Answer:
The outbox stores all outgoing emails until the Email programs sends them to a recipient.A computer or phone's outbox is a folder where emails that are awaiting sending are kept
Explanation:
You are configuring cloud-based virtual networks without having to connect directly to the cloud provider hardware routers to configure VLANs. What enables this capability
Above the hardware that makes up network infrastructure, software-defined networking (SDN) adds a configuration layer that makes management easier and more standardized, such as through a web GUI or command-line tools.
Which approach involves processing data on network edge devices before moving it into and out of the cloud?In order to process data between data sources and a public cloud environment, such as a business on-premises network, fog computing, also known as edge computing, uses network edge devices.
What type of network security protocol allows for the encryption of all network traffic with just one configuration?Unlike application security protocols like HTTPS, which only apply to web servers and require each server to have a PKI certificate, IPSec can be configured to secure some or all network traffic using a single setup.
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Technician A says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. Technician B says that low coolant level will result in the water pump only heating the engine, not the inside of the car. Who is correct?
Technician A is correct. Technician A says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking.
What are the many forms of refrigerant?It typically comprises of pentafluoroethane and difluoromethane, two hydrofluorocarbon refrigerants. The refrigerant R-410A is regarded as non-ozone depleting. This refrigerant offers greater energy efficiency as compared to R-22 and R-407C. It is far more advantageous than R-22 and doesn't include chlorine.
What is the Meaning of refrigerant level?Simply explained, the refrigerant is also known as the life force or blood of your air conditioning system. Low concentrations of the same cause the system to wear down more quickly, requiring more energy to run and keep your home cool. This is because each cooling cycle needs enough refrigerant to absorb and transferring absorbing and transferring heat outside.
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Which of the following is NOT a task in preparation for installing an OS?
A) perform a low-level format on all disk drives
B) make sure the computer meets hardware requirements
C) ensure the hardware is working correctly
D) have an understanding of the features of the new OS
It is NOT a chore to be completed in advance of installing an OS to do a low-level format on each disk drive of the following.
Which of the following is not a function an operating system performs?The operating system's fundamental capabilities do not include job control. Data management, memory management, and job scheduling are all options. Operating systems facilitate network connectivity and user interaction with computers. Operating system capabilities do not include job control.
Understanding is crucial when getting ready to install an OS.It's crucial to know the kind of network environment an OS will be installed into before beginning the installation process. Two processes are loaded into memory on a cooperative multitasking system, and process 1 is currently active.
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A city government would like to make their streets more bike-friendly with features such as protected bike lanes. However, government officials are concerned about the effect on traffic flow. They hire a software consultant agency to develop a simulation of the traffic after the proposed changes.
What are the most likely benefits of creating a computer simulation of the proposal?
(Select two answers)
Pilihan jawaban
Once it is developed, the simulation can run at a faster speed than a real-life experiment.
The simulation can try the addition of even more bike lanes without incurring significant extra cost for each lane added.
As long as the software developers are not biased, the simulation will not include any bias for or against cyclists.
Since they are developing the simulation on a computer, it should be able to represent the proposed changes with 100% accuracy.
Once it is developed, the simulation can run at a faster speed than a real-life experiment and the simulation can try the addition of even more bike lanes without incurring significant extra cost for each lane added.
An explanation of procedural abstractionsWriting code portions, referred to as "procedures" or "static methods" in Java, that are generalized by having variable arguments is referred to as procedural abstraction. According on how its parameters are set when it is called, the concept is that we have code that can handle a range of various circumstances.
What advantages can procedural abstraction offer?Programmers are prevented from mistakenly stealing the ideas of other programmers thanks to procedural abstraction. People can read computer programs more easily thanks to procedural abstraction. The necessity for programmers to document their code is removed by procedural abstraction.
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A predetermined overhead rate includes: the actual total amount of the allocation base in the denominator.
A predetermined overhead rate includes the actual overhead costs by actual amount of the cost driver or allocation base.
A predetermined overhead rate is used to apply the projected production costs overhead to cost components for a specific reporting period.
The correct formula to compute the predetermined overhead rate is Predetermined overhead rate = Estimated total manufacturing overhead costs ÷ Estimated total units in the allocation base.
Interest rates are one of the main pillars of the American socioeconomic system. They affect borrowing costs, savings yields, and greatly contribute to the overall return on many different types of assets. Additionally, some interest rates provide insight about impending financial and economic activities.
