300-610 Exam Preparation Material | Designing Cisco Data Center Infrastructure (DCID)

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Prepare for the 300-610 Designing Cisco Data Center Infrastructure (DCID) exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

Refer to the exhibit.

A company has three data centers based on different network technologies.
The company must provide Layer 2 and Layer 3 connectivity among the sites with these requirements:
- VLAN 172 must be extended as shown.
- Client A must be able to access the database server.
- Client B must be able to communicate with Client A.
Which solution meets the requirements?
A. Back-to-back vPC
B. VXLAN EVPN
C. Dark fibre
D. OTV

A. D

Explanation:
Overlay Transport Virtualization is the appropriate DCI technology for this mixed three-site environment. Cisco OTV is a MAC-in-IP overlay designed specifically to extend selected Layer 2 broadcast domains across an IP transport. It requires IP reachability between OTV edge devices but does not require the internal switching technology to be identical at every site. That property is central here because the exhibit combines different campus and data-center designs, including vPC, VSS, and a Fabric Path-style domain. Extending VLAN 172 through OTV preserves Layer 2 adjacency between Client A and the database server, while each site can retain its existing internal control plane. Inter-subnet communication from Client B in VLAN 192 to Client A in VLAN 172 continues through the local and DCI Layer 3 routing design; OTV supplies the required extension for the shared VLAN rather than replacing routing. A back-to-back vPC is a local multichass is port-channel construct and is unsuitable as a three-site DCI architecture. Dark fibre is only physical transport; by itself it supplies neither a scalable overlay control plane nor selective VLAN extension. VXLAN EVPN can provide modern Layer 2 and Layer 3 overlays, but deploying it end to end would require compatible VTEP and EVPN integration across the disparate legacy domains shown. OTV is built to bridge those heterogeneous sites over their existing routed connectivity. Cisco OTV data-center interconnect design guide

Question#2

A cloud service provider provisioned four active/active data centers in various locations within the country at 50 miles between each data center. The data centers must provide redundant network infrastructure and always be available to customers.
Which two data center design steps must be used to meet these requirements? (Choose two.)

A. Provide application hosting services to customers from the closest data center.

B. Implement active cluster in data centers 1 and 2 and backup in 3 and 4.

C. Use asynchronous replication between data centers 1 and 2.

D. Deploy database services in data center 1 and application layer to other data centers.

E. Configure application data replication to all backup data centers.

Question#3

An engineer requires a solution that achieves Ethernet traffic forwarding on all available paths from the hosts to the Cisco Nexus Fabric Extender and from the Fabric Extenders to the Cisco Nexus 5000 Series Switches. The NIC teaming from the Fabric Extender to a server should use an LACP EtherChannel.
Which solution should be implemented to meet these requirements?

A. Virtual Port Channel

B. Enhanced Virtual Port Channel

C. Virtual Port Channel Plus (vPC+)

D. Back-to-Back Virtual Port Channel

Question#4

A large financial institution hosts all customer data in a critical data center with a single physical location. Top management is concemed about the risk of a single-se failure. but budget is also an issue, so the network engineering team is working to implement a cost-effective redundancy strategy with a second data center. The new data center must use a three-tier design identical to the existing data center. Business requirements dictate that all data must always be accessible from anywhere in the world, even a single site fails. The team purchased two Cisco Nexus 7700 Series Switches and four Catalyst 8000 Series Routers.
Which action must the team take to accomplish the goal?

A. Implement FabricPath on the Catalyst 8000 routers in both data centers to provide full redundancy in the event of a disaster

B. Implement HSRP with the Nexus 7700 Series devices to provide gateway redundancy to ensure seamless failover between the Nexus switches

C. Implement OTy with the Nexus 7700 Series devices to extend Layer 2 connectivity between the two data centers and provide disaster-recovery capabilities

D. Implement NVGRE on the Catalyst 8000 routers to create a DCI communication channel between the data centers and provide Layer 2 extension capabilities

Question#5

An engineer is implementing management access to a Cisco Nexus platform. The customer requires a solution that provides isolation between the data and control planes. In addition to management that uses encryption and authentication. The customer will manage the device using both IPv4 and IPv6.
Which two components should be used to meet these requirements? (Choose two)

A. SVI interface

B. SSM protocol

C. SNMP

D. Telnet protocol

E. mgmt0 interface

Explanation:
We are talking about management only, so SSM is out. Since we need to separate between data and control plane, we should use mgmt0 interface, so SVI interface is out. Since we need to use encryption and authentication, this can be done in SNMPv3, while telnet does not support encryption, so telnet is out.

Exam Code: 300-610
Q & A: 301 Q&As Updated: Oct 26,2026

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What This 300-610 Study Resource Helps You Do

Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current 300-610 exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

How to Use This 300-610 Preparation Material

Review the Exam Scope

Start by reviewing the topics covered by the 300-610 exam. Compare them with the official exam objectives to understand the required technologies, operational tasks, and practical skills, then identify the areas that deserve the most attention.

Practice Independently

Complete a focused set of practice questions for each topic. On your first attempt, avoid referring to notes, answers, or other study resources so that you can evaluate your current understanding more accurately.

Study the Explanations

Review the answers and explanations after completing each practice session. Understand why the correct option is appropriate for the given scenario and why the other options may be incorrect or less suitable.

Close Knowledge Gaps

Keep track of incorrect answers, unfamiliar concepts, and weaker knowledge areas. Review these topics using official documentation and practical experience, then answer the related questions again to reinforce your understanding and monitor your progress.

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Exam Code: 300-610
Q & A: 301 Q&As
Updated: Oct 26,2026

Access Complete 300-610 Preparation Material