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Q131. To which network layer should Cisco Express Forwarding be tuned to support load balancing and to make more informed forwarding decisions?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7
Q132. A network engineer is designing an address plan based on network applications. Which application presents the greatest need for its own address block?
A. IP telephony
D. physical security
Q133. Which option is a method of restricting access for users based on user roles and locales? A. RBAC
Q134. A network administrator wants to provide high availability in a data center environment by making sure that there is no reconvergence of Layer 2 and Layer 3 protocols when there is a Layer 3 switch failure..Which Cisco Nexus feature fulfills this purpose?
Q135. Which unique characteristics of the Data Center Aggregation layer must be considered by an Enterprise Campus designer?
A. Layer 3 routing between the Access and Aggregation layers facilitates the ability to span VLANs across multiple access switches, which is a requirement for many server virtualization and clustering technologies.
B. "East-west" server-to-server traffic can travel between aggregation modules by way of the core, but backup and replication traffic typically remains within an aggregation module.
C. Load balancing, firewall services, and other network services are commonly integrated by the use of service modules that are inserted in the aggregation switches.
D. Virtualization tools allow a cost effective approach for redundancy in the network design by using two or four VDCs from the same physical switch.
Q136. Which VPN technology is tunnel-less?
A. GET VPN
D. IPsec VPN
Q137. What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design?
Q138. When a router has to make a rate transition from LAN to WAN, what type of congestion needs should be considered in the network design?
A. RX-queue deferred
B. TX-queue deferred
C. RX-queue saturation
D. TX-queue saturation
E. RX-queue starvation
F. TX-queue starvation
Q139. Which two options are two benefits of a Layer 2 looped model? (Choose two.)
A. extends VLANs between switches that are connected to a common aggregation module
B. prevents uplink ports from entering the spanning-tree blocking state
C. provides quick convergence with Rapid Spanning Tree Protocol
D. increases performance to end hosts using directly connected, bonded Layer 2 links
Q140. Which network virtualization technology provides logical isolation of network traffic at Layer 3?