A. Layer 1 intercontroller roaming
B. Layer 2 intercontroller roaming
C. Layer 3 intercontroller roaming
D. Layer 4 intercontroller roaming
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Sun Stable is a global insurance company with headquarters located in Houston， Texas. Thecampus there is made up of a number of office buildings located within the same vicinity. In 2003，a new building.
Building 331B was added. The additional building houses approximately 1000 employees. Ratherthan deploy a private branch exchange （PBX） in the new building， Sun Stable has decided toimplement an IP telephony solution. External calls will be carried across a MAN link to anotherbuilding， where a gateway connects into the worldwide PBX network of Sun Stable. Voice mail andunified messaging components are required and all IP phones and workstations should be on separate VLANs and IP subnets.
ActualTests.comWhich IP telephony deployment best suits their need？（）
A. single-site
B. multisite with centralized call processing
C. multisite with distributed call processing
D. clustering over the WAN
A. DiffServ
B. IntServ
C. RSVP
D. WFQ
A. multicast routing uses RPF
B. multicast routing is connectionless.
C. In multicast routing， the source of a packet is known.
D. When network topologies change， multicast distribution trees are not rebuilt， but use the originalpath
E. Multicast routing is much like unicast routing， with the only difference being that it has a a groupof receivers rather than just one destination
A. 3600 series
B. 7200 series with NSE-1
C. 7500 series
D. 12000 series
Which routing protocol best fits these requirements？（）
- Supported by multiple router vendors
- Requires minimum router CPU and memory resources
- Uses a simple routing metric
- Supports manual or automatic route summarization
A. EIGRP
B. OSPF
C. IS-IS
D. RIPv2
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Refer to the exhibit. Which two of these are characteristics of a firewall running in transparent mode？（）
How many channels are defined in the IEEE 802.11b DSSS channel set？（）
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？（）
Which statement about data center access layer design modes is correct？（）
Which statement about Fibre Channel communications is correct？（）
To ensure quality， what is the maximum end-to-end transit time in milliseconds on a voice network？（）
Which two statements about zoning are correct？（）
Which two statements correctly describe a situation in which an Active/Standby Service Module design is being used？ （）
Which three mechanisms are used to secure management traffic from outside IPS sensors？（）
Which three of the following descriptions are true about the firewall modes？ （）