windows can create a mirror set with two drives for data redundancy which is also known as
Answer:
Raid
Explanation:
Which component allows you to enjoy cinematic
or 3-D effects on your computer?
A.Cache memory
B.Ethernet port
C.external hard drive
D.video and sound cards
external hard drive
external hard drive
Answer:
Amswer would be D
Explanation:
Account Balance Design a hierarchy chart or flowchart for a program that calculates the current balance in a savings account. The program must ask the user for:________.
A- The starting balance
B- The total dollar amount of deposits made
C- The total dollar amount of withdrawals made
D- The monthly interest rate
Once the program calculates the current balance, it should be displayed on the screen.
Answer:
a. starting balance
Explanation:
A program that calculates the current balance of a savings should ask the user for the starting balance and then ask for the annual interest rate. A loop should then iterate once for every month of the savings period in order to perform other tasks such as asking the user for the total amount deposited into the account, the total amount withdrawn from the account, and calculate the interest rate. The program will then proceed to display the result at the end of the savings period.
You are a network technician for a small corporate network that supports 1000 Mbps (Gigabit) Ethernet. The manager in the Executive Office says that his network connection has gone down frequently over the past few days. He replaced his Ethernet cable, but the connection problem has continued. Now his network connection is either down or very slow at all times. He wants you to install a new 1000 Mbps Ethernet network card in his workstation to see if that solves the problem.
If the new card does not resolve the issue, you will need to perform troubleshooting tasks to find the cause of the issue and confirm that the problem is fixed after you implement a solution. Following are some troubleshooting tasks you can try:
• Use the Network and Sharing Center and the ipconfig command on the Exec workstation to check for a network connection or an IP address.
• Look at the adapter settings to see the status of the Ethernet connection.
• Use the ping command to see if the workstation can communicate with the server in the Networking Closet. (See the exhibit for the IP address.)
• View the network activity lights for all networking devices to check for dead connections. In this lab, your task is to complete the following:
1. Install a new Ethernet adapter in one of the open slots in the Exec workstation per the manager's request.
2. Make sure that the new adapter is connected to the wall outlet with a cable that supports Gigabit Ethernet.
3. Resolve any other issues you find using the known good spare components on the Shelf to fix the problem and restore the manager's internet connection.
After you replace the network adapter and resolve the issues you found while troubleshooting, use the Network and Sharing Center to confirm that the workstation is connected to the network and the internet
If necessary, click Exhibits to see the network diagram and network wiring schematics.
Answer:
The step by step explanation
Explanation:
Before doing anything, the first thing to do is to select the 100BaseTX network adapter and reconnect the Cat5e cable. The 100BaseTX network adapter supports Fast
Ethernet which is all that is required.
Now do the following steps:
Step one
In Office 2, switch to the motherboard view of the computer (turning off the workstation as necessary).
Step two
On the Shelf, expand the Network Adapters category.
Step three
Identify the network adapter that supports Fast Ethernet 100BaseTX. Drag the network adapter from the Shelf to a
free PCI slot on the computer.
Step four
To connect the computer to the network, switch to the back view of the computer.
Step five
Drag the Cat5 cable connector from the motherboard's NIC to the port of the 100BaseTX network adapter.
Step six
To verify the connection to the local network and the Internet, switch to the front view of the computer.
Step seven
Click the power button on the computer case.
Step eight
After the workstation's operating system is loaded, click the networking icon in the notification area and click
Open Network and Sharing Center. The diagram should indicate an active connection to the network and the
Internet.
For one to be able to confirm the speed of the connection, it can be done by clicking the Local Area Connection link in the Network and
Sharing Center.
Numbering exception conditions, which often uses hierarchical numbering, in a fully developed use case description is helpful to _______. a. tie the exception condition to a processing step b. show which exception conditions are subordinate to other exceptions c. provide an identifier for each exception condition d. tie exception conditions to other diagrams or descriptions
Answer:
a) tie the exception condition to a processing step
Explanation:
Numbering exception conditions, in a fully developed use case description is helpful to tie the exception condition to a processing step
The fully developed use case description is useful for the documentation of the context, purpose, description, conditions, and workflow of each use case. Activity diagrams give a graphical image of the use case workflow and serve the purpose of illustrating the alternative paths through a business process.
I need the answer to the below question *ASAP*
2 4 9
Explanation:
Basically what I thought was the way was, since 2 is first, then its 1, then since 4 is second, it's added second, lastly to get the last oneI added them all and got 9 so that's third.
Answer:
Does not exist.
Explanation:
The answer is not in the option:
Let's analyse the code:
random.randint(2,4)
This means take in random integer numbers starting with 2 and ending with 4.
Meaning numbers : 2, 3 and 4
Next math.pow(a,2) means a× a = a2
So when we input 2 the function;
math.pow(a,2) returns an integer 4
You do same for input 3 , it returns 9.
For input 4 it returns 16.
And the result is encapsulated in the function string(). Meaning display the result as a string:
4 9 16
Output values below an amount
Write a program that first gets a list of integers from input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, and output all integers less than or equal to that value.
Ex: If the input is 5 50 60 140 200 75 100, the output is:
For coding simplicity, follow every output value by a space, including the last one.
Such functionality is common on sites like Amazon, where a user can filter results.
LAB
ACTIVITY
8.3.1: LAB: Output values below an amount
0 / 10
Submission Instructions
These are the files to get you started.
main.cpp
Download these files
Compile command
g++ main.cpp -Wall -o a.out
We will use this command to compile your code
Answer:
def output_ints_less_than_or_equal_to_threshold(user_values, upper_threshold):
for value in user_values:
if value < upper_threshold:
print(value)
def get_user_values():
n = int(input())
lst = []
for i in range(n):
lst.append(int(input()))
return lst
if __name__ == '__main__':
userValues = get_user_values()
upperThreshold = int(input())
output_ints_less_than_or_equal_to_threshold(userValues, upperThreshold)
Explanation:
If a large organization wants software that will benefit the entire organization—what's known as enterprise application software—the organization must develop it specifically for the business in order to get the functionality required.
Answer:
Hello your question lacks the required options which is : True or False
answer : TRUE
Explanation:
If a large organization wants to develop a software that will benefit the entire organization such software will be known as an enterprise application software and such application software must be developed in such a way that it meets the required purpose for which the organization is designed it for.
An enterprise application software is a computer software developed specially to satisfy the specific needs of an entire organization inside of the individual needs of the people working in the organization.
Devon keeps his commitments, submits work when it's due, and shows up when scheduled. What personal skill does Devon
demonstrate?
Attire
Collaboration
Dependability
Verbal
It’s D
Answer:
dependability
Explanation:
devon keeps his commitment
The personal skill that's demonstrated by Devin is dependability.
Dependability simply means when an individual is trustworthy and reliable. Dependability simply means when a person can be counted on and relied upon.
In this case, since Devon keeps his commitments, submits work when it's due, and shows up when scheduled, it shows that he's dependable.
It should be noted that employers love the people that are dependable as they can be trusted to have a positive impact on an organization.
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What is a manifold on a vehicle
Answer:
the part of an engine that supplies the fuel/air mixture to the cylinders
Explanation:
There is also an exhaust manifold that collects the exhaust gases from multiple cylinders into a smaller number of pipes
) If FIFO page replacement is used with five page frames and eight pages, how many page faults will occur with the reference string 236571345157245 if the five frames are initially empty?
Answer:
There are a total of 8 page faults.
Explanation:
In FIFO page replacement, the requests are executed as they are received. The solution is provided in the attached figure. The steps are as follows
Look for the digit in the pages. if they are available, there is no page fault. If the digit does not exist in the page frames it will result in an error.
Suppose you have 9 coins and one of them is heavier than others. Other 8 coins weight equally. You are also given a balance. Develop and algorithm to determine the heavy coin using only two measurements with the help of the balance. Clearly write your algorithm in the form of a pseudocode using the similar notation that we have used in the class to represent sorting algorithms
Answer:
Following are the algorithm to this question:
Find_Heavier_Coins(Coin[9]):
i) Let Coin[] Array represent all Coins.
ii) Divide coin[] into 3 parallel bundles and each has three coins, example 0-2, 3-5, 6-8 indicate a1 a2 a3
iii) Randomly select any two bundles and place them in balance [say a1 and a2]
iv) If Weigh of a1 and a2 has same:
// checking that if a3 has heavier coin
Choose any two 6-8 coins and place them onto balance [say 6 and 8]
If those who weigh has the same weight:
Third coin is coin heavier [say 7]
else:
The coin [6 or 8] is the one which is heavier on the balance
else:
//The coin has the package which would be heavier on the balance [say a1]
Select any two coins on balance from of the heavier package [say 0 and 1]
If they weigh the same weight:
Third coin is coin heavier [say 2]
else:
The coin that is heavier on the balance is the [or 0]
Explanation:
In the above-given algorithm code, a method Find_Heavier_Coins is declared which passes a coin[] array variable in its parameters. In the next step, if conditional block is used that checks the values which can be described as follows:
In the first, if block is used that checks a1 and a2 values and uses another if block in this it will print a3 value, else it will print 6 to 8 value. In the another, if the block it will check third coins value and prints its value if it is not correct it will print first coin valueWrite a program that displays the following pattern: ..\.\* .\.\*** \.\***** ******* \.\***** .\.\*** ..\.\* That is, seven lines of output as follows: The first consists of 3 spaces followed by a star. The second line consists of 2 spaces followed by a 3 stars. The third consists of one space followed by 5 stars, and the fourth consists just of 7 stars. The fifth line is identical to third, the sixth to the second and the seventh to the first. Your program class should be called StarPattern
Answer:
public class StarPattern {
public static final int MAX_ROWS = 7;
public static void main(String []args){
for (int row = 1; row <= MAX_ROWS; row++) {
int numOfSpaces = getNumberOfSpaces(row);
int numOfStars = MAX_ROWS - (getNumberOfSpaces(row) * 2);
String spaces = printSpaces(numOfSpaces);
String stars = printStars(numOfStars);
System.out.println(spaces + stars);
}
}
public static int getNumberOfSpaces(int row) {
int rowOffset = (MAX_ROWS / 2) + 1;
return Math.abs(row-rowOffset);
}
public static String printSpaces(int num) {
String result = "";
for (int i = 0; i < num; i++) {
result += " ";
}
return result;
}
public static String printStars(int num) {
String result = "";
for (int i = 0; i < num; i++) {
result += "*";
}
return result;
}
}
Explanation:
So it sounds we need to make a diamond shape out of asterisks like this:
*
***
*****
*******
*****
***
*
There are 7 rows and each row has up to 7 characters. The pattern is also symmetrical which makes it easier. Before writing any code, let's figure out how we are going to determine the correct amount of spaces we need to print. There are a lot of ways to do this, but I'll just show one. Let's call the 4th row y=0. Above that we have row 3 which would be y=-1, and below is row 5 which is y=1. With 7 rows, we have y=-3 through y=3. The absolute value of the y value is how many spaces we need.
To determine the number of stars, we just double the number of spaces, then subtract this number from 7. This is because we can imagine that the same amount of spaces that are printed in front of the stars are also after the stars. We don't actually have to print the second set of spaces since it is just white space, but the maximum number of characters in a row is 7, and this formula will always make sure we have 7.
I hope this helps. If you need help understanding any part of the code, jsut let me know.
The U.S. continues to become more dependent on the global domain within the information environment consisting of the interdependent network of information technology infrastructures, including the Internet, telecommunications networks, computer systems, and embedded processors and controllers. It is imperative that we safeguard this domain known as _____.
Answer:
cyberspace
Explanation:
It is the notional environment in which communication over computer networks occurs.
It is imperative that we safeguard this domain known as cyberspace.
What is cyberspace?The meaning of the cyberspace is the climate of the Internet.
There is large network of computers connected together in offices or organizations to explore the internet. The cyberspace has formed the first important needed thing in this century without which nothing can be done in personal space or in any companies.
The U.S. continues to become more dependent on the global domain within the information environment consisting of the interdependent network of information technology infrastructures, including the Internet, telecommunications networks, computer systems, and embedded processors and controllers.
So, we safeguard this domain known a cyberspace.
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Larry sees someone he finds annoying walking toward him. Larry purposely looks away and tries to engage in conversation with someone else. Which type of eye behavior is Larry using?
a. mutual lookingb. one-sided lookingc. gaze aversiond. civil inattentione. staring
Answer:
one-sided looking
Explanation:
Larry purposely looks away
Java programing:
Add two more statements to main() to test inputs 3 and -1. Use print statements similar to the existing one (don't use assert)
import java.util.Scanner;
public class UnitTesting {
// Function returns origNum cubed
public static int cubeNum(int origNum) {
return origNum * origNum * origNum;
}
public static void main (String [] args) {
System.out.println("Testing started");
System.out.println("2, expecting 8, got: " + cubeNum(2));
/* Your solution goes here */
System.out.println("Testing completed");
return;
}
}
__________
Answer:
import java.util.Scanner;
public class UnitTesting {
// Function returns origNum cubed
public static int cubeNum(int origNum) {
return origNum * origNum * origNum;
}
public static void main (String [] args) {
System.out.println("Testing started");
System.out.println("2, expecting 8, got: " + cubeNum(2));
System.out.println("3, expecting 27, got: " + cubeNum(3));
System.out.println("-1, expecting -1, got: " + cubeNum(-1));
System.out.println("Testing completed");
return;
}
}
Explanation:
Added statements are highlighted.
Since the cubeNum function calculates the cube of the given number and we are asked to write two statements to test inputs 3 and -1, pass the parameters 3 and -1 to the function called cubeNum and print the results using print statements
For this assignment, you will create flowchart using Flow gorithm and Pseudocode for the following program example: Hunter Cell Phone Company charges customer's a basic rate of $5 per month to send text messages. Additional rates apply as such:The first 60 messages per month are included in the basic billAn additional 10 cents is charged for each text message after the 60th message and up to 200 messages.An additional 25 cents is charged for each text after the 200th messageFederal, state, and local taxes add a total of 12% to each billThe company wants a program that will accept customer's name and the number of text messages sent. The program should display the customer's name and the total end of the month bill before and after taxes are added.
Answer:
The pseudocode is as given below while the flowchart is attached.
Explanation:
The pseudocode is as follows
input customer name, number of texts
Set Basic bill=5 $;
if the number of texts is less than or equal to 60
Extra Charge=0;
If the number of texts is greater than 60 and less than 200
number of texts b/w 60 and 200 =number of texts-60;
Extra Charge=0.1*(number of texts b/w 60 and 200);
else If the number of texts is greater than 200
number of texts beyond 200 =number of texts-200;
Extra Charge=0.25*(number of texts beyond 200)+0.1*(200-60);
Display Customer Name
Total Bill=Basic bill+Extra Charge;
Total Bill after Tax=Total Bill*1.12;
When law enforcement becomes involved, the need may arise to freeze systems as part of the evidence. There is also the likelihood that the incident will become known publicly. Do you think these issues play a significant part in the decision to involve law enforcement? Why or why not? Can you name some situations in which you believe that large organizations have decided not to involve law enforcement?
Answer:
Costs will cover a need for more customer data. The further explanation is given below.
Explanation:
It's the greatest problem for almost every company to provide the data with security. This is possible for highly trained practitioners and the technical staff to take charge of it. Complicated technologies would have been going to run together again to withstand these types of jobs.Such problems play a major part in the decision-making process affecting the law enforcement authorities to locate the suspects to strengthen the organization.To do something like this, there seem to be a lot of other good initiatives out there doing it.There have been some cases in which major corporations have chosen not to include law enforcement:
There are many more electronic corruption going on, including money robbery, asset fraud, as well as machine assaults. In such a bigger case, numerous institutions, such as large-scale ones, have gone through these circumstances to evaluate law enforcement to come to terms with cybersecurity.Universal Containers has two customer service contact centres and each focuses on a specific product line. Each contact centre has a varying call volume, contributing to a high operational cost for the company. Universal Containers wants to optimize the cost without compromising customer satisfaction.; What can a consultant recommend to accomplish these objectives?
A. Prioritize customer calls based on their SLA
B. Cross-train agents on both product lines
C. Enable agents to transfer calls to other agents
D. Implement a customer self-service portal
Answer:
B. Cross-train agents on both product lines
D. Implement a customer self-service portal
Explanation:
Cross-training is a way of teaching employees different aspects of the job so that they can have a measure of flexibility in the discharge of duties. Managers find this approach to be effective as they believe it saves cost and maximizes the usefulness of employees. It also helps to serve and satisfy a wider range of customers.
So for Universal Containers seeking to optimize cost without compromising customer satisfaction while managing two customer service contact centers, an effective way of dealing with the large call volumes is cross-training agents on both product lines so that they can attend to a wider range of customers. Cross-training agents on both product lines would make them more knowledgeable of the services being offered and this would minimize the need to transfer calls as all agents can provide information on the various products.
Implementing a customer self-service portal would also reduce the workload on the customer service agents as customers can access the information they need on their own.
Create an empty list called resps. Using the list percent_rain, for each percent, if it is above 90, add the string ‘Bring an umbrella.’ to resps, otherwise if it is above 80, add the string ‘Good for the flowers?’ to resps, otherwise if it is above 50, add the string ‘Watch out for clouds!’ to resps, otherwise, add the string ‘Nice day!’ to resps. Note: if you’re sure you’ve got the problem right but it doesn’t pass, then check that you’ve matched up the strings exactly.
Answer:
resps = []
percent_rain = [77, 45, 92, 83]
for percent in percent_rain:
if percent > 90:
resps.append("Bring an umbrella.")
elif percent > 80:
resps.append("Good for the flowers?")
elif percent > 50:
resps.append("Watch out for clouds!")
else:
resps.append("Nice day!")
for r in resps:
print(r)
Explanation:
*The code is in Python.
Create an empty list called resps
Initialize a list called percent_rain with some values
Create a for loop that iterates through the percent_rain. Check each value in the percent_rain and add the required strings to the resps using append method
Create another for loop that iterates throgh the resps and print the values so that you can see if your program is correct or not
Answer:
resps = []
for i in percent_rain:
if i > 90:
resps.append("Bring an umbrella.")
elif i >80:
resps.append("Good for the flowers?")
elif i > 50:
resps.append("Watch out for clouds!")
else:
resps.append("Nice day!")
Explanation:
Write an INSERT statement that adds these rows to the Invoice_Line_Items table:
invoice_sequence: 1 2
account_number: 160 527
line_item_amount: $180.23 $254.35
line_item_description: Hard drive Exchange Server update
Set the invoice_id column of these two rows to the invoice ID that was generated
by MySQL for the invoice you added in exercise 4.
Answer:
Insertion query for first row :
INSERT into Invoice_Line_Items (invoice_sequence, account_number, line_item_amount, line_item_description) Values (1, 160, '$180.23', "Hard drive Exchange");
Insertion query for second row :
INSERT into Invoice_Line_Items (invoice_sequence, account_number, line_item_amount, line_item_description) Values (2, 527, '$254.35', "Server update");
Explanation:
* In SQL for insertion query, we use INSERT keyword which comes under DML (Data manipulation Language).
* Statement is given below -
INSERT into Table_name (column1, column2, ....column N) Values (value1, value2, .....value N);
* With the use of INSERT query we can insert value in multiple rows at a same time in a table which reduces our work load.
Write a function PrintShampooInstructions(), with int parameter numCycles, and void return type. If numCycles is less than 1, print "Too few.". If more than 4, print "Too many.". Else, print "N: Lather and rinse." numCycles times, where N is the cycle number, followed by "Done.". End with a newline. Example output for numCycles = 2:
1: Lather and rinse.
2: Lather and rinse.
Done.
Hint: Define and use a loop variable.
Sample program:
#include
using namespace std;
int main() {
PrintShampooInstructions(2);
return 0;
}
Answer:
public static void PrintShampooInstructions(int numberOfCycles){
if (numberOfCycles<1){
System.out.println("Too Few");
}
else if(numberOfCycles>4){
System.out.println("Too many");
}
else
for(int i = 1; i<=numberOfCycles; i++){
System.out.println(i +": Lather and rinse");
}
System.out.println("Done");
}
Explanation:
I have used Java Programming language to solve this
Use if...elseif and else statement to determine and print "Too Few" or "Too Many".
