A cloud administrator set up a link between the private and public cloud through a VPN tunnel. As part of the migration, a large set of files will be copied. Which of the following network ports are…

The correct answer is B. 22, 443, 445. Option B (22, 443, 445) represents the most security-conscious selection for file migration. Port 22 is used by SSH and SFTP, enabling encrypted file transfer and secure remote access. Port 443 is HTTPS, used for secure management console access and API communication with the…

Security

Question

A cloud administrator set up a link between the private and public cloud through a VPN tunnel. As part of the migration, a large set of files will be copied. Which of the following network ports are required from a security perspective?

Options

A22, 53, 445
B22, 443, 445
C25, 123, 443
D137, 139, 445

How the community answered

(30 responses)

A
3% (1)
B
93% (28)
C
3% (1)

Explanation

Option B (22, 443, 445) represents the most security-conscious selection for file migration. Port 22 is used by SSH and SFTP, enabling encrypted file transfer and secure remote access. Port 443 is HTTPS, used for secure management console access and API communication with the public cloud. Port 445 is SMB (Server Message Block), used for Windows file sharing across the network. Option A is wrong because port 53 (DNS) is not necessary for file copying. Option C is wrong because port 25 (SMTP) is email and port 123 (NTP) is time synchronization - neither is needed for file migration. Option D is wrong because ports 137 and 139 are legacy NetBIOS ports that are less secure and typically blocked in modern environments.

Topics

#Network ports#Security protocols#Cloud migration#File transfer

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