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Cisco Updated 400-007 Exam Questions and Answers by aydan

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Cisco 400-007 Exam Overview :

Exam Name: Cisco Certified Design Expert (CCDE v3.1)
Exam Code: 400-007 Dumps
Vendor: Cisco Certification: CCDE v3.0
Questions: 396 Q&A's Shared By: aydan
Question 16

A service provider hires you to design its new managed CE offering to meet these requirements

• The CEs cannot run a routing protocol with the PE

• Provide the ability for equal or unequal ingress load balancing in dual-homed CE scenarios.

• Provide support for IPv6 customer routes

• Scale up to 250.000 CE devices per customer.

• Provide low operational management to scale customer growth.

• Utilize low-end (inexpensive) routing platforms for CE functionality.

Which tunneling technology do you recommend?

Options:

A.

FlexVPN

B.

point-to-point GRE

C.

DMVPN

D.

LISP

Discussion
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Question 17

You are a network designer and you must ensure that the network you design is secure. How do you plan to prevent infected devices on your network from sourcing random DDoS attacks using forged source address?

Options:

A.

ACL based forwarding

B.

unicast RPF loose mode

C.

unicast RPF strict mode

D.

ACL filtering by destination

Discussion
Question 18

Refer to the exhibit.

Questions 18

This network is running legacy STP 802.1 d. Assuming "hello_timer" is fixed to 2 seconds, which parameters can be modified to speed up convergence times after single link/node failure?

Options:

A.

The transit_delay=5 and dpdu_delay=20 are recommended values, considering helto_timer=2 and specified

B.

Only the maximum_transmission_halt_delay and diameter parameters are configurable parameters in 802. to speed up STP convergence process C. The max_age and forward delay parameters can be adjusted to speed up STP convergence process.

C.

Only the transit_delay and bpdu_delay timers are configurable parameters in 802.1d to speed up STP convergence process.

Discussion
Question 19

Which design benefit of bridge assurance is true?

Options:

A.

It supposes a spanning-tee topology change upon connecting and disconnecting a station on a port

B.

It prevents switched traffic from traversing suboptimal paths on the network.

C.

It allows small, unmanaged switches to be plugged into ports of access switches without the risk of switch loops.

D.

It prevents switch loops caused by unidirectional point-to-point link condition on Rapid PVST + and MST

Discussion
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