The backend, usually referred to as a database, is a crucial part of every Enterprise Web Application.
Thus, It therefore seems to have undergone performance and functionality testing.
To access or make changes to a database, you must use a structured query language (SQL). The Oracle, MYSQL, and SQL Server databases can all be used with this database programming language.
A feature that relates to a database component, like a table, is known as an attribute in a database management system (DBMS). It might also allude to a field in a database. The occurrences in a database column are described by attributes.
Thus, The backend, usually referred to as a database, is a crucial part of every Enterprise Web Application.
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Suppose you have an interface called ShakesHands with the following method listed in that interface: public void shakeHands(ShakesHands other); and three classes (Student, Teacher, Parent) all of which implement the ShakesHands interface, determine which of the following code fragments would compile:
The following exercise is about spotting which program or code fragment would compile and that which would not.
What is a code fragment?A code fragment is a minor or irrelevant section of the source code (determined in relation to the functionality of the Work Product as a whole).
In order to provide a product that is functionally identical to the Work Product including such Code Fragments, the Service Provider will not mix Code Fragments.
What does it mean to compile?
When a piece of code is compiled, it signifies that it has been transformed into machine code or another lower-level form that allows the program to run.
Which fragments will compile?
ShakeHands x = new ShakeHands();
This won't compile because there was no instantiation of the Interfaces.
ShakeHands x = new Student();
Because this is a valid and legal statement, it will definitely compile.
Student x = new ShakeHands();
This will not compile. The reason is that Student and Teacher are two different objects. The only thing these two classes have in common is that they both implement the ShakeHands interface, but even then, unless Student and Teacher are parent/child classes, they cannot be paired up.
ShakeHands x;
x=new Student();
x=new Teacher();
x=new Parent();
All of the aforementioned claims are true since they are all lawful. Since the ShakeHands interface is implemented by the Student, Teacher, and Parent classes, any child class's objects may be initialized using the ShakeHands class reference or object.
It is to be noted that can access only shakeHands() method defined in ShakeHands interface.
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Write a while loop that adds 5 to userNum while userNum is less than 20, displaying the result after each addition. Ex: For userNum
Using the computational knowledge in JAVA it is possible to write a code that Write a while loop that adds 5 to userNum while userNum
Writting the code in JAVA:// declaring variable userNum
var userNum = 5;
// variable ans to store all answers and print them in single line
// (as expected in sample output)
var ans = "";
// while loop, while userNum is <= 20
// (to get output 25 on screen, we need to run loop till less-than-equal)
while(userNum <= 20) {
userNum += 5;
ans += userNum + " ";
}
// displaying final output on console
console.log(ans);
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An object with a density of 871.0 kg/m3 and a mass of 1255.0 kg is thrown into the ocean. Find the volume that sticks out of the water.
The object can only stick out of the water because of the Archimede's principle.
What is the Archimede's principle?Archimedes' principle states that the buoyant force acts vertically and upwards on bodies totally or partially immersed in fluids, moreover, according to this principle, such force has the same value as the weight of the fluid, displaced by the insertion of the body.
With that being said, following the Archimede's principle:
Weight of water displaced by floating object = Weight of object; so
Volume of water displaced = Part below water line; changing values and using the pseawater = [tex]1024kg/m^{3}[/tex]:
[tex]\frac{m}{\rho} \\\\\frac{1255}{1024} = 1,2255859375m^{3}[/tex]
Volume of entire object = [tex]\frac{m}{\rho}[/tex]
[tex]\frac{1255}{871} = 1,4408725603m^{3}[/tex]
Volume that sticks out of the water: Volume of entire object - Volume of water displaced; so: 1,4408725603 - 1,2255859375 = 0,2152866228m3
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Write the removeevens() method, which receives an array of integers as a parameter and returns a new array of integers containing only the odd numbers from the original array. the main program outputs values of the returned array.
hint: if the original array has even numbers, then the new array will be smaller in length than the original array and should have no blank element.
ex: if the array passed to the removeevens() method is [1, 2, 3, 4, 5, 6, 7, 8, 9], then the method returns and the program output is:
[1, 3, 5, 7, 9]
ex: if the array passed to the removeevens() method is [1, 9, 3], then the method returns and the program output is:
[1, 9, 3]
lab: remove all even numbers from an array
labprogram.java l.
