The feed-mix problem from agricultural applications is a special case of the more general Diet problem.
What are Diet Problem?
The goal of the diet problem is to choose a set of foods that will meet a set of daily nutritional requirements at the lowest possible cost. The problem is written as a linear program with the goal of minimizing costs and the constraints of meeting the specified nutritional requirements.
Dietary constraints typically govern the number of calories as well as the amount of vitamins, minerals, fats, sodium, and cholesterol consumed. While the mathematical formulation is straightforward, the solution may not be appealing! Nutritional needs can be met without regard for taste or variety, so think about the outcome before diving into a meal from an "optimal" menu!
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what do you need to consider prior to the administration of warfarin (coumadin) keeping in mind there is an iv heparin infusion running at 15 units/kg/hr.
You need to calculate the International Normalized Ratio (INR) of patients prior to the administration of Warfarin (Coumadin).
Warfarin is a prescription medication that interferes with normal blood clotting (coagulation). In some countries, Warfarin is sold under the brand name Coumadin. Warfarin is prescribed to those people who are at increased risk of developing harmful blood clots. Before the prescription of Warfarin, the blood test, known as prothrombin time, is used to calculate International Normalized Ratio (INR). INR helps the healthcare provider to determine how well Warfarin is working to prevent blood clots and whether the dose needs to be adjusted.
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exercise 4. (problem: finding two points nearest to each other) objective: write a program thatfinds two points in plane with minimum distance between them. here is a test case for the input:
To find two points in place with minimum distance between there here is a test case for the input return Math.sqrt(Math.pow((p1.getX() - p2.getX()), 2)+Math.pow((p1.getY() - p2.getY()), 2));
//Java program
import java.util.Scanner;
class Point{
private double x,y;
public Point() {
x=0.0;
y=0.0;
}
public Point(double _x , double _y) {
x=_x;
y=_y;
}
public double getX() {
return x;
}
public double getY() {
return y;
}
}
public class Nearest {
public static void main(String args[]) {
int count;
Scanner in = new Scanner(System.in);
System.out.print("Enter number of points : ");
count = in.nextInt();
Point point[] = new Point[count];
Point p1=point[0],p2=point[0];
double x,y;
double min = Double.MAX_VALUE;
double dist=0.0;
System.out.println("Enter points");
for(int i=0;i<count;i++) {
System.out.print("Enter x : ");
x = in.nextDouble();
System.out.print("Enter y : ");
y = in.nextDouble();
point[i] = new Point(x,y);
}
for(int i=0;i<count;i++) {
for(int j=i+1;j<count;j++) {
dist = distance(point[i],point[j]);
if(dist<min) {
p1=point[i];
p2 = point[j];
min=dist;
}
}
}
System.out.println("Point with minimum distance \n");
System.out.println("point1 x: "+p1.getX()+" y : "+p1.getY());
System.out.println("point2 x: "+p2.getX()+" y : "+p2.getY());
in.close();
}
public static double distance(Point p1 ,Point p2) {
return Math.sqrt(Math.pow((p1.getX() - p2.getX()), 2)+Math.pow((p1.getY() - p2.getY()), 2));
}
}
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Assume you have two lists named list1 and list2 that are of the same length. Create a dictionary in which the elements of list1 are the keys and the elements of list2 are the values. For example, the dictionary will have:an element in which list1[0] is the key and list2[0] is the value,an element in which list1[1] is the key and list2[1] is the value, and so on.
The solution to the above prompt with regard to the list named are:
A) dict1 = dict([(list1[i], list2[i]) for i in range(len(list1))])
B) dict1 = {}
for i in range(len(list1)) :
[Tab Key]dict1[list1[i]] = list2[i]
C)
dict1 = dict([(list1[i], list2[i]) for i in range(len(list2))])
What is a list in programming?A list or sequence is an abstract data type in computer science that contains a finite number of ordered items, where a given value may appear more than once.
The usage of lists is another programming method that will be helpful to our algorithm development because many algorithms need the manipulation of sets of data. Similar to a variable, a list—also known as an array—is a tool for data storage.
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which of the following attacks involves modifying the ip packet header and source address to make it look like they are coming from a trusted source?
