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QUESTION 75
A fully loaded Cisco MDS 9506 Multilayer Director requires 2190 watts of power. If 110-volt power is provided to the switch, at which power mode would the switch operate?
A. The director would operate in redundant mode only.
B. The director would operate in combined mode only.
C. The director would operate in redundant mode or combined mode.
D. The director cannot operate with 110-volt power.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 76
Which SAN topology should be used for the largest SAN fabrics?
A. arbitrated loop
B. full mesh
C. core-edge
D. cascade
E. collapsed core
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 77
What are two MDS features that increase the efficiency of a multiple switch Fibre Channel fabric? (Choose two.)
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A. Port Channel
B. CDP
C. FCP
D. FCC
E. CUP
Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 78
Exhibit: Refer to the exhibit. A customer has deployed the Cisco MDS topology shown above, using a single VSAN. The customer notices that performance on Servers B, C, D, E, and F becomes very poor when Server A starts a large backup operation. Which MDS feature can be enabled to prohibit the backup operation from causing performance problems on the remaining servers?
A. quality of service
B. FSPF traffic engineering
C. virtual output queuing
D. Fibre Channel Congestion Control
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 79
Select three characteristics of the Cisco coarse wave division multiplexing (CWDM) solution. (Choose three.)
A. multiplexes up to eight wavelengths across a single fiber pair Actualtests.com – The Power of Knowing 642-355
B. supports a maximum connection length of 220 kilometers
C. supports both linear and ring topologies
D. requires OADMs (optical add/drop multiplexers) to aggregate multiple wavelengths across the same fiber pair
E. can be optically amplified to extend the distance characteristics
Correct Answer: ACD Section: (none) Explanation
Explanation/Reference:
QUESTION 80
A customer has two data centers connected by dark fiber and also has a requirement for synchronous data replication between the data centers. If the data centers are 48 km apart, what is the most cost effective solution?
A. CWDM
B. IVR
C. FSPF
D. DWDM
E. Native FC
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 81
A customer recently deployed a pair of Cisco MDS 9216i Multilayer Fabric Switches to support an ERP application. The MDS 9216i expansion slot is still unused. The customer examined other infrastructure services and applications to determine if they should leverage the SAN storage capacity, and decided that it would be beneficial to attach eight Microsoft Exchange servers to the SAN. Each Microsoft Exchange server generally drives approximately 50 MBps of disk throughput and has two Fibre Channel host bus adapters. Which line card should be used to support the Microsoft Exchange server SAN connectivity?
A. 16-port Fibre Channel line card
B. 32-port Fibre Channel line card
C. Multiprotocol Services Module line card
D. None; use the IP storage interfaces.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 82
Which SFP and media-type combination would be recommended for a high-speed
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10-kilometer link between two Cisco MDS switches?
A. 2-Gbps-SW, LC SFP, 50/125-micron multimode media
B. 2-Gbps-SW, LC SFP, 62.5/125-micron multimode media
C. 2-Gbps-LW, LC SFP, 9/125-micron single-mode media
D. 1-Gbps-SW, LC SFP, 50/125-micron multimode media
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 83
What are three causes of host oversubscription? (Choose three.)
A. the operating system
B. the PCI bus limitations
C. the RTO and RPO values
D. whether the HBA has a flat FCIDs assigned E. the limits on the maximum I/O and bandwidth rate
Correct Answer: ABE Section: (none) Explanation
Explanation/Reference:
QUESTION 84
A customer is designing a storage network infrastructure to support a database application. Each server will have two 1-Gbps host bus adapters, one connected to each of the two physical fabrics. The disk array has two 2-Gbps Fibre Channel interfaces. Each server will need to drive 20 MBps (encoded) of throughput continuously per host bus adapter, and the multipathing software on each server is not configured for load balancing.What is the maximum number of servers that can be connected to this disk array while satisfying the performance requirement?
A. 8
B. 10
C. 12
D. 14
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 85
Which tool requires the Cisco Fabric Manager Server License to operate?
A. Cisco Performance Manager Actualtests.com – The Power of Knowing 642-355
B. Cisco Fabric Manager
C. Cisco Device Manager
D. Cisco Fabric Analyzer
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 86
Exhibit: Refer to the exhibit. Identify the topology that is represented.
A. core-edge
B. multitier
C. collapsed core
D. loop
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 87
DRAG DROP Your boss at Certkiller .com asks you to show her some benefits of Cisco products. You are required to match the Cisco Value Added feature to the potential issue it would most likely solve.
Actualtests.com – The Power of Knowing 642-355 A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
Actualtests.com – The Power of Knowing 642-355
QUESTION 88
Exhibit:
Refer to the exhibit. What port type should be used between the two switches to maximize performance? Actualtests.com – The Power of Knowing
642-355
A. B
B. E
C. F
D. NL
E. TE
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 89
What MDS 9000 feature provides more efficient SAN utilization by creating hardware-based isolated environments within a single physical SAN infrastructure?
A. VSAN
B. SPAN
C. trunking
D. port channel
E. zones
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 90
A customer has storage arrays from multiple vendors, and is considering a virtualization solution to simplify storage management. Choose three advantages of using a Cisco MDS-based virtualization solution with an MDS 9500 Series Director instead of host-based or storage-based virtualization solutions. (Choose three.)
A. host and storage heterogeneity
B. LUN masking that is simpler to implement
C. virtualization that is closer to the target
D. virtualization that is embedded in the switch module
E. availability
Correct Answer: ADE Section: (none) Explanation
Explanation/Reference:
QUESTION 91
What are three key benefits of implementing a SAN using iSCSI? (Choose three.)
A. uses existing IP networking, monitoring, and management infrastructure
B. is more efficient than FC since it requires fewer encapsulations
C. maintains consistent performance over IP networks of varying distances Actualtests.com – The Power of Knowing 642-355
D. significant capital cost reduction by substituting iSCSI as a transport technology
E. extends existing FC SAN to IP connected hosts
Correct Answer: ADE Section: (none) Explanation
Explanation/Reference:
QUESTION 92
A customer recently deployed a pair of Cisco MDS 9216i Multilayer Fabric Switches to support a database application. The MDS 9216i expansion slot is still unused. The customer examined other infrastructure services and applications to determine if they should leverage the SAN storage capacity, and decided that it would be beneficial to attach 20 Microsoft Windows file servers to the SAN. Each Windows file server generally drives approximately 5MBps of disk throughput. Which line card should be used to support the Microsoft Exchange server SAN connectivity?
A. 16-port Fibre Channel line card
B. 32-port Fibre Channel line card
C. Multiprotocol Services Module line card
D. None; use the IP storage interfaces.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 93
In addition to providing secure computer room access, what three MDS 9000 features can help enhance physical security? (Choose three.)
A. the placement of all unused FC ports in a VSAN set to “deny”
B. the placement of every host in its own ZoneSet that includes its storage devices
C. the use of the port security feature to bind pWWNs and sWWNs to specific ports
D. the use of DH-CHAP authentication to ensure fabric level security
E. the use of SSH to block access to all unused ports
Correct Answer: ACD Section: (none) Explanation
Explanation/Reference:
QUESTION 94
Which two will allow a fully loaded Cisco MDS 9509 Multilayer Director to meet the 2190-W requirement? (Choose two.)
A. two 110-V power supplies in redundant mode
B. two 220-V power supplies in redundant mode Actualtests.com – The Power of Knowing 642-355
C. two 110-V power supplies that are placed into combined power mode
D. two 110-V power supplies that are placed into active/standby power mode
E. two 110-V power supplies that are placed into primary/backup power mode
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 95
What are three advantages of a collapsed-core architecture? (Choose three.)
A. This design provides the most efficient use of ports because no ports are consumed for ISLs.
B. The absence of ISLs significantly decreases reliability and manageability.
C. The absence of any oversubscription increases switch throughput.
D. Since there are fewer available paths over which traffic may travel, FSPF values are higher.
E. Ports can be scaled easily by adding hot-swappable blades without disrupting traffic.
F. The highest performance is achieved by director-class switches, because the high-speed backplane provides low fixed latency between any two ports.
Correct Answer: AEF Section: (none) Explanation
Explanation/Reference:
QUESTION 96
Exhibit:
Refer to the exhibit. In this scenario, the total bandwidth requirement is 1500 MBps, but there are 100 hosts that each need 15MBps of bandwidth. Which two statements are correct about the topologies shown in the exhibit? (Choose two.)
