You want to block access to a website by modifying the local hosts file. Which entry correctly blocks badwebsite.com by redirecting it to the local machine?

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Intro to Computing - How the Internet Works

You want to block access to a website by modifying the local hosts file. Which entry correctly blocks badwebsite.com by redirecting it to the local machine?

A255.255.255.0 badwebsite.com

B192.168.1.1 badwebsite.com

C127.0.0.1 badwebsite.com

D0.0.0.0 badwebsite.com

Step-by-Step Solution

Solution:

Step 1: Understand hosts file redirection
The hosts file maps domain names to IP addresses locally. Redirecting to 127.0.0.1 (localhost) blocks the site.
Step 2: Evaluate IP addresses for blocking
127.0.0.1 is the standard localhost IP; 192.168.1.1 is a private network IP; 255.255.255.0 is a subnet mask; 0.0.0.0 can also block but 127.0.0.1 is more common and reliable.
Final Answer:
127.0.0.1 badwebsite.com -> Option C
Quick Check:
Hosts file redirect to localhost = block site [OK]

Quick Trick: Use 127.0.0.1 to block sites via hosts file [OK]

Common Mistakes:

Using subnet masks or invalid IPs in hosts file
Confusing private IPs with localhost
Using 0.0.0.0 which may not work on all systems

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More Intro to Computing Quizzes

You want to block access to a website by modifying the local hosts file. Which entry correctly blocks badwebsite.com by redirecting it to the local machine?

Step 1: Understand hosts file redirection

Step 2: Evaluate IP addresses for blocking

Final Answer:

Quick Check:

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