CCNP Data Center 300-610 [DCID] Cisco Certified Specialist. Q&A and more

Pearson Education (InformIT)

Designing Cisco Data Center Infrastructure (DCID)

The Designing Cisco Data Center Infrastructure v1.0 (DCID 300-610) exam is a 90-minute exam associated with the CCNP Data Center and Cisco Certified Specialist – Data Center Design certifications. This exam certifies a candidate’s knowledge of data center infrastructure design including network, compute, storage network, and automation. The course, Designing Cisco Data Center Infrastructure, helps candidates prepare for this exam.

This exam tests your knowledge of data center infrastructure design, including:

  • Network
  • Compute
  • Storage network
  • Automation

You can expect to learn following things from 300-610 exam

  • Choose the appropriate components and design a scalable, reliable, and intelligent data center
  • Design data center network connectivity, including Layer 2 switching and Layer 3 forwarding.
  • Design vPC, VXLAN, and OTV in customer scenarios.
  • Describe management options in the LAN.
  • Describe hardware virtualization and FEX technologies, including data center infrastructure management and automation options.
  • Design a data center storage network, including RAID options, Hyperconvergence, Fibre Channel and FCoE
  • Describe the Cisco UCS C-Series and B-Series servers and distinguish among system-integrated stack solutions and management options for Cisco UCS domains.
  • Design AAA, RBAC and resource parameters for a Cisco UCS domain, including resource pools and policies
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Q&A

Question 1

Which statement about the vPC peer-keepalive link between two switches is true?

  • It cannot be used over an OOB network.
  • It needs to be a direct point-to-point link.
  • It must be operational before the vPC peer link can come online.
  • The vPC peer link and vPC peer-keepalive link can both carry synchronization traffic.

Answer

The correct answer is: “It must be operational before the vPC peer link can come online.” The peer-keepalive link must be operational before the vPC peer link can come online.

Question 2

Which two options are key benefits of vPC over old STP-based topology? (Choose two.)

  • no blocked uplinks
  • lower oversubscription
  • VLAN-based load balancing
  • loop resolution relies on STP
  • multiple vPC domains per device

Answer

The correct answers are: “no blocked uplinks” and “lower oversubscription.” Downstream switches use vPC to create a port-channel with upstream switches, so the uplinks are not blocked. Also, because STP does not block uplinks, vPC creates lower oversubscription.

Question 3

How many vPC domains can be configured on each device?

  • two domains
  • one domain
  • multiple domains for different vPC pairs
  • multiple domains for the same vPC pair

Answer

The correct answer is: “one domain.” You can have only one vPC domain ID configured on each device.

Question 4

Which statement is correct and crucial when considering vPC deployments?

  • You can pair a Cisco Nexus 5000 Series Switch with a Cisco Nexus 7000 Series Switch within the same vPC domain.
  • The vPC peer link can temporarily include a 1-Gigabit Ethernet port.
  • vPC peer links must consist of at least 10-Gigabit Ethernet ports.
  • You can use vPC to transport hardware-based keepalive frames.

Answer

The correct answer is: “vPC peer links must consist of at least 10-Gigabit Ethernet ports.” 

Question 5

You decide to use vPC in your customer environment. Which option is an advantage of this feature?

  • From a logical perspective, vPC creates a more complex network design.
  • vPC scales the available Layer 2 bandwidth.
  • vPC scales the available Layer 3 bandwidth.
  • vPC maintains bisectional bandwidth.

Answer

The correct answer is: “vPC scales the available Layer 2 bandwidth. “

Question 6

Which protocol is used by vPC peers to synchronize control plane information?

  • MEC
  • Cisco Fabric Services over Ethernet
  • Cisco FabricPath
  • Cisco Fabric Services over IP

Answer

The correct answer is: “Cisco Fabric Services over Ethernet” Cisco Fabric Services over Ethernet is the primary control plane protocol over the vPC peer link.

Question 7

You have decided to use vPC to manage redundant links. Which two features can you use to form an EtherChannel? (Choose two.)

  • static
  • PAgP
  • PAgP+
  • LACP
  • trunk

Answer

The correct answers are: “static” and “LACP” The only two supported options to create vPC are static and LACP.

Question 8

Which statement about vPC and STP is true?

  • The vPC primary switch is responsible for generating and processing BPDUs and uses its own bridge ID for the BPDUs. The vPC secondary switch relays BPDU messages but does not generate BPDUs for the vPCs.
  • The vPC secondary switch is responsible for generating and processing BPDUs and uses its own bridge ID for the BPDUs. The vPC primary switch relays BPDU messages but does not generate BPDUs for the vPCs.
  • The vPC switches do not generate or process BPDUs.
  • Both the vPC primary switch and the vPC secondary switch are responsible for generating and processing BPDUs.
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Question 9

Which two statements about using vPC+ and HSRP are true? (Choose two.)

  • vPC+ makes active and standby HSRP devices active.
  • With vPC+, one HSRP device is active and another device acts as the standby.
  • vPC+ makes active and standby HSRP devices standby.
  • Traffic that is destined to the HSRP MAC address can leverage ECMP.
  • Traffic that is destined to the HSRP MAC address cannot leverage ECMP.

Question 10

You have decided to use UDLD on a Cisco switch to prevent failures on unidirectional links. When you enable autonegotiation and UDLD on a port, at which OSI layer will detection functions work to prevent failures?

  • Layer 1
  • Layer 2
  • Layer 3
  • Layer 1 and Layer 2
  • Layer 1 and Layer 3

Question 11

When using Cisco FabricPath, which technology requires you to use a subswitch ID?

  • OSPF
  • MSTP
  • vPC
  • EIGRP
  • GRE

Question 12

What is the default UDLD port configuration on a Cisco Nexus switch?

  • enabled UDLD aggressive mode
  • disabled on Ethernet fiber-optic LAN ports
  • disabled on Ethernet 1-Gbps ports
  • enabled on both copper and fiber-optic LAN ports

Question 13

You are hired to design a high-availability solution in your customer’s infrastructure. Which two options can you use as Layer 2 protocols for high availability on Cisco Nexus switches? (Choose two.)

  • legacy STP
  • MSTP
  • VRRP
  • Rapid PVST+
  • HSRP

Question 14

What is the maximum number of vPC peers that you can you have in a vPC domain?

  • two
  • three
  • four
  • eight
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Question 15

What happens when you have UDLD aggressive mode configured and you lose connection with a neighbor?

  • UDLD in aggressive mode tries to re-establish the connection with the affected neighbor. After four unsuccessful retries, UDLD disables the port.
  • UDLD in aggressive mode tries to re-establish the connection with the affected neighbor. After 10 unsuccessful retries, UDLD disables the port.
  • UDLD in aggressive mode tries to re-establish the connection with the affected neighbor. After eight unsuccessful retries, UDLD disables the port.
  • UDLD in aggressive mode tries to re-establish the connection with the affected neighbor. After six unsuccessful retries, UDLD disables the port.

Question 16

Which statement about the vPC peer-keepalive link is true?

  • The peer-keepalive link is a Layer 3 link that often runs over an OOB network.
  • The peer-keepalive link is a Layer 2 link that often runs over an OOB network.
  • Synchronization traffic is sent over the vPC peer keepalive link.
  • The peer-keepalive link is used to synchronize MAC address tables, ARP caches, and IGMP tables that are built via IGMP snooping.

Question 17

Which two statements about using vPC for fabric virtualization are true? (Choose two.)

  • Two switches with vPC represent one logical switch from a control point of view.
  • Two switches with vPC keep the control plane separate.
  • Load balancing is performed via hash-based EtherChannel.
  • Load balancing is performed via VLANs.
  • Protocol failure can cause a full network outage.

Answer

The correct answers are: “Two switches with vPC keep the control plane separate.” and “Load balancing is performed via hash-based EtherChannel.” The switches remain as two separately managed switches with an independent management and control plane. Traffic is balanced across the fabric uplinks based on EtherChannel load balancing.

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