In a spoofing attack, the source address of the information is changed to make it appear as though it is coming from someone else.
What is spoofing?In order to trick the receiving computer system into believing the packet is coming from a reliable source.
Refactoring is another name for spoofing such as another computer on a valid network, and accepting it, modifying the IP packet header and source address.
An IP spoofing attack employs tools to change the source address in the packet header.
Therefore, spoofing attack, the source address of the information is changed to make it appear as though it is coming from someone else.
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Timothy works in the graphic arts department and has received approval to upgrade his video card. The card has arrived, and you are ready to begin the upgrade. To ensure your personal safety, which of the following should you do first.
Before handling any internal components, disconnect the computer and take the necessary anti-static procedures to safeguard your personal safety.
Regarding graphics
In order to inform, clarify, or amuse, graphics are graphic images or designs on a surface, including a wall, canvas, computer, newspaper, or stone. In modern usage, it refers to a visual visualization of data, such as that used in software for education and entertainment, design and manufacturing, typesetting, and the graphic arts. Computer graphics refers to images created by a computer. Graphics can be aesthetic or useful. The line between the two may become hazy if the latter is a documented form, such as a picture, or an analysis by a scientist to emphasize key characteristics.
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under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on?
Two circumstances that will switch flood frames from every port except the port on which the frame was received:
The frame has a broadcast address as the destination address. The destination address is not known by the switch.The switch will transfer the frames from the port the frames have been acquired on (where Host A is connected) to the port wherein the router is attached. Kind of visitors will a transfer flood out all ports are broadcast and multicast forwarding. Since broadcast packets should be received by all stations at the network, the switch will reap that goal by flooding broadcast packets out all ports besides the port that it was received on, since there's no need to send the packet back to the originating device. Because a switch by no means learns those addresses, it constantly floods the frames that have those addresses because a transfer by no means learns those addresses, it always floods the frames that have those addresses as the destination address.
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Which of the following is true regarding switched backbones?
Answers:
A. They place all network devices for one part of the building physically in the same room, often in a rack of equipment
B. They have an advantage of requiring less cable
C. They make it more difficult to move computers from one LAN to another
D. Network capacity is always tied to the physical location of the computers
E. They are harder to maintain and upgrade than a BN that is not rack-based
They place all network devices for one part of the building physically in the same room, often in a rack of equipment.
What is switched network?A computer network that uses only network switches, as opposed to Ethernet hubs on Ethernet networks, is referred to as a fully switched network.Switched Backbones are used in new construction, in the distribution layer, and occasionally in the core layer. They can be rack- or chassis-based. the numerous routers of other designs are replaced Backbone has fewer devices but more cables.Rack-Based Exchanged Backbones puts all network switch hardware in a single "rack" room. simple to upgrade and maintain. requires more cable, though this is typically a minor portion of the cost.switchable backbones based on a chassis Instead of using a rack, use a chassis switch that allows administrators to plug modules into it.To learn more about switched network refer :
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A network technician has been tasked with designing a WLAN for a small office. One of the requirements of this design is that it is capable of supporting HD video streaming to multiple devices.
Which of the following would be the appropriate wireless technology for this design?
A. 802.11g
B. 802.11ac
C. 802.11b
D. 802.11a
bookmark question for later a map of a database that shows tables and relationships is called what? erp erm relational mapping form schema
A map of a database that shows tables and relationships is called Schema.
What is database?A database is a structured collection of related data that has been systematically organized and is kept in a way that makes it simple to manage and update. It serves as the central repository for all data, comparable to a library's collection of books spanning a variety of genres. Imagine data as a library.
The data can be set up in a database in the form of a table with rows and columns. The data can be easily located and retrieved whenever necessary by indexing it. With the aid of databases, a large number of websites on the Internet are operated. Database handlers are used to build databases that allow users to access the data using just one set of software applications.
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Assume you are an IT manager for a small- to medium-sized company. You are currently working on a new website and need someone to help develop your website. You need to place an ad for the position. Without listing the specific skills, state a name for the position and the minimum requirements for the position. Defend your answer with reasons why these are necessary minimum requirements.
