Designing Cisco Data Center Infrastructure v1.0 (300-160)

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Total 474 questions

Which option must be enabled to allow line-rate forwarding on a Fibre Channel port?

  • A. F port
  • B. TE port
  • C. dedicated mode
  • D. shared mode
  • E. E port


Answer : C

Explanation:

Dedicated Rate Mode -
When port rate mode is configured as dedicated, a port is allocated required fabric bandwidth and related resources to sustain line rate traffic at the maximum operating speed configured for the port. In this mode, ports do not use local buffering and all receive buffers are allocated from a global buffer pool.
Reference:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guides/interfaces/nx-os/cli_interfaces/gen2.html

In a three-tier SAN topology, which network layer should you connect the SAN initiators to?

  • A. storage edge
  • B. core
  • C. host edge
  • D. distribution


Answer : A

Reference:
https://supportforums.cisco.com/t5/data-center-documents/core-edge-and-collapse-core-san-topologies/ta-p/3149001

Which SAN port type should you use on an NPIV core switch that connects to an NPV edge switch?

  • A. FL
  • B. F
  • C. N
  • D. TE
  • E. E


Answer : B

Explanation:


References:
https://www.cisco.com/c/en/us/support/docs/storage-networking/mds-9000-series-multilayer-switches/200127-N-Port-Identifier-Virtualization-NPIV.html https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/5_0/configuration/guides/int/nxos/cli_interfaces/npv.pdf

How is oversubscription between disk arrays and hosts calculated when you use only line-rate capable line cards?

  • A. by dividing the total bandwidth of the disk array ports by the total bandwidth of the Inter-Switch Links
  • B. by dividing the total bandwidth of the host ports by the total bandwidth of the disk array ports
  • C. by dividing the total bandwidth of the host ports by the total bandwidth of the Inter-Switch Links
  • D. by dividing the total bandwidth of the disk array ports by the total bandwidth of the host ports


Answer : B

Explanation:
Oversubscription is a networking term that is generally defined as the overall bandwidth ratio between host and storage array ports

Which type of device can be deployed to add multi-homing capability to an OTV implementation?

  • A. vPC
  • B. IS-IS
  • C. Edge
  • D. Layer 2 gateway


Answer : C

Explanation:

Multi-Homing -
One key function built in the OTV protocol is multi-homing where two (or more) OTV edge devices provide LAN extension services to a given site. As mentioned, this redundant node deployment, combined with the fact that STP BPDUs are not sent across the OTV overlay, may lead to the creation of an end-to-end loop:


Reference:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html

Refer to the exhibit.


Which action does Cisco ITD perform when a node fails?

  • A. evenly distributes traffic across all the remaining nodes
  • B. transparently adds nodes to the waf-dg
  • C. assigns failed node buckets to another active node
  • D. remotes the failed node from the waf-dg


Answer : C

Explanation:
The fail action node least-bucket command assigns the failed node buckets to the active node with the least number of buckets after a node failure. For multiple node failures, this command determines the least-bucketed node and assigns all of the buckets of the failed node to the least-bucketed active node.

You are configuring a switch as a LISP xTR. You plan to use the LISP xTR when deploying redundant map servers.
Which action do you take?

  • A. Register the LISP xTR to the anycast IP address of the map resolver.
  • B. Register the LISP xTR to the IP address of each map server.
  • C. Configure the map-notify group command by using the anycast IP address of the map resolver.
  • D. Configure the map-notify group command by using the IP address of each map server.


