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QUESTION 116
A customer is designing a SAN for each of two data centers. The two data centers are connected by dark fiber, which is owned by the customer. Cisco ONS platforms terminate the fiber and provide service aggregation. The customer requirements include that the SAN in each data center meet or exceed five nines of availability and be interconnected using 16 separate lambdas. The customer has four storage devices in each data center, and each storage device has four Fibre Channel interfaces. Each data center has 32 servers, and each server has two host bus adapters. The majority of the servers require only 20 to 30MBps of throughput on average, but four of the servers require 150 MBps of throughput on average. What will provide the most cost-effective design to satisfy these requirements?
A. two Cisco MDS 9216 Fabric Switches in each data center, each MDS 9216 with Actualtests.com – The Power of Knowing 642-355 an additional 16-port Fibre Channel line card
B. two Cisco MDS 9216 Fabric Switches in each data center, each MDS 9216 with an additional 32-port Fibre Channel line card
C. two Cisco MDS 9506 Multilayer Directors with one in each data center, each MDS 9506 with two 16-port Fibre Channel line cards and two 32-port Fibre Channel line cards
D. two Cisco MDS 9509 Multilayer Directors with one in each data center, each MDS 9509 with two 16-port Fibre Channel line cards and three 32-port Fibre Channel line cards
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 117
DRAG DROP
You work as network consultant. Your customer Certkiller .com requires your services. Specifically you are
required to drag Certkiller ‘s business consideration next to the MDS feature that will solve that issue. Note:
You might not have to use all available options.
Actualtests.com – The Power of Knowing 642-355
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference: QUESTION 118
What would be a good initial SAN-migration project for a small or medium-sized business that possesses ample WAN bandwidth, but that has an immediate need to reduce spending and to maximize resources?
A. Reduce the WAN bandwidth.
B. Implement FCIP to consolidate all remote SANs.
C. Implement backup consolidation.
D. Centralize the data center and implement an iSCSI solution.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 119
Exhibit:
Actualtests.com – The Power of Knowing 642-355 Refer to the exhibit. A customer is designing a SAN for each of two data centers. The two data centers are connected by dark fiber, which is owned by the customer. Cisco ONS platforms terminate the fiber and provide service aggregation. The customer requirements include that the SAN in each data center meet or exceed five nines of availability and be interconnected using 16 separate lambdas. Links between data centers must be able to tolerate failure of any component. The customer has eight storage devices in each data center, and each storage device has eight Fibre Channel interfaces. Each data center has 120 servers, and each server has two host bus adapters. The servers generally require only 10 to 20MBps of throughput. The customer also requires that the solution be efficient on its use of ports, and provide room to grow by at least 10 percent to accommodate server growth over the next year. What is the most cost-effective design to satisfy these requirements?
A. two Cisco MDS 9509 Multilayer Directors in each data center, each MDS 9509 with two 16-port Fibre Channel line cards and five 32-port Fibre Channel line cards
B. two Cisco MDS 9509 Multilayer Directors in each data center, each MDS 9509 with seven 16-port Fibre Channel line cards
C. two Cisco MDS 9509 Multilayer Directors in each data center, each MDS 9509 with one 16-port Fibre Channel line card and six 32-port Fibre Channel line cards
D. two Cisco MDS 9509 Multilayer Directors in each data center, each MDS 9509 with seven 32-port Fibre Channel line cards
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 120
A customer has 80% of the total storage space directly connected to servers. The storage space needs are growing at 50% per year. Given these facts, which solution is recommended?
Actualtests.com – The Power of Knowing 642-355
A. increase in server capacity
B. server consolidation
C. storage consolidation
D. storage expansion
E. SAN consolidation
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 121
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 122
DRAG DROP Your Certkiller .com trainee Sandra asks you to match the applications with its most appropriate corresponding N-tier layer. You must comply.
Actualtests.com – The Power of Knowing 642-355
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
QUESTION 123
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 124
Which SFP and media-type combination would be recommended for a high-speed 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 125
Exhibit:
Actualtests.com – The Power of Knowing
642-355
Refer to the exhibit. What port type should be used between the two switches to maximize performance?
A. B
B. E
C. F
D. NL
E. TE
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 126
An administrator is concerned about security and wants to have host bus adapters authenticate against an authoritative server upon fabric login. The administrator configures the fabric and hosts accordingly but needs to configure an authoritative server. Which two authentication servers can the MDS be configured to use?(Choose two.)
A. Microsoft Active Directory
B. LDAP
C. RADIUS
D. TACACS+
E. NIS Actualtests.com – The Power of Knowing 642-355
Correct Answer: CD Section: (none) Explanation Explanation/Reference:
QUESTION 127
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 128
Which statement is true about LUN zoning in a heterogeneous environment?
A. Hardware-enforced LUN zoning helps to ensure that LUNs are accessible by all hosts.
B. Use LUN zoning instead of LUN masking to centralize management in mixed storage environments.
C. LUN zoning requires no special configuration on storage arrays.
D. LUN masking should be used in all situations.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 129
What are two reasons that remote backup (remote vaulting) is a core application of FCIP? (Choose two.)