Since You need to place an ad for the position. The position is Ad specialist, and the specific skills, is to have a good knowledge of marketing and ad making. The minimum requirements for the position is a BSC in advertising and media production or in marketing'
Who is a marketing expert?Creative concepts are transformed into advertising campaigns by advertising pros. They could specialize in advertising mediums like print, radio, television, and digital.
The daily management of paid digital marketing initiatives, including paid search, display, and social advertising strategies for B2B and B2C organization, is the responsibility of paid media specialists.
Most jobs are full-time or more. Sales representatives for advertising frequently put in extra hours. This profession has a dismal employment prognosis. The U.S. Bureau of Labor Statistics predicts a drop in employment through 2024.
Hence, People can prove they are experts in internet advertising by showing they have a Go ogle Ads certification and others.
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Enter a function in cell H12 based on the payment and loan details that calculates the amount of cumulative principal paid on the first payment. Be sure to use the appropriate absolute, relative, or mixed cell references. All results should be formatted as positive numbers. Enter a reference to the remaining balance of payment 1 in cell B13. Use the fill handle to copy the functions created in the prior steps down to complete the amortization table. Expand the width of columns D:H as needed.
It is to be noted that what Microsoft Excel is to calculate here is "Cumulative Principal" The formula for doing this for the first payment is given as =CUMPRINC(rate, nper, pv, start_period, end_period, type).
How will the above be used to achieve the given prompt?The formula for calculating the cumulative principal paid on the first payment is as follows:
=CUMPRINC(B5/12,B6,B4,1,1,0)
To enter this formula into cell H12, type "=CUMPRINC(B5/12,B6,B4,1,1,0)" without the quotation marks.
To reference the remaining balance of payment 1 in cell B13, type "=B12-H12" without quotation marks.
To use the fill handle to copy the functions down to complete the amortization table, select cells H12 and B13, then hover the cursor over the bottom-right corner of the selected cells until the fill handle appears.
Click and drag the fill handle down to the last row of the amortization table. The functions will be automatically copied down and applied to each row of the table.
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.To check whether a CGI program works, you can test the URL in your Web browser. Which of the following directories should you save the program to on your Web server before you check the URL in your Web browser?
bin
cgi-bin
cgi
Scripts
Before checking the URL in your web browser, save the software to your Web server's cgi-bin folders.
What is a URL?
A web address, also known as an universal resource locator (URL), is a reference to a web asset that identifies its position on a computer system and a method of retrieval. Although many people confuse the two concepts, a URL is a particular kind of Uniform Resource Identifier (URI). In addition to being used for file transfers (FTP), email (mailto), database queries (JDBC), and many other applications, URLs are most frequently utilized to refer to web pages (HTTP).
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nstall the ntp service and then verify that the ntp service is running. use the dnf package manager to install the ntp service. use the systemctl utility to verify that the ntp service is running.
It can be inferred that the above task will be executed in Linux because the systemctl utility command is a Linux utility used to manage the sytemd service and the service manager on Linux.
1) In order to install NTP Service first, execute the following command as sudo in order to update your local repository index: "$ sudo apt-get update"
2) Execute this command to install NTP Server daemon from APT database: "$ sudo apt-get install ntp"
3) Next, open the file in the nano editor as sudo by executing the following command: "$ sudo nano /etc/ntp.conf"
4) Restart the NTP Service using the following command line "$ sudo service ntp restart"
To check that the NTP Service is running, execute the following command: "$ sudo service ntp status"
What is an NTP Service and why is it important?The Network Time Protocol (NTP) is a service that allows system clocks to be synchronized (from desktops to servers). It is not only useful but also needed for many distributed applications to have synchronized clocks. As a result, if the time originates from an external server, the firewall rules must enable the NTP service.
The usage of authentication techniques in Network Time Protocol (NTP) is critical to preventing an attacker from manipulating time information. Such systems have been present for a long time, such as the Symmetric Key-based method and the Autokey approach.
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What makes some websites more trustworthy than others?
you need to monitor the messages being written to the /var/log/messages file while troubleshooting a linux daemon that won’t start correctly. which command can you use to monitor the file and display each new message on the screen as they are added?
The following commands are the only commands you can use with the MONITOR command -DESCRIBE, -LIST, -Null, -QUERY.