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You ask one of your technicians to get the IPv6 address of a new Windows Server 2016 machine, and she hands you a note with FE80::0203:FFFF:FE11:2CD on it. What can you tell from this address?
This is a link-local address In EUI-64 format, you can see the MAC address of the node can tell from the address.
Link-local addresses are intended to be used for addressing a single link in situations without routers or for automatic address setup. It can also be used to interact with other nodes connected to the same link. An automatic link-local address is assigned.
In order to automatically configure IPv6 host addresses, we can use the EUI-64 (Extended Unique Identifier) technique. Using the MAC address of its interface, an IPv6 device will generate a unique 64-bit interface ID. A MAC address is 48 bits, whereas the interface ID is 64 bits.
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Match each word to its correct meaning. 1 . images displayed on the screen that enables the user to interact with the computer; abbreviated GUI central processing unit 2 . physical parts of a computer, such as the motherboard or hard disk file 3 . breaks in the action of a program using the operating system graphical user interface 4 . core program of a computer operating system hardware 5 . the chip than runs the basic operations of the computer; abbreviated CPU interrupts 6 . a collection of data, such as a program or document kernel 7 . format for storage of digital data memory
Images displayed on the screen that enables the user to interact with the computer; abbreviated GUI graphical user interface.
What are the names of the actual components of a computer?Hardware refers to a computer system's actual physical parts. It is a group of actual hardware components for a computer system. A computer chassis, monitor, keyboard, and mouse are included.
Physical parts of a computer, such as the hard disk file are Computer hardware .Breaks in the action of a program using the graphical user interface (GUI)Core program of a computer operating system .The chip than runs the basic operations of the computer;CPUA collection of data, such as Database.Format for storage of digital data memory are files, blocks, and objects.To learn more about graphical user interface refer to:
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Above all else, what must be protected to maintain the security and benefit of an asymmetric cryptographic solution, especially if it is widely used for digital certificates
To retain the security and benefit of an asymmetric cryptographic solution, especially if it is widely applied to digital certificates, the private key must be maintained.
Which of the subsequent algorithms is used for asymmetric encryption?Modern computers encrypt and decrypt messages using the RSA method. An asymmetric cryptography algorithm is used.
Asymmetric public key cryptography employs a total of one, two, three, or four keys?Asymmetric cryptography, sometimes called public-key cryptography, is a method for encrypting and decrypting messages and safeguarding them from unwanted access or use. It uses a pair of linked keys, a public key and a private key.
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which of the following consists of rules and standards that define how a database organizes data?
Answer: The rules and standards that define how a database organizes data are called the database schema. The schema specifies the structure of the database, including the names and data types of the fields in each table, as well as any relationships between tables. It provides a blueprint for how the data is stored and accessed, and it helps to ensure the integrity and consistency of the data within the database. The schema is typically defined using a specialized language or tool, and it can be modified as needed to reflect changes in the data or the needs of the users.
A large data mart might require a database administrator to design, construct, and maintain it.
True or False?
FALSE . The assertion made is untrue.
Why does keeping data in a single location help to assure data integrity?Data is kept in a single area using a centralized database, and changes can only be made there.As a result, this choice is right.
What does a data mart serve as?
The data mart is indeed a portion of a database system that is concentrated on a specific department, business unit, or topic matter.Data marts enable a designated group of users to quickly acquire crucial insights while wasting time looking through a large data warehouse by making particular data available to that group of users.
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lsa package is not signed as expected. this can cause unexpected behavior with credential guard.
The LSA provides heterogeneous credential management to connect to networks and databases that are not made by Microsoft.
What distinguishes credential guard from LSA protection?Only trustworthy, privileged programs and processes are permitted access to user secrets or credentials when Credential Guard is enabled. Windows keeps credentials in the Local Security Authority (LSA), a process running in memory, when Credential Guard is not activated.
Credential Guard: Does it safeguard LSA secrets?The operating system's LSA process communicates with a new component known as the isolated LSA process that stores and safeguards those secrets when Windows Defender Credential Guard is enabled.
Credential Guard: Is it required?At this time, it is not advised to enable Windows Defender Credential Guard on domain controllers. On domain controllers, Windows Defender Credential Guard can interfere with the compatibility of some applications without adding any additional protection.
