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400-007 Exam Dumps - Cisco Certified Design Expert (CCDE v3.1)

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Question # 41

Cost is often one of the motivators for a business to migrate from a traditional network to a software- defined network. Which design decision is directly influenced by CAPEX drivers?

A.

scalability

B.

stability

C.

complexity

D.

manageability

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Question # 42

Two routers R1 and R2 are directly connected through an Ethernet link. Both routers are running OSPF over the Ethernet link and OSPF has been registered with BFD. R1 has been set up to transmit BFD at a 50 ms interval, but R2 can receive only at a 100 ms rate due to platform limitations. What does this mean?

A.

After the initial timer exchange. R2 sets its transmission rate to the R1 Desired Min TX interval

B.

After the initial timer exchange. R1 sets its transmission rate to the R2 Required Min RX interval

C.

Timers renegotiate indefinitely, so the timer exchange phase never converges

D.

R2 sets the P-bit on all BFD control packets until R2 sends a packet with the F-bit set

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Question # 43

Which two types of planning approaches are used to develop business-driven network designs and to facilitate the design decisions? (Choose two)

A.

cost optimization approach

B.

strategic planning approach

C.

modular approach

D.

tactical planning approach

E.

business optimization approach

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Question # 44

You were tasked to enhance the security of a network with these characteristics:

• A pool of servers is accessed by numerous data centers and remote sites

• The servers are accessed via a cluster of firewalls

• The firewalls are configured properly and are not dropping traffic

• The firewalls occasionally cause asymmetric routing of traffic within the server data center.

Which technology should you recommend to enhance security by limiting traffic that could originate from a hacker compromising a workstation and redirecting flows at the servers?

A.

Poison certain subnets by adding static routes to Null0 on the core switches connected to the pool of servers.

B.

Deploy uRPF strict mode.

C.

Limit sources of traffic that exit the server-facing interface of the firewall cluster with ACLs.

D.

Deploy uRPF loose mode

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Question # 45

Which management category is not part of FCAPS framework?

A.

Configuration

B.

Security

C.

Performance

D.

Authentication

E.

Fault-management

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Question # 46

The cloud like the Internet is a massive network of independent resources that are designed to be fault tolerant Software components that run in the cloud have no dependencies on the underlying infrastructure which may fail at any time Which two constraints of REST are important when building cloud-based solutions'? (Choose two )

A.

separation of resources from representation

B.

migration of resources by representations

C.

distribution of resources through platforms

D.

hyper-scale as the engine of application state

E.

self-descriptive messages

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Question # 47

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?

A.

ACL based forwarding

B.

unicast RPF loose mode

C.

unicast RPF strict mode

D.

ACL filtering by destination

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Question # 48

What are two advantages of controller-based networks versus traditional networks? (Choose two.)

A.

the ability to have forwarding tables at each device

B.

more flexible configuration per device

C.

more consistent device configuration

D.

programmatic APIs that are available per device

E.

the ability to configure the features for the network rather than per device

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