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Question 24

True or False?

Although the distinction between client and server is becoming less clear each day, there is one fundamental distinction that is inherent in the Javaprogramming language.

The server initiates conversations with clients, while clients block and wait for a server to initiate a conversation.

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Answers

Answer 24

False.

Although the distinction between client and server is becoming less clear each day, there is one fundamental distinction that is inherent in the Javaprogramming language.

The client initiates conversations with servers, while servers block and wait for a client to initiate a conversation.

Go back to Question 24

Answer 23

True.

Go back to Question 23

Answer 22

True.

Go back to Question 22

Answer 21

False.

Java provides at least two different approaches for doing network programming (and possibly more) , insofar as the web is concerned. The two approaches are associated with

  • The Socket , DatagramSocket , and ServerSocket classes
  • The URL, URLEncoder, and URLConnection classes.

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Answer 20

True.

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Answer 19

True.

Go back to Question 19

Answer 18

False. A proxy server is often used to improve the communication speed of computers inside of a company with the Internet at largeoutside the company. For example, if ten people inside the company attempt to connect to the same Internet server and download the same web page within a (hopefully) short period of time, that page may be saved on the proxy server on the first attempt and then delivered to the next nine people withoutre-acquiring it from the outside web server. This can significantly improve delivery time and reduce network traffic into and out of the company.

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Answer 17

False. A firewall is the common name given to the equipment and associated software that is used to insulate the network inside of a company from theInternet at large outside the company. Typically, the firewall will restrict the degree to which computers inside the company can communicate with the Internetfor security and other reasons.

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Answer 16

True.

Go back to Question 16

Answer 15

True.

Go back to Question 15

Answer 14

False. The Domain Name System (DNS) was developed to translate between IP addresses and domain names. Whenever you log your browser onto the internet and attempt to connect to a server using its domainname, the browser first communicates with a DNS server to learn the corresponding numeric IP address. The numeric IP address (and not the domain name) is encapsulated into the data packets and used by the internet protocol to route those packets from thesource to the destination.

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Answer 13

True.

Go back to Question 13

Answer 12

True.

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Answer 11

True.

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Answer 10

False. The User Datagram Protocol ( UDP) is often referred to as an unreliable protocol because there is no guarantee that a series of packets will arrive in the right order, or that they willarrive at all.

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Answer 9

True.

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Answer 8

True.

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Answer 7

True.

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Answer 6

False. IP is an acronym that stands for Internet Protocol.

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Answer 5

True.

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Answer 4

False. In order for two or more computers connected to a network to be able to exchange data in an orderly manner, they must adhere to a mutually acceptablecommunication protocol. The protocol defines the rules by which they communicate.

Go back to Question 4

Answer 3

True.

Go back to Question 3

Answer 2

False. Each of the devices on the network can be thought of as a node , and each node has a unique address.

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Answer 1

True.

Go back to Question 1

Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Java4620r-Review
  • File: Java4620r.htm
  • Published: 03/08/14
  • Revised 12/26/14
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

-end-

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir Reply
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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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