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a rts frame is the first step of the two-way handshake before sending a data frame. true or false
It is accurate to say that sending an arts frame precedes sending a data frame in the two-way handshake.
What encryption method does the WPA2 wireless standard employ?The Advanced Encryption Standard (AES) employed by WPA2 is the same one that the US government employs to protect sensitive documents. The highest level of protection you can give your home WiFi network is this one.
What data integrity and encryption technique does WPA2 employ?The Advanced Encryption Standard (AES) encryption, combined with robust message authenticity and integrity checking, are the foundation of the WPA2 protocol, which offers substantially stronger privacy and integrity protection than WPA's RC4-based TKIP. "AES" and "AES-CCMP" are two examples of informal names.
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The ____ command is used to restore the table's contents to their previous values.
a. COMMIT; RESTORE;
b. COMMIT; BACKUP;
c. COMMIT; ROLLBACK;
d. ROLLBACK;
To return the table's contents to their previous values, use the ROLLBACK command.
How can I get data out of a table in SQL?To get data out of our tables, utilize the SELECT command in SQL. The output of this command is always a table, which we can use to develop dynamic web pages or desktop apps or to browse with our database client software.
How would the table row "WHERE" be deleted? Which command would be used?The DELETE command can be used to remove rows from a table. To delete individual rows or all rows from a table, use the DELETE command. Provide the table and an optional search condition (WHERE) that specifies which rows to delete in order to delete rows.
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To move a PivotChart to a new sheet, use the _____ ______ button in the Actions group on the Pivot Chart Tools Analyze tab
Use the Field List to reorder the fields in your PivotTable (pivot table), and when it vanishes, reveal the Field List once more.
What does Excel's move Chart command do?Click Move Chart under Chart Tools on the Design tab's Location group. Choose one of these: Click New sheet, then type a name for the worksheet in the New sheet box to move the chart to a new worksheet.
PivotTable toolbar button: what does it do?You may filter and organize data using the icon buttons on the PivotTable toolbar. reveals the PivotTable Settings dialog box, which offers options for the layout, format, totals, filers, display, and data. each field's data on a sheet is sorted.
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Read the following selection from the section "The North Atlantic Deep Water." As the warm surface water of the Mediterranean evaporates, the water grows saltier and denser. This water exits the Mediterranean through the Strait of Gibraltar, the narrow channel between Spain and Morocco that connects the sea to the Atlantic Ocean. Which answer choice is the BEST definition of the word "evaporates" as used in the selection?
The answer choice that is the BEST definition of the word "evaporates" as used in the selection is option (B) to lose moisture.
What is evaporation?The word "evaporates" as used in the selection means to lose moisture, which is the process of liquid changing into a gas or vapor form, typically due to an increase in temperature or pressure.
Evaporation is a physical process by which a liquid changes into a gaseous state, typically due to an increase in temperature or pressure. In this context, the warm surface water of the Mediterranean loses its moisture due to heat and it becomes saltier and denser, this process is called evaporation.
Therefore, In the above context, it refers to the warm surface water of the Mediterranean becoming a gas or vapor due to the process of evaporation.
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See full question below
Read the following selection from the section "The North Atlantic Deep Water. As the warm surface water of the Mediterranean evaporates, the water grows saltier and denser This water exits the Mediterranean through the Strait of Gibraltar, the narrow channel between Spain and Morocco that connects the sea to the Atlantic Ocean. Which answer choice is the BEST definition of the word "evaporates" as used in the selection? (A) to become saltier (B) to lose moisture (C) to condense (D) lo dissolve
NEC 422.16(B)(4) permits a range hood to be cord-and-plug connected. The receptacle would be installed ____ the range.
Receptacles A contact device fitted at an outlet for the connecting of an attachment plug is referred to as a "Receptacle" according to Article 100. The National Electrical Code frequently uses the words "receptacle" and "receptacles" (NEC).
What is the NEC code for outlets in the kitchen?Every counter that is 12 inches broad or wider is required by the NEC to have an outlet above it. Additionally, there must be a plug every 4 feet or more.
The number of outlets in a kitchenWe advise having at least eight twin sockets in kitchens between 12 and 25 square metres, and at least ten in rooms bigger than 25 square metres.
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what common security system is an idps most like? in what ways are these systems similar?
