For this problem, use a formula from this chapter, but first state the formula. Frames arrive randomly at a 100-Mbps channel for transmission. If the channel is busy when a frame arrives, it waits its turn in a queue. Frame length is exponentially distributed with a mean of 10,000 bits/frame. For each of the following frame arrival rates, give the delay experienced by the average frame, including both queueing time and transmission time.
a. 90 frames/ sec.
b. 900 frames/ sec.
c. 9000 frames/ sec

Answers

Answer 1

Answer:

(a). 0.1 × 10^-3 = 0.1 msec.

(b). 0.11 × 10^-3 = 0.11 msec.

(c). 1 × 10^-3. = 1 msec.

Explanation:

So, in order to solve this problem or question there is the need to use the Markov queuing formula which is represented mathematically as below;

Mean time delay, t = /(mean frame length,L) × channel capacity, C - frame arrival rate, F. ---------------------------------(1).

(a). Using equation (1) above, the delay experience by 90 frames/sec.

=> 1/(10^-4× 10^8 - 90). = 0.1 × 10^-3= 0.1 msec.

(b). Using equation (1) above, the delay experience by 900 frames/sec.

=> 1/(10^-4× 10^8 - 900). = 0.11 × 10^-3= 0.11 msec.

(c). Using equation (1) above, the delay experience by 90 frames/sec.

=> 1/(10^-4× 10^8 - 9000). = 1 × 10^-3= 1 msec.

Hence, the operating queuing system is; 900/10^-4 × 10^8 = 0.9.


Related Questions

What must be done to translate a posttest loop expressed in the form


repeat:


(. . . )


until (. . . )


into an equivalent posttest loop expressed in the form


do:


(. . . )


while (. . . )

Answers

Answer:

num = 0

while (num < 50):

if (num is Odd)

print(num is Odd)

num = num + 1

num = 0

repeat:

if (num is Odd)

print(num is Odd)

num = num + 1

until (num>=50)

Write the method scrambleWord, which takes a given word and returns a string that contains a scrambled version of the word according to the following rules.
a. The scrambling process begins at the first letter of the word and continues from left to right.
b. If two consecutive letters consist of an "A" followed by a letter that is not an "A", then the two letters are swapped in the resulting string.
c. Once the letters in two adjacent positions have been swapped, neither of those two positions can be involved in a future swap.
The following table shows several examples of words and their scrambled versions.
word Result returned by scrambleWord(word)
"TAN" "TNA"
"ABRACADABRA" "BARCADABARA"
"WHOA" "WHOA"
"AARDVARK" "ARADVRAK"
"EGGS" "EGGS"
"A" "A"
"" ""

Answers

Answer:

Let's implement the program using JAVA code.

import java.util.*;

import java.util.ArrayList;

import java.io.*;

public class ScrambledStrings

{

/** Scrambles a given word.

* atparam word the word to be scrambled

* atreturn the scrambled word (possibly equal to word)

* Precondition: word is either an empty string or contains only uppercase letters.

* Postcondition: the string returned was created from word as follows:

* - the word was scrambled, beginning at the first letter and continuing from left to right

* - two consecutive letters consisting of "A" followed by a letter that was not "A" were swapped

* - letters were swapped at most once

*/

public static String scrambleWord(String word)

{

// iterating through each character

for(int i=0;i<word.length()-1;)

{

//if the condition matches

if(word.charAt(i)=='A' && word.charAt(i+1)!='A'){

//swapping the characters

word=word.substring(0,i)+word.charAt(i+1)+word.charAt(i)+word.substring(i+2);

//skipping the letter

i+=1;

}

//skipping the letter

i+=1;

}

return word;

}

Explanation:

Note: Please replace the "at" on the third and fourth line with at symbol that is shift 2.

Days of Each Month Design a program that displays the number of days in each month. The program’s output should be similar to this: January has 31 days. February has 28 days. March has 31 days. April has 30 days. May has 31 days. June has 30 days. July has 31 days. August has 31 days. September has 30 days. October has 31 days. November has 30 days. December has 31 days. Psuedocode

Answers

Answer:

A python script:

months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]

numbers = [31,28,31,30,31,30,31,31,30,31,30,31]

counter = 0

numbers_length=len(numbers)-1

while counter <= numbers_length:

month=months[counter]

number=numbers[counter]

print (month + " has " + str(number) + " days")

counter = counter+1

Explanation:

The Python script above will generate this output:

January has 31 days.