1 import java.util.arrays;
2
3 public class labprogram {
4
5 public static int[] removeevens(int [] nums) {
6
7
8 }
9
10 public static void main(string[] args) {
11
12 int [] input {1,2,3,4,5,6,7,8,9};
13 int [] result = removeevens(input);
14
15 // helper method arrays.tostring() converts int[] to a string
16 system.out.println(arrays.tostring(result)); // should print [1, 3, 5, 7, 9]
17 }
18 }
Answer:
import java.util.*;
import java.util.Arrays;
public class LabProgram
{
// called function
public static int[] removeEvens(int [] nums)
{
// calculates the length of array
int len = nums.length;
int j=0;
// loop to keep count how many odd are there in array
for(int i=0;i<len;i++)
{
// condition for odd
if(nums[i]%2!=0)
{
// keeps count of odd
j++;
}
}
// declaration of array for odd nums
int newarray[] = new int[j];
j = 0;
// loop
for(int i=0;i<len;i++)
{
// condition for odd
if(nums[i]%2!=0)
{
// assigning odd number to new array
newarray[j] = nums[i];
// increment of j
j++;
}
}
// returning new array
return newarray;
}
// main program
public static void main(String[] args)
{
// array declaration
int [] input = {1,2,3,4,5,6,7,8,9};
// calling a function, passing the paramtere
int [] result = removeEvens(input);
//
System.out.println(Arrays.toString(result));
}
}
Explanation:
When using sftp to share files, what is encrypted in addition to the authentification information?.
In using SFTP to share files, the encryption in addition to the authentication information is seen in the user's email address.
What is authentication information?Authentication Information is known to be that which tells about the usernames, passwords, electronic certificates, etc., that a one can use to know or be assured of a User's true identity.
Note that In using SFTP to share files, the encryption in addition to the authentication information is seen in the user's email address.
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If you're connected to a switch and your NIC is in promiscuous mode, what traffic would you be able to capture
If you're connected to a switch and your NIC is in promiscuous mode, the traffic would you be able to capture would be broadcast traffic.
What is Broadcast traffic?
Broadcast traffic is used to send packets to all hosts on the network using the network's broadcast address. With a broadcast, the packet contains a destination IP address that only has numbers one (1s) in the host portion. This means that all hosts on that local network (broadcast domain) will receive and verify the packet. Many network protocols, such as DHCP, use broadcasts. When a host receives a packet sent to the network's broadcast address, the host processes the packet as a packet addressed to its unicast address.
Also, there are two types of broadcasts: directed broadcast and limited broadcast.
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What does it mean when we say that we are currently in the noisy, intermediate-scale quantum computing (nisq) stage?
A noisy, intermediate-scale quantum computing (nisq) stage is said to be the topmost quantum processors that has about 50 to 100 qubits, but are said to be never advanced enough to be able to attain fault-tolerance or even big enough to bring about sustainably in terms of quantum supremacy.
What does NISQ known for?It connote Noisy Intermediate Scale Quantum. Intermediate scale and it is one that tells that one is talking about devices that are said to be large enough, and have about 50 qubits or more that is said to be enough.
Note that it is also one that a person cannot by brute force simulate the quantum system via the use of the most powerful existing digital computers.
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What type of digital marketing is exemplified by a company rewriting the code for its website to contain more keywords, or by finding creative ways to place its URL in multiple spots on the web
A type of digital marketing that is exemplified by a company rewriting the code for its website to contain more keywords, or by finding creative ways to place its URL in multiple spots on the web is referred to as social media marketing.
What is digital marketing?Digital marketing can be defined as a type of marketing technique which typically involves the process of developing promotional techniques and sales strategies through the use of multimedia resources and electronic devices, so as to enhance the sales of goods and services that meet the needs of the customers or end users.
In this context, we can infer and logically deduce that social media marketing refers to a type of digital marketing that is exemplified by a company rewriting the code for its website to contain more keywords, or by finding creative ways to place its URL in multiple spots on the web.
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What is a barrier to entry preventing quantum computing hardware from becoming more widely available?.
The option that is barrier to entry preventing quantum computing hardware from becoming more widely available is that They cost companies millions of dollars to manufacture.
What is quantum computing?Quantum computing is known to be an aspect of computing based on creating computer technology as a result of or on the principles of quantum theory.