A. The iSCSI fan-in ratio is 6.25:1. Actualtests.com – The Power of Knowing 642-355
B. The Fibre Channel implementation will require 100 HBA ports.
C. iSCSI is the most cost-effective solution with high fan-in ratios.
D. Fibre Channel is the most cost-effective solution with high fan-in ratios.
E. The Fibre Channel implementation would require two 32-port switching modules in the Cisco MDS switches per fabric.
Correct Answer: AC Section: (none) Explanation
Explanation/Reference:
QUESTION 97
Which design approach provides the greatest protection against failures when designing for high availability?
A. Segment the SAN architecture by the use of VSANs.
B. Use zoning to isolate applications in a consolidated SAN architecture.
C. Use appropriate MDS QoS mechanisms to guarantee that each application receives the necessary bandwidth.
D. Implement redundant fabrics across redundant physical infrastructures.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 98
What are three array characteristics that are crucial when planning a SAN design? (Choose three.)
A. fan-in ratio
B. connection speed
C. embedded cache controller
D. RAID level support
E. active/passive controller
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 99
What are three host characteristics that are crucial when planning a SAN design? (Choose three.)
A. host operating system
B. data replication
C. application I/O throughput
D. type of file system Actualtests.com – The Power of Knowing 642-355
E. CUP and memory resources
F. multipathing
Correct Answer: ACF Section: (none) Explanation
Explanation/Reference:
QUESTION 100
Exhibit:
Refer to the exhibit. A customer is designing a storage network infrastructure that uses the Cisco MDS 9509 Multilayer Director. The network will consist of 40 application servers, four backup servers, two disk arrays, and one tape library. The application servers each have two Fibre Channel host bus adapters and generate 40 to 50 MBps of throughput. The backup servers each have four host bus adapters and generate 130 to 150 MBps of throughput. The disk arrays each have eight 2-Gbps Fibre Channel interfaces that handle 150 to 200 MBps of traffic. The backup servers will be performing incremental backups of snapshot copies of production volumes from multiple application servers concurrently throughout the day. The backup servers will also be performing full backups of snapshot copies of production volumes from the application servers concurrently throughout the week. The customer is redeploying 16 first-generation Linear Tape-Open (LTO) SCSI drives that were previously direct-attached to application and backup servers. The drives will be deployed using Fibre Channel-to-SCSI bridging devices, and each device will have one 2-Gbps Fibre Channel interface and four drives attached. These drives will go into the new library. Which MDS 9509 configuration would best meet the connectivity needs of this customer?
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A. one 16-port Fibre Channel line card and four 32-port Fibre Channel line cards
B. two 16-port Fibre Channel line cards and three 32-port Fibre Channel line cards
C. three 16-port Fibre Channel line cards and three 32-port Fibre Channel line cards
D. four 16-port Fibre Channel line cards and two 32-port Fibre Channel line cards
E. five 16-port Fibre Channel line cards and one 32-port Fibre Channel line card
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 101
Which Fibre Channel SAN topology maximizes performance and expandability?
A. multi-point
B. point-to-point
C. arbitrated loop
D. switched fabric
E. star
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 102
A customer would like to add Cisco MDS switches to an existing Brocade environment with minimal disruption. The Brocade switches are using PID-0 mode. Which two features will enable the creation of a Cisco-Brocade heterogeneous fabric without restricting the feature set of either switch? (Choose two.)
A. interop mode 1
B. interop mode 2
C. interop mode 3
D. IVR
E. PortChannels
F. CWDM
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 103
What are three key benefits of Cisco’s collapsed-core switch configuration? (Choose three.)
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A. ease of management
B. increased port channel utilization
C. reduction in equipment and installation cost
D. higher effective port count
E. reduction in total disk space requirements
Correct Answer: ACD Section: (none) Explanation
Explanation/Reference:
QUESTION 104
A customer SAN design requires the use of existing non-Cisco storage switches in a core edge topology. What must be considered when attaching an MDS 9000 switch as the core device in this network?
A. Trunking is not supported between the core and edge switches.
B. Zoning cannot be used since the domain IDs are in different ranges.
C. FSPF cannot be used between the core and edge switches.
D. If VSANs are implemented in the core, IVR cannot be used.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 105
What provides storage virtualization from IBM?
