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Q121. Which three Layer 2 access designs have all of their uplinks in an active state? (Choose three.)
A. Flex Links
B. loop-free U
C. looped square
D. looped triangle
E. loop-free inverted U
Answer: B,C,E
Q122. Which two ways to manage scalability issues inside an IBGP domain with 20 or more routers are recommended? (Choose two.)
A. Configure route reflectors.
B. Use OSPF instead of EIGRP as an underlying routing protocol.
C. Create a full mesh at Layer 1.
D. Configure confederations.
E. Configure static routes between all routers.
Answer: A,D
Q123. Which statement about vPC technology is true?
A. It allows a device to connect to two separate upstream devices as if they were a single device.
B. It provides the ability to pair two servers in the data center.
C. It promotes better STP designs in the switching infrastructure.
D. It supports IEEE 802.1Q only.
Answer: A
Q124. Which of the following is a recommended practice of a data center core?
A. Server-to-server traffic always remains in the core layer.
B. The core infrastructure should be in Layer 3.
C. Core layer should run BGP along with an IGP because iBGP has a lower administrative distance than any IGP.
D. The Cisco Express Forwarding hashing algorithm is the default, based on the IP address and Layer 4 port.
Answer: B
Q125. What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design?
A. FCoE
B. LACP
C. vPC
D. FEX
Answer: C
Q126. Which technology can block interfaces and provide a loop-free topology?
A. STP
B. VSS
C. VLAN
D. vPC
Answer: D
Q127. A BGP network is having difficulty scaling with the full mesh peer requirement. What two iBGP alternates can scale BGP appropriately? (Choose two.)
A. communities
B. route reflectors
C. confederations
D. peer groups
E. peer templates
Answer: B,C
Q128. Which command can you enter to inject BGP routes into an IGP?
A. redistribute bgp
B. redistribute static
C. redistribute static subnet
D. default-information originate
Answer: A
Q129. Which of these Layer 2 access designs does not support VLAN extensions?
A. FlexLinks
B. loop-free U
C. looped square
D. looped triangle
E. loop-free inverted U
Answer: B
Q130. A network design team is experiencing sustained congestion on access and distribution uplinks. QoS has already been implemented and optimized, and it is no longer effective in ensuring optimal network performance.
Which two actions can improve network performance? (Choose two.)
A. Reconfigure QoS based on the IntServ model.
B. Configure selective packet discard to drop noncritical network traffic.
C. Implement higher-speed uplink interfaces.
D. Bundle additional uplinks into logical EtherChannels.
E. Utilize random early detection to manage queues.
Answer: C,D