A. FCIP is relatively inexpensive when compared with optical storage networking.
B. Enterprises and storage service providers (SSPs) can provide remote-vaulting services by using existing FCIP WAN infrastructures.
C. FCIP is very reliable because it always uses host-based synchronous replication.
D. FCIP is very reliable because it always uses disk-based asynchronous replication.
E. Applications are often sensitive to high latency, but in a properly designed FCIP backup implementation, the application can be protected from problems with the backup process by using techniques such as snapshots and split mirrors. Actualtests.com – The Power of Knowing 642-355
Correct Answer: AE Section: (none) Explanation
Explanation/Reference:
QUESTION 130
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 131
Which Cisco MDS feature alleviates a head-of-line blocking condition when occasional bursts of traffic exceed the capacity of an end device to receive data?
A. virtual output queues
B. VSAN allowed list
C. VSANs
D. quality of service
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 132
What are three key benefits of Cisco’s collapsed-core switch configuration? (Choose three.)
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 133
Actualtests.com – The Power of Knowing 642-355
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
E. CUP and memory resources
F. multipathing
Correct Answer: ACF Section: (none) Explanation
Explanation/Reference:
QUESTION 134
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 135
In the design of an iSCSI implementation in conjunction with a Cisco MDS-based SAN, which technology provides for diverse connections into multiple SAN switches and is used to provide automatic failover using a single target IP address?
A. multipathing
B. EtherChannel
C. VRRP
D. OSPF
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 136
Actualtests.com – The Power of Knowing 642-355
What effect does VSAN technology have on typical capacity planning for a storage network?
A. Because of the complete isolation of VSANs, more ports are required in a VSAN environment than in a non-VSAN environment.
B. When capacity planning where VSANs will be implemented, each VSAN must be capacity planned independently of all other VSANs.
C. VSANs are over provisioned separately to provide for capacity growth.
D. Unused ports can easily be redeployed for other applications in other VSANs.
Correct Answer: D Section: (none) Explanation Explanation/Reference:
QUESTION 137
A customer has 80% of the total storage space directly connected to servers. The storage space needs are growing at 50% per year. Given these facts, which solution is recommended?
A. increase in server capacity
B. server consolidation
C. storage consolidation
D. storage expansion
E. SAN consolidation
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 138
Exhibit:
Actualtests.com – The Power of Knowing 642-355
Refer to the exhibit. What topology allows the customer network, made up of several SAN islands, to be integrated into a single SAN topology, and still retain its existing functionality?
A. Core-Edge Topology
B. VSAN with Collapsed-Core Topology
C. VSAN with Core-Edge Topology
D. Single Large SAN Fabric
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 139
Exhibit:
Refer to the exhibit. A customer has deployed two Cisco MDS 9509 Multilayer Directors. One MDS 9509 is deployed in each of two separate data centers. The primary data center is always active, and the secondary data center is considered a standby site. The data centers are connected together by an unreliable Gigabit Ethernet connection that is shared by many departments. A replication application is using Fibre Channel over IP (FCIP) as its transport mechanism over the Gigabit Ethernet circuit. The administrator is concerned about network stability in the production fabric and the impact of a Gigabit Ethernet circuit outage on the production fabric. The administrator is deploying Inter-VSAN Routing to isolate the production fabric from the standby data center fabric, and only has one license. Where should the administrator install and configure Inter-VSAN Routing?
A. Switch A
B. Switch B
C. The administrator should not install and configure Inter-VSAN Routing.
D. Switch A and Switch B
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 140
A customer has a need to synchronously replicate data from the primary data center to a standby data center that is 30 kilometers away. The customer owns the
Actualtests.com – The Power of Knowing 642-355
fiber between the two data centers and uses the link for Gigabit Ethernet connectivity today. The Gigabit Ethernet connection is heavily utilized and generally remains at 90-percent utilization. The customer expects that the replication traffic will require approximately 30 MBps, and is looking for a low-cost solution. Which replication solution would you recommend?
A. FCIP
B. CWDM
C. DWDM
D. iSCSI
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 141
Which statement best defines storage consolidation?
A. making an enterprise’s total disk space highly available to the entire enterprise, often by placing it in a SAN
B. making an enterprise’s disk space, servers, and tape libraries highly available to the entire enterprise, often by placing them in a SAN
C. making an enterprise’s total storage networking less costly by using iSCSI
D. making an enterprise’s total disk space highly available by transferring copies of an enterprise’s total storage space to an offsite location
E. making an enterprise’s total disk space highly available by connecting all of an enterprise’s storage devices to one (or two) large servers
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 142
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 143
Actualtests.com – The Power of Knowing 642-355
Select three common attributes of Gigabit Ethernet compared to Fibre Channel as a storage transport service. (Choose three.)
A. high bandwidth
B. low bandwidth
C. high latency
D. low latency
E. long distance
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 144
What are three value-added features in the Cisco MDS 9000 Series of multiprotocol directors? (Choose three.)
A. FSPF
B. FCC
C. link aggregation
D. buffer-to-buffer credits
E. QoS
F. IPFC
Correct Answer: BCE Section: (none) Explanation
Explanation/Reference:
QUESTION 145
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:
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