642-871 무료 덤프문제 온라인 액세스

With which of the following does the Cisco Product Advisor help customers? (Choose three.)

• A.protocol components
• B.hardware devices
• C.software options
• D.design options
• E.hardware options

Which four QoS design requirements are the closest to Cisco recommendations for VoIP traffic? (Choose four).

• A.fixed 64 kbps of guaranteed priority bandwidth per call
• B.one-way latency of 150 ms to 200 ms
• C.less than 30 ms of jitter
• D.serialization delay of 100 ms to 150 ms
• E.150 bps (+ Layer 2 overhead) of guaranteed bandwidth for voice control traffic per call
• F.less than 1 percent of packet loss

Which three LAN routing protocols would be appropriate for a small retail organization with a multi-vendor LAN infrastructure? (Choose three.)

• A.IGRP
• B.EIGRP
• C.BGP
• D.OSPF
• E.RIPv2
• F.RIP

Sun Stable is a global insurance company with headquarters located in Houston, Texas.
The campus 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. Rather than deploy a private branch exchange (PBX) in the new building, Sun Stable has decided to implement an IP telephony solution. External calls will be carried across a MAN link to another building, where a gateway connects into the worldwide PBX network of Sun Stable. Voice mail and unified messaging components are required and all IP phones and workstations should be on separate VLANs and IP subnets. Which IP telephony deployment best suits their need?

• A.multisite with distributed call processing
• B.clustering over the WAN
• C.single-site
• D.multisite with centralized call processing

In which two instances would static routing be preferred over the use of dynamic routing protocols? (Choose two.)

• A.in networks using on demand routing that are not expected to grow significantly
• B.when routing to and from stub networks
• C.in a network that has a few very large sites and a single connection to the Internet
• D.in networks where a total knowledge of the network is not known
• E.in small networks that are planning to grow