In pre-shared key mode, a passphrase should be at least 20 characters long.

Prepare for the Network Security Examination by mastering key concepts in cybersecurity. Utilize interactive questions and detailed explanations to enhance your knowledge. Excel in your exam with our comprehensive preparation resources!

Multiple Choice

In pre-shared key mode, a passphrase should be at least 20 characters long.

Explanation:
The security benefit comes from the entropy of the passphrase: longer inputs create a vastly larger space of possible combinations, making offline guessing much harder for an attacker who obtains the pre-shared key. Saying the passphrase should be at least 20 characters sets a minimum that provides a meaningful boost in security over shorter options. Among the lengths listed, eight characters is too short and easily brute-forced; sixty-four and one hundred characters certainly meet the requirement but are not the smallest acceptable length. Therefore, twenty characters is the smallest length that satisfies the requirement and offers a solid balance between security and usability.

The security benefit comes from the entropy of the passphrase: longer inputs create a vastly larger space of possible combinations, making offline guessing much harder for an attacker who obtains the pre-shared key. Saying the passphrase should be at least 20 characters sets a minimum that provides a meaningful boost in security over shorter options. Among the lengths listed, eight characters is too short and easily brute-forced; sixty-four and one hundred characters certainly meet the requirement but are not the smallest acceptable length. Therefore, twenty characters is the smallest length that satisfies the requirement and offers a solid balance between security and usability.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy