EMC Updated D-ISM-FN-01 Exam Questions and Answers by rian

TheTransport layer (Layer 4)of the OSI model ensures reliable data transfer between systems by providing:

End-to-end connections– manages communication sessions

Sequencing– orders data packets

Integrity– error detection and correction

Session (Layer 5): Manages sessions and controls dialogues between systems.

Data Link (Layer 2): Deals with local network frame delivery.

Presentation (Layer 6): Translates data formats (like encryption, compression).

Data archiving involves moving infrequently accessed data to a separate storage system, freeing up space on primary storage and reducing costs. It also aids in compliance by retaining data for specified periods, as required by various regulations.

Data backup:Creates copies of data for recovery purposes but doesn't necessarily reduce primary storage usage.

Data archiving:Moves less frequently accessed data to cost-effective storage, aiding compliance and reducing primary storage costs.

Data encryption:Secures data but doesn't impact storage costs or compliance retention.

Data compression:Reduces data size but may not meet compliance requirements for data retention.

AnF_port (Fabric port)is used on a Fibre Channel switch to connectN_ports (Node ports)on end devices like servers and storage arrays.

N_port:On the compute system (HBA).

F_port:On the switch, accepting N_port connections.

E_port:For switch-to-switch ISL (Inter-Switch Link) connections.

G_port:A generic port that can operate as either an F_port or an E_port (not the direct answer in this scenario).

Infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet. It offers fundamental infrastructure services such as compute, storage, and networking, which users can provision and manage through a self-service portal. This model allows organizations to scale resources as needed and pay only for what they use.