Free Access H3C.GB0-391.v2022-05-05.q128 Practice Test (Page 20)

Question 91

by the security gateway device displa ipsec sa command displays the following order information, the information is understood by ______ .
Interface: Serial0/2/1
path MTU: 1500
=========================== ====
-----------------------------
IPsec polic name: "1"
sequence number: 1
mode: isakmp
-----------------------------
connection id: 5
encapsulation mode: transport
perfect forward secrec: None
tunnel:
local address: 10.2.1.1
remote address: 10.2.1.2
Flow:
sour addr: 10.1.1.0/255.255.255.0 port: 0 protocol: IP
dest addr: 10.3.1.0/255.255.255.0 port: 0 protocol: IP
[inbound ESP SAs]
spi: 909448761 ( 0x36351639 )
proposal: ESP-ENCRPT-DES ESP-AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max received sequence-number: 19
udp encapsulation used for nat traversal: N
[outbound ESP SAs]
spi: 1583842120 ( 0x5e678348 )
proposal: ESP-ENCRPT-DES ESP- AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max sent sequence-number: 20
udp encapsulation used for nat traversal: N

A.This security policy uses the ESP+AH encapsulation protocol

B.This security policy works in tunnel mode

C.This security policy IKE dynamic state of a negotiated key , the SPI , security protocols and algorithm parameters

D.This security policy does not enable the NAT traversal function of IPSec/IKE

Question 92

OSPF a process agreement with a VPN After binding, will be out now ______ .

A.The routes learned by the OSPF process will exist in the public network routing table

B.The OSPF into the process only to the VPN are connected to bind the interface CE device establishes OSPF neighbors

C.The OSPF process and it can only be with the OSPF process ID of the same CE build equipment OSPF neighbor living

D.The OSPF process routes learned only exists in the VPN 's routing table

Question 93

Regarding the echo in the VoIP telephone system, which of the following descriptions are wrong ?

A.language voice gateway equipment itself does not bring new echo, but the lP network brings network latency, increasing the echo time delay, leading to the original feel of the echo in VoIP become energy network Felt echo

B.In a VoIP network, the echo is related to the choice of encoding.The greater the compression ratio, the greater the relative echo in the network.

C.speech voice gateway when performing analog to digital conversion may introduce echo, but can be configured to suppress echo in voice gateway function to reduce this effect

D.back sound into electrical echo and acoustic echo, a conventional telephone system is mainly due to two electrical echo, four-wire conversion impedance mismatch caused by

Question 94

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

A.dynamic state authorization is not required to create a security policy

B.dynamic state authorization authorization and security policy is still the intersection of authorization

C.dynamic state does not require authorization client terminal installs

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

Question 95

The following information about VoIP saying voice transmission error is ______ .

A.needs to UDP provides a time stamp mechanism

B.need to UDP provides multiplexing mechanism

C.needed to TCP to provide reliability mechanisms

D.need to RTP to provide re-ordering mechanism

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Question 91

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Question 95

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