Cisco Small Business Switches are specifically engineered for the small business customer. What are two characteristics common to Cisco Small Business Switches？（）

单项选择题Layer3（thenetworklayer）providesconnectivityandpathselectionbetweentwohostsystemsthatmaybelocatedongeographicallyseparatednetworks.Whichtwodevicesoperateatthenetworklayer？（）

A. application
B. hub
C. switch
D. bridge
E. router

单项选择题WhatistheprimarypurposeofSMBSmartDesigns？（）

A. assists in locating appropriate resources
B. provides training on products， tools， and solutions
C. provides a direct support path for any partner issue
D. provides validated commercial solutions
E. provides a step-by-step outline of implementation tasks required

多项选择题TheCiscoSA500SeriesSecurityAppliancesarebuiltspecificallyforbusinesseswithlessthan100employees.Whatarethreeimportantbenefitsofthisdevice？（）

A. site-to-site VPN for remote offices
B. business-grade firewall
C. Cisco IOS software-based
D. email security
E. XML support
F. premium support via SMARTnet

单项选择题WhichcombinationofportsisavailableontheCiscoSPA8800voicegateway？（）

A. four station ports and four trunk ports （4xFXS and 4xFXO）
B. two station ports （2xFXS）
C. eight station ports （8xFXS）
D. one station port and one trunk port （1xFXS and 1xFXO）

多项选择题QoSreferstotheabilityofanetworktoprovideimprovedservice，overvariousunderlyingtechnologies，toselectnetworktraffic.WhichtwotraitsareinherenttoQoS？（）

A. reference to network ability to provide improved service to all network traffic
B. reduction in delay， jitter， and packet loss
C. equal handling of all packets
D. support for real-time applications
E. best-effort actions