Each of these diagnostic capabilities requires the user to have unlocked their device and agreed to trust another computer. 

각각의 분석은 사용자가 장비를 해제 후 동의한 신뢰할 수 있는 컴퓨터에서 작동한다.

1. com.apple.mobile.pcapd

pcapd supports diagnostic packet capture from an iOS device to a trusted computer. This is useful for troubleshooting and diagnosing issues with apps on the device as well as enterprise VPN connections. You can find more information at developer.apple.com/library/ios/qa/qa1176.

신뢰관계가 있는 컴퓨터에서 iOS 장비에 페킷 분석. 기업용 VPN 연결 문제 해결용.

2. com.apple.mobile.file_relay

file_relay supports limited copying of diagnostic data from a device. This service is separate from user-generated backups, does not have access to all data on the device, and respects iOS Data Protection. Apple engineering uses file_relay on internal devices to qualify customer configurations. AppleCare, with user consent, can also use this tool to gather relevant diagnostic data from users' devices.

장비에서 분석데이터가 복사되는 것을 제한하는 것을 지원함. 사용자 백업정보와 분리되어있음. 애플케어 사용시 사용자 동의가 있을때 관련 데이터 전송용.

3. com.apple.mobile.house_arrest

house_arrest is used by iTunes to transfer doc-uments to and from an iOS device for apps that support this functionality. This is also used by Xcode to assist in the transfer of test data to a device while an app is in development.

아이튠즈를 이용한 문서 전송시. Xcode를 이용한 개발자용 테스트 데이터 전송시 지원.

간추려 번역.