What is terminal monitor command ?The terminal monitor is used to dynamically display selected logs on the VTYSH session. When the terminal monitor feature on the switch is enabled, it only displays the live or active logs. These logs are displayed during an SSH or console session.The MONITOR command defines or redefines a command and then outputs the results in the monitor window or log file. Only the following commands can be used in conjunction with the MONITOR command: - DESCRIBE, - LIST, - Null, - QUERYDebug Tool keeps track of the most recently entered MONITOR commands. Each command entered is assigned a number between 1 and 99, or you can enter your own. Use these numbers to tell Debug Tool which MONITOR command to redefine.To learn more about commands refer :
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A technician, Joe, has been tasked with assigning two IP addresses to WAN interfaces on connected routers. In order to conserve address space, which of the following subnet masks should Joe use for this subnet?A. /24B. /32C. /28D. /29E. /30E
The correct option is E. The following subnet that masks should Joe use for this subnet is /30.
An IP network can be logically divided into subnetworks or subnets. 1, 16 Subnetting is the process of splitting a network into two or more networks.
Similar most-significant bit groups are used in IP addresses to address computers that are on the same subnet. As a result, the network number or routing prefix and the rest field or host identity are logically separated into two fields in an IP address. A host or network interface can be identified by the remainder field.
The Classless Inter-Domain Routing (CIDR) notation allows the routing prefix to be represented as the network's primary address, followed by a slash (/), and the prefix's bit length at the end. To give one example, the prefix is 198.51.100.0/24.
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Ups measures routes for each of its drivers, including the number of miles driven, deliveries, and pickups. Which step in the control process does this represent?.
The Monitoring step of the control process involves measuring and evaluating performance against the standards established in the Planning step. By measuring the number of miles:
DrivenDeliveriesPickups for each driverWhich step in the control process does this represent?UPS is monitoring the performance of its drivers by measuring the number of miles driven, deliveries, and pickups for each driver. This is part of the control process, which involves establishing standards in the Planning step and then measuring and evaluating performance against these standards in the Monitoring step. By monitoring the performance of its drivers, UPS can ensure that they are meeting the established standards and make any necessary adjustments to improve their performance.
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A company wants to create highly available datacenters. Which of the following will allow the company to continue to maintain an Internet presence at all sites in the event that a WAN circuit at one site goes down?
A. Load balancer
B. VRRP
C. OSPF
D. BGP
A company wants to create highly available datacenters. BGP will allow the company to continue to maintain an Internet presence at all sites in the event that a WAN circuit at one site goes down.
About BGPBGP (Border Gateway Protocol) is a type of routing protocol that functions to exchange information between Autonomous Systems (AS). This BGP is a Dynamic Routing and on the proxy itself there are several kinds of dynamic routing features other than BGP such as OSPF and RIP. To exchange information, BGP utilizes the TCP protocol so that there is no need to use other types of protocols to handle fragmentation, retransmission, acknowledgment and sequencing.
Characteristics Of BGP Using distance vector routing algorithm. Distance vector routing algorithm periodically copies the routing table from router to router. Changes to the routing table are updated between interconnected routers when a topology change occurs. Used between ISPs with ISPs and clients. Used to route internet traffic between autonomous systems. BGP is Path Vector routing protocol. In the process of determining the best routes, it always refers to the best and selected path that it gets from other BGP routers. BGP routers establish and maintain peer-to-peer connections using port number 179. Inter-peer connections are maintained using periodic keepalive signals. The metrics (attributes) for determining the best route are complex and can be modified flexibly. BGP has its own routing table which usually contains the routing prefixes it receives from other BGP routersLearn more about BGP at https://brainly.com/question/9257367.
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Which type of loop is best in each situation? : you know ahead of time how many passes you wish to make through a loop. : you do not know ahead of time how many passes you wish to make through a loop.
In first situation, we will use "for loop" while in second situation we will use "While loop".
What is Loop in programming?
A loop is a software program or script that repeatedly executes the same instructions or processes the same data until it is told to stop. A loop, if not handled properly, can cause the computer to slow down as it becomes overburdened with repeating the same steps in an endless loop.
