确实是一种巧妙的安排,让我们这个地球拥有取之不尽,用之不竭的水、火、土资源。但是,藉此而赖以生存的人类决不满足于仅仅从这些自然资源中获取谷物等以填饱肚子。当然,也只有当他们远离饥饿的时候,才有心思去利用其对世界的认知能力、对周围丰富的联想能力以及由此而进发出的无限创造力,从而将某些自然物转换成为人所需的人造物,创造出一种与当时人类生活方式相适应的生产形式——制陶。这段文字意在说明()。

A．PPP

B．WAP

C．DSL

D．Ethernet

E．L2TPv3

A. wireless connectivity

B. call routing configuration

C. device discovery

D. call forwarding

E. command line configuration

A. to provide VPN access over L2TP

B. to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity

C. for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software

D. for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system

A. The FCIP stack supports file-level storage for remote devices.

B. Both require high throughput with low latency and low jitter.

C. The purpose of FCIP is to provide connectivity between host and storage.

D. TheiSCSI stack supports block-level storage for remote devices.

E. The purpose ofiSCSI is to provide connectivity between separate wide-area SANs.

A. DMVPN

B. MPLS VPN

C. Virtual Tunnel Interface (VTI)

D. SSL VPN

E. PPPoE

A．HBA

B． USB

C． UAC

D． NIC

A．Cellular

B．Satellite

C．ISDN

D．WiMAX

E．DSL

A. Microsoft Dynamics

B. Salesforce.com

C. Oncontact

D. Siebel

E. ACT!

A.line quality

B.distance from the CO

C.brand of xDSL modem

D.number of twisted-pair wires used