# DNS, TCP/IP, HTTP, HTML

### IP Addresses & DNS

{% embed url="<https://href.li/?https://youtu.be/5o8CwafCxnU?list=PLzdnOPI1iJNfMRZm5DDxco3UdsFegvuB7>" %}

| Questions                                                                                                                                                                                                             |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| The world is currently in a transition to using IPv6, a new version of the IP protocol that uses 128 bit addresses instead of 32 bit addresses used by IPv4. What is the main problem that IPv6 was created to solve? |
| What is the function of DNS?                                                                                                                                                                                          |
| What is a spoofing attack?                                                                                                                                                                                            |
| IP Addresses are unique to each computer. (True or False?)                                                                                                                                                            |

### Packets, Routing & Reliability

{% embed url="<https://href.li/?https://youtu.be/AYdF7b3nMto?list=PLzdnOPI1iJNfMRZm5DDxco3UdsFegvuB7>" %}

| Questions                                                                                       |
| ----------------------------------------------------------------------------------------------- |
| What is the difference between Transmission Control Protocol (TCP) and Internet Protocol (IP)?  |
| Packets must be sent in order so the can be reassembled at the end host. (T/F)                  |
| All packets must pass through a centralized router to be verified. (T/F)                        |
| When your computer requests information from a server, it takes the same path every time. (T/F) |

### HTTP & HTML

{% embed url="<https://href.li/?https://youtu.be/kBXQZMmiA4s?list=PLzdnOPI1iJNfMRZm5DDxco3UdsFegvuB7>" %}

| Questions                                                                                                                  |
| -------------------------------------------------------------------------------------------------------------------------- |
| What does HTTP stand for and what is its purpose?                                                                          |
| What is the difference between HTTP and HTTPS?                                                                             |
| What does HTML stand for and what is its purpose?                                                                          |
| The browser reads through the entire HTML document before sending requests for the images files needed for the page. (T/F) |
| What is the difference between a GET request and a POST request?                                                           |
| What purpose does a cookie serve in an HTTP request?                                                                       |
| The http protocol protects private data from potential hackers by encrypting it before it is sent. (T/F)                   |