For Loop Syntax:
The for statement establishes a loop with three optional expressions:
for (expression 1o1; expression 2o2; expression 3o3) {
// code block to be executed
}
While Loop Syntax:
while ( condition ) {
/*....while loop body ....*/
}
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Beginners’ computer science!
Language- Java
Details of assignment-
3) As a coder at a pharmaceutical company,
you've been tasked with writing a program that will determine how long a particular drug may stay on shelves to be sold in
stores. Assume this drug loses 12% of its effectiveness every month (save into a
variable, but you don't have to get this value from the keyboard), and must be
discarded when effectiveness dips below 50%. Write a program that prints how many months the drug can remain on
shelves.
Please leave a comment if you would like a sample run!
Answer:
public class Drug {
public static void main(String[] args) {
int effectiveness = 100;
int months = 0;
while (effectiveness > 50) {
effectiveness *= 0.88;
months += 1;
}
System.out.println("The drug can remain on shelves for " + months + " months");
}
}
please let me know if this is correct! :D
a. consider a flow network in which vertices, as well as edges, have capacities. that is, the total positive flow entering any given vertex is subject to a capacity constraint. show that determining the maximum flow in a network with edge and vertex capacities can be reduced to an ordinary maximum-flow problem on a flow network of comparable size. b. describe an efficient algorithm to solve the escape problem and analyze its running time.
The following can be done to handle vertex capacities. We add two edge-containing vertices in and out for every vertex
What is a vertex?A vertex is a corner point formed by the junction of an object's edges, faces, or facets, and it can be a polygon, polyhedron, or any higher-dimensional polytope. If the internal angle of the polygon—the angle produced by the two edges at the vertices with the polygon inside the angle
In general, a polyhedron or polytope vertex is convex if the intersection with a suitably small sphere centered at the vertex is convex and concave otherwise.
The edge with the highest weight in a spanning tree is called a bottleneck edge. If there isn't a spanning tree with a smaller bottleneck edge weight in the graph, the tree is a minimum bottleneck spanning tree. A comparable issue is known as Minimum Bottleneck Spanning Arborescence for directed graphs (MBSA).
Therefore, All edges connect a reachable vertex to an unreachable vertex. Write down all such edges.
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develop sql code that would create the database files corresponding to your relational schema for the healthone medical database project. write the sql statements for creating the tables, specifying data types and field lengths, establishing primary keys and foreign keys, and implementing other constraints you identified.
Select New Database from the context menu by right-clicking Databases. Enter a database name in New Database. Select OK to establish the database using all default values; otherwise, carry out the ensuing optional procedures. Select (...) to choose a different owner to alter the owner name.
What SQL code that would create the database files?Launch MySQL Workbench in administrator mode (Right-click, Run as Admin). To construct the database schema, select File>Create Schema. Click Apply after providing the schema with a name.
Expand the Databases' node in Object Explorer before expanding the database that houses the new table. Right-click your database's Tables node in Object Explorer, and then select New Table.
Therefore, To execute the SQL command that creates the schema, click Apply in the Apply SQL Script to Database window.
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in problem solving, a method that always produces a problem solution (though not necessarily very efficiently) is known as group of answer choices an algorithm. a heuristic. a matrix. the hill-climbing heuristic.
A method that always produces a problem solution, though not necessarily very efficiently, is known as an algorithm.
What is an Algorithm?An algorithm is a step-by-step procedure for solving a problem or achieving a specific goal. It is a set of instructions that, if followed in the correct order, will always produce the same result.
Algorithms are often used in computer programming and other fields where precise, repeatable steps are necessary to solve a problem or accomplish a task.
Algorithms are typically designed to be efficient and effective, but they may not always be the fastest or most efficient way to solve a problem. Other approaches, such as heuristics, may be faster but less reliable, as they may not always produce a solution.
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_____ is data and instructions entered into the memory of a device.
Answer:storage
Explanation: this is the answer b/c any data that enters the memory of a computer is STORAGE
( hope this helped )
Data visualization is best defined as the use of _____ to present _____ data in a way that's easy to understand.
Data visualization is best defined as the use of bar chart to present report data in a way that's easy to understand.
What is data visualization?The graphic display of information and data is known as data visualization. Data visualization tools offer a simple way to visualize and understand data by utilizing visual components like charts, graphs, and maps.
