Question 1

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.

Question 2

You need a security management solution for your data center that will support centralized network visibility and control, J-Flow collection from existing perimeter devices, and SIEM. In this scenario, which two products should you choose for your data center design? (Choose two.)

Accepted Answer

A)  vSRX 
B)  Security Director 
C)  JSA 
D)  Sky ATP

Question 3

Which two statements describe the Contrail vRouter? (Choose two.)

Accepted Answer

A)  It is forwarding plane that runs software on a virtualized server. 
B)  It extends the network form physical routers and switches into an overlay network hosted in virtual server. 
C)  It is responsible for providing the management, control, and analytics functions of the virtualized network. 
D)  It provides the logically centralized control plane and management plane of the system.

Question 4

Click the Exhibit button. Referring to the exhibit, you want the vSRX device to inspect inter-VM traffic. Which two actions must you take to accomplish this task? (Choose two.)

Accepted Answer

A)  You must put the connections between the VMs and the vSRX device in separate VLANs. 
B)  You must put the connections between the VMs and the vSRX device in separate vSwitches. 
C)  You must put the connection between the VMs and the vSRX device in the same VLAN. 
D)  You must put the connection between the VMs and the vSRX device in the same vSwitch.

Question 5

What are two requirements for a VXLAN tunnel endpoint (VTEP)? (Choose two.)

Accepted Answer

A)  TCP session tracking 
B)  MAC address learning 
C)  IGMP filtering 
D)  IP address learning of interested VTEPs

Question 6

You are designing an IP fabric using EVPN with VXLAN and must ensure that all links between the leaf and spine nodes are used as efficiently as possible. Which two design considerations are important to achieve this task? (Choose two.)

Accepted Answer

A)  Load balancing is automatic in an IP fabric design. 
B)  Load balancing must be managed by an SDN controller in an IP fabric design. 
C)  The overlay network needs to support load balancing. 
D)  The underlay network needs to support load balancing.

Question 7

Which two statements describe the Contrail vRouter? (Choose two.)

Accepted Answer

A)  It is forwarding plane that runs software on a virtualized server. 
B)  It extends the network form physical routers and switches into an overlay network hosted in virtual server. 
C)  It is responsible for providing the management, control, and analytics functions of the virtualized network. 
D)  It provides the logically centralized control plane and management plane of the system.

Question 8

Which two statements about data center design are correct? (Choose two.)

Accepted Answer

A)  The most efficient traffic flow pattern is 50% east-west and 50% north-south. 
B)  A data center that provides hosted services should scale based on customer demands. 
C)  A multitier design provides better performance as the number of applications increase. 
D)  An application may query several resources in response to a single user request.

Question 9

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

Question 10

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 11

Clos architectures are based on which network topology?

Accepted Answer

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

Question 12

Which two statements are correct about current data center designs? (Choose two.)

Accepted Answer

A)  Network functions are being virtualized. 
B)  Public IP addresses are easy to obtain but not manage. 
C)  There is a proliferation of distributed applications. 
D)  There is a proliferation of monolithic applications.

Question 13

You are designing a DCI strategy. You must provide a solution that meets the requirements shown below: -sub 50 ms failover to alternate path -supports L2 and L3 VPNs -supports traffic engineered paths Which technology would satisfy the requirements?

Accepted Answer

A)  MPLS 
B)  GRE 
C)  BGP 
D)  IPsec

Question 14

You need a security management solution for your data center that will support centralized network visibility and control, J-Flow collection from existing perimeter devices, and SIEM. In this scenario, which two products should you choose for your data center design? (Choose two.)

Accepted Answer

A)  vSRX 
B)  Security Director 
C)  JSA 
D)  Sky ATP

Question 15

What would you use to balance traffic loads between servers in a Clos Layer 3 data center fabric?

Accepted Answer

A)  MC-LAG 
B)  multicast protocols 
C)  ECMP routing 
D)  BGP export policies

Question 16

Click the Exhibit button. Referring to the exhibit, you want the vSRX device to inspect inter-VM traffic. Which two actions must you take to accomplish this task? (Choose two.)

Accepted Answer

A)  You must put the connections between the VMs and the vSRX device in separate VLANs. 
B)  You must put the connections between the VMs and the vSRX device in separate vSwitches. 
C)  You must put the connection between the VMs and the vSRX device in the same VLAN. 
D)  You must put the connection between the VMs and the vSRX device in the same vSwitch.

Question 17

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 18

You are implementing a new financial application in your data center. You must ensure Web traffic to this server is secure. Which Junos feature would you use to accomplish this task?

Accepted Answer

A)  graceful restart 
B)  antispam 
C)  AppSecure 
D)  Virtual Chassis

Question 19

Which Junos NFV device is used to provide security in virtualized environments?

Accepted Answer

A)  TCX1000 
B)  SSG20 
C)  IC6500 
D)  vSRX

Question 20

Your SAN team must transmit FC between multiple locations in a data center. To keep the cost of the project to a minimum, your management decides that using FCoE would be the most cost-effective approach. In this scenario, which architecture will support FCoE losslessly?

Accepted Answer

A)  Layer 3 Clos 
B)  Virtual Chassis 
C)  Virtual Chassis Fabric 
D)  VXLAN overlay

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

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?

You need a security management solution for your data center that will support centralized network visibility and control, J-Flow collection from existing perimeter devices, and SIEM. In this scenario, which two products should you choose for your data center design? (Choose two.)

Which two statements describe the Contrail vRouter? (Choose two.)

Click the Exhibit button. Referring to the exhibit, you want the vSRX device to inspect inter-VM traffic. Which two actions must you take to accomplish this task? (Choose two.)

What are two requirements for a VXLAN tunnel endpoint (VTEP) ? (Choose two.)

You are designing an IP fabric using EVPN with VXLAN and must ensure that all links between the leaf and spine nodes are used as efficiently as possible. Which two design considerations are important to achieve this task? (Choose two.)

Which two statements describe the Contrail vRouter? (Choose two.)

Which two statements about data center design are correct? (Choose two.)

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.)

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?

Clos architectures are based on which network topology?

Which two statements are correct about current data center designs? (Choose two.)

You are designing a DCI strategy. You must provide a solution that meets the requirements shown below: -sub 50 ms failover to alternate path -supports L2 and L3 VPNs -supports traffic engineered paths Which technology would satisfy the requirements?

You need a security management solution for your data center that will support centralized network visibility and control, J-Flow collection from existing perimeter devices, and SIEM. In this scenario, which two products should you choose for your data center design? (Choose two.)

What would you use to balance traffic loads between servers in a Clos Layer 3 data center fabric?

Click the Exhibit button. Referring to the exhibit, you want the vSRX device to inspect inter-VM traffic. Which two actions must you take to accomplish this task? (Choose two.)

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?

You are implementing a new financial application in your data center. You must ensure Web traffic to this server is secure. Which Junos feature would you use to accomplish this task?

Which Junos NFV device is used to provide security in virtualized environments?

Your SAN team must transmit FC between multiple locations in a data center. To keep the cost of the project to a minimum, your management decides that using FCoE would be the most cost-effective approach. In this scenario, which architecture will support FCoE losslessly?