ADSL技术主要解决的问题是 ______。A．宽带传输B．宽带接入C．宽带交换D．多媒体综合网络

A. VLANs logically divide a switch into multiple, independent switches at Layer 2.

B. Trunk links can carry traffic for multiple VLANs.

C. VLAN implementation significantly increases traffic due to added trunking information.

D. A VLAN can span multiple switches.

E. VLANs typically increase the number of switches needed

F. VLANs typically decrease the number of switches needed

In their efforts to define "the alcoholic personality", some scientists ______.

A．have identified typical alcoholics

B．have identified preoccupation with self as a cause of alcoholism

C．have found that alcoholics have some characteristics in common

D．have produced an accurate description of a typical alcoholic

A. A new switch has no VLANs configured.

B. Connectivity between VLANs requires a Layer 3 device.

C. VLANs typically decrease the number of collision domains.

D. Each VLAN uses a separate address space.

E. A switch maintains a separate bridging table for each VLAN.

F. VLANs cannot span multiple switches.

What are some characteristics of a caterpillar？ Click on 2 answers.

A．It feeds primarily on nectar.

B．It has a very fast-growing body.

C．It is the adult form. of the species.

D．It has a devouring appetit

What are some characteristics of a caterpillar？ Click on 2 answers.

A．It feeds primarily on nectar.

B．It has a very fast-growing body.

C．It is the adult form. of the species.

D．It has a devouring appetit

Typical characteristics of a work package include:

ARepresentation of units of work at a level where work is performed

BClearly distinguishes one work package from all others assigned to a single functional group

CLimits the work to be performed to relatively short periods of time

DAll of the above

EA and B only

A、something interesting and special

B、something expensive and valuable

C、something typical of China or some local specialties

D、anything