IG1 U5T4 Web technologies and cookies

The term 'internet' refers to the ​ (a)   such as cables and routers. 'world wide web' refers to a collection of ​ (b)  

• infrastructure
• web pages
• infrared
• applications
• materials
• servers

Match the term with the definition

• An address used by routers to forward data packets to the correct destination

• IP Address

• A protocol that allows web pages to be transferred

• MAC Address

• A human-readable address for a web page

• HTTP

• A permanent 48-bit code that a computer gets when it is first built

• URL

Cookies can be used for...

• Storing usernames and passwords

• Remembering customisation preferences

• Storing items in a shopping basket

• Remembering the IP addresses of popular websites

​ (a)   are deleted after ​ (b)   , whilst ​ (c)   remain on the computer until their ​ (d)   .

• Session cookies
• the browser window closes
• persistent cookies
• expiry date

What does HTML look like?

• x = 2

  y = 3

  z = x + y

• int myVar;

  myVar = 7;

• LDD 45

  INC ACC

  STO 153

• <p>Hello World</p>

Web pages are stored on ​ (a)   . To access a web server, the web browser must know the ​ (b)   of the server. These are hard to remember. Instead, the user types a ​ (c)   into the address bar of their browser. This is then sent to a ​ (d)   which responds with the IP address of the web server. The web browser and web server then use ​ (e)   to communicate. The web server sends the page, written in HTML to the browser to display.

• web servers
• IP address
• URL
• DNS server
• HTTP
• MAC address
• File Server
• HTML
• TCP
• the internet

Your computer uses the ________ to look up Domain names.

• Internet Service Provider

• Phone book

• IP locator

• DNS

Which best explains what happens when a new device is connected to the Internet?

• A device driver is assigned to the device.

• An Internet Protocol (IP) address is assigned to the device.

• A packet number is assigned to the device.

• A Web site is assigned to the device.

Which of these best describes fault-tolerance on the Internet?

• The ability to stop cyberattacks

• The ability to transmit data even when some connections have failed

• The ability for DNS servers to retrieve the correct IP addresses of websites

• The ability for the Internet to handle billions of unique users

When I type "www.google.com" into my web browser and hit enter, which of the following best describes what happens?

• My computer sends a request to a TCP server, which returns the IP address for Google.

• My computer sends a request to a DNS server, which returns the IP address for Google.

• My computer makes a direct connection to google.com and starts receiving packets.

• My computer sends a request to a google.com server, which returns the IP address for a DNS server.