A. to provide service internetworking
B. to support transparency for Layer 2 frames
C. as a connection identifier to indicate destination
D. as a mapping to the DLCI in service internetworking
E. to provide a trunk by which all VLANs can navigate from one site to one or multiple sites
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A. Layer 3 routing between the Access and Aggregation layers facilities the ability to span VLANsacross multiple access switches， which is a requirement for many server virtualization andclustering 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 service， and other network service are commonly integrated by the useof service modules that are inserted in the aggregation switched.
D. Virtualization tools allow a cost effective approach for redundancy in the network design byusing two or four VDCs from the same physical switch.
A. QoS ToS/DSCP values are required to be forwarded transparently
B. Device redundancy is required
C. Per-user ACL support is required
D. Multicast service support is required
A. The design supports multiple server subnets Cisco 642-874： Practice Exam
B. An end-user sees the IP address of the real server
C. SLB routes between the outside and inside subnets
D. The source or destination MAC address is rewritten， but the IP addresses left alone
E. SLB acts as a "bump in the wire" between servers and upstream firewall or Layer 3 devices
A. The bus is limited to 32 devices
B. It is a full duplex serial standard
C. It is a half-duplex serial standard
D. It allows up to 320 MB/s of shared channel bandwidth
A. IP address space is difficult to manage.
B. Broadcast and fault domains arc increased
C. Convergence time is fractionally slower than STP
D. Limits on clustering and NIC teaming are removed
E. Fast uplink convergence is supported tor failover and fallback
最新試題
Which two statements about FCIP and iSCSI are correct？（）
Which path selection protocol is used by Fibre Channel fabrics？（）
Which two design recommendations are most appropriate when EIGRP is the data center corerouting protocol？ （）
At a certain customer’s site， a NAS is logically in the traffic path but not physically in the trafficpath. The NAS identifies clients by their IP addresses. In which access mode has this NAS beenconfigured to operate？（）
One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer？（）
To ensure quality， what is the maximum end-to-end transit time in milliseconds on a voice network？（）
What is the recommended radius of a cell for a voice-ready wireless network？（）
Which statement about Fibre Channel communications is correct？（）
In which two locations in an enterprise network can an IPS sensor be placed？ （）
Which three of the following descriptions are true about the firewall modes？ （）