Client and server
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Which device usually acts as the client when you visit a website?
2. What does a web server do?
3. Which comes first in the client-server process?
4. Which one is a response?
5. Which sentence is correct?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1client-server | AThe browser (client) asks a web server for a web page | |
| 2request -> server | BA client asks for data and a server stores it and sends it back | |
| 3A browser is the client because it asks for a web page | CThe roles are mixed up. The client (browser) sends the request and the web server only sends a response. | |
| 4A web server stores the page and sends back a response | DThe roles are swapped. The server stores the website data and the browser (client) is the one that asks for it. | |
| 5web server sends a request to the browser first | Eresponse <- web server | |
| 6browser stores the website and the server asks for it | Fclient = browser |
C
Definitions
client-server
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
______ -> request -> server
2.
client -> request -> ______
3.
client <- ________ <- server
4.
browser sends a _______ to a web server
5.
client = _______
server = web server
browser -> request -> server
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
client = browser
B
server = web server
C
server sends request to client
D
server sends back response
Question 2
A
request = 'GET /index.html'
B
send(request, web_server)
C
page = find(request)
D
send(request, browser)
Question 3
A
1. Type a web address
B
2. Browser sends a request
C
3. Web server finds the page
D
4. Browser sends the response
Question 4
A
client = 'browser'
B
server = 'asks for web pages'
C
client.request('home page')
Question 5
A
client = web server
B
request = 'give me the page'
C
response = server(request)
Answer Key
Client and server
Section A: Quick Questions
Q1
A — Your browser on your tablet
Q2
A — Stores web pages and sends them back when asked
Q3
B — The client sends a request
Q4
A — The web page data sent back to your browser
Q5
B — A client requests data and a server sends it back
Section B: Match the Pairs
Q1
client-server → A client asks for data and a server stores it and sends it back
Q2
request -> server → The browser (client) asks a web server for a web page
Q3
A browser is the client because it asks for a web page → client = browser
Q4
A web server stores the page and sends back a response → response <- web server
Q5
web server sends a request to the browser first → The roles are mixed up. The client (browser) sends the request and the web server only sends a response.
Q6
browser stores the website and the server asks for it → The roles are swapped. The server stores the website data and the browser (client) is the one that asks for it.
Section C: Definitions
Q1
client-server — A client, like your browser, sends a request for data and a server stores that data and sends a response back.Section D: Fill in the Blanks
Q1
client -> request -> serverQ2
client -> request -> serverQ3
client <- response <- serverQ4
browser sends a request to a web serverQ5
client = browser
server = web server
browser -> request -> serverSection E: Spot the Error
Q1
C — The client (the browser) sends the request to the server, not the other way round. It should be: client sends request to server.
Q2
D — The server sends the page (the response) back to the browser. It should be: send(page, browser).
Q3
D — The server sends the response. The browser is the client and sends the request. It should be: 4. Server sends a response.
Q4
B — A server stores data and sends it back. It does not ask for pages. It should be: server = 'stores web pages'.
Q5
A — The browser is the client. The web server is the server. It should be: client = browser.