Cisco Certified Design Expert Practical : 352-011

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Cisco Certified Design Expert Practical 352-011 Prüfungsfragen mit Lösungen:

1. You must make IGP redesign recommendations for a client that has old equipment, with low CPU power and memory, that they do not have budget replace. They are very concerned about CPU load on routers. They are using IS-IS as the IGP in a single l1 area and all routers are connected to each other with point-to-point links.
Which method do you recommend to reduce or limit CPU overhead caused by IS-IS?

A) Select a router to act as a pseudowire to limit topology synchronization
B) Use mesh groups to limit flooding of LSAs
C) Implement wide style metrics for IS-IS on all routers
D) Divide the router into multiple areas and implement address summarization

2. Which two options describe the advantages of using DWDM over traditional optical networks? (Choose two)

A) Inherent topology flexibility with intelligent chromatic dispersion
B) Inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol
C) Inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation
D) Inherent topology flexibility with built-in service protection
E) Ability to expand bandwidth over existing optical infrastructure

3. You are redesigning a single-level IS-IS network with 500 routers, which have short-haul and long-haul links Most of the time the routing domain is stable, but periodically interfaces on long-haul links bounce for a short period of time , causing 10 to 20 flaps in a few minutes. The probable cause is local road construction.
Although fast convergence important, the client has concerns about taxing CPU cycles on the older routing platforms. What change should you recommend that both protects the CPU of the older routers during the short periods of excessive flapping, yet does not have an impact on fast convergence for all interface failures?

A) Modify the length of time than an LSP remains in the router database without being refreshed on all routers
B) Implement LSP generation throttling on routers with long-haul links
C) Modify hello timers on routers with short-haul links
D) Implement a delay between successive IS-IS LSP packet transmissions on routers with long-haul links

4. Which two reasons for implementing Cisco MPLS TE in a service provider MPLS backbone are valid?
(Choose two.)

A) when Cisco MPLS TE is required to route different MPLS QoS service classes through different paths
B) when Cisco MPLS TE is a prerequisite for implementing RSVP in the backbone
C) when Cisco MPLS TE can detect and react to neighbor failures faster than IGPs can
D) when Cisco MPLS TE is required to reroute traffic within Jess than 1 second in case of a link failure inside the backbone
E) when Cisco MPLS TE is required to create backup paths independently from the IGP

5. Refer to the exhibit.

ACME Mining has four data centers in Santiago, Cape Town, Mumbai, and Beijing. They are full-mesh connected via a 400 Mb/s EVP-LAN. A 1-TB transfer occurs daily via FTP between the Santiago and Mumbai data centers. When testing, the data transfer took an ''unexpected and outrageous, with an average transfer rate of 47 KB/s. The team provided this information.
LAN bandwidth usage below 5% at both data centers during transfer.
WAN bandwidth usage was between 20-30% at both data centers during transfer.
The only QoS on WAN is KB/s strict priority configured for other types of traffic.
There is no QoS on LAN.
The ping RTT average between data centers is 378 milliseconds.
Which action improves the file transfer rate?

A) Classify FTP transfer and use the strict priority queue on the WAN.
B) Use SFTP instead of FTP
C) Use TFTP instead of FTP.
D) Apply optimization techniques at both data centers.

Fragen und Antworten: