Free Practice Questions for EMC D-ISM-FN-01 Exam

5Grepresents the fifth generation of mobile networks and offers several significant advantages over 4G, 3G, and earlier generations:

Increased speed:5G delivers data speeds up to 100 times faster than 4G LTE.

Enhanced capacity:Supports more devices per square kilometer, crucial for IoT and smart cities.

Low latency:Reduces delay in data transmission, enabling real-time applications like remote surgeries or autonomous vehicles.

Increased bandwidth(Option B) is part of the overall increased capacity.

Reduced distance(Option C) is incorrect; 5G uses shorter wavelengths, meaning shorter range.

Lower cost(Option D) is not a key advantage of 5G technology itself.

Configuration Management is the process that ensures all configuration items (CIs) are identified, tracked, and maintained throughout their lifecycle. It maintains a Configuration Management Database (CMDB) that records the relationships and configurations of various components in the IT environment.

Rebuilding a RAID 5 array after a disk failure depends on:

Capacity of the failed disk (C)– More data means longer rebuild time.

Write performance of the remaining disks (B)– Rebuild involves recalculating parity and writing data to the replacement disk, which stresses the surviving disks.

Network bandwidth (A)is only relevant for accessing the array, not for internal rebuild operations.

Cache capacity (D)helps performance in some scenarios, but the direct factors are disk size and performance.

FCIP (Fibre Channel over IP)is used totunnel Fibre Channel traffic over IP networks. Its primary use case:

Connecting local FC SANs to remote FC SANsfor disaster recovery and remote data replication.

Itencapsulates FC framesinto IP packets, transporting them over existing IP infrastructure.

Option B/C/D:iSCSI is not directly involved in FCIP’s primary function.

Using SSDs as asecondary cache(sometimes called a “flash cache”) helps:

Improve read performanceby storing frequently accessed data in the faster SSDs.

Reduce latency for read requests because SSDs are much faster than traditional spinning hard drives (HDDs).

Power consumption (A): SSDs do use less power, but the primary goal here is performance.

Data backup (C): SSD cache doesn’t impact backup operations.

Storage capacity (D): This is not the main focus; the SSDs act as a cache layer only.

Thefirst step in any ML projectis tocollect the datasetsthat will be used to train and validate the model.

This data collection step ensures you haveenough representative examples.

After this, data is analyzed, learning type is chosen, and the model is trained.

IP packet segmentationcan cause replication performance issues over the WAN.

Since FCIP tunnels FC frames over IP networks, if the IP packet size exceeds the MTU, packets are fragmented and reassembled, increasing latency.

TE_Port modeis used for trunking, not related to packet fragmentation.

EX_Port modeis used for inter-switch connectivity (FCR).

Ethernet frame segmentationis not relevant in FCIP tunneling.

Native NVMeis a protocol designed for direct-attached storage (DAS) environments. It allows a host to communicate with NVM storage devices (like NVMe SSDs) within the same server.

Limitation:Native NVMedoes notsupport external NVMe storage connectivity beyond the server.

To connect to external shared NVMe storage, protocols likeNVMe over Fabrics (NVMe-oF)are used.

Dell RecoverPoint is a continuous data protection (CDP) solution that uses journaling to provideany point-in-time recoveryof data. It continuously captures and replicates data changes, storing them in a journal to enable precise recovery to any required point in the past.

Dell SRDF (Symmetrix Remote Data Facility):Provides synchronous/asynchronous replication, not CDP.

Dell TimeFinder SnapVX:Creates point-in-time snapshots but doesn’t offer continuous journaling.

Dell Cloud Tier:Used for archiving older data to the cloud.