URL part: the protocol
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. What does the protocol at the start of a URL tell the browser?
2. In https://www.example.com/index.html, which part is the protocol?
3. Which characters separate the protocol from the rest of the URL?
4. Which protocol in a URL means the page is sent without encryption?
5. Which URL starts with the secure protocol?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1http:// | Ahttp:// | |
| 2https:// | BThe protocol is missing from the start of the URL, so the browser is not told which set of rules to use. It needs http:// or https:// at the start. | |
| 3The protocol at the start of a URL tells the browser which set of rules to use to fetch the page | CProtocol that tells the browser to fetch the page using the secure, encrypted version of HTTP | |
| 4The :// characters separate the protocol from the rest of the URL | DProtocol that tells the browser to fetch the page using HyperText Transfer Protocol, with no encryption | |
| 5https:/www.example.com | Ehttps://www.example.com/index.html | |
| 6www.example.com/home.html | FThe separator is incomplete: it has only one forward slash. It should be :// so the protocol is clearly separated from the domain name. |
C
Definitions
https://
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
_____://bank.example.com/login
2.
http___www.example.com
3.
____://www.example.com/index.html
4.
http_://shop.example.com/cart
5.
<a href="____://www.example.com">Visit</a>
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
url = "https://bank.com/pay"
B
protocol = "http"
C
secure = true
Question 2
A
url = "http://school.com"
B
protocol = "http"
C
secure = true
Question 3
A
url = "https//shop.com/cart"
B
protocol = "https"
C
separator = "://"
Question 4
A
IF protocol = "https" THEN
B
OUTPUT "Encrypted"
C
ELSE OUTPUT "Encrypted"
D
ENDIF
Question 5
A
url = "http://news.com"
B
parts = url.split("//:")
C
print(parts[0])
Answer Key
URL part: the protocol
Section A: Quick Questions
Q1
B — Which set of rules to use to fetch the page
Q2
A — https
Q3
A — ://
Q4
B — http://
Q5
A — https://www.bank.com
Section B: Match the Pairs
Q1
http:// → Protocol that tells the browser to fetch the page using HyperText Transfer Protocol, with no encryption
Q2
https:// → Protocol that tells the browser to fetch the page using the secure, encrypted version of HTTP
Q3
The protocol at the start of a URL tells the browser which set of rules to use to fetch the page → https://www.example.com/index.html
Q4
The :// characters separate the protocol from the rest of the URL → http://
Q5
https:/www.example.com → The separator is incomplete: it has only one forward slash. It should be :// so the protocol is clearly separated from the domain name.
Q6
www.example.com/home.html → The protocol is missing from the start of the URL, so the browser is not told which set of rules to use. It needs http:// or https:// at the start.
Section C: Definitions
Q1
https:// — The protocol at the start of a URL. It tells the browser which set of rules to use to fetch the page: http:// is unencrypted, https:// is secure. The :// separates it from the rest.Section D: Fill in the Blanks
Q1
https://bank.example.com/loginQ2
http://www.example.comQ3
http://www.example.com/index.htmlQ4
https://shop.example.com/cartQ5
<a href="http://www.example.com">Visit</a>Section E: Spot the Error
Q1
B — The URL starts with https://, so the protocol is "https", not "http". The protocol is the part before ://.
Q2
C — http:// is the unencrypted protocol, so the page is not secure. Only https:// is secure, so this should be secure = false.
Q3
A — The colon is missing. The protocol must be followed by the :// separator, so it should be https://shop.com/cart.
Q4
C — If the protocol is not https, the data is not encrypted. The ELSE branch should output "Not encrypted".
Q5
B — The separator is :// not //:. Splitting on "//:" will not find it, so it should be url.split("://").