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2018 July Microsoft Official New Released 77-605
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Designing Cisco Network Service Architectures
Question No: 81
What is the purpose of an OTV edge device?
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connect to other data centers
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connect to the access layer
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connect to the end users
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connect to mobile devices
Answer: A Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/D CI3_OTV_Intro/DCI_1.html
quot;Edge Device
The edge device (Figure 1-1) performs OTV functions: it receives the Layer 2 traffic for all VLANs that need to be extended to remote locations and dynamically encapsulates the Ethernet frames into IP packets that are then sent across the transport infrastructure.
[…]
Finally, the OTV edge device can be positioned in different parts of the data center. quot;
Question No: 82
Which of the following facts must be considered when designing for IP telephony within an Enterprise Campus network?
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Because the IP phone is a three-port switch, IP telephony extends the network edge, impacting the
Distribution layer.
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Video and voice are alike in being bursty and bandwidth intensive, and thus impose requirements to be lossless, and have minimized delay and jitter.
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IP phones have no voice and data VLAN separation, so security policies must be based on upper layer traffic characteristics.
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Though multi-VLAN access ports are set to dot1q and carry more than two VLANs they are not trunk ports.
Answer: A Explanation:
Well, it seems there are no good answers.
-gt; Multi-VLAN can carry exactly 2 Vlans, not more.
-gt; IP Phones have Vlan separation. The answer could be true if they were talking about SOFT phones.
-gt; Voice is not bandwidth intensive.
-gt; IP phones is a 3-port switch and it extends the network edge but it impacts the access layer, not the
distribution..
Question No: 83 DRAG DROP
Answer:
Question No: 84
Explain to a customer 2 advantages of the routing summarization.(Choose two)
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small routing table
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small upstream impact of a flapping interface
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fast convergence
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security
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enhance view of the architecture
Answer: A,B
Question No: 85
Two Cisco switches with 1 SUP and many 10G line-card ports for each switch, run in VSS mode. In which case or for what reason you don#39;t connect all VSL to SUP?
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The need for hardware diversity
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Bandwidth congestion at SUP
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In case the sup fail
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Qos must be configured on both
Answer: A
Question No: 86
Which option is correct when using VSS to combine two physical switches into one logical switch? (Choose two)
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Both data planes forward traffic simultaneously.
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Only one data plane forwards traffic, while the other data plane is on standby.
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Both control planes forward traffic simultaneously.
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Control planes are combined into one virtual control plane.
Answer: A,D
Question No: 87
Which ISP technology can be implemented as a service when designing a topology to perform extranet
connectivity via multitenant segmentation from within a corporate intranet?
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Cisco Easy VPN
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GRE over IPsec
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MPLS
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VTI
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VPNaaS
Answer: C
Question No: 88
DCI: simple extend layer 2 data center less than 4000 VLAN ? (Choose Two)
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OTV
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VXLAN
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LISP
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MPLS
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L2TP
Answer: A,D Explanation:
MPLS using AToM or VPLS I guess..
VXLAN could do it but I think they would have not specified quot;lt;4000 vlansquot; if they wanted us to answer that.
In fact, we could even think of L2TPv3…
Even if it#39;s really dirty, it#39;s possible (https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/l2tpv30s.html#wp1027175 quot;For L2TPv3, an Ethernet subinterface configured to support VLAN switching may be bound to an Xconnect service so that all Ethernet traffic, tagged with a VID specified on the
subinterface, is tunneled to another PE.quot;)
Question No: 89
Which two characteristics are most typical of a SAN? (Choose two.)
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NICs are used for network connectivity.
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Servers request specific blocks of data.
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Storage devices are directly connected to servers.
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A fabric is used as the hardware for connecting servers to storage devices.
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The TCO is higher because of the cost of director class storage switches.
Answer: B,D
Question No: 90
What are two advantages of a L2 looped data center design model? (Choose two.)
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promotes Layer 2 high availability
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prevents VLAN propagation
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allows sharing of service modules
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eliminates the use of STP
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improves data transfer speeds
Answer: A,C
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