Hence, Data visualization is the study of data visualization, or data that has been abstracted in some schematic fashion and includes attributes or variables for the information units.
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Answer:
graphics; complex
Explanation:
I took the quiz
A network analyst is setting up a wireless access point for a home office in a remote, rural location. The requirement is that users need to connect to the access point securely but do not want to have to remember passwords. Which of the following should the network analyst enable to meet the requirement?
1. MAC address filtering
2. 802.1X
3. Captive portal
4. WPS
Since the network analyst is setting up a wireless access point for a home office in a remote, rural location. The option that the network analyst should enable to meet the requirement is option 1. MAC address filtering.
Why is MAC filtering used by people?A person can be able to stop traffic originating from particular recognized machines or devices using MAC address filtering. The router uses the MAC address of a computer or other networked device to recognize it and decide whether to allow or deny access.
Therefore, as a network analyst, the use of MAC filtering is one that is located in the settings under Advanced Settings, Security, Access Control, or a section that is similar to these. The precise location will depend on the router's brand. There are two filtering options available for you to select from.
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. consider the count-to-infinity problem in the distance vector routing. will the count-to-infinity problem occur if we decrease the cost of a link? why? how about if we connect two nodes which do not have a link?
No, this is because that decreasing link cost won't cause a loop (caused by the next-hop relation of between two nodes of that link).
The count-to-infinity problemThe count-to-infinity problem occurs when a node in a distance vector routing network propagates an incorrect distance to another node, causing a loop. This can happen when a link cost is decreased, since this could cause the node to incorrectly believe that the cost of the link is lower than it actually is, leading to a routing loop.
If two nodes are connected that do not have a link, then the count-to-infinity problem will not occur, as there is no potential for a routing loop. However, if the two nodes do have a link and the cost of the link is decreased, then there is the potential for a routing loop, and the count-to-infinity problem could occur.
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Which descriptions best fit a normalized table? Check all that apply.
a. flexible
b. complex
c. easy to maintain
d. difficult to update
e. contains repeated data
The descriptions best fit a normalized table is: "flexible" (Option A). Normalization is the process of structuring data in a database.
This comprises the creation of tables and the establishment of linkages between those tables in accordance with rules aimed to preserve the data while also making the database more adaptable by avoiding redundancy and inconsistent reliance.
What is a table in Database Management?Tables are database structures that hold all of the information in a database. Tables logically arrange data in a row-and-column structure comparable to spreadsheets.
Each row represents a distinct record, and each column represents a record field.
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listen to exam instructions a user reports that she can't connect to a server on your network. you check the problem and find out that all users are having the same problem. what should you do next?
Note that where while listening to exam instructions a user reports that she can't connect to a server on your network. you check the problem and find out that all users are having the same problem. What you should do next is: "Determine what has changed" (Option B)
What is a network?A computer network is a collection of computers that share resources that are located on or provided by network nodes. To interact with one another, the computers employ standard communication protocols across digital linkages.
Local-area networks (LANs) and wide-area networks (WANs) are the two main network kinds (WANs). LANs connect computers and peripheral devices in a constrained physical space, such as a corporate office, laboratory, or college campus, using data-transmitting connections (wires, Ethernet cables, fiber optics, Wi-Fi).
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While listening to exam instructions a user reports that she can't connect to a server on your network. you check the problem and find out that all users are having the same problem. what should you do next?
What should you do next?
Create an action plan.Determine what has changed.Established the most probable cause.Identify the affected areas of the network.a server is configured for dynamic nat and has used all public ip addresses in the pool. what will the router do when another device wants to reach the outside network?
Port numbers are used by NAT overloading to identify each local host. Because of this, the method is also known as port address translation (PAT).
Therefore, the Standard Public IP address assigned to the NAT gateway will remain dedicated to it and cannot be used by another device unless you unassign or delete it. To convert a large number of unregistered IP addresses into a smaller number of registered ones, use dynamic NAT. With the aid of dynamic NAT, you are able to use a small number of registered addresses to connect to numerous hosts on the open Internet. After a certain amount of inactivity, the entry times out, and new translations can be made using the global IP address.
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