Question 1

Click the Exhibit button. Referring to the exhibit, what must you change to make the topology a supported Virtual Chassis Fabric design?

Accepted Answer

A)   Change the Routing Engine to a line card.
B)   Remove one leaf node.
C)   Add a second spine node.
D)   Change one of the line cards to a VCP master instance. C

Question 2

Which two security components are inherent in a Contrail vRouter? (Choose two.)

Accepted Answer

A)   basic tenant separation directional control for Layer 3 and Layer 4 traffic
B)   Layer 7 traffic filters
C)   security groups
D)   encapsulation around each VM residing on the compute node B,C

Question 3

A large multinational corporation wants to implement SDN for rapid deployment of application environments. You are asked to define SDN service chaining for a presentation to execute management. In this scenario, which statement would satisfy the requirement?

Accepted Answer

A)   Integrated software is used to insert a software widget into the flow of network traffic.
B)   Stacked hardware is used to insert a software widget into the flow of network traffic.
C)   Software is used to virtually insert services into the flow of network traffic.
D)   Hardware is used to virtually insert services into the flow of network traffic. C

Question 4

Which statement is true about highly available data center architectures?

Accepted Answer

A)   All data center devices require the same level of uptime.
B)   They require the use of a services block for non switching/routing devices.
C)   They are never segmented into zones or PoDs.
D)   During a failure, a data center should gracefully degrade.

Question 5

Click the Exhibit button. Traffic congestion is noticed when sending traffic from S1 to S2. You must design a CoS deployment to address the traffic congestion issue. Referring to the exhibit, which two statements are true? (Choose two.)

Accepted Answer

A)   You should use BA classifiers on R1.
B)   You should use multifield classifiers on R2, R3, and R4.
C)   You should use multifield classifiers on R1.
D)   You should use BA classifiers on R2, R3, and R4.

Question 6

Click the Exhibit button. You are designing a Layer 2 Ethernet fabric. Your customer wants to know which protocol in your design will ensure a loop-free topology. Referring to the exhibit, which protocol meets this requirement?

Accepted Answer

A)   STP
B)   VCCP
C)   BGP
D)   EVPN

Question 7

You are designing a Junos-based Ethernet Fabric for a data center that has a combination of 60 EX Series and QFX Series devices. In this scenario, which solution would you choose?

Accepted Answer

A)   Junos Fusion Provider Edge
B)   Virtual Chassis
C)   Junos Fusion Data Center
D)   Virtual Chassis Fabric

Question 8

Click the Exhibit button. You are creating a resilient IP fabric for a data center based on a Clos architecture. Referring to the exhibit, which statement is true?

Accepted Answer

A)   A physical link must be added between spine 2 and spine 3 and between spine 1 and spine 4.
B)   Additional physical links between spine 1 and spine 2 and between spine 3 and spine 4 must be added for resiliency.
C)   No physical links need to be added or removed.
D)   The physical links between spine 1 and spine 2 and between spine 3 and spine 4 must be removed.

Question 9

Clos architectures are based on which network topology?

Accepted Answer

A)   ring
B)   VLANs
C)   hybrid
D)   spine and leaf

Question 10

What is a characteristic of VRRP?

Accepted Answer

A)   VRRP routers must communicate over a direct connection.
B)   VRRP participating routers all act as active gateways.
C)   VRRP provides high availability for a host's default gateway.
D)   VRRP routes must communicate over a common switch.

Question 11

Which two security components are inherent in a Contrail vRouter? (Choose two.)

Accepted Answer

A)   basic tenant separation directional control for Layer 3 and Layer 4 traffic
B)   Layer 7 traffic filters
C)   security groups
D)   encapsulation around each VM residing on the compute node

Question 12

Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as their SDN controller. Which statement is true in this scenario?

Accepted Answer

A)   All bare-metal servers must run a vSRX instance for overlay tunneling.
B)   All virtualized servers must run a vSRX instance for overlay tunneling
C)   All bare-metal serer must run a vRouter for overlay tunneling
D)   All virtualized servers must run a vRouter for overlay tunneling

Question 13

Which two characteristics describe the deployment of high-density chassis switches in a data center? (Choose two.)

Accepted Answer

A)   In EoR deployments, the switches are consolidated in one location.
B)   The switches consume a great deal of power, cooling, and space.
C)   In ToR deployments, the switches provide more port connections, but with lower speeds.
D)   More switches are often needed to accommodate the number of server connections.

