide a lossless and low-latency network environment for converged network traffic, such as iSCSI storage traffic, Fibre Channel over Ethernet (FCoE), and other converged data center traffic.
Therefore, the DCB provides the reliability and performance required for storage and other converged applications by prioritizing different types of network traffic and ensuring that the most critical traffic, such as storage traffic, is delivered without delay or loss.
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Why do you need to look out for others' safety as well as your own in the metaverse?
In the metaverse, just like in the real world, it's important to consider the safety and well-being of others as well as your own for several reasons:
Respect for others - The metaverse is a shared digital space, and it's essential to show respect for others and maintain a safe environment for all users.Legal and ethical considerations - Certain activities in the metaverse, such as harassment or theft, may be illegal or unethical and can have consequencesWhat is the Metaverse?The metaverse is a computer industry concept of the next version of the internet: a single, shared, immersive, permanent, 3D virtual place where humans may experience life in ways they cannot in the physical world.
The word metaverse is coined by American sci-fi writer Neal Stephenson in his book Snow Crash, which describes a dismal future society in which affluent individuals escape into an other 3D, networked reality.
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how does a supercomputer differ from a mainframe computer?10. describe three types of multicomputer configurations. what are their comparative advan-tages and disadvantages?
Although transactional behemoths, mainframes are terrible at floating point calculations. Supercomputers are giants when it comes to floating point, but they are not very useful for transactions.
How do supercomputers and mainframe computers vary from one another?Both kinds of computers can carry out various functions. Supercomputers primarily concentrate on providing quicker computing for potentially complicated mathematical calculations. On the other hand, the mainframe computer functions as a server. It supports big DBs, facilitates multiprogramming, and has numerous I/O devices (databases).
What are the three different configurations for multiple computers?Cluster, blade, and grid are the three different forms of multicomputer configurations. A group of comparable or identical computers is referred to as a cluster. Although they are very scalable, they are difficult to administer and configure.
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a(n) exists between two entities when each row in the first entity may match many rows in the second entity, and each row in the second entity matches only one row in the first entity?
Each instance of an entity in the second table can only be linked to one instance of an entity in the first table since the opposite connection does not exist.
Each unique entry that appears in a table is sometimes referred to as a row of data.?
Each unique entry in a table is referred to as a record, sometimes known as a row. For instance, the Customers table shown above contains 91 records. A track is a horizontal entity in a table. In a table, a column is a vertical entity that houses all the data pertaining to a single field.
What is an entity, also known as a row record, in a relational table?
A row or record may consequently be alluded to as a "tuple." THE PANEL A field, which is sometimes known as an attribute, appears in tables.
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Interference is a common problem with _____ devices.
Interference is a common problem with wireless devices.
Wireless devices such as Wi-Fi routers, Bluetooth devices, and cell phones use radio frequency signals to transmit data and communicate with other devices. These signals can sometimes interfere with each other, leading to reduced signal quality, slower speeds, and dropped connections. Interference can also be caused by other sources, such as household appliances and other electronic devices that use similar frequencies. To minimize interference, it is recommended to keep wireless devices away from other electronic devices and to use channels with less interference on a Wi-Fi network.
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locate another university with an erm program other than the list provided in the book or other colleges discussed in the chapter. identify and explain at least one difference with and similarity to the uw program.
"Perdue University is a private research university in the United States. ERM was implemented at both schools using a committee approach. Perdue, like the University of Washington, considers the environment and emphasizes the importance of integrity in its goal."
However, while cultures can differ from one school to the next, it should come as no surprise that integrity is of the utmost significance on both campuses. However, while Perdue refers to board members, employees, and others as decision makers, it makes no mention of including students, whereas the University of Washington included two students on its committee. The presence of a few students may be advantageous to the Perdue committee since it provides extra knowledge that may be important in determining other dangers that have not been taken into consideration previously.
What is a ERM Program?
