350-601 Storage Network Practice Test 21 — 15 Questions

Question 1

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 a CNA to discover FCoE-capable switches and establish a virtual link. FIP handles VLAN discovery, FCF discovery, and virtual link establishment. It is the control protocol for FCoE initialization.

Answer

LLDP

Answer

DCBX

Answer

ARP

Question 2

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 3

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) [CORRECT] is required because it provides per-priority, IEEE 802.1Qbb link-level flow control that pauses only the CoS priority used by FCoE, preventing frame drops and enabling lossless behavior on the Ethernet link. ETS (Enhanced Transmission Selection) [CORRECT] is required because it implements IEEE 802.1Qaz bandwidth allocation per traffic class, guaranteeing the FCoE class a defined share of link bandwidth so congestion does not starve or drop storage traffic. Together, PFC and ETS form the core of the DCB lossless Ethernet requirements for FCoE on a Nexus switch. IGMP snooping is not a DCB feature and only optimizes multicast forwarding, STP is a Layer 2 loop-prevention protocol unrelated to lossless flow control, and LACP is a link-aggregation control protocol that does not provide per-priority pause or bandwidth guarantees.

Answer

IGMP snooping

Answer

STP (Spanning Tree Protocol)

Answer

LACP (Link Aggregation Control Protocol)

Question 4

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 (Node port) is the port type on an end device, such as a host HBA, that connects to a switch. In this scenario, the HBA is the node, so it uses an N-port to connect to the switch's F-port. Therefore, the port type used on the HBA is N-port.

Answer

F-port

Answer

E-port

Answer

NP-port

Question 5

An engineer is configuring a Cisco MDS switch to connect to a core switch in NPV mode. The edge switch will be connected to the core via an ISL. What port mode should be configured on the edge switch's interface connecting to the core?

Accepted Answer

NP-port. In NPV (N_Port Virtualization) mode, the edge switch does not participate in the core fabric's domain ID space. Instead, its uplink to the core acts as an NP-port (N-port proxy), which behaves like an N-port to the core but proxies logins from the edge devices. Therefore, the interface on the edge switch connecting to the core must be configured as an NP-port.

Answer

F-port

Answer

E-port

Answer

auto

Question 6

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. A VN-port (VN_Port) is the virtual N-port emulated by a converged network adapter in an FCoE environment. It performs FLOGI with the FCoE forwarder (FCF) and behaves exactly like a physical FC N-port from the fabric's perspective, which is why it is the correct port type on the CNA side.

Answer

VE-port

Answer

VF-port

Answer

E-port

Question 7

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) allow the creation of multiple logical Fibre Channel networks on the same set of physical switches. Each VSAN is an independent fabric with its own zoning and services, providing isolation between fabrics within the same physical infrastructure.

Answer

NPV

Answer

PortChannels

Answer

Zoning

Question 8

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.. In one-way CHAP, the target challenges the initiator, and only the initiator proves its identity to the target. This is the default and most common iSCSI CHAP mode, used to prevent unauthorized initiators from accessing LUNs. Mutual (two-way) CHAP is required if the initiator must also authenticate the target.

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 9

A storage engineer is planning an FCoE deployment in a data center. The network must support lossless Ethernet for Fibre Channel traffic. Which three Data Center Bridging (DCB) features are required? (Choose three.)

Accepted Answer

Priority Flow Control (PFC). Priority Flow Control (PFC, option A) is required because it provides per-priority, class-based pause frames (IEEE 802.1Qbb) that prevent frame drops on the lossless CoS used for FCoE traffic, which native Fibre Channel cannot tolerate. Enhanced Transmission Selection (ETS, option C) is required because it guarantees bandwidth allocation per traffic class (IEEE 802.1Qaz) so storage, LAN, and IPC classes each receive their configured share while unused bandwidth can be borrowed. Data Center Bridging Exchange (DCBX, option E) is required because it uses LLDP TLVs to advertise and negotiate PFC, ETS, and other DCB parameters between the server CNA/NIC and the switch, ensuring consistent configuration end to end. LACP (option B) is a link-aggregation protocol for bundling links and is not a DCB lossless feature, and STP (option D) is a loop-prevention protocol that is actually undesirable in a lossless FCoE fabric, where technologies like TRILL or shortest-path forwarding are preferred.

Answer

Link Aggregation Control Protocol (LACP)

Answer

Spanning Tree Protocol (STP)

Question 10

A network engineer is configuring a Cisco MDS 9000 switch for Fibre Channel zoning. The engineer wants to create a zone that allows a specific host (pWWN 20:00:00:25:B5:00:00:01) to access a specific storage port (pWWN 20:00:00:25:B5:00:00:02). Which zoning method should be used to ensure that only these two devices can communicate?

