試験312-50v13-JPN トピック1 問題633 スレッド
ECCouncil 312-50v13-JPNのリアル試験問題集
問題 #: 633
トピック #: 1
問題 #: 633
トピック #: 1
FTPトラフィックはデフォルトでは暗号化されていませんが、どのレイヤー3プロトコルを使用すれば接続のエンドツーエンド暗号化が可能になりますか？
おすすめの解答：D 解答を投票する
The correct answer is D. IPsec (Internet Protocol Security). The question specifically asks for a Layer 3 protocol that can provide end-to-end encryption for FTP traffic. IPsec operates at the Network Layer (Layer
3) of the OSI model and secures IP communications by providing confidentiality, integrity, authentication, and anti-replay protection.
Since standard FTP transmits usernames, passwords, and data in plaintext, it is vulnerable to packet sniffing and man-in-the-middle attacks. By implementing IPsec, all IP packets exchanged between the client and server can be encrypted regardless of the application being used. This means FTP traffic can be protected without modifying the FTP application itself.
Option A (FTPS) uses SSL/TLS to secure FTP but operates at higher layers. Option B (SFTP) is a secure file transfer protocol that runs over SSH and is considered an application-layer solution rather than a Layer 3 protocol. Option C (SSL) provides transport/session-layer encryption and is not a Layer 3 protocol.
CEH Exam Tip:
* IPsec = Layer 3 (Network Layer) Encryption
* SSL/TLS = Higher-layer Encryption
* SFTP = SSH-based Secure File Transfer
* FTPS = FTP over SSL/TLS
Therefore, the best answer is D. IPsec.
3) of the OSI model and secures IP communications by providing confidentiality, integrity, authentication, and anti-replay protection.
Since standard FTP transmits usernames, passwords, and data in plaintext, it is vulnerable to packet sniffing and man-in-the-middle attacks. By implementing IPsec, all IP packets exchanged between the client and server can be encrypted regardless of the application being used. This means FTP traffic can be protected without modifying the FTP application itself.
Option A (FTPS) uses SSL/TLS to secure FTP but operates at higher layers. Option B (SFTP) is a secure file transfer protocol that runs over SSH and is considered an application-layer solution rather than a Layer 3 protocol. Option C (SSL) provides transport/session-layer encryption and is not a Layer 3 protocol.
CEH Exam Tip:
* IPsec = Layer 3 (Network Layer) Encryption
* SSL/TLS = Higher-layer Encryption
* SFTP = SSH-based Secure File Transfer
* FTPS = FTP over SSL/TLS
Therefore, the best answer is D. IPsec.
杉浦** 2026-11-06 06:16:52
コメント
他人の解答コメントを賛成するのも、その解答に一票を入れることになります。したがって、すでに同じ意見の投票コメントが存在する場合、新規コメントをする代わりに賛成することもできます。
コメントを通報する
コメント中
今すぐ 新規登録 / ログイン （無料です）。