最新のGB0-391問題集で試験を準備する

The changes of MP-BGP protocol relative to BGP protocol include

• A. The new increase Extended Communities attribute
• B. The new increase MP UNREACH NLRI attribute
• C. new growth VPNv4 address family
• D. The new increase MP REACH NLRI attribute

In the L2TP networking, there are three ways for LNS to authenticate users: proxy authentication, mandatory CHAP authentication and LCP renegotiation.The highest priority is ____ .

• A. LCP renegotiation
• B. on behalf of the agent authentication
• C. Strong system CHAP authentication
• D. All the same

In the BGP MPLS VPN networking, the following description about the private network label and the public network label is correct _______ .

• A. The value of the public network label and the private network label carried in the message must be different
• B. well different label distribution protocol network and the private network tag label, the label is typically a public network LDP allocation protocol, and the label by the private network MP-BGP distribution protocol
• C. The format of the public network label is different from that of the private network label
• D. The public network label is dynamically allocated, while the private network label is statically allocated

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
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 requires manual configuration of parameters such as keys, SPI , security protocols and algorithms
• B. This security policy requires the use of IKE dynamic negotiation key, SPI , security protocol and algorithm and other parameters
• C. This security policy work in tunnel mode
• D. This security policy works in transmission mode

PPP link transmission portion of the packet header information remains the same, in order to improve the throughput of the link, it may be considered by ______ mechanism.

• A. IP packet header compression
• B. link channel and slice interleave
• C. VJ TCP header compression
• D. PPP packets of STAC-LZS algorithm