Answer:
An IDS (Intrusion Detection System) works like a burglar alarm in that it detects a violation of its configuration and activates an alarm. This alarm can be audible and/or visual, or it can be silent.
Explanation:
Write a static method named evenBeforeOdd that accepts an array of integers as a parameter and rearranges its elements so that all even values appear before all odds. For example, if the following array is passed to your method:
int[] numbers = {5, 2, 4, 9, 3, 6, 2, 1, 11, 1, 10, 4, 7, 3};
Then after the method has been called, one acceptable ordering of the elements would be:
{4, 2, 4, 10, 2, 6, 3, 1, 11, 1, 9, 5, 7, 3}
The exact order of the elements does not matter, so long as all even values appear before all odd values. For example, the following would also be an acceptable ordering:
{2, 2, 4, 4, 6, 10, 1, 1, 3, 3, 5, 7, 9, 11}
Do not make any assumptions about the length of the array or the range of values it might contain. For example, the array might contain no even elements or no odd elements. You may assume that the array is not null.
If the method is modeled after a bubble sort, expected output is:
[2, 4, 6, 2, 10, 4, 5, 9, 3, 1, 11, 1, 7, 3]
import java.util.*;
public class EvenBeforeOdd {
public static void main(String[] args) {
int[] numbers = {5, 2, 4, 9, 3, 6, 2, 1, 11, 1, 10, 4, 7, 3};
evenBeforeOdd(numbers);
System.out.println(Arrays.toString(numbers));
}
// *** Your method code goes here ***
} // End of EvenBeforeOdd class
We have a static method called before odd that, in accordance with the query, rearranges the elements of an array with integer once all even values come before all odds.
What sort of parameter would that be?To describe the total population under study, a parameter is utilized. For instance, we are interested in learning the typical wingspan of a butterfly. This information about the total butterfly population makes it a parameter.
import java.util.*;
public class EvenBeforeOdd {
public static void main(String[] args) {
int[] numbers = {5, 2, 4, 9, 3, 6, 2, 1, 11, 1, 10, 4, 7, 3};
evenBeforeOdd(numbers);
System.out.println(Arrays.toString(numbers));
}
// *** Your method code goes here ***
public static void evenBeforeOdd(int[] arr)
{
int start=0, end=arr.length-1;
while(start < end)
{
if(arr[start] % 2 == 0) // Even
{
start++;
}
else // Odd
{
int t = arr[start];
arr[start] = arr[end];
arr[end] = t;
end--;
}
}
}
} // End of EvenBeforeOdd class
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A user reports a laser jet printer is not printing properly. A technician prints a test page and notices the toner is smeared on the page. The technician confirms the toner cartridge is installed correctly and the paper in the tray is the right size. Which of the following printer components is the MOST likely cause of the problem
Fuser is the MOST likely cause of the problem. NCSoft and Harmonix have jointly produced the rhythm game Fuser.
What is Fuser?On December 19, 2022, Harmonix made the decision to end the game's online functionality. After this date, gamers will still be able to utilize all of their purchased material in the game's offline modes, but the game and all DLC will no longer be available for purchase.Inkjet printers cannot print as quickly as laser printers. Most can print more pages per time since they have high-capacity paper trays. Additionally, they are designed to withstand monthly printing of thousands of pages without experiencing wear and tear.The printer's fuser unit, which consists of two heated rollers, is what fuses the toner to the paper being printed on. In light of this, it is important to inspect the fuser if toner smears appear on the printed page after printing.The complete question is,
A user reports a laserjet printer is not printing properly. A technician prints a test page and notices the toner is smeared on the page. The technician confirms the toner cartridge is installed correctly and the paper in the tray is the right size. Which of the following printer components is the MOST likely cause of the problem?
A. Fuser
B. Roller
C. Memory
D. Toner
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what utility will help you move your data email applications and settings from your old Windows computer to
You can backup user account files and settings using the Windows Easy Transfer function. When you have a new computer, you can transfer those files and settings over.
How can I move my apps from my old computer to my new Windows 10 machine?direct file transfer using a USB device, You may attach an external hard drive to your old PC, copy your files to it, eject the device from the old computer, plug it into your new PC, and repeat the process.
What is the quickest method for moving files across computers?Using an external hard drive is the simplest method for transferring data from one PC to another.