Note that The option that is barrier to entry preventing quantum computing hardware from becoming more widely available is that They cost companies millions of dollars to manufacture.
See options below
a) They are limited to solving only intractable problems.
b) They cost companies millions of dollars to manufacture.
c) They need to be kept at a constant temperature of 0°C.
d) They are not expected to save data for more than a year.
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In linux, an ____ stores everything about a file, except for the filename and the file data.
In Linux, an inode or index node stores everything about a file, except for the filename and the file data.
What is in an inode?An inode is known to be often called index node. This is known to be a data structure that pertains to UNIX operating systems that has all the vital information that is regards to files that are found within a file system.
Not that if a file system is made in UNIX, a set amount of inodes is formed and Linux often uses an index node (or inode) to save all the key or relevant information about a file.
Hence according to the above,In Linux, an inode or index node stores everything about a file, except for the filename and the file data.
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How do budget constraints, even for the largest game design companies, affect the development schedule for a game development team? If you were building the budget for a proposed game, where would you allocate the most money? Defend your decision, explaining why this stage of the design to the production process is supported with the largest percentage of budget funds. pls help
Budget constraints affect the development schedule for a game as its includes
Technical bugs or some forms of limitations. A game that has pre-existing Intellectual Property (IP). When there is Limited resources and othersWhat is game development?This is known to be the act of making games. Know that the feature listed above can affect:
The time for the release of the gameLegal issuesFinancial loss and others.Hence, Budget constraints affect the development schedule for a game as its includes
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Frankie used the ps command to find the process id of an application that he needs to stop. What command-line tool should he use to stop the application based on its process id?
In the case above, the command-line tool should he use to stop the application based on its process id is e option
What is the use of ps command?
The ps command is known to be one that helps enables a person to be able to look at the status of any kind of active processes on a system, and also that of display technical information in regards to the processes.
Note that In the case above, the command-line tool should he use to stop the application based on its process id is e option
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In order for css to work with HTML5 elements, you need to use a javascript HTML5 shiv or shim. What is this placed in?
For CSS to work with HTML5 elements, the command that is placed in the above CSS is given in the image attached.
The Tags (Elements) are:
<article> - this stands for an independent piece of issue of a document, such as a blog entry and others.<aside > - this stands for a piece of writing or a content that is said to be in a little way or only slightly linked to the rest of the page.Does HTML5 use JavaScript?HTML5 is known to be one of the element that is often used to make the basic structure and depict content in WWW, but Javascript is known to be a vital aspect of HTML5.
Therefore, For CSS to work with HTML5 elements, the command that is placed in the above CSS is given in the image attached.
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Create a conditional expression that evaluates to string negative if user_val is less than 0, and non-negative otherwise.
Answer: I am supposed to write a few lines of code to create a conditional expression (ternary operation) that evaluates to string "negative" if user_val is less than 0 and "non-negative" if 0 or greater than 0.
The code I currently have prints "negative" when the number is less than zero but when a number 0 or greater is assigned to user_val it doesn't print "non-negative."
You use a custom application that was developed in-house. On a periodic basis, the application writes or modifies several registry entries. You want to monitor these registry keys so that you can create a report that shows their corresponding settings over the next 5 days. What should you do
In the case above, the right thing that a person should do is to Configure a configuration data collector in the Performance Monitor.
What does a Performance Monitor do?The Microsoft Windows is known to have a Performance Monitor and this is known to be a tool that is one where the administrators often use to evaluate how programs functions on their computers influence the computer's performance.
Note that this tool is one that can be used in real time and therefore, In the case above, the right thing that a person should do is to Configure a configuration data collector in the Performance Monitor.
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Program ________ graphically present the detailed sequence of steps needed to solve a programming problem.
i. flowcharts
ii.pseudocode
iii. loops
iv. modules
Software program flowcharts graphically present the detailed sequence of steps needed to solve a programming problem.
What is a flowchart?A flowchart is also referred to as flow diagram and it can be defined as a graphical representation of an algorithm for a work process or workflow.
This ultimately implies that, a flowchart make use of the following standard symbols to graphically represent the sequential steps that are needed to solve a programming problem and are typically associated with a system, work process or workflow i.e from the beginning (start) to the end (finish):
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Program flowchart graphically present the detailed sequence of steps needed to solve a programming problem.