February has 28 days.

March has 31 days.

April has 30 days.

May has 31 days.

June has 30 days.

July has 31 days.

August has 31 days.

September has 30 days.

October has 31 days.

November has 30 days.

December has 31 days.

what is the percentage of 20?

Answers

Hi!

I'm Happy to help you today!

The answer to this would be 20%!

The reason why is because percents are simple to make! Like theres always an end percent! But its always gonna end at 100% Let me show you some examples to help you understand!

So were gonna have the end percent at 100%

Lets turn 2 into a percent!

2 = 2% because its under 100%

Now lets go into a Higher number like 1000%

So lets turn 33 into a percent!

33 = 3.3% 30 turns into 3% because of the max percent of 1000% and then 3 turns into .3% because of the max of 1000%

I hope this helps!

-LimitedLegxnd

-If you enjoyed my answer make sure to hit that Heart! Also Rate me to show others how well i did! You can do that by clicking the stars!

-Question asker mark me brainliest if you really enjoyed my answer!

Highlights the possible risks and problems that should be addressed during the implementation process

Answers

Answer:

The answer is below

Explanation:

Since the type of Implementation is not stated specifically, it is believed that, the question is talking about ERP Implementation, because it is related to subject in which the question is asked.

Hence, Enterprise Resource Planning (ERP) implementation deals basically, by carrying out installation of the software, transferring of finanancial data over to the new system, configuring application users and processes, and training users on the software

ERP Implementation Risks involve the following:

1. Inefficient Management and Project Activities.

2. Inadequate or No Training and Retraining of Customers or End-Users.

3. Inability to Redesign Business Processes to meet the Software requirements.

3. Incompetent or lack of Technical Support Team and Infrastructure.

4. Incapability to Obtain Full-Time Commitment of Employee.

5. Failure to Recruit and Maintained Qualified Systems, and Developers.

Only one calendar can be visible at a time
in Outlook.
Select one:
a. False
b. True

Answers

Answer:

a. False

Explanation:

It is false as more than one calendar is visible in outlook.

Explanation:

it is false

i think it helps you

ALAP Help

what is a computer

Answers

Answer:An electronic device for storing and processing data, typically in binary form

Explanation:

A company wants to implement a wireless network with the following requirements:
i. All wireless users will have a unique credential.
ii. User certificate will not be required for authentication
iii. The company's AAA infrastructure must be utilized
iv. Local hosts should not store authentication tokesn
1. Which of the following should be used in the design to meet the requirements?
O EAP-TLS
O WPS
O PSK
O PEAP

Answers

Answer:

PEAP is the correct answer to the given question .

Explanation:

The  PEAP are implemented to meet the demands because it is very much identical to the EAP-TTLS design also it includes the server-side PKI authentication .

The main objective of  PEAP is to establish the protected TLS tunnel for protecting the authentication process, as well as a server-side encryption authentication.The PEAP  is also used for validating the application it validating her process with the help of the TLS Tunnel encryption between the user and the verification.All the other options are not suitable for the  to meet the requirements of the design that's why these are incorrect option .

2 point) Express this problem formally with input and output conditions.2.(2 points) Describe a simple algorithm to compute the upper median. How manyoperations does it take asymptotically in the worst case?3.(7 points) Show how you can use the (upper) medians of the two lists to reduce thisproblem to its subproblems. State a precise self-reduction for your problem.4. (7 points) State a recursive algorithm that solves the problem based on your reduction.5.(2 point) State a tight asymptotic bound on the number of operations used by youralgorithm in the worst case.