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origin encountered an issue loading this page. please try reloading it – if that doesn’t work, restart the client or try again later. I have reinstalled it multiple times, but still have same issue. Any solution?
Try cleaning up your browser. Use CCleaner or Eusing's Cleaner if you're unclear of what to do next. Both may be downloaded for free and are easy to use.
Then why is it a browser?
Using application software known as browsers, one may see and interact with the content on the World Wide Web. This applies to videos, websites, and pictures.
What distinguishes a search engine from a browser?
Many newcomers to the internet mix up browsers with search engines. Just to be clear: A search engine is a website that aids users in locating online pages on other websites; a browser is a piece of software that retrieves and displays web pages.
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Why does the separation of the database systems and the programs that access them make an application programmer's job easier?
The definition of the database and how it stores the data are no longer matters to the coder.
Why is it easier for application programmers to do their jobs when database systems and the programs that access them are separated?Program-data independence describes this division. This separation makes it easier to create new applications since programmers can concentrate on writing the application logic (what the software will do) rather than on the location and method of storing and accessing the various data elements.
What features of a database management system are beneficial?By relieving users throughout the company of tedious and time-consuming data processing chores, a DBMS can enhance your data processes and raise the business value of your firm's data assets.
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What security measure is used to slow the movement of personnel when entering or leaving a secure area
When entering or exiting a secure area, mantrap security measures are utilized to slow down personnel movement.
What kind of physical security precautions are used to make portable gadgets more improbable to be stolen?In order to prevent theft, loss, and resale, portable equipment like laptops should be properly secured with a lock. The majority of desktop and laptop computers feature built-in slots that can be connected using a cable lock. Most computer stores carry these locks in their inventory.
Which security element is host- or network-based?Network-based or host-based IDS are both options. Network-based IDSs examine network, transport, and application protocols while keeping track of network traffic for specific network segments or devices in order to spot suspicious activities.
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origin encountered an issue loading this page. please try reloading it – if that doesn’t work, restart the client or try again later. I have reinstalled it multiple times, but still have same issue. Any solution?
Try to make your browser clean. CCleaner or Eusing's Cleaner should be used if you are unsure how to proceed. Both are simple to use and available for free download.
What exactly do the words "function" and "example" mean?
A function, which produces one response with one input, is an illustration of a rule. To get the image, Alex Federspiel was contacted. An illustration of this is the solution y=x2. About every x inputs, there's only unique y output. Considering because x is just the source value, we would state that y is a consequence of x.
What makes a function unique?
graphical representation of a thing's function
The graph is a function if any formed vertical line can only cross it once.
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Resolve "phpMyAdmin tried to connect to the MySQL server, and the server refused the connection. You should check the host, username and password in your configuration and make sure they match the information provided by the MySQL server administrator. in phpmyadmin
I just want to make sure you know that the root password for the device and the root password for the mysql service will be different. My suspicion is that the 'root'at the rate'localhost' MySQL account doesn't have a password.
Access prohibited in phpMyAdmin: How do I repair it?To do this, go to XAMPP Control Panel -> Select my.ini by clicking MySql Config. Skip-grant-tables must be written after [mysqld]. Launch the XAMP folder. PhpMyAdmin.
How can I use phpMyAdmin to connect to a MySQL server?Click "Admin" in the XAMPP UI or open your browser and navigate to localhost/PHPMyAdmin. Go to Change Admin password by clicking Edit Privileges, enter your password there, and then click Save. As this password will be required to access your database, keep it in mind.
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Which layer of the OSI model should you check first if a computer can't connect to the company network
Answer:
In any network, most of the problems occur at the physical, data-link, and network layers. Therefore, it is always advisable to start troubleshooting from the physical layer and gradually proceed to the application layer.
Explanation:
linus has created a virtual network on the cloud service provider his company uses. As part of the setup, it asked him to define a subnet mask, so he put in 255.255.252.0. How many usable IP addresses does that leave him to assign to virtual routers, virtual machines, and other hosts on that subnet
He has 1022 (1024 total, minus 2 for subnet ID and broadcast) useable IP addresses to distribute across hosts, virtual routers, and virtual machines on that subnet.
Which Azure service creates virtual machine instances?Through the Azure interface, one can build virtual machines (VMs) for Azure. This technique offers a browser-based user interface for creating VMs and the resources they need.
