Which two statements are true about network attacks? (Choose two.)

Which two statements are true about network attacks? (Choose two.)

• Strong network passwords mitigate most DoS attacks.
• Worms require human interaction to spread, viruses do not.
• Reconnaissance attacks are always electronic in nature, such as ping sweeps or port scans.
• A brute-force attack searches to try every possible password from a combination of characters.
• Devices in the DMZ should not be fully trusted by internal devices, and communication between the DMZ and internal devices should be authenticated to prevent attacks such as port redirection.

Exam with this question: CCNA Exploration 4: EWAN Chapter 4 Exam