400-007 Exam - Cisco Certified Design Expert (CCDE v3.0) Written Exam

NEW QUESTION 1
Which undesired effect of increasing the jitter compensation buffer is true?

• A. The overall transport jitter decreases and quality improves.
• B. The overall transport jitter increases and quality issues can occur.
• C. The overall transport delay increases and quality issues can occur.
• D. The overall transport delay decreases and quality improves.

Answer: C

NEW QUESTION 2
You are tasked with the design of a high available network. Which two features provide fail closed environments? (Choose two.)

• A. EIGRP
• B. RPVST+
• C. MST
• D. L2MP

Answer: AB

NEW QUESTION 3
Which purpose of a dynamically created tunnel interface on the design of IPv6 multicast services Is
true?

• A. first-hop router registration to the RP
• B. multicast client registration to the RP
• C. multicast source registration to the RP
• D. transport of all IPv6 multicast traffic

Answer: D

NEW QUESTION 4
Which encoding format does cisco ios XE software support for NETCONF?

• A. It supports HTML encoding for NETCONF
• B. It supports YAML encoding for NETCONF
• C. It supports XML encoding for NETCONF
• D. It supports JSON encoding for NETCONF

Answer: C

NEW QUESTION 5
Which two design option are available to dynamically discover the RP in an IPv6 multicast network? (Choose two)

• A. embedded RP
• B. MSDP
• C. BSR
• D. Auto-RP
• E. MLD

Answer: AC

NEW QUESTION 6
Which two data plane hardening techniques are true? (Choose two)

• A. warning banners
• B. redundant AAA servers
• C. Control Plane Policing
• D. SNMPv3
• E. routing protocol authentication

Answer: EF

NEW QUESTION 7
Company XYZ is running OSPF in their network. They have merged with another company that is running EIGRP as the routing protocol. Company XYZ now needs the two domains to talk to each other with redundancy, while maintaining a loop free environment.
The solution must scale when new networks are added into the network in the near future.
Which technology can be used to meet these requirements?

• A. multipoint route-redistribution with route filtering using ACLs
• B. DUMP multipoint route-redistribution with route filtering using route tags
• C. DUMPS single point route-redistribution with route filtering using route tags
• D. DUMPS single point route-redistribution with route filtering using ACLs

Answer: B

NEW QUESTION 8
Which three elements help network designers to construct secure systems that protect information and resources (such as devices, communication, and data) from unauthorized access, modification, inspection, or destruction? (Choose three.)

• A. confidential
• B. serviceability
• C. reliability
• D. availability
• E. integrity
• F. scalability

Answer: ADE

NEW QUESTION 9
Which design principal improves network resiliency?

• A. Added load-balancing
• B. Added redundancy
• C. Added confidentiality
• D. Added reliability

Answer: B

NEW QUESTION 10
A customer asks you to perform a high level review of their upcoming WAN refresh for remote sites.
The review is specially focused on their retail store operations consisting of 500+ locations connected via mutlipoint IPsec VPN solution.
Which routing protocol would be valid but would also be the most restrictive for the expansion of this deployment model?

• A. EIGRP
• B. IS-IS
• C. OSPF
• D. BGP

Answer: B

NEW QUESTION 11
As part of a new network design documentation, you are required to explain the reason for choosing cisco FabricPath for Layer 2 loop avoidance.
Which two elements help Cisco FabricPath mitigate Layer 2 loops if they happen in the Layer 2 MP network? (Choose two)

• A. MAC tunneling
• B. IS-IS multipath
• C. RPF check
• D. TTL header

Answer: CD

NEW QUESTION 12
Company XYZ has 30 sites running a legacy private WAN architecture that connects to the Internet via multiple highspeed connections.
The company is now redesigning their network and must comply with these design requirements:
- Use a private WAN strategy that allows the sites to connect to each other directly and caters for future expansion.
- Use the Internet as the underlay for the private WAN. Securely transfer the corporate data over the private WAN.
Which two technologies should be Incorporated into the design of this network? (Choose two.)

• A. S-VTI
• B. IPsec
• C. DMVPN
• D. GET VPN
• E. PPTP

Answer: BC

NEW QUESTION 13
Retef to the exhibit. This network is running OSPF and EIGRP as the routing protocols. Mutual redistribution of the routing protocols has been contoured on the appropriate ASBRs. The OSPF network must be designed so that flapping routes in EIGRP domains do not affect the SPF runs within OSPF. The design solution must not affect the way EIGRP routes are propagated into the EIGRP domains.
Which technique accomplishes the requirement?

• A. route summarization the ASBR interfaces facing the OSPF domain
• B. route summarization on the appropriate ASBRS.
• C. route summarization on the appropriate ABRS.
• D. route summarization on EIDRP routers connecting toward the ASBR

Answer: B

NEW QUESTION 14
SDWAN networks capitalize the usage of broadband Internet links over traditional MPLS links to offer more cost benefits to enterprise customers. However, due to the insecure nature of the public Internet, it is mandatory to use encryption of traffic between any two SDWAN edge devices installed behind NAT gateways.
Which overlay method can provide optimal transport over unreliable underlay networks that are behind NAT gateways?

• A. TLS
• B. DTLS
• C. IPsec
• D. GRE

Answer: C

NEW QUESTION 15
Two enterprise networks must be connected together. Both networks are using the same private IP addresses.
The client requests from both sides should be translated using hide NAT (dynamic NAT) with the overload feature to save IF addresses from the NAT pools.
Which design addresses this requirement using only one Cisco I OS NAT router for both directions?

• A. This is not possible, because two Cisco IOS NAT routers are required to do dynamic NAT, withoverload in both directions.
• B. The ip nat inside and ip nat outside commands must be configured at the interfaces with theoverload option in both directions.
• C. The overload feature is the default and does not have to be configured.
• D. Two different NAT pools must be used for the ip nat inside source and the ip nat outside sourcecommands for the overload feature in both directions.
• E. The Nat Virtual interface must be used to achieve this requirement.

Answer: D

NEW QUESTION 16
Company XYZ asks for design recommendations for Layer 2 redundancy. The company wants to
prioritize fast convergence and resiliency elements in the design.
Which two technologies are recommended? (Choose two.)

• A. Design MLAG/MC-LAG into the network wherever possible.
• B. Configure DHCP snooping on the switches.
• C. Use root guard.
• D. Use BPDU guard.
• E. Use UniDirectional Link Detection.

Answer: AE

NEW QUESTION 17
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