What is Program flowchart?
The program flowchart can be regarded as the data flow which help to display the data flow while writing a program or algorithm.
This chart user to explain the process quickly when dealing or collaborating with others, hence, Program flowchart graphically present the detailed sequence of steps needed to solve a programming problem.
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Multiple Select
It is important to be polite to people when you are online because
it reflects your level of professionalism
it helps build a good reputation
you can be fined if you are impolite
it says a lot about your character
you must avoid getting into trouble
Select 3 options.
It is important to be polite to people when you are online because
it reflects your level of professionalism.it helps build a good reputation.it says a lot about your character.What is online presence?Online presence is said to be the numbers or all activity and content that an individual or a business entails under their name in regards to the internet.
Note that It is important to be polite to people when you are online because
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a uniform density sheet of metal is cut into a shape of an isosceles triangle, which is oriented with the base at the bottom and a corner at the top
The horizontal center of mass will be located at the horizontal center of mass will be located on the center line. This is further explained below.
What is Location?Generally, a location or place that is inhabited, open for occupation or distinguished by some distinctive feature: situation The setting of the property contributes significantly to its overall allure.
In conclusion, The center line will serve as the location for the horizontal center of mass, which will be found at the same location as the center line.
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Basil was reading about a new attack that forces the system to abandon a higher cryptographic security mode of operation and instead fall back to an older and less secure mode. What type of attack is this
Since Basil was reading about a new attack that forces the system to abandon a higher cryptographic security mode of operation and the kind of attack is known to be Downgrade attack.
What is downgrade security attack?A downgrade attack is known to be a kind of of cyber attack that is made up of the fact that an attacker is known to often forces a network channel to make a switch to a kind of an unprotected or one that is said to be less secure data transmission standard.
Note also that the Downgrading of a given protocol version is said to be a key element of a type of a man-in-the-middle attacks, and it is known to be one that is often used to take or hijack encrypted traffic.
Hence, Since Basil was reading about a new attack that forces the system to abandon a higher cryptographic security mode of operation and the kind of attack is known to be Downgrade attack
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What features should you present when demonstrating 2023 murano’s confident cornering?.
Answer:
features of muranos confident cornering 2022:-
-Intelligent All-Wheel Drive
-4-wheel independent suspension
-Electrically driven hydraulic power steering
Based on the automobile analysis, the features one should present when demonstrating 2023 Murano's confident cornering include "4-wheel independent suspension."
What is Cornering in a vehicle?Cornering is a term that describes the extent of the force wielded on the vehicle's center of gravity.
Other features one should present when demonstrating 2023 Murano's confident cornering
Intelligent All-Wheel DriveElectrically driven hydraulic power steering2023 Murano is a modern vehicle produced by Nissan Manufacturer. It comes with the latest design, swift navigation component, and easy-to-handle features.
For 2023, the Murano is seen to be having a lot of overdue makeovers and it is one that includes a feature of improvements such as revamp of the outside and interior.
Hence, in this case, it is concluded that the 2023 Murano is one of the latest vehicles to possess.
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2023 murano’s available intelligent awd adjusts the ________ to help maintain cornering control.
2023 Murano's available intelligent awd adjusts the Torque delivered to the wheels to help maintain cornering control.
How does torque moves wheels?The torque from the engine is known to be that tool that moves a car. A lot of torque can be transferred to the wheels in first gear and it is better than in fifth gear.
Hence, 2023 Murano's available intelligent awd adjusts the Torque delivered to the wheels to help maintain cornering control.
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The _________ tag allows a web page to include interactive content, which the browser assumes to be javascript unless indicated otherwise.
The <script> tag allows a web page to include interactive content, which the browser assumes to be javascript unless indicated otherwise.
What is a script tag?The <script> tag is known to be a tool that is often employed or used in regards of or to embed a client-side script (JavaScript).
Hence, The <script> tag allows a web page to include interactive content, which the browser assumes to be javascript unless indicated otherwise.
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Your computer's sound stops working after updating the driver. What should you do to recover from this problem with the least amount of administrative effort
The thing to do in order to recover from this problem with the least amount of administrative effort is to Reboot the computer into Safe Mode and use Device Manager to roll back the driver.
What is a Device Driver?This refers to the computer program that is in charge of a particular type of device that controls a computer part.
