Networking ConceptsCâu 21 / 100
Which protocol uses TCP port 22 to provide encrypted remote command-line access?
a.Telnet
b.FTP
c.RDP
d.SSH
Giải thích
SSH uses TCP port 22 to provide an encrypted remote shell, replacing insecure protocols like Telnet. Telnet on port 23 sends data in clear text. SSH is the standard for secure device management.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với CompTIA Network+ (N10-009) · Quy trình kiểm tra