Which solution encrypts all traffic between two internal networks?
An enterprise is working with a third party and needs to allow access between the internal networks of both parties for a secure file migration. The solution needs to ensure encryption is applied to all traffic that is traversing the networks. Which of the following solutions should most likely be implemented?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The exam expects you to recognize that IPSec operates at the network layer to encrypt entire IP traffic between sites, while TLS only protects specific application protocols like HTTPS.
This SY0-701 question tests which technology securely connects internal networks of two enterprises for file migration. Community consensus is IPSec because it encrypts all IP traffic between network locations.
TLS (D) is the most commonly confused answer because it also provides encryption, but TLS is designed for application-level communications such as web traffic, not for securing all traffic between entire internal networks.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
IPSec is a protocol suite that provides confidentiality, integrity, and authentication at the IP layer. It can be used in tunnel mode to create a secure VPN connection between the networks of the enterprise and the third party. This ensures all traffic traversing the link is encrypted, which is ideal for a secure file migration between internal networks.Why the Other Options Are Wrong
EAP (A) is an authentication framework, not an encryption solution. SD-WAN (C) is a WAN architecture that may use IPsec or other encryption, but it is not a direct encryption protocol itself. TLS (D) is used to secure individual applications such as HTTPS, but it does not automatically encrypt all IP traffic between networks; it must be embedded in each application.Community Comment Notes
Comment [1] correctly explains the distinction: IPsec secures communication between networks or remote sites, while TLS is primarily for web-based communication. Comment [2] reinforces that IPsec's ability to encrypt, authenticate, and ensure integrity of all data packets makes it the best fit for protecting communications between the enterprise and the third party.Official Reference
Exam Strategy
On the exam, when a scenario describes securing traffic between entire networks or sites, choose IPsec; when it describes securing a specific application like web or email, choose TLS. This distinction is a common deciding factor in CompTIA Security+ questions.
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