Answers

Answer:

See attached images

You and your friends are driving to Tijuana for springbreak. You are saving your money for the trip and so you want to minimize the cost of gas on the way. In order to minimize your gas costs you and your friends have compiled the following information.
First your car can reliably travel m miles on a tank of gas (but no further). One of your friends has mined gas-station data off the web and has plotted every gas station along your route along with the price of gas at that gas station. Specifically they have created a list of n+1 gas station prices from closest to furthest and a list of n distances between two adjacent gas stations. Tacoma is gas station number 0 and Tijuana is gas station number n. For convenience they have converted the cost of gas into price per mile traveled in your car. In addition the distance in miles between two adjacent gas-stations has also been calculated. You will begin your journey with a full tank of gas and when you get to Tijuana you will fill up for the return trip.
You need to determine which gas stations to stop at to minimize the cost of gas on your trip.
1. Express this problem formally with input and output conditions.
2. State a self-reduction for your problem.
3. State a dynamic programming algorithm based off your seld reduction that computes the minimum gas cost.

Answers

Answer:

Explanation:

.Car can Travel a m miles tank on a gas

2.For N distance there are n+1 adjacent gas stations.

Output Conditions:

Tacoma will fill the gas station while going.

Tijuana will fill up gas for the return trip

3.Dynamic self Reduction Algorithm

Start

if(n==0)

Tacoma is a gas station number 0;

else

Tijuana is a gas station n+1;

stop


The data structure used for file directory is called
Select one
a. process table
b. mount table
C. hash table
d file table​

Answers

This is a tough question. I’m not sure if I’ll get it right but I’ll try.

Data structures used for file directories typically have a hierarchical tree structure, referred to as a directory structure. The tree has a root directory, and every file in that system has a unique path.

The simplest method of implementing a directory is to use a linear list of file names with pointers to the data blocks. But another way that you can format a file directory is by using a hash table. With this method, the linear list stores the directory entries, but a hash data structure is also used. The hash table takes a value computed from the file name and return the pointer to the file name any linear list.

So I think it’s C. But I’m not 100% sure.

I hope that helps.

Complete data are very rare because some data are usually missing. There are typically four strategies to handle missing data.
Ignore the variables with missing data.
Delete the records that have some missing values.
Impute the missing values (i.e., simply fill in the missing values with some other value, such as the mean of similar records with data).
Use a data mining technique that can handle missing values, such as CART, which is one of a few techniques that handle missing data pretty well.
Suppose you are working on a project to model a hotel company's customer base. The goal is to determine which customer attributes are correlated with a high number of hotel stays. You have access to data from a customer survey, but one field (which is optional) is yearly income and has some missing values equaling roughly 5% of the records. Which of the strategies should be used? Explain why. Suppose you chose the third strategy. Explain how you would impute the missing incomes.

Answers

Answer:

see explaination

Explanation:

If I am to select I will select the strategy Impute the missing values . Because rather than deleting and all the other strategies. This is the best option because, this is an optional field as described there is no need for such accurate information about salary.

If we want to maintain this field we can just fill the value by identifying the similar records which is the other customers who is visiting the same no of times and fill that.

Write short notes on a. Transaction Processing System (TPS)

Answers

Answer: A Transaction Processing System (TPS) is a type of information system that collects, stores, modifies and retrieves the data transactions of an enterprise. Rather than allowing the user to run arbitrary programs as time-sharing, transaction processing allows only predefined, structured transactions.

Three cycles: Transaction processing systems generally go through a five-stage cycle of 1) Data entry activities 2) Transaction processing activities 3) File and database processing 4) Document and report generation 5) Inquiry processing activities.

Explanation: hope this helps!

As citizens online or in real life, how, or why, do the choices we make, almost always seems to have an effect (positive or negative) on others?

Answers

Answer:

The choices we make as citizens online or in real life have both positive and negative effects on others because we are social beings, who live in an interconnected world.  Every choice has some consequences on the decision maker or on others.  We make the choices, but the consequences follow natural laws, which we cannot control.  When Adam and Eve chose to disobey God, human beings down the ages lost their innocence and freedom.  When the Nazis chose to purify their race of European Jews, there was the Holocaust between 1941 and 1945.  When the Minneapolis police officer chose to slaughter George Floyd in cold blood, violent protests erupted throughout the U.S.

Another current example to buttress this is the ravaging coronavirus pandemic, which originated in Wuhan - China.  When the Chinese Communist  government chose to suppress the information about the virus as it usually does, the aftermath is the thousands of dead humans all over the world, the economic downturn, loss of jobs, virus infections with other public health side effects, plus many other untold consequences.

