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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. In the Ethernet access application, the correct statement about the deployment of the access point AN and the aggregation equipment AGG at the edge of the operator's access network is ____ .

A) When AN uses a three-layer switch, the maximum number of user terminals that an AGG device can connect to will no longer be limited by the number of its own MAC address table entries
B) When AN adopts a Layer 2 switch, it needs to support and deploy complex Layer 2 isolation and security features on AN and AGG
C) the AN taken when a switcher, three switches can team with respect to the end-user access to a higher density to achieve
D) When AN adopts a three-layer switch, it is more helpful to control the scope of the broadcast domain than a two-layer switch

2. Which of the following VPN technologies are suitable for enterprise employees to remotely access the enterprise private network through the Internet ? ( Choose one or more )

A) GRE VPN
B) L2TP VPN
C) BGP/MPLS VPN
D) SSL VPN

3. Which of the following descriptions about L2TP tunnel ( Tunnel ) and L2TP session ( Session ) are correct is ____ .( Choose one or more )

A) L2TP session can be carried out before L2TP tunnel is established
B) with one pair of LNS and LAC can only be established between a L2TP tunnel
C) with one pair of LNS and LAC can establish one or more between the L2TP tunnel
D) The L2TP session must be carried out after the L2TP tunnel is established

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

5. If the user configures the packet filtering strategy incorrectly and filters all TCP packets, what happens to the call in the H.323 network ?

A) Does not affect calls between terminals
B) that a call will be discontinued in RAS stage
C) that a call will be discontinued in H.245 stage
D) that a call will be discontinued in Q .Stage 931

Solutions: