350-601 Storage Network Practice Test 18 — 15 Questions

Question 1

An engineer is configuring a Cisco MDS switch to connect two SAN islands using a Fibre Channel ISL. The interfaces on both switches are set to auto mode. However, the link does not come up. What is the most likely cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The ports are in auto mode and neither side is configured as E-port.. On Cisco MDS switches, ports in auto mode negotiate to become F-ports by default. For an ISL, at least one side must be configured as E-port to force the link to become an E-port.

Answer

Both switches have the same domain ID.

Answer

The ISL link requires a minimum speed of 8 Gbps.

Answer

The ports are configured in F-port mode.

Question 2

A storage engineer is configuring replication between two data centers. The distance is 500 km with a round-trip latency of 10 ms. The application requires zero data loss in the event of a primary site failure. Which replication method should be chosen?

Accepted Answer

Synchronous replication. Synchronous replication ensures zero data loss (RPO=0) as writes are acknowledged only after being committed on both sites. However, it is sensitive to latency; with 10 ms RTT, performance may degrade but it meets the requirement.

Answer

Snapshot-based replication

Answer

Asynchronous replication

Answer

RAID-10 mirroring

Question 3

Which Fibre Channel address component identifies the port on a storage target?

Accepted Answer

WWPN. WWPN (World Wide Port Name) is a globally unique 64-bit identifier assigned to each Fibre Channel port.

Answer

WWNN

Answer

FCID

Answer

VSAN ID

Question 4

A Cisco MDS switch is configured with NPV mode. A host NPIV-capable HBA is connected to this switch. The HBA needs to log in with multiple N-port IDs to support multiple virtual machines. What must be configured on the MDS switch to allow this?

Accepted Answer

NPIV. NPIV (N_Port ID Virtualization) allows multiple FCIDs on a single N-port. On an NPV switch, NPIV must be enabled to allow the HBA to register multiple IDs.

Answer

PortChannel

Answer

VSAN trunking

Answer

Zoning

Question 5

During FCoE initialization, which protocol is used by a CNA to discover FCoE-capable switches and establish a virtual link?

Accepted Answer

FIP. FIP (FCoE Initialization Protocol) is used by CNAs to discover FCoE switches (FCFs) and perform login to create VN-ports.

Answer

LLDP

Answer

DCBX

Answer

ARP

Question 6

A storage array supports RAID-5, RAID-6, and RAID-10. The array has 12 disks of equal size. The requirement is to maximize usable capacity while tolerating up to two simultaneous disk failures without data loss. Which RAID level should be chosen?

Accepted Answer

RAID-6. RAID-6 can tolerate two disk failures with parity overhead of 2 disks, providing high usable capacity. RAID-5 tolerates only one failure; RAID-10 tolerates multiple failures but capacity is 50%.

Answer

RAID-10

Answer

RAID-5

Answer

RAID-0

Question 7

A storage administrator is configuring iSCSI security. Which two methods can be used to authenticate iSCSI initiators to a target? (Choose two.)

Accepted Answer

CHAP. CHAP is the standard authentication for iSCSI, and IP-based ACLs are a common access control method. Mutual CHAP is an option, but CHAP is the base.

Answer

WWN zoning

Answer

FCoE VLANs

Answer

VSAN membership

Question 8

A network engineer is configuring FCoE on a Cisco Nexus switch. Which two DCB features must be enabled to support lossless Ethernet for FCoE traffic? (Choose two.)

Accepted Answer

PFC (Priority Flow Control). PFC (Priority Flow Control) provides per-priority pause to prevent frame loss, and ETS (Enhanced Transmission Selection) allocates bandwidth among traffic classes.

Answer

IGMP snooping

Answer

STP (Spanning Tree Protocol)

Answer

LACP (Link Aggregation Control Protocol)

Question 9

An organization is deploying a new Fibre Channel SAN with Cisco MDS switches. The design requires high availability and load sharing over multiple ISLs. Which three features should be implemented? (Choose three.)

Accepted Answer

Fibre Channel PortChannels. VSAN trunking (EISL) allows multiple VSANs over a single ISL; PortChannels aggregate multiple physical ISLs into a logical link with load balancing; multiple active equal-cost paths (FSPF) provide load sharing and redundancy.

Answer

NPIV

Answer

Hard zoning by WWPN

Question 10

A storage administrator has deployed a Fibre Channel fabric with two MDS switches. Each host has a single HBA. Which port type is used to connect the HBA to the switch?

Accepted Answer

N-port. An N-port is a host (node) port that connects to an F-port on the switch. The HBA operates in N-port mode by default.

Answer

F-port

Answer

E-port

Answer

NP-port

Question 11

An engineer is configuring a Cisco MDS switch to connect two SAN islands using a Fibre Channel ISL. The interfaces on both switches are set to auto mode. However, the link does not come up. What is the most likely cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

NP-port. In NPV mode, the edge switch uses NP-ports to connect to the core switch's F-ports. This allows the edge switch to appear as a host to the core fabric.

Answer

F-port

Answer

E-port

Answer

auto

Question 12

A data center administrator is implementing FCoE on a Cisco UCS fabric. The converged network adapters (CNAs) must communicate with the Fibre Channel storage array via the FCoE forwarder. Which FCoE port type is used on the CNA to connect to the FCoE forwarder?

Accepted Answer

VN-port. VN-port (Virtual N-port) is the FCoE equivalent of an FC N-port, used by the CNA to connect to the FCoE switch's VF-port (Virtual F-port).

Answer

VE-port

Answer

VF-port

Answer

E-port

Question 13

A storage engineer needs to isolate two Fibre Channel fabrics within the same physical infrastructure using Cisco MDS switches. Which feature allows the creation of multiple logical Fibre Channel networks on the same set of switches?

Accepted Answer

VSANs. VSANs (Virtual SANs) provide isolation similar to VLANs in Ethernet, allowing multiple separate FC fabrics to operate on the same physical switches.

Answer

NPV

Answer

PortChannels

Answer

Zoning

Question 14

During an iSCSI deployment, an administrator configures CHAP authentication between the initiator and target. Which statement about CHAP in iSCSI is correct?

Accepted Answer

In one-way CHAP, only the initiator is authenticated to the target.. One-way CHAP uses a secret configured on both sides, but two-way CHAP (mutual authentication) uses separate secrets in each direction.

Answer

CHAP authentication is performed after the iSCSI login phase is complete.

Answer

The CHAP secret is sent in cleartext over the network.

Answer

CHAP uses a one-way hash to authenticate the target to the initiator only.

Question 15

A NetApp storage array is configured for synchronous replication between two data centers. The round-trip latency is 2 ms. Which RAID type provides the best balance of capacity efficiency and protection for the primary storage volumes that are replicated?

Accepted Answer

RAID-10. RAID-10 offers high performance and availability with mirroring and striping, but capacity efficiency is lower (50% usable). RAID-6 provides better capacity efficiency (2 parity disks) but with higher write overhead. Given synchronous replication, RAID-10 is often preferred for performance.

Answer

RAID-5

Answer

RAID-6

Answer

RAID-0