Had the Chinese government made a different choice, the virus could not have spread worldwide as it had.  Similarly, some citizens online choose to circulate unverifiable ("fake news") information.  Many people have been misled by their antics, some have lost their lives, while many others live in perpetual bigotry and hatred.  All these are because of individual choices.

Explanation:

Choice is a concept in decision making.  It is the judging of the merits of multiple options so that one or some of the options are selected.  When a voter votes for one candidate against others, she has made a choice (decision).  Of course, choices have consequences, which we must live with.  Choices also define our present and our future.

Which of the following groups is NOT located on the Home tab?

Answers

Which of the following groups is NOT located on the Home tab?

Animations

Animations is not located

Why is it difficult to convince top management to commit funds to develop and implement a Strategic Information System

Answers

Answer:

It is difficult to convince top management to commit funds to develop and implement an SIS because it can lead to reengineering, which requires businesses to revamp processes to undergo organizational change to gain an advantage.

Explanation:

If many programs are kept in main memory, then there is almostalways another program ready to run on the CPU when a page faultoccurs. Thus, CPU utilization is kept high. If, however, we allocate alarge amount of physical memory to just a few of the programs, theneach program produces a smaller number of page faults. Thus, CPUutilization is kept high among the programs in memory. What would the working set algorithm try to accomplish, and why?(Hint: These two cases represent extremes that could lead toproblematic behavior.)

Answers

Answer:

With the analysis of the case, we can infer that regarding the model or algorithm of the work set, we want to reduce page faults in each individual process, guaranteeing that the set of pages are included before executing the process.

There are things that should not change, such as the set of pages used in the process or the working set as they are called, they could only change if a program moves to a different phase of execution. In this way the most suitable and profitable approach is proposed for the use of time in the processor, by avoiding bringing oagines from the hard disk and instead of this the process is executed, because otherwise it would take a long time what was observed in decreased performance.

Regarding what was mentioned in the question, it follows that 2 extremes lead to a problematic behavior, to define the first as a page fault and the second refers to a small number of processes executed.

One factor in algorithm performance that we've not had a chance to speak much about this quarter, but one that is certainly relevant in practice, is parallelism, which refers to the ability to speed up an algorithm by doing more than one thing at once. Nowadays, with most personal laptop or desktop computers having multicore processors, and with many workloads running on cloud infrastructure (i.e., potentially large numbers of separate machines connected via networks), the ability to run an algorithm in parallel is more important than ever.

Of course, not all problems can be parallelized to the same degree. Broadly, problems lie on a spectrum between two extremes. (In truth, most problems lie somewhere between these extremes, but the best way to understand what's possible is to know what the extremes are.)

Embarrassingly parallel problems are those that are composed primarily of independent steps that can be run in isolation from others and without respect to the results of the others, which makes them very easy to parallelize. Given n cores or machines, you could expect to run n steps simultaneously without any trouble.
Inherently serial problems are those whose steps have to be run sequentially, because the output of the first step makes up part of the input to the second step, and so on. Multiple cores or machines aren't much help for problems like this.
Now consider all of the sorting algorithms we learned about in our conversation about Comparison-Based Sorting. For which of the algorithms would you expect a multicore processor to be able to solve the problem significantly faster than a single-core processor would be able to solve it? For each of the ones that would benefit, briefly explain, in a sentence or two, why multiple cores would be beneficial. (There's no need to do any heavy-duty analysis here; we just want to see if you've got a sense of which might benefit from parallelism and why.)

Answers

Answer:

Quick sort and Merge sort supports parallelism

Explanation:

When we talk about parallelism, we are referring to the idea of breaking down a problem into a number of many subproblems after which we combine the solutions of these subproblems into a single solution. Here we allocate these subtasks to the multicore processors where each core gets assigned each of the subtasks are assigned to a core according to its ability or functionality. After each of the core are through with its evaluation, all their results are collated and combined to come up with a full rounded and complete solution to the given problem.

If we take a look at sorting algorithms such as selection sort, bubble sort and insertion sort, we will find out that these algorithms cant be simulated on a multicore processor efficiently because they are sequential algorithms.

On the other hand, we have sorting algorithms that can easily be simulated in a multicore processor since they can divide the given problem into subproblems to solve after which the solutions can be combined together to arrive at or come up with a complete solution to the problem. This algorithms includes Quick sort and Merge sort, they make use of Divide and Conquer paradigm.