A. Advanced Services Module (ASM)
B. Caching Services Module (CSM)
C. Storage Services Module (SSM)
D. Cisco MDS 9000 32-port 1/2-Gbps FC Module
E. IP Multiprotocol Services Module
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 106
What are two benefits of the Cisco MDS Series Switches that increase the overall resiliency of SAN extension? (Choose two.)
A. VSANs and IVR can eliminate the potential disruption of a WAN failure.
B. VSANs and IVR can increase resiliency by combining control traffic and data traffic over the WAN.
C. Parallel tunnels and PortChannels eliminate failure of every VSAN or IVR in the local fabric. Actualtests.com – The Power of Knowing 642-355
D. PortChannels and VSANs can be used with FCIP to provide end-to-end redundancy and load balancing.
E. Recovery at the PortChannel level, instead of at the FSPF routing level, provides nondisruptive recovery.
Correct Answer: DE Section: (none) Explanation
Explanation/Reference:
QUESTION 107
Exhibit: Refer to the exhibit. Which three outcomes would a customer realize by performing the migration from a multitier fabric design to a consolidated design? (Choose three.)
A. lower effective port cost
B. high availability because of the multifaceted redundancy that is built into the Cisco MDS switch
C. lower effective port count
D. higher effective port cost
E. higher effective port count
F. lower availability because there are fewer fabric switches for failover
Correct Answer: ABE Section: (none) Explanation
Explanation/Reference:
QUESTION 108
What are two characteristics of iSCSI? (Choose two.)
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A. iSCSI initiators cannot be members of more than one VSAN.
B. The port VSAN of an iSCSI interface cannot be modified.
C. iSCSI cannot benefit from existing IP QoS.
D. By default, dynamically mapped iSCSI initiators are members of VSAN 1.
E. The IPS module creates one or more FC virtual N_Ports for each iSCSI host.
F. By default, all statically mapped iSCSI initiators are members of VSAN 4094.
Correct Answer: DE Section: (none) Explanation
Explanation/Reference:
QUESTION 109
What feature of the MDS 9000 family would be most valuable in establishing a baseline of the traffic load on an existing network prior to making changes?
A. SPAN
B. RSPAN
C. FC-SP
D. Performance Manager
E. AAA
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 110
Exhibit:
Refer to the exhibit. What should be recommended to meet these customer requirements?
A. VSANs
B. wide-area file services (WAFS)
C. storage virtualization
D. Zones
E. Zones and Zone Sets Actualtests.com – The Power of Knowing 642-355
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 111
What provides storage virtualization from IBM?
A. Advanced Services Module (ASM)
B. Caching Services Module (CSM)
C. Storage Services Module (SSM)
D. Cisco MDS 9000 32-port 1/2-Gbps FC Module
E. IP Multiprotocol Services Module
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 112
A large credit card processing firm is adding a second data center to support business continuance. What is the recommended solution for extending the SAN to the second data center if both data centers are active?
A. asynchronous replication using FCIP
B. dual homed servers, and IP connectivity using multiple paths
C. iSCSI installation and a bridge the Ethernet network to the Fibre Channel fabric
D. synchronous replication using DWDM
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 113
A customer wants to consolidate the storage in an existing SAN where Cisco MDS Series Switches are deployed. How can the customer accomplish this goal and still be able to retain full access to the data?
A. dual supervisor modules
B. virtual output queuing (VOQ)
C. stateful failover
D. universal interoperability mode 4
E. per-VSAN FSPF routing
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
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QUESTION 114
A customer has the following application and peak-bandwidth requirements:Four database servers: 50 MBps eachFour exchange servers: 30 MBps each20 midrange development servers: 20 MBps eachWhich dual-fabric designs would best meet the needs of this price-sensitive customer while allowing for future SAN extension capability?
A. two Cisco MDS 9216i Multilayer Fabric Switches, each with an IPS-8 module
B. two Cisco MDS 9216A Multilayer Fabric Switches, each with an SSM module
C. two Cisco MDS 9216i Multilayer Fabric Switches, each with a 16-port FC module
D. two Cisco MDS 9216A Multilayer Fabric Switches, each with a 32-port FC module
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 115
At which point can security on a Fibre Channel SAN be implemented? (Choose three.)
A. storage array
B. server
C. Fibre Channel switch
D. GigE NIC
E. SFP connector
Correct Answer: ABC Section: (none) Explanation
Explanation/Reference:
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