What are three key differences between the Cisco and Cisco Small Business product portfolios?（）

A . A hub router prevents routes from being advertised to the remote router. B . Only remote routers are configured as stubs. C . Stub routers are not queried for routes. D . Spoke routers connected to hub routers answer the route queries for the stub router. E . A stub router should have only EIGRP hub routers as neighbors. F . EIGRP stub routing should be used on hub routers only.

A . IP precedence B . media type C . DSCP D . outgoing interface E . incoming interface F . DLCI

A . VTP messages are sent out all switch-switch connections. B . VTP L2 messages are communicated to neighbors using CDP. C . VTP manages addition， deletion， and renaming of VLANs 1 to 4094. D . VTP pruning restricts flooded traffic， increasing available bandwidth. E . VTP V2 can only be used in a domain consisting of V2 capable switches. F . VTP V2 performs consistency checks on all sources of VLAN information.

A . all traffic is encrypted using IPSec and the Triple-DES algorithm B . full support for all Enterprise applications, including data, voice, and video C . thousands of Teleworker VPN tunnels can be aggregated to a headquarters location D . the VPN tunnel is an always on site-to-site VPN connection E . portability for use while traveling F . used with broadband Cable/DSL subscriptio

A . IS - IS is more CPU - intensive than is OSPF B . For greater fine tuning there are more IS - IS timers C . IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAs D . New additions to the protocol are easily implemented in OSPF but not with IS - IS E . OSPF has more area types than does IS - IS

A . GLBP supports up to eight virtual forwarders per GLBP group B . GLBP supports clear text and MD5 password authentication between GLBP group members C . GLBP is an open source standardized protocol that can be used with multiple vendors D . GLBP supports up to 1024 virtual routers E . GLBP can load share traffic across a maximum of four routers F . GLBP elects two AVGs and two standby AVGs for redundancy

A . VLANs establish broadcast domains in switched networks. B . VLANs utilize packet filtering to enhance network security. C . VLANs provide a method of conserving IP addresses in large networks. D . VLANs provide a low-latency internet working alternative to routed networks. E . VLANs allow access to network services based on department, not physical location. F . VLANs can greatly simplify adding, moving, or changing hosts on the network.

A . ENTER  B . GO_ITEM  C . VALIDATE  D . EXIT_FORM  E . EXECUTE_QUERY

A .  TKIP uses an advanced encryption scheme based on AES B .  TKIP provides authentication and integrity checking using Cipher Block Chaining Message Authentication Code （CBC-MAC） C .  TKIP provides per-packet keyingand a rekeying mechanism D .  TKIP provides message integrity check E .  TKIP reduces WEP’s vulnerabilities byusing different hardware encryption chipset F .  TKIP uses a 48 bit InitializationVector

A . can be used over analog circuits B . maps Layer 2 to Layer 3 address C . encapsulates several routed protocols D . supports IP only E . provides error correctio

A . LLQ supports the addition of strict priority queuing B . With LLQ， bandwidth allocations for the priority queue and all the CBWFQ queues areconfigured using the priority command C . LLQ is configured using MQC and CBWFQ is configured using the fair-queue command D . LLQ priority queue bandwidth is policed with a congestion aware policer E . LLQ does not support WFQ on the default traffic class （class-default）

A . can be used over analog circuits B . maps Layer 2 to Layer 3 address C . encapsulates several routed protocols D . supports IP only E . provides error correctio

A、Expressing agreement B、Asking questions C、Expressing disagreement D、Making guesses

A．Magnitude. B．Weight. C．Direction. D．Power. 此题为多项选择题。

A.the structural view B.the communicative view C.interactional view D.functional view 此题为多项选择题。