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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. The following information about the AH ( the Authentication Header , Authentication Header ) and the ESP ( Encapsulating Securlt Paload , the Encapsulating Security Payload ) described right there ______ .( Choose one or more )

A) two who can be used at the same time
B) two who can provide data integrity protection
C) two who can provide confidentiality protection
D) two who can provide data origin authentication and optional anti-replay service

2. The information displayed on the MSR router is as follows:
acl number 2000
rule 0 permit source 192.168.0.0 0.0.0.255
acl number 2002
rule 0 permit source 192.168.2.0 0.0.0.255
#
traffic classifier 2 operator and
if-match acl 2002
traffic classifier 1 operator and
if-match acl 2000
#
traffic behavior 2
queue af bandwidth pct 30
traffic behavior 1
queue ef bandwidth pct 30 cbs-ratio 25
#
qos polic test
classifier 1 behavior 1
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
duplex full
speed 10
ip address 192.168.1.1 255.255.255.0
qos appl polic test outbound
When the traffic rate of the packets with the source addresses of 192.168.0.2 , 192.168.2.2 , and 192.168.3.2 are 4Mbps , 4Mbps , 6Mbps , and no other background traffic is forwarded from port G0/1_ .
Then the following statement is correct _____

A) The forwarding rate of packets with the source address of 192.168.0.2 is about 3Mbps
B) The forwarding rate of packets with the source address of 192.168.0.2 is about 1.5Mbps
C) The forwarding rate of packets with the source address of 192.168.0.2 is about 4Mbps
D) The forwarding rate of packets with the source address of 192.168.2.2 is about 3Mbps
E) The forwarding rate of packets with the source address of 192.168.2.2 is about 4Mbps
F) The forwarding rate of packets with the source address of 192.168.2.2 is about 1.5Mbps

3. On a router perform row displa'interface tunnel explicit shown GRE tunnel interface as follows :
<Router>displa interface Tunnel 0
Tunnelo current statle: UP
Line protocol current state: UP
Description: Tunnel 0 Interface
T he Maximum transmit Unit is 1476
Internet Addess is 192.1.1.1/24 Primar.
Encapsulation isTUNNELT aggregation ID not- et
Tunnel source l0.1.11.1 destination 10.1.13.1
Tunnel keeepalive enable Period ( 10 s ) , Retries ( 3 )
Tunnel protocol/transport GRE/IP.
GRE key disable
Checksumming of GRE packets disabled
Last 300 seconds input:.0 btes/secl 0 packet/sec.
Last 300 seconds output:..0 bytes/sec , 0 packets/sec.
4 packets input 72bytes.
0 input error
1 packets output , 24 btes
0 0utput error
From the above information, we can know ____ .( Choose one or more )

A) The tunnel interface is in the UP state, and the MTU is 1467 bytes
B) The Keepalive function is enabled on the Tunnel interface .Once the router fails to receive the Keeplive packets from the other party within 30s , the tunnel is considered unavailable
C) tunnel channel source lP address of 10.1.11.1
D) tunnel track start validation, verification does not start

4. In a VoIP network, which of the following factors are related to the bandwidth saved by VAD technology ?

A) selected encoding type used
B) selected by signaling type
C) mesh network congestion degree
D) said language and characteristics of the speaker

5. The following about symmetric encryption algorithm is ______ .

A) AES
B) RC4
C) DES
D) RAS

Solutions: