Suppose that a Web server runs in Host C on port 80. Suppose this Web server uses persistent connections, and is currently receiving requests from two different Hosts, A and B. Are all of the requests being sent through the same socket at Host C?

Answers

Answer 1

Answer:

No.  

All the requests are not being sent through the same socket as host C.

Explanation:

For every of the persistent connections, the web server creates a separate connection socket.

The various connection sockets created, are identified using the following four  details:

source  IP  address, source  port  number, destination  IP address, destination  port  number

When port C receives an IP datagram, it examines these four fields in the datagram to determine which socket to pass the payload of the Transmission Control Protocol (TCP) segment. The TCP works with the Internet Protocol (IP), which defines how computers send packets of data to each other.

Requests from hosts A and B will pass through different ports. This is because although they have the same destination port of 80, they have different source IP addresses, due to the fact that they are from different hosts.

The two requests will pass through different sockets because they have  different  values  for  source  IP  addresses.


Related Questions

Who would be a tippee for purposes of insider trading? a. a janitor who gathers information by reading files on corporate counsel's desk b. an MBA student who tracks the market very closely c. a broker who once worked in the pharmaceutical industry d. All of the above would be tippees.

Answers

Answer:

Option A is correct.

Explanation:

A janitor that collects data through reviewing reports on a business counsel's desk could be a tippee for insider trading activities.

Probably, the justification for insider trading remains wrong being that it offers each insider the undue benefit on and around the marketplace, gets the insider's preferences beyond them for which they assume the trustee responsibility, as well as enables the insider to unfairly manipulate the cost of the inventory of a business.

So, the following are the reason the other options are not correct according to the given scenario.

In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of ____________________ keys.

Answers

In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of surrogate keys.

Explanation:

A surrogate key is a unique identity as an object or entity. It is used as an object in the database and as an entity in the modern world. Surrogate key is not a natural key hence it cannot be derived from application data.

Advantages of using surrogate key:

They are uniqueThey have uniform rulesIt allows unlimited valuesIt stands the test of time

What is the easiest way to provide sufficient bandwidth for VoIP plus data on your LAN? Group of answer choices Over-provision the network Use gigabit Ethernet Use fiber optic cable Use a high-compression codec

Answers

Answer:

Over-provision the network.

Explanation:

Over-provision of the network is the simplest method to have an appropriate VoIP bandwidth plus information on the Local Area Network.

Over-provision is typically seen to secure network efficiency from changes in traffic. Usually, it includes dimensioning connections such that that the bandwidth meets by some margin that projected data pressure, which would be chosen to indicate that the connection can handle both anticipated and unforeseen traffic variations.

The arrival of personal computer technology gave rise to client server networks that replaced traditional mainframe and minicomputers for many business uses. Companies such as Wang, Control Data, and DEC did not survive this revolutionized computer industry. What happened in this instance is a prime example of a(n):

Answers

Answer:

The replacement of traditional mainframe and minicomputers  is a prime example of technological paradigm shift.

Explanation:

As the change of traditional mainframe and minicomputers to personal computers is due to the technological advancements, which led to creation of client server networks. This paradigm shift is the technological shift as the main reason for the shift is due to the technical advancement and enhancement.

If you need to provide a storage server with fault tolerance through the use of multiple paths between the server and the actual storage, what feature should you install?

Answers

Answer:

The correct answer to the following question will be "Multipath I/O ".

Explanation:

Multipath I/O going to minimize the impact of a failure of either the host network interface by offering an alternative access route through storage media as well as a Windows OS.

It offers the possibility for someone like you to support high accessibility and significantly improve efficiency based on your SAN setup.Offer valuable even fault resistance to a terminal server by using different objectives or paths.

So, you should install this Multipath I/O.

____________________’s law is the mathematical formula that describes belief that the large and powerful computers will always be more cost effective than smaller ones.

Answers

Answer:

Grosch

Explanation:

Grosch 's law is the mathematical formular that belief that large and powerful computers will be more costly than the smaller one because the functions and performance of the large and powerful computers cannot be compared with the smaller ones. He believes that the more costly a computer is the high the performance will be which means that low cost computer are not up to standard of a high cost computer in the market.

You are leading a project that will collect vast amounts of data, which will need processing. In your research, you learn about a technology in which volunteers can install a small application on personal computers to receive, process and return information to your organization. Using multiple systems to process large amounts of data in this way will be less expensive than using a single supercomputer to conduct this same task. Which term describes this technology?

Answers

Answer:

Grid Computing

Explanation:

Grid computing is a processor architecture that combines computer resources from various domains to reach a main objective. In grid computing, the computers on the network can work on a task together, thus functioning as a supercomputer.

Cheers

Answer:

Grid Computing

Explanation:

Grid computing is the physical interconnection of computers to perform tasks that may be carried out by a supercomputer. These tasks may include solving a very complex problem, analyzing large amounts of data, weather modeling or earthquake simulation.

Grid middleware is a software that helps in setting up a computing grid, this software provides communication between the systems by translating and transferring information of one node to another. This makes grid computing a form of peer-to-peer computing or distributed computing.

Some of the advantages is that:

It utilizes existing hardware optimallyIt makes it easy to work with other organization or companiesIt groups systems to work like a supercomputer, therefore, solving complex problems within a short timeframe.

Use two variables k and total to write a for loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. Thus, your code should put 1*1 + 2*2 + 3*3 +... + 49*49 + 50*50 into total. Use no variables other than k and total.

Answers

Answer:

Following are the statement in the C++ Language  

int total=0; // variable declaration

int k;// variable declaration

for(k=0;k<50;k++) // iterating the for loop

{

   total=total+k*k;// perform operation  and calculating square of 50 number

}

Explanation:

Following is the description of the statement  

Declared a variable "total" and "k" of the "int" type initialized the total variable with the value 0. Iterating the for loop for calculating the squares of the first 50 counting numbers. So we will execute the loop less then 50 . In this loop, we counted the square of 50 number in the "total" variable.

Different sites in the forest of Papua New Guinea have been found to have very similar species compositions of herbivorous insects, even though each site has a large number of species. These herbivorous insects are therefore said to have low _______ diversity.

Answers

Answer:

Alpha

Explanation:

Based on the description, you can conclude that the alpha diversity is high.

Cheers

Answer:

low beta diversity

Explanation:

Beta diversity is a measure of the differences in the composition of species among different environments. In order words, it shows how different in terms of species composition is among different environments.  

A high beta diversity indicates there is a little similarity in the composition of species among different environmental sites, while a low beta diversity indicates there is high similarity in the composition of species.

Since the species of herbivorous insects among different sites in the forest of Papua New Guinea are very similar in composition, we can say they have low beta diversity.

Sandy is replacing her broken laptop LCD screen with a new screen. During disassembly, she notices two cables that wrap around the screen and connect to the mini-PCIe card inside the laptop.

What will happen if Sandy breaks one of these cables?

Answers

Answer:

She will not be able to connect to Wi-Fi with the laptop.

Explanation:

The mini pci-e card is simply referred to as the Wi-Fi card. It is the work of the mini pci-e to enable the computer or laptop have a Wi-Fi access when it is in perfect condition.

When any of the parts, that is the black and white cables is broken or faulty then such a mini pci-e will not have the capacity to connect its associated laptop to a Wi-Fi.

A huge variety of networking hardware and software appeared. One challenge was to enable these different networks to communicate with each other. ARPA accomplished this by developing the ________, which created a true "network of networks," the current architecture of the Internet.

Answers

Answer:

Internet Protocol (IP) is the correct answer of this question.

Explanation:

This was done by ARPA creating the internet protocol that created a true "network of networks," the current Internet architecture.A huge array of hardware and software networking has emerged. One challenge was to connect with each other through these different networks.

The Internet Protocol (IP) is an interface or set of rules to route and manipulate packets of data so that they can navigate through cables and reach the right goal.

For Example:- tcp, udp, http ,https ,ftp, dns, telnet, bgp etc.

The code snippet below checks whether a given number is a prime number. What will be the result of executing it? public static void main(String[] args) { int j = 2; int result = 0; int number = 0; Scanner reader = new Scanner(System.in); System.out.println("Please enter a number: "); number = reader.nextInt(); while (j <= number / 2) { if (number % j == 0) { result = 1; } j++; } if (result == 1) { System.out.println("Number: " + number + " is Not Prime."); } else { System.out.println("Number: " + number + " is Prime. "); }.A) The code snippet will not compile.
B) The code snippet will display the desired result.
C) The code snippet will display an incorrect result.
D) The code snippet will loop forever.

Answers

Answer:

B)

Explanation:

The Code Snippet is correct and gives the expected result.

Prime numbers are numbers with only two divisors (1 and themselves)

Below are the list of prime numbers from 1-100

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Testing each of the following numbers in the compiled code snippet gives the expected output.

Types or classes of larger servers include ______________________, which are generally optimized for data storage and I/O capability, and ______________________, which are generally optimized for computational capacity and speed.

Answers

Answer:

The answer is "Mainframe, Supercomputer"

Explanation:

Mainframe:

These computers are mainly used in large companies for vital purposes like bulk processing of records, for instance, censuses, business stats, and customer statistical analysis, company management preparation and transaction handling.

Supercomputer:

These types of computer used in scientific researches, oil and gas development, translating satellite information into maps showing where and how to drill oil or gas wells. These are used in applications for mechanics, for example, fluid dynamic equations of drag and hydrodynamic performance vehicles.

Melinda completed the Computer Programming Aptitude Test when she applied for a position with Beta Electronics. Six months later, she took the same test when she applied for a position with another company. The fact that her scores were almost identical on the two occasions suggests that the test has a high degree of Group of answer choices stability. content validity. reliability. standardization. predictive validity.

Answers

Answer:

reliability

Explanation:

The fact that her scores were almost identical on the two occasions suggests that the test has a high degree of reliability. Meaning that the test is trustworthy and performs consistently. That is because the main factor that determines whether or not a test is reliable is if a certain input, outputs the same results every single time regardless of the amount of times that it is tried. Which seems to be the case in this scenario with this test.

You are purchasing several PC systems that will be used as thin clients in a large organization. Which hardware selection criteria would be most important for this system?

Answers

Answer:

Gigabit Ethernet adapter

Explanation:

A thin client is a type of computer without a localized hard drive that is used to run resources stored on a central server. It accesses resources such as applications and data deemed secure on remote servers and secure data centers. It requires Gigabit Ethernet adapter due to its heavy dependence on network resources and computational role to the server.

the program is running, it can use the class to create as manyobjects of a specific type as needed. Each object that is created from aclass is called a(n) __ of the class

Answers

Answer: "An instance of a class"

Explanation:

When you create an object, you are creating an instance of a class, therefore "instantiating" a class.

You create an object from a class, thus you can say that a class provides the blueprint for objects.

When used in object-oriented programming, a class is a factory for creating objects and Such objects are called "instances" of the class.

You are a help desk support technician at a retail department store and you receive a call from a manager in the administrative offices. He complains that the performance of his 802.11g notebook computer decreases several times throughout the day. Upon visiting the customer, you realize several people are performing inventory using 802.11b barcode scanners in the adjacent room. What is most likely the cause of the poor performance for the manager's notebook computer?

Answers

Answer:

ERP protection

Explanation:

Ethernet Ring Protection, or ERP, is an attempt at ITU-T under the G. 8032 Recommendation to offer sub-50ms recovery and protection switching for Ethernet traffic in a ring like topology and at the same time making sure that there loops are not formed at the Ethernet layer. G.

In recent times Ethernet Ring Protection (ERP) has emerged to offer protection switching for Ethernet ring topologies with sub-50 ms failover facilities.

3.A customer has a system with a Gigabyte B450 Aorus Pro motherboard. He wants to upgrade the processor from the AMD Athlon X4 950 to the AMD Ryzen 7 2700X. Which of the following accurately describes this upgrade

Answers

Answer:

The upgrade is possible and it will yield a remarkable  increase in performance

Explanation:

It is a newer product, there is tendency of having a better application compatibility/performance

It has much higher multi threaded performance which is around 522% higher. This allows for higher performance in professional applications like encoding and heavy multitasking compared to the previous.

When considering gaming, it has higher performance compared to the previous.

ou discover an unattended email address or fax machine in your office that receives beneficiary appeals requests. You suspect that no one is processing the appeals. What should you do

Answers

Answer:

C. Contact your compliance department.

Explanation: You can Contact your compliance department to look into the beneficiary appeal requests that your company receives, screen then and decide on which ones to work with or which ones your company should discard and delete.

ACME Corp. is developing a software program that can run on mobile devices so that customers can interact with the firm, view product information, and order status. This is best described as a(n) ___________.

Answers

Answer:

App is the correct answer of this question.

Explanation:

ACME Corp. is creating a computer program that can run on mobile devices to allow clients to communicate with the business, display product information and order status.This is best represented as app.

For Example:- Music,Playing games,text,video chatting,Shopping Online and Planning vacations etc.  

An app is a software category that allows you manage complex tasks.Tablet or smartphone apps are sometimes pointed to as web browsers, while those for mobile devices are pointed to as apps and websites.

Which option correctly completes this statement? Programs can repeat simple instructions very quickly to I. help human users to perceive images and sound II. remove the drudgery of repeating instructions by hand III. overcome the need for connectivity to the computer network

Answers

Answer:

I, II only

Explanation:

A computer program is a compilation of instructions and commands that can be executed by a computer to carry out a specific task. Most computer devices can only function optimally with the help of a program.

Programs can repeat simple instructions very quickly in order to assist individual users to recognize images and sound effortlessly and to get rid of the drudgery of repeating instructions and commands by hand

A user calls to report that she is experiencing intermittent problems while accessing the wireless network form her laptop computer. While talking to her, you discover that she is trying to work form the break room two floors above the floor where she normally works.

Which of the following is the MOST likely cause of her connectivity problem?

• The user has not yet rebooted her laptop computer while at her new location.
• The user needs a new IP address because she is working on a different floor.
• The wireless network access point on the user's normal floor has failed.
• The user is out of the effective range of the wireless access point on her floor.
• The user has not yet logged off and back on to the network while at her new location.

Answers

Answer:

The user is out of the effective range of the wireless access point on her floor.

Explanation:

This user is obviously not close to the access point. As help desk, if a user ever calls to complain about slow speeds or intermittent connectivity while trying to access the network, the first question that you should ask them is how far out are they from the modem or the Access Point. The location between her and the access point might affect the performance of the wireless network. Since she is working from the break room that is two floors above the floor where she normally works, then this means that the walls and ceilings will act as an obstruction to the Wi-Fi signal. The number of Walls and other obstacles will obviously affect the range of the Wi-Fi and will limit the signal’s effectiveness. I will advise the user to go back to her initial working area or be within range to the access point.

______________________________ is an attack in which the perpetrator uses social skills to trick or manipulate legitimate employees into providing confidential company information, such as passwords.

Answers

Answer:

Social Engineering is the answer

Explanation:

Social Engineering is known as the attack in which the perpetrator tends to use social skills for manipulating and tricking the legal employees to provide privileged information of the company such as passwords,

In simple words, it is an attack that completely relies on the interaction of human beings.  

It manipulates the people to break the top-most practices along with security methods to attain access to physical location and network, systems and financial gain.

Give a recursive implementation for the function: def is_sorted(lst, low, high) This function is given a list of numbers, lst, as well as two indices: low and high (low ≤ high), which indicate the range of the indices for the elements that should to be considered. When called, the function should determine if the elements that are placed at the low, low+1, …, high positions, are in an (ascending) sorted order. That is, it should return True if-and-only-if lst[low] ≤ lst[low+1] ≤ … ≤ lst[high] For example, if lst = [1, 3, 6, 8, 12, 15, 31], the call is_sorted(lst, 0, 6), will return True. Implementation requirements: Your function should run in worst case linear time. That is, if n is the size of the range low, low+1, …, high, calling is_sorted(lst, low, high) will run in �(�). Note: Write your implementation.

Answers

Answer:

# recursive method to find if list is in ascending order

def is_sorted(list, low, high):

   if low >= high:     # if reached end of list

       return True

   if list[low] > list[low+1]:     # if item at low is greater than low+1

       return False                # return false

   return True and is_sorted(list, low+1, high)    # or return True and recursion call to low+1

Explanation:

Omega Software Inc. is currently running a training program for employees to upgrade their software skills so that they are able to design more efficient software programs. Omega Software is attempting to make a change in the area of:_______.

Answers

Answer:

Omega Software is attempting to make a change in the area of people.

Explanation:

Types of Organizational Change:

Most organizations have to go through a change to keep up with the changing market dynamics, trends and technologies. There are four major types of organizational change:

StructuralStrategicPeopleProcess

People change:

One of the organizational change is people change where organizations strive towards the improvement of their employee's skills set and productivity. This is usually achieved by launching various specialized and general training programs for employees to enhance their knowledge and widen their skills set so that they can work more efficiently for the organization.

Therefore, it can be concluded that Omega Software is attempting to make a change in the area of People.

In order to get a comprehensive evaluation of the computer programmers he managed, Justin organized a(n) __________, where he asked immediate coworkers and others who worked closely with the programmers to participate in the evaluation process.

Answers

Answer:

c. 360-degree review

Explanation:

360-degree feedback mostly serve as a process of communicating strengths and weaknesses to a targeted manager or the one doing the review.

A managers can decide to get better or improve their performance through a 360-degree review feedback.

The review and the feedback gottrn often provides an external source by making available information that increases managerial self-awareness.

The combination of systematic coaching and the feedback gotten can be used to improve self awareness.

When the feedback gotten is combined with systematic coaching, it has a positive effect on work attitudes and intentions to quit. This in turn reduces the costs through decreased turnover, improved job satisfaction, and performance related commitment

The main aim of feedback is often to achieve change.

A manager that wants to carry out a comprehensive assessment will have to do 360-degree review.

Care should be taken whenever you post comments or photos to any social media or other websites, because each of these online activities either add to or detract from your personal brand.1. True2. False

Answers

Answer:

True is the correct answer for the above question.

Explanation:

The social website is used to connect the people using the internet to communicate. With the help of this, any people can communicate within the world's people. If anyone posts their pictures or comment on this type of website, then they need to care for that post or pictures. it means he needs to make decisions to choose the pictures or comments while posting.It is because when the user posts the wrong comments or pictures, then their popularity is less in front of the other people called society.This concept is also said by the question, hence it is a true statement.

Which of the following statements about Java Class Libraries is false? Question 18 options: A) An advantage of using Java class libraries is saving the effort of designing, developing and testing new classes. B) Java class libraries are also known as Java APIs (Application Programming Interfaces). C) Java class libraries consist of classes that consist of methods that perform tasks. D) Java class libraries are not portable

Answers

Answer:

D) Java class libraries are not portable

Explanation:

The Java Class Library (JCL) is an array of enthusiastically loadable libraries that Java applications can identify and refer to at run time. Since the Java Platform is independent of any particular operating system, applications can’t depend on any of the platform-native libraries.

The library is a massive collection and works of prebuilt classes that is distributed through the Java SE platform.

Answer:

D) Java class libraries are not portable

Explanation:

The Java Class Library (JCL) is an array of enthusiastically loadable libraries that Java applications can identify and refer to at run time. Since the Java Platform is independent of any particular operating system, applications can’t depend on any of the platform-native libraries.

The library is a massive collection and works of prebuilt classes that is distributed through the Java SE platform.

The negotiation by the transport layer at the sender with the transport layer at the receiver to determine what size packets should be set up is done via establishing a(n) ___________ between the sender and receiver.

Answers

Answer:

TCP connection(Transmission Control Protocol) is the correct answer of this question.

Explanation:

TCP guarantees data delivery and also means packets will be provided in the same order in which they were sent.Negotiation by the sender's transport layer with the receiver's transport layer to establish what size containers should be set up by maintaining a(n) TCP connection between the sender and the receiver.

Once diluted, it could also be used as a mouthwash, and may also double as a specific disinfectant.TCP / IP is essential because it runs over the whole Internet.

What two units are used to measure the frequency and amplitude of a sound wave?

A. Hertz is a measure of frequency, and a decibel is a measure of amplitude.

B. A decibel is a measure of frequency, and hertz is a measure of amplitude.

C. The quantization is a measure of frequency, and sampling is a measure of amplitude.

D. Sampling is a measure of frequency, and the quantization is a measure of amplitude.

Answers

Answer:

A. Hertz ----f amplitude.

Explanation:

The rules of physics confirm that frequency is measured in HERTZ and the amplitude is measured in Decibel. And hence, the correct option here is certainly the first option as it states that the frequency is measured in HERTZ and the amplitude is measured in Decibel. Hence, the first one is the correct choice for this question.

Other Questions
Find the values of x and y A building is being knocked down with a wrecking ball, which is a big metal sphere that swings on a 15-m-long cable. You are (unwisely!) standing directly beneath the point from which the wrecking ball is hung when you notice that the ball has just been released and is swinging directly toward you. You are sleeping at the station while on shift. The tones go off loudly and lights instantly come on. You jump out of bed and quickly put on your clothes and run out to the apparatus bay. Your heart rate is elevated, you are breathing faster, and wide awake. What stage of the stress response are you experiencing Which scientist most inspired Darwin to pursue his studies of evolution? Describe a situation in which there could be a conflict of interest between an IT consultants self-interest and the interests of a client. How might this potential conflict be addressed? TUMI brand briefcases are very expensive, high-end briefcases that are generally sold in specialty luggage shops. Which of the following is the most promising target market for TUMI briefcases?a. police officers.b. executives.c. construction workers.d. postal workers.e. students. What hypothesis were the researchers testing in this study? Sugar beet seedlings have a lower rate of fungal infection in disease-suppressive soils. Item 3What is a mosaic?a method of painting religious figures on woodan elaborate piece of art in which small pieces of glass or stone form intricate picturesa technique in which colored glass is used to create a picture in a windowan extremely large piece of art that was constructed within the dome of a church in Constantinople Write the quadratic equation in standard form that represents the table below:20 POINTS IF YOU HELP! The best way to look at travel destinations is to look at a map.TrueFalse Which of the following cause particles to move back and forth in the direction the waves are moving? a. P waves b. L waves c. S waves d. tsunamis Daves boss told him that he doesnt have to attend the company picnic (which everybody dislikes) if Dave meets his sales quota this month. Daves boss is using ________. Simplify 4-6+2x-9x-8 what is caliper used for What is the simplified expression for Negative 2 a squared b + a squared minus 5 a b + 3 a b squared minus b squared + 2 (a squared b + 2 a b)? a squared minus 9 a b + 3 a b squared a squared + 9 a b minus b squared + 3 a b squared 10 a b + a squared minus b squared 3 a b squared + a squared minus b squared minus a b A proton moves 10.0 cm on a path parallel to the direction of a uniform electric field of strength 3.0 N/C. What is the change in electrical potential energy? The solution set for -18 < 5x - 3 is _____.-3 < x3 < x-3 > x3 > x Anterograde movement of transition vesicles is from __________. Anterograde movement of transition vesicles is from __________. the rough ER to the trans Golgi the trans Golgi to secrete at the plasma membrane the rough ER to the cis Golgi the cis Golgi to the trans Golgi When developing your complete-sentence outline, each main point or subpoint should express a. your views about your topic. b. only one idea. c. None of these answers are correct. d. several ideas so you have options during your speech. What effect did World War I have on German Americans?1) German Americans were removed to internment camps to address fears of spying and sabotage.2) Businesses owned by German Americans suffered from widespread boycotts organized and promoted by nativist groups.3) German-American communities were reduced in size as many German Americans moved back to Germany.4) German-American schools, churches, and magazines largely abandoned the use of the German language.