H13-511_V5.5 · Question #509
DAS & SAN support data transmission over fiber channel or IP networks, while NAS support data transmission over I've been at works only.
The correct answer is A. true. Option A is correct because SANs are designed to operate over dedicated Fiber Channel (FC) networks or IP-based networks using iSCSI, giving them flexibility in high-performance block-level storage environments. NAS devices, by contrast, communicate exclusively over standard…
Question
DAS & SAN support data transmission over fiber channel or IP networks, while NAS support data transmission over I've been at works only.
Options
- Atrue
- Bfalse
How the community answered
(59 responses)- A80% (47)
- B20% (12)
Explanation
Option A is correct because SANs are designed to operate over dedicated Fiber Channel (FC) networks or IP-based networks using iSCSI, giving them flexibility in high-performance block-level storage environments. NAS devices, by contrast, communicate exclusively over standard Ethernet/IP networks using file-level protocols like NFS or SMB/CIFS - they are tightly coupled to LAN infrastructure. DAS (Direct-Attached Storage), while not truly networked, can leverage Fiber Channel interfaces for direct host connections, placing it in a similar protocol family as SAN. Option B is wrong because it would imply NAS can use Fiber Channel networks, which it cannot - NAS is inherently an Ethernet-only technology.
Memory tip: Think "SAN = specialized network (FC or IP), NAS = normal network (Ethernet)." The "S" in SAN stands for a specialized network fabric, while the "N" in NAS reminds you it lives on your normal office network.
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