Answer : B

Explanation:
Map-Server and Map-Resolver Considerations
The Map-Server and Map-Resolver are critical components in a LISP deployment. They provide capabilities to store and resolve the EID-to-RLOC mapping information for the LISP routers to enable routing between LISP sites.
The Map-Server is a network infrastructure component that learns EID-to-RLOC mapping entries from ETRs, which are authoritative sources and which publish
(register) their EID-to-RLOC mapping relationships with the Map-Server. A Map-Resolver is a network infrastructure component that accepts LISP-encapsulated
Map-Requests, typically from an ITR, and finds the appropriate EID-to-RLOC mapping by checking with a co-located Map-Server (typically) or by consulting the distributed mapping system.
This section discusses Map-Server and Map-Resolver deployment considerations for an enterprise data center LISP deployment. Note that you should deploy redundant standalone coexistent Map-Servers and Map-Resolvers. When redundant standalone Map-Servers and Map-Resolvers are deployed, all xTRs must register with both Map-Servers so that each has a consistent view of the registered LISP EID namespace. For Map-Resolver functions, use of an anycast address is desirable, because it will improve mapping lookup performance by choosing the Map-Resolver that is topologically closest to the requesting ITR.

Which two options can be performed only from the Admin VDCs on the Cisco Nexus 7000 Series platform? (Choose two.)

  • A. Create SPAN ports on other VDCs.
  • B. Access the CLI of other VDCs.
  • C. Configure Cisco FabricPath in other VDCs.
  • D. Create, modify, and delete VDCs.
  • E. Process data plane traffic.


Answer : BD

In order to provide a specific UCS B-Series blade access to a dedicated uplink on a Fabric Interconnect with multiple uplinks connected, which item must to be configured?

  • A. vNIC Placement Policy
  • B. IOM Port Group
  • C. Static Pinning Policy
  • D. LAN Pin Group


Answer : D

You plan to configure OTV multicast. What must you enable to use SSM?

  • A. IGMPv3
  • B. PIM-DM
  • C. IGMPv2
  • D. PIM-SM
  • E. PIM Anycast-RP


Answer : A

Reference:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html

Which two statements accurately describe a Cisco UCS Fabric Interconnect cluster? (Choose two.)

  • A. Only the active Fabric Interconnect forwards data traffic.
  • B. The Fabric Interconnect cluster uses a Cisco UCS B-Series Blade Server chassis to forward data when the L1-L2 links are down.
  • C. The Fabric Interconnect cluster uses a virtual IP address for management connections.
  • D. The Fabric Interconnect uses L1-L2 links to forward data when the primary Fabric Interconnect uplinks are down.
  • E. When the primary Fabric Interconnect node comes up after a failure, the node compares the Cisco UCS system database version to the standby Fabric Interconnect.


Answer : CD

Which statement describes an interconnect link between an FCoE NPV switch and an FCF switch?

  • A. The interconnect must use port type NP on the FCoE switch.
  • B. The interconnect must use port type VNP on the FCoE switch.
  • C. The interconnect must use port type E on the FCoE switch.
  • D. The FCoE switch must create the tunnel interface and bind to the physical interconnect.


Answer : C

You plan to extend the Layer 2 domain by using OTV in multicast mode. What must you consider?

  • A. The same site ID must be used on all of the edge devices on all of the sites.
  • B. The join interface must run IGMPv3.
  • C. The OTV site VLAN must be extended over the overlay.
  • D. The site OTV VLAN must be the same on all of the AED routers on all of the sites.


Answer : D

Reference:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html

Cisco FabricPath is implemented in a data center. You plan to implement anycast HSRP.
What is an advantage of anycast HSRP as compared to HSRPv2?

  • A. Up to four HSRP gateways can forward traffic simultaneously.
  • B. HSRP gateways use BFD for faster failure detection.
  • C. An HSRP group can be secured by using MD5.
  • D. Up to six HSRP gateways can forward traffic simultaneously.


Answer : C

Reference:
http://packetpushers.net/anycast-hsrp-design-considerations/

Which use case requires a design that contains multiple VRF instances in a VDC?

  • A. Provide VRF-aware services to all Layer 3 interfaces.
  • B. Provide a route policy for incoming packets.
  • C. Provide routing updates between Layer 3 interfaces.
  • D. Provide Layer 3 isolation within a VDC.


Answer : B

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Total 474 questions