フリー問題

問題文

A two way TLS integration fails during the handshake, and the server log says it could not verify the certificate the client presented. Which side has the missing piece?

選択肢

1. The client, whose key store lacks the authority that issued the certificate of the server.
2. The server, whose trust store lacks the authority that issued the certificate of the client.
3. The server, whose key store lacks the private key that matches the certificate of the client.
4. The client, whose trust store lacks the authority that issued the server certificate.