Question 1

Your data center uses a Virtual Chassis Fabric. The ToR switches have 48 ports and each rack supports 20 servers. Each server has two ports that are configured as a LAG. You need to implement link level redundancy but you cannot use two ports on the same device for this redundancy. Which type of connection should you use to complete this task?

Accepted Answer

C

Question 2

You are designing a Layer 2 fabric implementation for a small data center and have chosen to implement a Virtual Chassis Fabric. You must accommodate two racks of servers with 1 Gbps connectivity, 10 racks of servers with 10 Gbps connectivity, and maintain a single management interface. Which device would satisfy the requirements in this implementation?

Accepted Answer

The QFX5110 is a Layer 2/Layer 3 switch that supports Virtual Chassis Fabric technology. It provides 10/100/1000BASE-T and 10GBASE-X connectivity, and can be managed through a single management interface.

Question 3

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,B

Question 4

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

Accepted Answer

B) A data center that provides hosted services should scale based on customer demands.D) An application may query several resources in response to a single user request.

Question 5

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

The answer of Click the Exhibit button. Referring to the...

Question 6

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

AppSecure is a suite of security features in Junos that includes application identification and control, which can help secure web traffic by identifying and managing application traffic.

Question 7

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

The answer of Click the Exhibit button. You are creating...

Question 8

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

The answer of You are designing an IP fabric using...

Question 9

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

Accepted Answer

The answer of What are two methods used to protect...

Question 10

A customer asks you if they should implement nonstop active routing (NSR) in some cases to replace graceful restart in their data center. In this scenario, which two statements are true? (Choose two.)

Accepted Answer

NSR saves routing protocol information by running the routing protocol process (rpd) on the backup Routing Engine. NSR is self-contained and does not rely on helper routers (or switches) to assist the routing platform in restoring routing protocol information.

Question 11

You plan to deploy a set of SRX Series devices in an active/active chassis cluster with an active/active network infrastructure. Which two statements are true in this scenario? (Choose two.)

Accepted Answer

In an active/active chassis cluster with an active/active network infrastructure, end-host traffic is serviced through both SRX nodes during non-failure conditions. This deployment scenario is recommended when firewall services are used extensively for both east-west and north-south traffic.

Question 12

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

The answer of Click the Exhibit button. You are designing...

Question 13

Clos architectures are based on which network topology?

Accepted Answer

Clos architectures are based on the spine and leaf topology, which is a specific type of network design used to optimize data center performance and scalability.

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

The answer of You need a security management solution for...

Question 15

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

SDN service chaining involves using software to virtually insert and manage network services in the flow of network traffic, allowing for flexible and dynamic network management.

Question 16

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

Accepted Answer

The vSRX is a virtualized version of Juniper's SRX Series Services Gateways, designed to provide security services in virtualized environments.

Question 17

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

The answer of You have included in your data center...

Question 18

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

Accepted Answer

A VXLAN tunnel endpoint (VTEP) requires MAC address learning to forward traffic correctly and IP address learning of interested VTEPs to establish tunnels and communicate with other VTEPs.

Question 19

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

MPLS (Multiprotocol Label Switching) supports sub-50 ms failover through Fast Reroute (FRR), can handle both L2 and L3 VPNs, and supports traffic engineering, making it suitable for the given requirements.

Question 20

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

Accepted Answer

Network functions are increasingly being virtualized to improve flexibility and scalability in data centers. Additionally, there is a growing trend of distributed applications, which are designed to run across multiple systems and locations, enhancing performance and reliability.

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