Enterprise risk management (ERM) is a concept that looks at risk management strategically from the perspective of the entire business or organisation. The objective of this top-down strategy is to identify, assess, and prepare for potential losses, dangers, hazards, and other potential sources of harm that could hinder an organization's operations and goals and/or lead to losses.
Enterprise risk management calls for management-level decisions that may not be appropriate for all business units or market sectors when using a comprehensive approach. As a result, corporate oversight takes precedence over the accountability of each business unit for its own risk management.
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when all of a company’s job cost sheets are viewed collectively they form what is known as a ________.
When all of a company's job cost sheets are viewed collectively they form is known as a subsidiary ledger.
Option D is correct.
What is the name of the document used to accumulate a job's costs?The most crucial document for job costing is the job cost sheet. In order to figure out the total costs of the job, they compile a summary of all of the most important information about it and add up the total direct costs of materials, direct labor, and applied overhead costs.
Subsidiary ledger :A group of similar accounts in a subsidiary ledger have balances that are equal to those in a single general ledger account. A control account or master account is the general ledger account that summarizes the account balances of a subsidiary ledger.
Incomplete question :
When all of a company's job cost sheets are viewed collectively they form what is known as a ________.
A.general ledger
B.inventory
C.job-order costing system
D.subsidiary ledger
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What statement describes a characteristic of MAC addresses?
They must be globally unique.
They are only routable within the private network.
They are added as part of a Layer 3 PDU.
They have a 32-bit binary value.
The correct statement is "They must be globally unique.
What is globally unique?A globally unique identifier (GUID) is a 128-bit number used to identify information in computer systems. The term globally unique means that the GUID is universally unique, meaning that it is a one-of-a-kind identifier that will never be repeated anywhere else in the world. GUIDs are used to identify objects in computer systems such as websites, databases, applications, and files, and they allow data and objects to be shared and tracked across multiple systems.
Explanation: Media Access Control (MAC) addresses are unique identifiers for network interfaces. Every network interface, such as a network card, has a unique MAC address that must be globally unique in order for the interface to function correctly.
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True or False?The logical value TRUE is treated the same as the text string "TRUE".
The statement is true because: The logical value TRUE is treated the same as the text string "TRUE" in most programming languages, including Java, C, and C++.
Also TRUE is often represented as a numerical value (1) and FALSE is represented as a numerical value (0) in code and many programming languages treat TRUE and FALSE interchangeably.
The logical value TRUE is a value indicating the relation of a proposition to truth. In logic and mathematics, TRUE is a statement that is considered to be true, and FALSE is a statement that is considered to be false. In computer science, TRUE and FALSE are boolean values, which are data types that have one of two possible values.
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the property by which subtype entities possess the values of all attributes of a supertype is called:
A subtype's ability to inherit the values of all a supertype's attributes is known as attribute inheritance.
What property must each subtype derive from its supertype?All entity subtypes inherit their primary key property from their supertype, which is a significant inheritance trait. An attribute is a variable trait or characteristic of a program's component that can be modified to a variety of values in computers and computer programming.
What is the name of the Supertype attribute that determines an instance's subtype S?The attribute of the supertype entity that is utilised to determine which entity subtype the supertype occurrence is associated to is known as a subtype discriminator.
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where is information regarding the number of inodes and data blocks available, as well as their sizes, stored?
Superblock information regarding the number of nodes and data blocks available, as well as their sizes, stored. In this case option BA is correct.
A superblock is a group of metadata that some types of operating systems use to display the characteristics of file systems. The superblock, along with inode, entry, and file, is one of a few tools used to describe a file system.
The superblock essentially keeps track of the properties of a file system, including the block size, additional block properties, sizes of block groups, and the location of inode tables. In UNIX and other operating systems where a root directory contains a variety of subdirectories, the superblock is especially helpful.
Apart from the name and content of the file, the inode stores other file metadata. When the array is initialized for the first time, a 4K block of data known as the superblock is written to the member disks. The RAID superblock has information about the array in it.
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Where is information regarding the number of inodes and data blocks available, as well as their sizes, stored?
block table
superblock
first empty sector of the partition
inode table