Accepted Answer

Create a zone with the two pWWNs and add it to a zoneset, then activate the zoneset.. Zoning by pWWN is the most precise and flexible method to allow communication between specific devices. It is independent of physical port and FC ID changes. Activating the zoneset enforces the zone configuration.

Answer

Create a zone using the domain ID and port number of the host and storage ports, then activate the zoneset.

Answer

Create a zone with the interface names of the host and storage ports, then activate the zoneset.

Answer

Create a zone using the FC ID of the host and storage ports, then activate the zoneset.

Question 11

A storage administrator is configuring a Cisco MDS 9700 switch to provide virtual SAN (VSAN) isolation between two departments. The administrator creates VSAN 10 and VSAN 20, assigns interfaces to each VSAN, and then attempts to configure a trunk port that carries both VSANs. Which command must be used to enable trunking on the interface?

Accepted Answer

switchport trunk mode on. To enable trunking on a Cisco MDS Fibre Channel interface, the correct command is 'switchport trunk mode on'. This allows the interface to carry traffic for multiple VSANs. After enabling trunking, you can specify allowed VSANs with 'switchport trunk allowed vsan'. The other options are either incorrect syntax or apply to different technologies.

Answer

switchport mode trunk

Answer

vsan trunk enable

Answer

switchport trunk allowed vsan 10,20

Question 12

A storage administrator is designing a Fibre Channel SAN for a virtualized server environment. The environment requires that a single physical HBA port on a server can present multiple distinct Fibre Channel identities to the fabric, each with its own WWPN and fabric-assigned FC ID. Which technology should be used to meet this requirement?

Accepted Answer

N_Port ID Virtualization (NPIV). NPIV is the correct technology because it enables a single physical N_Port to register multiple virtual N_Port identities with the fabric, each with its own WWPN and FC ID. This is essential in virtualized environments where each virtual machine needs its own Fibre Channel identity for zoning and fabric services. NPV, PortChannel, and VSAN trunking do not provide multiple identities on a single HBA port.

Answer

VSAN trunking on the host port

Answer

PortChannel with multiple physical links

Answer

N_Port Virtualization (NPV)

Question 13

A data center engineer is implementing Fibre Channel over Ethernet (FCoE) on a Cisco Nexus 7000 series switch. The switch must forward FCoE traffic from a server to a Fibre Channel SAN. The engineer configures a VLAN and a VSAN, and creates a virtual Fibre Channel (vFC) interface. Which additional configuration is required to bind the vFC interface to the physical Ethernet interface?

Accepted Answer

Under the vFC interface, use the 'bind interface EthernetX/Y' command.. To bind a vFC interface to a physical Ethernet interface on a Cisco Nexus switch, you must use the 'bind interface EthernetX/Y' command under the vFC interface configuration. This creates the association necessary for FCoE traffic. The other options are either incomplete or incorrect commands that do not achieve the binding.

Answer

Enable FCoE on the Ethernet interface using the 'fcoe enable' command.

Answer

Configure the Ethernet interface as an access port in the FCoE VLAN.

Answer

Configure the Ethernet interface as a trunk port and allow the FCoE VLAN.

Question 14

A storage administrator is configuring a Cisco MDS 9700 switch for a new SAN. The fabric uses VSAN 10 for production and VSAN 20 for backup. The administrator wants to ensure that FSPF routing and fabric services are isolated per VSAN. Which statement correctly describes how VSANs provide this isolation on the MDS 9700?

Accepted Answer

Each VSAN runs an independent instance of FSPF and fabric services, and a port can belong to only one VSAN at a time.. VSANs on Cisco MDS switches create independent fabric instances, each with its own FSPF, zone server, and other services. Ports are assigned to a single VSAN, ensuring traffic separation. This design provides complete logical isolation without requiring separate physical switches.

Answer

VSANs provide isolation only for zoning, while routing and other fabric services remain global across all VSANs.

Answer

A port can be a member of multiple VSANs simultaneously, allowing a single host to access both production and backup storage.

Answer

VSANs share a single FSPF instance but use separate zone databases to isolate traffic.

Question 15

A Cisco MDS 9000 switch is connected to a storage array and a server. The administrator notices that the server can see the storage array's target port, but the server cannot access the LUN because the zone set is not active. The administrator has already created the zones and zone set, and added them to the VSAN. Which command must be issued to activate the zone set?

Accepted Answer

zoneset activate name vsan . The zoneset activate command is required to make the zone set effective in the VSAN. Creating zones and a zone set only defines the configuration; activation enforces it. The other commands either save, distribute, or modify default zone behavior, but none activate the zone set. Without activation, the server cannot access the LUN despite correct zone definitions.

Answer

zone commit vsan <vsan-id>

Answer

zoneset distribute full vsan <vsan-id>

Answer

zone default-zone permit vsan <vsan-id>