Wi-Fi standards and security in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the Wi-Fi standard that operates at 5 GHz frequency.

Intro to Computing

standard = "802.11[1]"  # 5 GHz Wi-Fi standard

Drag options to blanks, or click blank then click option'

Aa

Bb

Cg

Dn

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 802.11b or g which operate at 2.4 GHz.

The 802.11a standard operates at 5 GHz frequency, providing faster speeds but shorter range compared to 2.4 GHz standards.

2fill in blank

medium

Complete the code to select the Wi-Fi security protocol that uses AES encryption.

Intro to Computing

security_protocol = "WPA[1]"  # Uses AES encryption

Drag options to blanks, or click blank then click option'

A3

B1

C2

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing WPA1 which uses weaker encryption.

WPA2 uses AES encryption, which is stronger and more secure than the older TKIP used in WPA1.

3fill in blank

hard

Fix the error in the code to correctly check if a Wi-Fi network uses WPA3 security.

Intro to Computing

if network_security == "WPA[1]":
    print("Network uses the latest security standard.")

Drag options to blanks, or click blank then click option'

A4

B1

C2

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using WPA2 or WPA1 instead of WPA3.

WPA3 is the latest Wi-Fi security standard offering improved protection over WPA2.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps Wi-Fi standards to their maximum speeds (in Mbps) for standards operating at 2.4 GHz.

Intro to Computing

max_speeds = {"802.11" + [1]: [2] for [3] in ["b", "g", "n"]}

Drag options to blanks, or click blank then click option'

A"b"

B54

Cspeed

D600

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect loop variable names or speed values.

This comprehension creates a dictionary with keys like '802.11b' and values as their max speeds. 'b' is concatenated to '802.11', and speeds like 54 Mbps correspond to 802.11g. The variable 'speed' is used as the loop variable.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps Wi-Fi security protocols to their encryption types, filtering only protocols that use AES encryption.

Intro to Computing

aes_protocols = [1]: [2] for [3] in protocols if protocols[[3]] == "AES"}

Drag options to blanks, or click blank then click option'

Aprotocol

Bencryption

Ckey

Dprotocols

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable names or mapping keys incorrectly.

The comprehension iterates over keys in 'protocols' dictionary using 'protocol' as loop variable. It maps each 'key' to its 'encryption' value only if the encryption is 'AES'.