How many seconds are required to make a left turn and join traffic?​

Answers

In town: 5-8 seconds
On highways: 10-20 seconds
City - 5-10 seconds
Highway 10-20 seconds

You are planning to use Spark to create a machine learning model that recommends restaurants to users based on user details and past ratings for restaurants What is the simplest way to implement this model? Use a Logistic Regression algorithm to train a classifier. Use a K-Means algorithm to create clusters. Use an alternating least squares (ALS) algorithm to create a collaborative filtering solution. Use a Decision Trees algorithm to train a regression model.

Answers

Answer:

The third point i.e " Use an alternating least squares (ALS) algorithm to create a collaborative filtering solution" is the correct answer .

Explanation:

The Alternating Less Squares  is the different approach that main objective to enhancing the loss function.The Alternating Less Squares process divided the matrix into the two factors for optimizing the loss .The divided of two factor matrix is known as item matrix or the user matrix.

As we have to build the machine learning model which proposes restaurants to restaurants that are based on the customer information and the prior restaurant reviews the alternating least squares is the best model to implement this .All the other options are not the correct model also they are not related to given scenario that's why they are incorrect options.

Write a Java code for the following requirement.
File encryption is the science of writing the contents of a file in a secret code.
The encryption program should work like a filter, reading the contents of one file, modifying the data into code, and then writing the code contents out to a second file. The second file will be a version of the first file, but written in a secret code.
Although there are complex encryption techniques, you should come up with a simple one of your own. For example, you could read the first file one character at a time and add 10 to the character code of each character before it is written to the second file.

Answers

Answer:

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Scanner;

public class EncryptFileData

{

public static void main(String args[]) throws IOException, FileNotFoundException

{

String inputFileName="input.txt";

String outputFileName="EncryptedFile.txt";

String decryptFileName="DecryptedFile.txt";

byte codeValue;

Scanner sc=new Scanner(System.in);

//Accept code value from user

System.out.println("Enter the value of code");

codeValue=sc.nextByte();

//Encrypt the input file

encryptFileContent(inputFileName, codeValue,outputFileName);

//Decrypt the input file

decryptFileContent(outputFileName, codeValue,decryptFileName);

}

//function to encrypt the input file

private static void encryptFileContent(String inputFileName,

byte encodeValue, String outputFileName) throws IOException, FileNotFoundException{

File file = new File(inputFileName);

FileInputStream fin = new FileInputStream(file);

FileOutputStream fout = new FileOutputStream(outputFileName);

try{

while(fin.available() != 0){

int inData = fin.read();

//For every character in input add code value and

//write result to file "EncryptedFile.txt"

fout.write(inData+encodeValue);

}

}finally{

fin.close();

fout.close();

}

}

//function to decrypt the encrypted file

private static void decryptFileContent(String inputFileName,

byte encodeValue, String outputFileName) throws IOException, FileNotFoundException{

File file = new File(inputFileName);

FileInputStream fin = new FileInputStream(file);

FileOutputStream fout = new FileOutputStream(outputFileName);

try{

while(fin.available() != 0){

int inData = fin.read();

//For every character in encrypted file

//subtract the code value from each character and

//write it to file "DecryptedFile.txt"

fout.write(inData-encodeValue);

}

}finally{

fin.close();

fout.close();

}

}

}

Explanation:

Given the following conditions to follow in the question;

=> "The encryption program should work like a filter, reading the contents of one file, modifying the data into code, and then writing the code contents out to a second file. "

=> "The second file will be a version of the first file, but written in a secret code."

Thus, the Java code is given below(one can just copy and run it to give a sample output of: Enter the value of code 1 2.

