URLs
- Name all of the parts of the url that you can remember. In your own words describe what they do.
- Name the pieces of the following urls:
https://www.google.com/https://workbook.galvanize.com/cohorts/41/learning_experiences/367http:https://locahost:5000/animals/puppies?onlycute=1&size=medium#firstpuppyhttps://en.wikipedia.org/wiki/List_of_HTTP_status_codes#4xx_Client_Error
- Can a server use more than 1 port?
- Why is https different than http?
- How does a server interpret the following url's query paramter. What data structure does it create on the server?
http:https://locahost:5000/animals?puppies=fido&puppies=max&puppies=moxie
HTTP Request/Response
- Name at least 4 http verbs
- What is each verb useful for in your own words
- What does idempotent mean?
- Name the 5 http status code ranges. What are they used for in general?
- If a server returns a http status code of 301 and a location of
https://www.google.com/, what does the browser do? - For the following HTTP headers, decide if the following header is used for requests, responses or both:
- Accept
- Content-type
- User-agent
- Set-cookies
- Cache-control
- Cookie
- Is the following a http request or response? How do you know for each?
HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Vary: Accept
Content-Type: text/html; charset=utf-8
Content-Length: 722
ETag: W/"2d2-Wu0We9N5g35FXWY+gOATLA"
Date: Tue, 08 Mar 2016 20:37:11 GMT
Connection: keep-alive
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="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/style.css">
<title>Student Roster</title>
</head>
<body>
<main>
<h1>Student Roster</h1>
<section>
<h3>Daenerys Targaryen</h3>
<span>Student Id: nys8fbohl</span>
<h4>Hobby: Motherhood</h4>
<img src="https://i.imgur.com/KlycRG5.jpg" alt="Daenerys Targaryen" />
</section>
<section>
<h3>Tyrion Lannister</h3>
<span>Student Id: njehukbohe</span>
<h4>Hobby: Traveling</h4>
<img src="https://i.imgur.com/fFMusdC.png" alt="Tyrion Lannister" />
</section>
</main>
</body>
</html>
DELETE /students/n1vmyrw3x HTTP/1.1
Host: g22-students.herokuapp.com
Accept: application/json
Cache-Control: no-cache
Postman-Token: 0041e3c3-efdb-f0c3-b2f4-2d79f6d0f44b
JSON
- Describe what JSON is. What is it used for.
- Convert the following map into a javascript object then console log the age.
{ "company" : "Github", "age": 7, "categories" : "Services,Internet,Software"}
- Convert the following to a javascript object. Console log each company name.
{ "Companies":[ { "company": "Github", "age": 7, "categories": "Services,Internet,Software"},
{ "company": "Airbnb", "age": 6, "categories": "Hotels,Travel"},
{ "company": "Square", "age": 7, "categories": "FinTech,Hardware + Software,Finance"},
{ "company": "Dropbox", "age": 11, "categories": "Cloud Data Services,Storage,Web Hosting"}
]
}
- The following is javascript. Convert the object to a string and console log it.
var myObj = {
company: "Galvanize",
age: 3,
categories: "Education"
};
MISC
- Describe what DNS is.
- In the terminal, type
man curl. Look at the man page for curl. What do the following flags do?-v,-X. (Hint: to search for a string, type/then the text you want, then enter. To quit the man page, typeq). - What is TCP/IP? How does it interact with HTTP?
- Does HTTP break the data that is being sent into small packets? If not, what protocol is responsible for it?