Which protocols enable safe remote access between a Windows machine and a Windows VM instance?A bastion host offers SSL-encrypted Remote Desktop Protocol (RDP) communication to your virtual machines (VMs) within the Azure portal. Your VMs do not require a public IP address when connecting via a bastion host.
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If you wanted to securely transfer files from your local machine to a web server, what file transfer protocol could you use?
1. FTP
2. TFTP
3.SFTP
4.NTP
SFTP is the file transfer protocol that encrypts data if you wanted to safely transfer files from your local system to a web server.
How does SFTP operate and what is it?
In order to offer a high level of security for transmitting and receiving file transfers, the Secure File Transfer Protocol, or SFTP, employs secure shell encryption. Similar to FTPS, SFTP secures data using AES and other techniques.
What distinguishes SFTP from FTP?
The "S" is the primary distinction between FTP and SFTP. A secure or encrypted file transfer protocol is SFTP. When using FTP, files are not encrypted when being sent or received. even if your connection is safe, the transmission
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Project stem 2.3 code practice question 2
Answer:
"Write a program that accepts two decimal numbers as input and outputs their sum."
a = float(input("Enter an integer: "))
b = float(input("Enter an integer: "))
print(a + b)
Explanation:
We are just entering an integer and having the code float the variable down to our print function thats why we have added the "float" variable
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Describe an implementation of the PositionalList methods add_last and add_before realized by using only methods in the set {is empty, first, last, prev, next, add after, and add first}.
provide output with driver code.
We shall employ Python programming output along with driver code, as stated in the statement.
What does a driver mean in computer language?In software, a driver offers a programming interface for managing and controlling particular lower-level interfaces that are frequently connected to a particular kind of hardware or other reduced function.
Briefing :class _DoublyLinkedBase:
class _Node:
__slots__ = '_element','_prev', '_next'
def __init__(self,element, prev, nxt):
self._element = element
self._prev = prev
self._next = nxt
def __init__(self):
self._header =self._Node(None, None, None)
self._trailer =self._Node(None, None, None)
self._header._next =self._trailer
self._trailer._prev =self._header
self._size =0
def __len__(self):
return self._size
def is_empty(self):
return self._size ==0
def _insert_between(self, e, predecessor,successor):
newest = self._Node(e,predecessor, successor)
predecessor._next =newest
successor._prev =newest
self._size += 1
return newest
def _delete_node(self, node):
predecessor =node._prev
successor =node._next
predecessor._next =successor
successor._prev =predecessor
self._size -= 1
element =node._element
node._prev = node._next= node._element = None
return element
class PositionalList(_DoublyLinkedBase):
class Position:
def __init__(self,container, node):
self._container = container
self._node = node
def element(self):
return self._node._element
def __eq__(self,other):
return type(other) is type(self) and other._Node isself._node
def __ne__(self,other):
return not (self == other)
def _validate(self, p):
if not isinstance(p,self.Position):
p must have the correct Position type, raise TypeError
if p._container is notself:
raise ValueError "p must not fit this container"
if p._node._next isNone:
raise ValueError('p is no longer valid')
return p._node
def _make_position(self, node):
if node is self._headeror node is self._trailer:
return None
else:
return self.Position(self, node)
def first(self):
returnself._make_position(self._header._next)
def last(self):
returnself._make_position(self._trailer._prev)
def before(self, p):
node =self._validate(p)
returnself._make_position(node._prev)
def after(self, p):
node =self._validate(p)
returnself._make_position(node._next)
def __iter__(self):
cursor =self.first()
while cursor is notNone:
yield cursor.element()
cursor =self.after(cursor)
def _insert_between(self, e, predecessor,successor):
node =super()._insert_between(e, predecessor, successor)
returnself._make_position(node)
def add_first(self, e):
returnself._insert_between(e, self._header, self._header._next)
def add_last(self, e):
returnself._insert_between(e, self._trailer._prev, self._trailer)
def add_before(self, p, e):
original =self._validate(p)
returnself._insert_between(e, original._prev, original)
def add_after(self, p, e):
original =self._validate(p)
returnself._insert_between(e, original, original._next)
def delete(self, p):
original =self._validate(p)
returnself._delete_node(original)
def replace(self, p, e):
original =self._validate(p)
old_value =original._element
original._element =e
return old_value
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