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CCDE 400-007 Cisco Study Notes

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Total 396 questions

Cisco Certified Design Expert (CCDE v3.1) Questions and Answers

Question 89

As part of workspace digitization, a large enterprise has migrated all their users to Desktop as a Sen/ice (DaaS), by hosting the backend system in their on-premises data center. Some of the branches have started to experience disconnections to the DaaS at periodic intervals, however, local users in the data center and head office do not experience this behavior. Which technology can be used to mitigate this issue?

Options:

A.

tail drop

B.

traffic shaping

C.

WRED

D.

traffic policing

Question 90

Company XYZ, a global content provider, owns data centers on different continents Their data center design involves a standard three-layer design with a Layer 3-only core VRRP is used as the FHRP They require VLAN extension across access switches in all data centers, and they plan to purchase a Layer 2 interconnection between two of their data centers in Europe in the absence of other business or technical constraints which termination point is optimal for the Layer 2 interconnection?

Options:

A.

at the core layer, to offer the possibility to isolate STP domains

B.

at the access layer because the STP root bridge does not need to align with the VRRP active node

C.

at the core layer because all external connections must terminate there for security reasons

D.

at the aggregation layer because it is the Layer 2 to Layer 3 demarcation point

Question 91

Which extensions to GRE tunneling provide session tracking and in-order packet delivery in exchange for additional state stored in tunnel endpoints?

Options:

A.

GRE Protocol Type and Checksum extension fields.

B.

GRE Version and Reserved0 extension fields.

C.

No extension fields are available in the GRE header to track session data and packet sequences.

D.

GRE Key and Sequence number extensions.

Question 92

Sometimes SDN leverages various overlay networking technologies to create layer(s) of network abstraction. What describes an overlay network?

Options:

A.

It transmits packets that traverse over network devices like switches and routers

B.

It encapsulates packets at source and destination, which incurs additional overhead

C.

Packet delivery and reliability occurs at Layer 3 and Layer 4

D.

It is responsible for the delivery of packets; NAT- or VRF-based segregation is required

Page: 23 / 30
Total 396 questions