Refer to the exhibit. 

Which order correctly identifies the steps to provision a cable modem to connect to a headend as defined by the DOCSIS standard？（）

单项选择题Whichstatementistrueaboutawormattack？（）

A.Human interaction is required to facilitate the spread.
B.The worm executes arbitrary code and installs copies of itself in the memory of the infected computer.
C.Extremely large volumes of requests are sent over a network or over the Internet.
D.Data or commands are injected into an existing stream of data. That stream is passed between a client and server application.

单项选择题WhichstatementistruewhenICMPechoandecho-replyaredisabledonedgedevices？（）

A.Pings are allowed only to specific devices.
B.CDP information is not exchanged.
C.Port scans can no longer be run.
D.Some network diagnostic data is lost.
E.Wireless devices need to be physically connected to the edge device.
F.OSPF routing needs the command ip ospf network non-broadcast enabled.

多项选择题WhatarethefourfieldsinanMPLSlabel？（）

A.version
B.experimental
C.label
D.protocol
E.TTL
F.bottom-of-stack indicato

多项选择题WhichthreestatementsaretruewhenconfiguringCiscoIOSFirewallfeaturesusingtheSDM？（）

A.A custom application security policy can be configured in the Advanced Firewall Security Configuration dialog box.
B.An optional DMZ interface can be specified in the Advanced Firewall Interface Configuration dialog box.
C.Custom application policies for e-mail， instant messaging， HTTP， and peer-to-peer services can be created using the Intermediate Firewall wizard.
D.Only the outside （untrusted） interface is specified in the Basic Firewall Interface Configuration dialog box.
E.The outside interface that SDM can be launched from is configured in the Configuring Firewall for Remote Access dialog box.
F.The SDM provides a basic， intermediate， and advanced firewall wizard.

单项选择题WhichformofDSLtechnologyistypicallyusedasareplacementforT1lines？（）

A.VDSL
B.HDSL
C.ADSL
D.SDSL