Cisco 400-007 Practice Test - Questions Answers, Page 31
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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?
scalability
stability
complexity
manageability
Which two design option are available to dynamically discover the RP in an IPv6 multicast network? (Choose two)
embedded RP
MSDP
BSR
Auto-RP
MLD
Which two descriptions of CWDM are true? (Choose two)
typically used over long distances, but requires optical amplification
uses the 850nm band
allows up to 32 optical earners to be multiplexed onto a single fiber
shares the same transmission window as DWDM
Passive CWDM devices require no electrical power
Which MPLS TE design consideration is true?
MPLS TE replaces LDP and the dependency of the IGP to identify the best path.
MPLS TE provides link and node protection
MPLS TE optimizes the routing of IP traffic, given the constraints imposed by backbone capacity and application requirements.
MPLS TE requires Layer 3 VPN full-mesh topology deployment
The network designer needs to use GLOP IP address in order make them unique within their ASN, which multicast address range will be considered?
239.0.0.0 to 239.255.255.255
224.0.0.0 to 224.0.0.255
233.0.0.0 to 233.255.255.255
232.0.0.0 to 232.255.255.255
What is a disadvantage of the traditional three-tier architecture model when east west traffic between different pods must go through the distribution and core layers?
low bandwidth
security
scalability
high latency
Which security architecture component offers streamlined security operations, ease of use, and visibility across all network security elements, independent of location or form factor?
threat-centric protection
integrated actionable intelligence
distributed enforcement
central command and control
A software-defined network can be defined as a network with an API that allows applications to understand and react to the state of the network in near real time. A vendor is building an SDN solution that exposes an API to the RIB and potentially the forwarding engine directly. The solution provides off-box processes with the capability to interact with the routing table in the same way as a distributed routing process. Which SDN framework model does the solution use?
replace
augmented
hybrid
distributed
A large enterprise customer is planning a new WAN connection to its headquarters. The current architecture is dual homed with static routing, but users complain when a specific link fails. Failure of the other link does not affect any services or applications. The new WAN connection must provide the headquarters with a resilient network design and increase the return on investment.
Which solution should be recommended to the customer?
Implement granular quality of service on the links.
Procure additional bandwidth.
Use dynamic routing toward the WAN.
Add an additional link to the WAN.
A large enterprise customer has a single router that uses two active/active 10-Mbps internet links in one of its offices. Each link currently handles approximately 7 Mbps of traffic, which is close to the full link capacity.
When a link fails, the failure leads to significantly degraded performance of all applications. Static routing is used. The current ISP cannot deliver additional bandwidth capacity on the existing links. The customer needs a network design that is resistant to failure, but does not increase CAPEX. Which solution should be proposed to the customer?
Implement quality of service on the current links.
Add a third link to the current router.
Add an additional edge router connected to a second ISP.
Use dynamic routing for equal-cost multipath.
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