Hence, we can see that based on the fact that the audio in the computer beings to malfunction after updating the device drivers, the best step to take is to Reboot the computer into Safe Mode and use Device Manager to roll back the driver.
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If an algorithm created to help make hiring decisions is based on previous unfair decisions, then the algorithm may be
If an algorithm created to help make hiring decisions is based on previous unfair decisions, then the algorithm may be flawed.
What are algorithms being used for?Algorithms are known to be tools that are made to help in calculation, data processing, and a kind of automated reasoning.
Hence, If an algorithm created to help make hiring decisions is based on previous unfair decisions, then the algorithm may be flawed.
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Answer:
biased
Explanation:
Canvas allows instructors to utilize powerful edtech apps to create dynamic learning environments for their students. In canvas, apps are identified as.
In canvas, apps are identified as:
LTIs External ToolsWhat are Canvas External Tools?An External Tool is one that helps Canvas users along with the use of LTI learning resources and activities gotten from other websites and academic technologies.
Note that Canvas is known to have a unique features that are said to be available so that one can link to courses such as external tools.
Hence, In canvas, apps are identified as:
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A text file has 456789 letters. If the text file is text wrapped to 80 characters per line (a line folds to the next after 80 columns of characters from the left), the number of lines with letters in the text file would be: . How many letters are in the last line
Answer:
5710 lines
Explanation:
Salesforce organizes your data into: A. Objects and records, like tabs and rows on a spreadsheet. B. Objects and fields, like columns on a spreadsheet. C. Fields and records, like different databases. D. Objects and spreadsheets, like columns in a database.
Salesforce organizes your data into option A. Objects and records, like tabs and rows on a spreadsheet.
How does Salesforce organize data?Salesforce is known to be a tool that helps one to put together their your into objects and records and it is said to have standard objects that has been set up and ready for use.
Hence, Salesforce organizes your data into option A. Objects and records, like tabs and rows on a spreadsheet.
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You would like to see only the last 15 lines of /home/user/log file on your linux machine. Which command line interface (cli) command would you use?
In Linux computer systems, "tail -n 15 /home/user/logfile" is a command line interface (cli) command that should be used to view only the last 15 lines of /home/user/log file.
What is a Linux command?A Linux command can be defined as a software program that is designed and developed to run on the command line, in order to enable an administrator (end user) of a Linux network perform both basic and advanced tasks by entering a line of text.
In Linux computer systems or machines, a command line interface (cli) command that should be used by an administrator (end user) to view only the last 15 lines of /home/user/log file is "tail -n 15 /home/user/logfile."
In conclusion, the above command would reveal only the last 15 lines of /home/user/log file on a Linux computer system.
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True or false: A many-to-many relationship between classes A and B (where the maximum multiplicity on both sides of the association is *) is implemented by posting foreign keys in both A and B.
A many-to-many relationship between classes A and B (where the maximum multiplicity on both sides of the association is *) is implemented by posting foreign keys in both A and B is a false statement.
What is a many-to-many relationship?A many-to-many relationship is known to be one that exist if one or more items that is found in one table can have an association to one or more items in another given table.
Hence, A many-to-many relationship between classes A and B (where the maximum multiplicity on both sides of the association is *) is implemented by posting foreign keys in both A and B is a false statement.
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To set up scenarios, you need to first use ______ to set up a list, then ______ to set up the reference cell. Last you need to use ______ to set up the cells that display the output results from the scenario.
To set up scenarios, you need to first use Goal seek to set up a list, then data table to set up the reference cell. Last you need to use VLOOKUP to set up the cells that display the output results from the scenario.
What is a Goal Seek in Excel?Microsoft Excel is known to have a goal seeking tool that is said to be built-in and it is one that gives room for the user to know the desired input value for any kind of formula if the output value is said to be already known.
Hence, To set up scenarios, you need to first use Goal seek to set up a list, then data table to set up the reference cell. Last you need to use VLOOKUP to set up the cells that display the output results from the scenario.
See full question below
To set up scenarios, you need to first use to set up a list, then to set up the reference cell. Last you need to use to set up the cells that display the output results from the scenario. CHOOSE; VLOOKUP; data table Goal seek; data table; VLOOKUP Data validation; VLOOKUP; CHOOSE Data table; VLOOKUP;
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