GB0-391試験無料問題集（468題）「H3C Constructing Secure optimized WANs v2.0 認定」

出題：1

Which of the following statements about EPCN are correct?

A. EPCN is a passive EoC technology.The user terminal is a passive device, and the system transmission loss tolerance is low, which limits its application scope to a certain extent.

B. EPCN conforms to HFC- based broadband access specifications such as DOCSIS 1.0/1.1/2.013.0 .

C. EPCN system main memory deployment coaxial cable distribution network portion of the network, the HFC backbone mainly EPON technology fit therewith.

D. EPCN is an active EoC technology, and the user terminal is an active device, thus avoiding the limitation of the network topology without passive EoC technology.

正解：C,D 解答を投票する

出題：2

In BGP MPLS VPN networking, the two PE of between BGP neighbor has been established successfully, but the MP-BGP reason can not establish a neighbor might be _______ .

A. There is no MPLS public network tunnel established between PEs

B. The public network route between two PEs is unreachable

C. There is no VPN that needs to communicate between the two PEs

D. The corresponding neighbor is not enabled in the VPNv4 address family of BGP

正解：D 解答を投票する

出題：3

The interconnection between ordinary telephones, PBX and other equipment has a unified interface standard, including analog and digital interfaces.The following are digital voice interfaces.

A. E1

B. FXS

C. T1

D. POS

正解：A,C 解答を投票する

出題：4

The wrong description of the relationship between RT and RD is ____ .

A. the RD value of their respective VPN of RT attributes Import Target property or Export Target a property list

B. same on a device different VPN of RD value and the RT attribute values can not be configured to be the same

C. with a VPN to RT value must RD same value

正解：A,B,C 解答を投票する

出題：5

Which of the following service models are usually included in QoS ?

A. IntServ ( Integrated Service )

B. DiffServ ( Differentiated Service )

C. Best Effort

D. FIFO ( First Input First Output )

正解：A,B,C 解答を投票する

出題：6

Which of the following statements about IPSec and IKE is correct is ____ .( Choose one or more )

A. IKE is only responsible for providing security keys for IPSec establishment and does not participate in IPSec SA negotiation

B. IPSec can only establish a security association through cooperation with IKE

C. IKE only with IPSec in conjunction

D. After IPSec SA is established, data forwarding has nothing to do with IKE

正解：D 解答を投票する

出題：7

A PBX of a company in Beijing was originally connected to the operator's telephone network through an analog line, using a total of 18 analog lines.In order to reduce maintenance complexity, it is the most economical choice to apply for a digital line from the operator .

A. E1

B. ATM

C. T1

D. E&M

正解：A 解答を投票する

出題：8

The following VPN technology, belonging to the second layer of VPN are ____ .( Choose one or more )

A. VPLS

B. VLL

C. IPSec VPN

D. GRE VPN

正解：A,B 解答を投票する

出題：9

Which of the following descriptions about H.323 terminals are correct?

A. P pass H.323 terminals may not support the video feature

B. P through PST telephone is a standard H.323 terminal

C. even connected to the PSTN telephone network fax machine is a standard H.323 terminal equipment

D. & Poor pass H.323 terminal may not support fax functionality

正解：A,D 解答を投票する

出題：10

Which of the following codes has the lowest requirement for broadband_____ ?

A. G.726

B. G.729

C. G.711

D. G.723

正解：D 解答を投票する

出題：11

Which of the following statements about SSL VPN access control is correct is ______ .

A. dynamic state requires authorization client terminal installs

B. dynamic state authorization need to create a security policy

C. static state authorized authentication including local and external authentication certification in two ways

D. dynamic state authorization and authorization are two separate static access control

正解：A,B,C 解答を投票する

出題：12

In the MSR router configuration command is as follows:
acl number 2001
rule o permit source 19 2.168.2.0 0.0.0.255
acl number 2002
rule o permit source 192.168.3.0 0.0.0.255
acl number 2003
rule o permit source 192.168.0.0 0.0.0.255
#
traffic classifier 2 operator or
if-match acl 2001
if-match classifier 1
traffic classifier 1 operator and
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter deny
#
qos polic 2
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 0utbound
When the source address are 192.168.2.2.192.168.3.2.192.168.0.2 packets from the port G0 / 1 forwarding outwardly, the following statement is correct ____ .

A. Packets with source address 192.168.3.2 are forwarded normally

B. Packets with the source address of 192.168.0.2 are forwarded normally

C. three message by the flow are blocked

D. Packets with the source address of 192.168.2.2 are forwarded normally

正解：A,B 解答を投票する

出題：13

The correct statement about malformed message defense is ______ .

A. To defend against malformed message attacks, it is necessary to conduct targeted defense against the characteristics of each attack

B. abnormal shaped TCP packet attack by TCP attacks flag is set to a specific value of the packets

C. The ping of death attack uses oversized packets to attack

D. Teardrop attacks use the loopholes of overlapping movement during UDP packet reassembly to attack

正解：A,B,C,D 解答を投票する

出題：14

The following description of QoS jitter is correct.

A. transfer control IP network traffic

B. QoS can create broadband and make the use of broadband more reasonable

C. branch support network of real-time business

D. do force to avoid network congestion

正解：A,C,D 解答を投票する

GB0-391試験無料問題集「H3C Constructing Secure optimized WANs v2.0 認定」