The Java code is;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Scanner;

public class EncryptFileData

{

public static void main(String args[]) throws IOException, FileNotFoundException

{

String inputFileName="input.txt";

String outputFileName="EncryptedFile.txt";

String decryptFileName="DecryptedFile.txt";

byte codeValue;

Scanner sc=new Scanner(System.in);

//Accept code value from user

System.out.println("Enter the value of code");

codeValue=sc.nextByte();

//Encrypt the input file

encryptFileContent(inputFileName, codeValue,outputFileName);

//Decrypt the input file

decryptFileContent(outputFileName, codeValue,decryptFileName);

}

//function to encrypt the input file

private static void encryptFileContent(String inputFileName,

byte encodeValue, String outputFileName) throws IOException, FileNotFoundException{

File file = new File(inputFileName);

FileInputStream fin = new FileInputStream(file);

FileOutputStream fout = new FileOutputStream(outputFileName);

try{

while(fin.available() != 0){

int inData = fin.read();

//For every character in input add code value and

//write result to file "EncryptedFile.txt"

fout.write(inData+encodeValue);

}

}finally{

fin.close();

fout.close();

}

}

//function to decrypt the encrypted file

private static void decryptFileContent(String inputFileName,

byte encodeValue, String outputFileName) throws IOException, FileNotFoundException{

File file = new File(inputFileName);

FileInputStream fin = new FileInputStream(file);

FileOutputStream fout = new FileOutputStream(outputFileName);

try{

while(fin.available() != 0){

int inData = fin.read();

//For every character in encrypted file

//subtract the code value from each character and

//write it to file "DecryptedFile.txt"

fout.write(inData-encodeValue);

}

}finally{

fin.close();

fout.close();

}

}

}

Write a function with this prototype:
#include
void numbers(ostream& outs, const string& prefix, unsigned int levels);
The function prints output to the ostream outs. The output consists of the String prefix followed by "section numbers" of the form 1.1., 1.2., 1.3., and so on. The levels argument determines how many levels the section numbers have. For example, if levels is 2, then the section numbers have the form x.y. If levels is 3, then section numbers have the form x.y.z. The digits permitted in each level are always '1' through '9'. As an example, if prefix is the string "THERBLIG" and levels is 2, then the function would start by printing:
THERBLIG1.1.THERBLIG1.2.THERBLIG1.3.and ends by printing:THERBLIG9.7.THERBLIG9.8.THERBLIG9.9.The stopping case occurs when levels reaches zero (in which case the prefix is printed once by itself followed by nothing else).The string class from has many manipulation functions, but you'll need only the ability to make a new string which consists of prefix followed by another character (such as '1') and a period ('.'). If s is the string that you want to create and c is the digit character (such as '1'), then the following statement will correctly form s:s = (prefix + c) + '.';This new string s can be passed as a parameter to recursive calls of the function.

Answers

Answer:

Following are the code to this question:

#include <iostream> //defining header file  

using namespace std;

void numbers(ostream &outs, const string& prefix, unsigned int levels); // method declaration

void numbers(ostream &outs, const string& prefix, unsigned int levels) //defining method number

{

string s; //defining string variable

if(levels == 0) //defining condition statement that check levels value is equal to 0

{

outs << prefix << endl;  //use value

}

else //define else part

{

for(char c = '1'; c <= '9'; c++) //define loop that calls numbers method

{

s = prefix + c + '.'; // holding value in s variable  

numbers(outs, s, levels-1); //call method numbers

}

}

}

int main() //defining main method

{

numbers(cout, "THERBLIG", 2); //call method numbers method that accepts value

return 0;

}

Output:

please find the attachment.

Explanation:

Program description:

In the given program, a method number is declared, that accepts three arguments in its parameter that are "outs, prefix, levels", and all the variable uses the address operator to hold its value. Inside the method a conditional statement is used in which string variable s and a conditional statement is used, in if the block it checks level variable value is equal to 0. if it is false it will go to else block that uses the loop to call method. In the main method we call the number method and pass the value in its parameter.  

Research and a well-written problem statement are important because

ANSWER: A) they give a clear understanding of the problem and its solution

Answers

Answer:

they give a clear understanding of the problem and its solution

Answer:

The answer is in the question,A

Explanation:

They give a clear understanding of the problem and its solution

Write a script that declares and sets a variable that’s equal to the total outstanding balance due. If that balance due is greater than $10,000.00, the script should return a result set consisting of VendorName, InvoiceNumber, InvoiceDueDate, and Balance for each invoice with a balance due, sorted with the oldest due date first. If the total outstanding balance due is less than $10,000.00, return the message "Balance due is less than $10,000.00."