If within range use a for loop to print the number of times
Answer:
#In Python
def shampoo_instructions(num_cycles):
if num_cycles < 1: ///
print ('Too few.') ///
elif num_cycles > 4:
print ('Too many.')
else:
i = 0
while i<num_cycles:
print (i+1,": Lather and rinse.")
i = i + 1
print('Done.')
user_cycles = int(input())
shampoo_instructions(user_cycles)
Explanation:
def shampoo_instructions(num_cycles): #def function with loop
if num_cycles < 1: #using 1st if statement
print('Too few.')
elif num_cycles > 4:
print ('Too many.')
else:
i = 0
while i<num_cycles:
print (i+1,": Lather and rinse.")
i = i + 1
print('Done.')
user_cycles = int(input())
shampoo_instructions(user_cycles)
Write a program in python that can compare the unit (perlb) cost of sugar sold in packages with different weights and prices. The program prompts the user to enter the weight and price of package 1, then does the same for package 2, and displays the results to indicate sugar in which package has a better price. It is assumed that the weight of all packages is measured in lb. The program should check to be sure that both the inputs of weight and price are both positive values.
Answer:
weight1 = float(input("Enter the weight of first package: "))
price1 = float(input("Enter the price of first package: "))
weight2 = float(input("Enter the weight of second package: "))
price2 = float(input("Enter the price of second package: "))
if weight1 > 0 and price1 > 0 and weight2 > 0 and price2 > 0:
unit_cost1 = price1 / weight1
unit_cost2 = price2 / weight2
if unit_cost1 < unit_cost2:
print("Package 1 has a better price.")
else:
print("Package 2 has a better price.")
else:
print("All the entered values must be positive!")
Explanation:
*The code is in Python.
Ask the user to enter the weight and the price of the packages
Check if the all the values are greater than 0. If they are, calculate the unit price of the packages, divide the prices by weights. Then, compare the unit prices. The package with a smaller unit price has a better price.
If all the entered values are not greater than 0, print a warning message
Consider the following concurrent tasks, in which each assignment statement executes atomically. Within a task, the statements occur in order. Initially, the shared variables x and y are set to 0.
Task 1 Task 2
x = 1 y = 1
a = y b = x
At the end of the concurrent tasks, the values ofa andb are examined. Which of the following must be true?
I. ( a == 0 ) ( b == 1 )
II. ( b == 0 ) ( a == 1 )
III. ( a == 1 ) ( b == 1 )
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) I, II, and III
Answer:
(D) I and II only
Explanation:
Concurrent tasks is when there is more than one task to be performed but the order of the task is not determined. The tasks occur asynchronously which means multiple processors occur execute input instruction simultaneously. When x =1 and y = 1, the concurrent task will be performed and the a will be zero or either 1.
During an investigation of a cybercrime, the law enforcement officers came across a computer that had the hard drive encrypted. Chose the best course of action they should take to access the data on that drive.
a. Use image filtering techniques to see what's behing the encrypted files.
b. Try to convince the owner of the computer to give you to decryption key/password.
c. Identify the encryption algorithm and attempt a brute force attack to get access to the file.
d. Disconnect the hard drive from power so the encryption key can be exposed on the next power up.
e. Try to copy the drive bit by bit so you can see the files in each directory.
Answer:
b. Try to convince the owner of the computer to give you to decryption key/password.
Explanation:
Encrypted hard drives have maximum security and high data protection. to access them you need to enter a password to unlock them.
The image filtering technique is a method that serves to selectively highlight information contained in an image, for which it does not work.
The encryption algorithm is a component used for the security of electronic data transport, not to access data on an encrypted hard drive.
The encryption key is used in encryption algorithms to transform a message and cannot be exposed by disconnecting the hard drive from its power source.
Consider a load-balancing algorithm that ensures that each queue has approximately the same number of threads, independent of priority. How effectively would a priority-based scheduling algorithm handle this situation if one run queue had all high-priority threads and a second queue had all low-priority threads
Answer and Explanation:
Consider giving greater priority to both the queue contains the national priority comment section as well as, therefore, first method the thread throughout this queue.If the item from either the major priority queue becomes decoupled, if the balancing between some of the number of comments in some of these two queues becomes disrupted, instead decouple one thread from either the queue comprising the low-value thread as well as position that one in the queue with the highest - priority loop to match the number of connections in such 2 queues.Whenever a new thread arrives with some kind of proper description, a friendly interface could've been introduced to just the queue contains fewer threads to achieve stability.Therefore, the load-balancing requirements for keeping about the same number of threads would be retained and the meaningful matter of top priority thread would also be retained.
Based on the information given, it is important to give higher priority to the queue that contains the high priority thread.
Also, once an element from the high priority queue is dequeued, then dequeue one thread from the queue containing low priority thread and this will be enqueued into the queue having high priority thread in order to balance the number of threads.
Since the priority queue automatically adjusts the thread, hence the removal of the thread from one priority queue to another is not a problem.
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Suppose that class OrderList has a private attribute double cost[100] which hold the cost of all ordered items, and a private attributes int num_of_items which hold the number of items ordered. For example, if num_of_items is 5, then cost[0], cost[1], ..., cost[4] hold the cost of these 5 items. Implement the member function named total_cost which returns the total cost of this OrderList.
Answer:
OrderList.java
public class OrderList { private double cost[]; private int num_of_items; public OrderList(){ cost = new double[100]; } public double total_cost(){ double total = 0; for(int i=0; i < num_of_items; i++){ total += cost[i]; } return total; } }Main.java
public class Main { public static void main(String[] args) { OrderList sample = new OrderList(); double totalCost = sample.total_cost(); } }Explanation:
Firstly, define a class OrderList with two private attributes, cost and num_of_items (Line 1-3). In the constructor, initialize the cost attribute with a double type array with size 100. Next, create another method total_cost() to calculate the total cost of items (Line 9-15). To implement the total_cost member function, create an OrderList instance and use that instance to call the total_cost() and assign it to totalCost variable.
Which one of these is not a way of identifying that a website is secure?
a) Message on website
b) URL begins 'https://'
c) Colour of address bar
d) Padlock symbol
Answer:
B
Explanation:
all url's begin with https://
7d2b:00a9:a0c4:0000:a772:00fd:a523:0358 What is IPV6Address?
Answer:
From the given address: 7d2b:00a9:a0c4:0000:a772:00fd:a523:0358
We can see that:
There are 8 groups separated by a colon.Each group is made up of 4 hexadecimal digits.In general, Internet Protocol version 6 (IPv6) is the Internet Protocol (IP) which was developed to deal with the expected anticipation of IPv4 address exhaustion.
The IPv6 addresses are in the format of a 128-bit alphanumeric string which is divided into 8 groups of four hexadecimal digits. Each group represents 16 bits.
Since the size of an IPv6 address is 128 bits, the address space has [tex]2^{128}[/tex] addresses.
A new operating system uses passwords that consist of three characters. Each character must be a digit between 0 and 9. For example, three distinct possible passwords are 123, 416, and 999. The system uses 32-bit salt values. The system also allows one login attempt every second and never locks out users regardless of how many failed attempts occur. If an adversary has obtained a copy of the password file and conducts an offline brute-force attack by trying every password combination until the adversary obtains username and password combination. The use of a 32-bit salt value
Answer:
Brute force is technique that is used for cracking password
In this case the system uses only three characters(0-9). By applying Brute force attack in "hit and try" manner we easily crack the password.
Explanation:
Solution
There are a wide variety of password cracking mechanisms.Brute force is one of the popular password cracking technique.Brute force attack is generally used to crack small passwords.
In the given example the system uses only three characters(0-9).By using Brute force attack in "hit and try" manner we easily crack the password.There are only 10 possible passwords for this type of system.Because we can arrange 0-9 only in 10 ways.But for Systems with long passwords it is difficult to find it in hit and try manner.But instead of having plain password each password have a random salt value.
In a system of 32 bit salt value there are 2^32 different key values.
By increasing the salt value from 32 bits to 64 bits there are 2^64 different key values.It increases the time taken to crack a password for an attacker.so by changing salt value from 32 to 64 bits will make it more harder for the adversary's attack to be successful.