Security+ Exam Tutoring: Key Stretching, Salting, And Firewalls

Bonjour! 👋🏾

Studying for the Security+ SY0-701 exam? Here is a quick exam question breakdown I’ve put together for you. 💯 

It’s focused on easy explanations for concepts like; 

• key stretching (objective 1.4),
• salting (objective 1.4),
• and Extensible Authentication Protocol Extensible (objective 3.2).

Also, I have a quick breakdown on how I approach those pesky firewall questions.

Here is the firewall question I'm talking about in this episode so you can follow along:

An enterprise is trying to limit outbound DNS traffic originating from its internal network. Outbound DNS requests will only be allowed from one device with the IP address 10.50.10.25. Which of the following firewall ACLs will accomplish this goal?

A.
Access list outbound permit 0.0.0.0/0 0.0.0.0/0 port 53
Access list outbound deny 10.50.10.25/32 0.0.0.0/0 port 53

B.
Access list outbound permit 0.0.0.0/0 10.50.10.25/32 port 53
Access list outbound deny 0.0.0.0/0 0.0.0.0/0 port 53

C. 
Access list outbound permit 0.0.0.0/0 0.0.0.0/0 port 53
Access list outbound deny 0.0.0.0/0 10.50.10.25/32 port 53

D. 
Access list outbound permit 10.50.10.25/32 0.0.0.0/0 port 53
Access list outbound deny 0.0.0.0/0 0.0.0.0/0 port 53 

You can view the video version of this breakdown on my Cybersecurity Goals Patreon page here: 

https://www.patreon.com/posts/comptia-security-110147022

Subscribe to my Patreon page for some of the same helpful exam, career, and coaching resources I provide my tutoring clients for their cybersecurity goals! 

I hope the content is informative and helpful in your goal to pass the CompTIA Security+ exam! 

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