Answers

Answer:

see explaination

Explanation:

SCRIPT :

drop table Vendor;

create table Vendor (VendorName varchar2(20), InvoiceNumber number (20), InvoiceDueDate date, Balance number(32,6));

insert into VENDOR (VENDORNAME,INVOICENUMBER,INVOICEDUEDATE,BALANCE) values ('ABC',121,TO_TIMESTAMP('01-01-18','DD-MM-RR HH12:MI:SSXFF AM'),1000);

Insert into Vendor (VENDORNAME,INVOICENUMBER,INVOICEDUEDATE,BALANCE) values ('XYZ',1212121,to_timestamp('02-01-18','DD-MM-RR HH12:MI:SSXFF AM'),100000);

declare

cursor c1 is select * from Vendor;

begin

for i in c1

loop

if I.BALANCE < 1001 then

DBMS_OUTPUT.PUT_LINE('Vendor Name '||I.VENDORNAME||', Invoice Number '||I.INVOICENUMBER||', Invoice DueDate '||I.INVOICEDUEDATE||',BALANCE '||I. BALANCE);

else

dbms_output.put_line('Vendor Name '||i.VendorName||', Invoice Number '||i.InvoiceNumber||', Invoice DueDate '|| i.InvoiceDueDate||' Balance due is less than $1000');

end if;

end LOOP;

end;

output : SCRIPT OUTPUT

table VENDOR dropped.

table VENDOR created.

1 rows inserted.

1 rows inserted.

anonymous block completed

dbms output :

Vendor Name ABC, Invoice Number 121, Invoice DueDate 01-JAN-18,BALANCE 1000

Vendor Name XYZ, Invoice Number 1212121, Invoice DueDate 02-JAN-18 Balance due is less than $1000

We have three containers whose sizes are 10 pints, 7 pints, and 4 pints, respectively. The 7-pint and 4-pint containers start out full of water, but the 10-pint container is initially empty. We are allowed one type of operation: pouring the contents of one container into another, stopping only when the source container is empty or the destination container is full. We want to know if there is a sequence of pourings that leaves exactly 2 pints in the 7-pint or 4-pint container.
(a) Model this as a graph problem: give a precise definition of the graph involved and state the specific question about this graph that needs to be answered.
(b) What algorithm should be applied to solve the problem?
(c) Find the answer by applying the algorithm.

Answers

Answer:

well, idc

Explanation:

Which body of water is most likely to be a marine ecosystem?

Answers

Answer:

The body of water that is most likely to be a marine ecosystem would be an estuary.

Explanation:

An estuary is a widened, often funnel-shaped mouth of a river, where fresh river water and salt sea water are mixed and thus brackish water is created, and where tidal differences can be observed. When a river flows as a system of branches, it is called a delta.

Estuaries often have a great natural value. They typically consist of swallows and salt marshes that are very rich in invertebrates and thus have a great attraction for birds, among other things.

What are examples of common computer software problems? Check all that apply
Pages with fading ink come out of a printer.
Programs suddenly quit or stop working.
O Documents close without warning.
O A video file stops playing unexpectedly.
A program updates to the latest version.
A computer crashes and stops working.

Answers

Answer:

its A C E

Explanation:

Modify the selectionSort function presented in this chapter so it sorts an array of strings instead of an array of ints. Test the function with a driver program. Use program 8-8 as a skeleton to complete.

Program 8-8

#include

#include

using namespace std;

int main()

{

const int NUM_NAMES = 20

string names [NUM_NAMES] = {"Collins, Bill", "Smith, Bart", "Allen, Jim", "Griffin, Jim", "Stamey, Marty", "Rose,Geri", "Taylor, Terri", "Johnson, Jill", "Allison, Jeff", "Looney, Joe", "Wolfe, Bill", "James, Jean", "Weaver, Jim", "Pore, Bob", "Rutherford, Greg", "Javens, Renee", "Harrison, Rose", "Setzer, Cathy", "Pike, Gordon", "Holland, Beth" };

//Insert your code to complete this program

return 0;

}

Answers

Answer:

Following are the method to this question:

void selectionSort(string strArr[], int s) //defining selectionSort method

{

int i,ind; //defining integer variables

string val; //defining string variable

for (i= 0; i< (s-1);i++) //defining loop to count value

  {

      ind = i; //assign loop value in ind variable

      val = strArr[i]; // strore array value in string val variable

      for (int j = i+1;j< s;j++) // defining loop to compare value

      {

          if (strArr[j].compare(val) < 0) //using if block to check value

          {

              val = strArr[j]; //store value in val variable  

              ind= j; //change index value

          }

      }

      strArr[ind] = strArr[i]; //assign string value in strArray  

      strArr[i] = val; // assign array index value

  }

}

void print(string strArr[], int s) //defining print method

{

  for (int i=0;i<s;i++) //using loop to print array values

  {

      cout << strArr[i] << endl; //print values

  }

  cout << endl;

}

Explanation:

In the above-given code, two methods "selectionsort and print" is declared, in which, both method stores two variable in its parameter, which can be described as follows:

Insides the selectionSort method, two integer variable "i and ind" and a string variable "val" is defined, inside the method a loop is declared, that uses the if block condition to sort the array. In the next line, another method print is declared that declared the loop to prints its value. Please find the attachment for full code.

Write a method that sums all the numbers in the major diagonal in an n x n matrix of double values using the following header: public static double sumMajorDiagonal(double[][] m) Write a test program that first prompts the user to enter the dimension n of an n x n matrix, then asks them to enter the matrix row by row (with the elements separated by spaces). The program should then print out the sum of the major diagonal of the matrix.

Answers

Answer:

Following are the code to this question:

import java.util.*; //import package for user input

public class Main //defining main class

{

public static double sumMajorDiagonal(double [][] m) //defining method sumMajorDiagonal

{

double sum = 0; //defining double variable sum

int i, j; //defining integer variable  

for(i = 0; i <m.length; i++) //defining loop to count row

{

for(j = 0; j < m.length; j++) //defining loop to count column  

{

if(i == j) //defining condition to value of i is equal to j

{

sum=sum+ m[i][j]; //add diagonal value in sum variable

}

}

}

return sum; //return sum

}

public static void main(String args[]) //defining main method

{

int n,i,j; //defining integer variable    

System.out.print("Enter the dimension value: "); //print message

Scanner ox = new Scanner(System.in); //creating Scanner class object for user input

n = Integer.parseInt(ox.nextLine()); //input value and convert value into integer

double m[][] = new double[n][n]; //defining 2D array

for(i = 0; i < m.length; i++)

{

String t = ox.nextLine(); // providing space value

String a[] = t.split(" "); // split value

for(j = 0; j < a.length; j++) //defining loop to count array value

{

double val = Double.parseDouble(a[j]); //store value in val variable

m[i][j] = val; //assign val in to array

}

}

double d_sum = sumMajorDiagonal(m); //call method store its return value in d_sum variable

System.out.println("diagonal matrix sum: "+ d_sum); //print sum

}

}

output:

Enter the dimension value: 3

1 2 3

1 2 3

1 2 4

diagonal matrix sum: 7.0

Explanation:

Program description:

In the given java language code, a method "sumMajorDiagonal" is declared, that accepts a double array "m" in its parameter, inside the method two integer variable "i and j" and one double variable "sum" is defined, in which variable i and j are used in a loop to count array value, and a condition is defined that checks its diagonal value and use sum variable to add its value and return its value. In the main method first, we create the scanner class object, that takes array elements value and passes into the method, then we declared a double variable d_sum that calls the above static method, that is  "sumMajorDiagonal" and print its return value with the message.

A Transmission Control Protocol (TCP) connection is in working order and both sides can send each other data. What is the TCP socket state?

Answers

Answer:

The TCP socket state will be as 'Closed'.

Explanation:

TCP seems to be a framework that describes how well a web discussion can be established and maintained through which software applications could access information.

The accompanying is the finished status whenever the connection is suspended by TCP:

CLOSE-WAIT:

This means that the end destination had already chosen to take a similar requirement from the 'remote endpoint.'

CLOSING:

This indicates the position for the cancellation of server access verification from either the faraway TCP.

LAS-ACK:

This indicates the view for approval including its extermination previously sent through the cell tower TCP.

TIME-WAIT:

This symbolizes a lengthy delay for all the remote to accept verification of its cancellation request.

CLOSED:

This means that there is no link region or anything like that.

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