In which three network technologies is traffic shaping used to prevent and manage congestion？ （）

A .  Learn B .  Speak C .  Standby D .  Listen E .  Active F .  Remove

A . TCP retransmits B . UDP priority C . Bursty D . Delay sensitive E . Greedy F . Drop sensitive

A . Duplex mode selections B . Auto MDIX selections C . Status Selections D . Group mode selections E . Port security selectio

A . A WLAN client will operate in half-duplex mode. B . The Aironet 1230 access point is an example of an access point that operates solely as a lightweight access point. C . Ad hoc mode allows mobile clients to connect directly without an intermediate AP. D . WLANs are designed to share the medium and can easily handle an increased demand of channel contention. E . A lightweight AP receives control and configuration from a WLAN controller to which it is associated. F . Another term for infrastructure mode is independent service set （IBSS）.

A . It is the Routing protocol used between ATM switches B . PNNI uses the same Dijsktra algorithm for SPF calculation C . PNNI and OSPF use the same Database to make cohesive decision for packet forwarding D . PNNI measures line capacities and delays in addition to simple cost metric

A . origin B . router-ID C . AS-path D . local-preference E . next-ho

A .  To verify the MST configuration， the show pending command can be used in MST configuration  mode. B .  When RSTP and MSTP are configured； UplinkFast and BackboneFast must also be enabled. C .  All switches in the same MST region must have the same VLAN-to-instance mapping， but  different configuration revision numbers. D .  All switches in an MST region， except distribution layer switches， should have their priority  lowered from the default value 32768. E .  An MST region is a group of MST switches that appear as a single virtual bridge to adjacent  CST and MST regions. F .  Enabling MST with the "spanning-tree modemst" global configuration command also enables  RSTP.

A . Performing end-user training on the use of antispyware software B . Performing virus scans C . Scanning a network for active IP addresses and open ports on those IP addresses D . Using password-cracking utilitie

A . It provides reliable input for verifying network consistency. B . It requires a network audit to support some upgrade decisions. C . It requires a network audit to support any network restructuring. D . It begins with gathering organizational input that may be inaccurate.

A .  A device is trusted if it correctly classifies packets. B .  A device is trusted if it correctly declassifies packets. C .  The outermost trusted devices represent the trust boundary. D .  Classification and marking occur using 802.1ab QoS bits before reaching the trust boundary.   E .  Network trust boundaries are automatically configured in IOS version 12.3 and later. F .  For scalability， classification should be done as close to the edge as possible.

A .  voice stream mixing for conference calling B .  voice gateway C .  call admission control D .  analog or digital phone interfaces E .  XML application services F .  large scale dial plan applicatio

A .  H·323 B .  UDP C .  RTP D .  TCP E .  Media Gateway Control Protocol （MGCP） F .  session initiation protocol （SIP）

A .  In ad hoc mode， the Independent Basic Service Set （IBSS） is a framework in which mobile  clients connect directly without an intermediate access point. B .  In Infrastructure mode， the Basic Service Set （BSS） is a framework in which mobile clients use  a single access point for connecting to each other or to wired network resources. C .  In Infrastructure mode， the Extended Services Set （ESS） is a framework in which two or more  Basic Service Sets are connected by a common distribution system （DS）. D .  In Infrastructure mode， the Independent Basic Service Setet （IBSS） is a framework in which  mobile clients connect directly without an intermediate access point. E .  In ad hoc mode， the Basic Service Set （BSS） is a framework in which mobile clients use a  single AP for connecting to each other or to wired network resources. F .  In ad hoc mode， the Extended Services Set （ESS） is a framework in which two or more Basic  Service Sets are connected by a common distribution system （DS）

A .  Authentication   B .  Mobility C .  Security management D .  Transmission of beacon frames E .  Real-time portions of MAC management F .  Real-time aspects of the 802.11 prtocol management G .  SNMP collectio

A . Dual stack B . NAT C . Flow label D . Mobile IP E . 6to4 tunneling F . Anycast G . MBGP

A . Within an AS, all routers must run either BGP or IBGP. B . An AS uses exterior gatew ay protocols (EGPs) to exchange information with other autonomous systems. C . An AS is a group of routers under the same technical administration. D . Within an AS, routes learned through BGP can be redistributed using interior gateway protocols. E . Wi thin an AS, routes learned through an interior protocol cannot be redistributed using BGP to other autonomous systems.

A .  EAP-over-LAN B .  EAP MD5 C .  STP D .  protocols not filtered by an ACL E .  CDP F .  TACACS+

A . H323 B . UDP C . RTP D . TCP E . Media Gateway Control Protocol (MGCP)   F . session initiation protocol (SIP)&e

A . Antenna power is a relative value reference to dBi B . LWAPP allows encrypted communications between lightweight access points and WLANcontrollers. C . Characteristics of antennas are directionality， gain， and polarization D . Power over Ethernet （PoE） is only available when a WLAN controller is integrated into thenetwork E . The WLAN solution Engine （WLSE） is used to control lightweight access points F . One of the advantages of the lightweight WLAN solution is that the devices act indepently

A . Asynchronous Transfer Mode （ATM） B . data-link switching （DLSw） C . Route Processor Redundancy （RPR） D . Frame Relay （FR）  E . Metro Ethernet F . Multiprotocol Label Switching （MPLS）

A . 2031::130F::9C0:876A:130B B . 2031:0000:130F:0000:0000:09C0:876A:130 B C . 2031:0:130F:::9C0:876A:130B D . 2031::130F:0::9C0:876A:130B E . 2031:0:130F:0:0:09C0:876A:130B F . 2031:0:130F::9C0:876A:130B

A . Overlay tunnels can only be configured between border routers capable of supporting IPv4 and IPv6. B . An manual overlay tunnel supports point - to - multipo int tunnels capable of carrying IPv6 and Connectionless Network Service (CLNS) packets. C . Overlay tunneling encapsulates IPv6 packets in IPv4 packets for delivery across an IPv4 infrastructure. D . Overlay tunnels can be configured between border route rs or between a border router and a host capable of supporting IPv4 and IPv6. E . Cisco IOS supports manual, generic routing encapsulation (GRE), IPv4 - compatible, 6to4, and Intra - Site Automatic Tunnel Addressing Protocol (ISATAP) overlay tunneling mechan isms. F . Cisco IOS supports manual, generic routing encapsulation (GRE), IPv6 - compatible, 4to6, and Multiprotocol Label Switching (MPLS) overlay tunneling mechanisms.

A . Classification and markingoccur using 802.1ab QoS bits before reaching the trust boundary.   B . A device is trusted if it correctly declassifies packets.  C . A device is trusted if it correctly classifies packets. D . Network trust boundaries are automatically configured in IOS version 12.3 and later.   E . The outermost trusted devices represent the trust boundary. F . For scalability， classification should be done as close to the edge as possible.

A . TCP retransmits B . benign C . greedy D . drop sensitive E . smooth F . delay insensitive