Apple Updated Apple-Device-Support Exam Questions and Answers by kenzo

APFS is a file system that supports encryption at the volume level. Each volume has its own encryption key, called the Volume Encryption Key (VEK), which is stored in the APFS container metadata and protected by another key, called the Key Encryption Key (KEK). The KEK is derived from the user’s password and wrapped by a secure token, which is a feature that ensures only authorized users can access the encrypted data. According to the Apple Device Support Reference Materials12, the following scenarios cause APFS volumes to generate encryption keys:

• During user creation. When a new user is created on an APFS volume, a secure token is generated for that user and a KEK is derived from the user’s password. The KEK is used to encrypt the VEK and store it in the metadata.
• During the first user’s password creation. When the first user on an APFS volume sets their password, a secure token is granted to that user and a KEK is derived from the password. The KEK is used to encrypt the VEK and store it in the metadata.
• After erase content and setting. When a user erases all content and settings on an APFS volume, the VEK and the KEK are deleted and new ones are generated. The new VEK is encrypted with the new KEK and stored in the metadata.

References:

• Use secure token, bootstrap token, and volume ownership in deployments.
• Data Protection in Apple devices.

Legacy Contact is a new feature introduced by Apple in iOS 15.2, iPadOS 15.2, and macOS 12.1 that allows users to designate up to five people who can access their Apple account and data after they pass away. Legacy Contacts need to have the unique access key that the user created when they added them as a Legacy Contact, and a copy of the user’s death certificate, to request access to the user’s account. Legacy Contacts can access data stored in iCloud, such as photos and documents, but not services that require subscriptions, such as Apple Music or Apple TV+. The other options are not valid services offered by Apple. References: How to request access to a deceased family member’s Apple account, How to set up Apple account access so people can get in after you die

 A warning icon might appear in the Security Recommendation window for a password in Passwords settings if the password meets any of the following criteria:

• The password is reused on another website. This means that the same password is used for more than one saved password across different domains. This can make the accounts vulnerable to credential-stuffing attacks, where attackers try the same credentials on other services to compromise additional accounts1.
• The password appeared in a data leak. This means that the password has been compromised by a data breach and exposed online. This can allow attackers to access the accounts that use the leaked password or try to guess other passwords based on the leaked one1.
• It’s a commonly used password or it’s easily guessed. This means that the password is weak and may be easily cracked by an attacker. This can happen if the password uses words found in a dictionary, common character substitutions, patterns found on a keyboard, or repeated sequences. These patterns are often used to create passwords that satisfy minimum password requirements for services, but are also commonly used by attackers attempting to obtain a password using brute force1. References: 1: Password security recommendations - Apple Support

According to the Apple Device Support Reference Materials, you can change the undo send delay setting on your iPad by going to Settings > Mail > Undo Send Delay1. This setting allows you to unsend an email within a certain time frame after you tap the send button. You can choose from Off, 10 seconds, 20 seconds, or 30 seconds. The other options, A, B, and C, are not correct because they are not the correct paths to access the undo send delay setting. General > Mail > Undo Send Delay is not a valid path in the iPad settings2. Open your mail app then open settings and select Undo Send Delay is not a valid option because the mail app does not have its own settings menu3. Settings > Mail > Accounts > Undo Send Delay is not a valid path because the Accounts section does not have an undo send delay option4. References: 1: Unsend email with Undo Send in Mail on iPad - Apple Support, Section "Delay sending emails". 2: General settings on iPad - Apple Support 3: Mail settings overview for iPad - Apple Support 4: Manage email accounts in Mail on iPad - Apple Support