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Internet technology > mid q&a > Flashcards

mid q&a Flashcards

1
Q

what is the difference between Web and internet

A

web is Information shared over the internet using the Hypertext Transfer Protocol (HTTP),

internet:International network of connected computers

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2
Q

To reach 50 million people:
Radio took … years
TV took … years
Internet took just … years

A

Radio took 38 years
TV took 13 years
Internet took just 4 years

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3
Q

Problems created by internet own success

A

More computers are linked (1984 – 1000 hosts)

Large volume of traffic (success of e-mail)

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4
Q

DNS (Domain Name System)

A

Distributed and scalable mechanism for resolving host names into IP addresses

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5
Q

what is networking

A

When two or more devices are connected for data sharing or resources, we call it networking

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6
Q

difference between networking and internetworking

A
  • In networking (LAN) all devices are compatible with each other
  • It may or may not be the case in internetworkingo- Differences in hardware and software make
    systems incompatible
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7
Q

The internet exists today because of a suite of interrelated communications protocols

true of false

A

true

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8
Q

……. and …… use TCP/IP protocols to connect to the internet

A

Web browsers and servers

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9
Q

TCP/IP stand for

A

Stands for Transmission Control Protocol/Internet Protocol

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10
Q

IP takes care of the communication with ….

TCP takes care of the communication between ….

A

other computers

between your application software (i.e. your browser) and your network software

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11
Q

Domain names and IP addresses are not permanently attached

True or false

A

true

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12
Q

You can’t own a domain name and move it from one host to another
True or false

A

false

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13
Q

Two computers in a network or internetwork can have identical names
True or false

A

false

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14
Q

Browser

A

The software that requests resources (data or documents) from the web server.

The resource format is usually HTML (Hyper Text Markup Language) but can also be PDF, image, etc.

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15
Q

The program in the browser that interprets HTML/CSS/JavaScript is called ……

A

the rendering engine

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16
Q

URL stands for

A

Uniform Resource Locator

17
Q

How do web pages work?

A
  1. You type in a URL, which is the address of the HTML file on the internet.
  2. The browser asks the web server that hosts the document to send that document.
  3. The web server responds to the browser with HTML file that was requested.
  4. The browser reads the HTML, sees the embedded resources and asks the server for those as well.
  5. The web page is loaded when all the resources are fetched and displayed.
18
Q

….. is a program running on a computer that delivers web pages in response to requests.

A

web server

19
Q

html Describes the ……. and ……. of a web page

A

content and structure

20
Q

error 503

A

Service Unavailable: This is a catch-all error message for a variety of problems, but all of them mean that the website is incapable of contact by your browser

21
Q

How Cookies Work

A
  • The first time a Web page is requested, no cookie is included, so the server creates a cookie and returns it
  • For later visits to the same website, the request will contain the cookie generated at the previous visit
  • The server updates the cookie (if needed) and returns it with the page
  • This way the server ”remembers” the client from one visit to the next
22
Q

Cookie Format

A

Name: name of cookie
Value: contents of cookie – can be an array of values
Domain: domain of the server that is to receive the cookie
Expires: When cookie will expire
Path: Path in server from which cookie can be sent
Secure: Does cookie require secure server using https
Default is no

23
Q

Cookie Storage

A

-Temporary cookies (session cookies)
o-stored only for your current browsing session and is deleted from your computer when you close the browser
-Persistent cookies
o-stored as a file on your computer, and it remains even when you close the browser
o-can be read by the Web site that created it when you visit that site again

24
Q

Cookie Originator

A

-First-party cookie
o-originates on or is sent to the Web site you are currently viewing
o-these cookies are commonly used to store information, such as your preferences when visiting that site
-Third-party cookie
o-originates on or is sent to a Web site different from the one you are currently viewing
o-common use for this type of cookie is to track your Web page use for advertising or other marketing purposes

25
Q

HTML supports two kinds of paths:

A

Absolute paths

Relative paths

Internet technology (3 decks)

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