Question 14

What are two methods used to protect the data center perimeter? (Choose two.)

Accepted Answer

A)   session authentication
B)   DDoS protection
C)   asset classification
D)   network subnetting

Question 15

Which two statements are true about IP fabrics? (Choose two.)

Accepted Answer

A)   IP-based applications do not require an overlay network to maintain connectivity.
B)   Applications that require security needs an overlay to provide the security.
C)   Applications that require Layer 2 adjacencies require an overlay network to maintain connectivity.
D)   IP fabrics can natively support both Layer 2 and Layer 3 applications.

Question 16

You are designing an IP fabric using EBGP. In this scenario, what are two ways of designing the ASN scheme for the IP fabric? (Choose two.)

Accepted Answer

A)   Assign the same ASN to all devices.
B)   Assign the ASN to all leaf devices and a separate ASN to all spine devices.
C)   Assign a unique ASN to each individual device.
D)   Assign the same ASN used by the WAN service provider to the spine devices.

Question 17

You are designing a Control-based SDN overlay network. IP filtering and tenant separation for Layer 3 and Layer 4 traffic is required for this installation. In this scenario, which Contrail component performs this function?

Accepted Answer

A)   vSwitch
B)   control node
C)   vRouter
D)   compute node

Question 18

Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as its SDN controller. Which two statements are true in this scenario? (Choose two.)

Accepted Answer

A)   Underlay tunnels are established between virtualized and bare-metal servers.
B)   MPLS over UDP tunnels are supported.
C)   Overlay tunnels are established between virtualized and bare-metal servers.
D)   MPLS over GRE tunnels are supported.

Question 19

You have included in your data center design an SRX1500 chassis cluster. The RFP requires a documented upgrade process for the cluster that minimizes downtime. What satisfies this requirement in this scenario?

Accepted Answer

A)   an in-service software upgrade
B)   a topology-independent in-service software upgrade
C)   a manual device upgrade
D)   a nonstop software upgrade

Question 20

You are re-designing a traditional multitiered data center into a modern spine-and-leaf data center architecture. In this scenario, which two tiers are collapsed? (Choose two.)

Accepted Answer

A)   distribution
B)   WAN
C)   access
D)   core

Exam 2: Data Center Design, Specialist (JNCDS-DC)

Click the Exhibit button. Referring to the exhibit, what must you change to make the topology a supported Virtual Chassis Fabric design?

Which two security components are inherent in a Contrail vRouter? (Choose two.)

A large multinational corporation wants to implement SDN for rapid deployment of application environments. You are asked to define SDN service chaining for a presentation to execute management. In this scenario, which statement would satisfy the requirement?

Which statement is true about highly available data center architectures?

Click the Exhibit button. Traffic congestion is noticed when sending traffic from S1 to S2. You must design a CoS deployment to address the traffic congestion issue. Referring to the exhibit, which two statements are true? (Choose two.)

Click the Exhibit button. You are designing a Layer 2 Ethernet fabric. Your customer wants to know which protocol in your design will ensure a loop-free topology. Referring to the exhibit, which protocol meets this requirement?

You are designing a Junos-based Ethernet Fabric for a data center that has a combination of 60 EX Series and QFX Series devices. In this scenario, which solution would you choose?

Click the Exhibit button. You are creating a resilient IP fabric for a data center based on a Clos architecture. Referring to the exhibit, which statement is true?

Clos architectures are based on which network topology?

What is a characteristic of VRRP?

Which two security components are inherent in a Contrail vRouter? (Choose two.)

Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as their SDN controller. Which statement is true in this scenario?

Which two characteristics describe the deployment of high-density chassis switches in a data center? (Choose two.)

What are two methods used to protect the data center perimeter? (Choose two.)

Which two statements are true about IP fabrics? (Choose two.)

You are designing an IP fabric using EBGP. In this scenario, what are two ways of designing the ASN scheme for the IP fabric? (Choose two.)

You are designing a Control-based SDN overlay network. IP filtering and tenant separation for Layer 3 and Layer 4 traffic is required for this installation. In this scenario, which Contrail component performs this function?

Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as its SDN controller. Which two statements are true in this scenario? (Choose two.)

You have included in your data center design an SRX1500 chassis cluster. The RFP requires a documented upgrade process for the cluster that minimizes downtime. What satisfies this requirement in this scenario?

You are re-designing a traditional multitiered data center into a modern spine-and-leaf data center architecture. In this scenario, which two tiers are collapsed? (Choose two.)