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ISC2 Systems Security Certified Practitioner (SSCP) Practice Question

Your company must set up a secure file-transfer service so business partners can pull monthly reports from a DMZ server. The partner's firewall permits inbound traffic only on TCP 22, and the network team has stated that no additional ports can be opened. Transfers must be encrypted and support automated, password-less authentication. Which approach meets the security and network constraints with minimal additional configuration?

  • Deploy SFTP (SSH File Transfer Protocol) on the server, restrict access to key-based logins, and listen on port 22.

  • Configure implicit FTPS with a server certificate and listen on port 990 for the control channel.

  • Retain legacy FTP but tunnel the traffic through an IPsec VPN between the two sites.

  • Enable explicit FTPS over TLS on port 21 in passive mode so data channels are allocated dynamically.

ISC2 Systems Security Certified Practitioner (SSCP)
Cryptography
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