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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. Which of the following descriptions of the traditional telephone system is correct is ______ .

A) electrical telephones and facsimile machines belong to the FXS ordinary telephone devices can be connected to a central office switch via an ordinary telephone line FXO interface.
B) electrically telephone subscriber loop access through the PBX or central office switches, are connected to the telephone subscriber loop and the PBX a line between the pair comprising TiP and Ring , wherein TiP ground, Ring then PBX negative electrode.
C) electrically telephone ringing tone by the remote PBX providing a voltage or central office switches completed, the dial tone is provided by the telephone set voltage accomplished.

2. Execute the displa interface tunnel command on a router to display the information of the GRE tunnel interface as follows:
<Router> displa interface Tunnel O
Tunnelo current state: UP
Line protocol current state: UP
Description: Tunnelo Interface
The Maximum Transmit Unit is 1476
Internet Address is 192.1.2.1/24 Primar
Encapsulation is TUNNEL , agg regation ID not set
Tunnel source 10.1.11.1 , destination 10.1.13.1
Tunnel keepalive enable , Period ( 10 s ) , Retries ( 3 )
Tunnel protocol/transport GRE/IP
GRE ke disabled
Checksumming of GRE packets disabled
Last 300 seconds input: 0 btes/sec , 0 packets/sec
Last 30 0 seconds output: 0 btes/sec , 0 packets/sec
4 packets input , 72 btes
0 input error
1 packets output , 24 btes
0 0utput error
It can be known from the above information.( Choose one or more )

A) The Keeplive function is enabled on the tunnel interface .Once the router does not receive the Keeplive message from the other party within 30s , the tunnel is considered unavailable.Although the tunnel interface is still in the UP state, the tunnel interface is a static route for the outgoing interface Will disappear from the routing table ;
B) The tunnel interface is in the UP state, and the MTU is 1476 bytes
C) tunnel channel source lP address 192.1.1.1
D) tunnel channel does not start verification, verification can not start

3. Which of the following options are legal SIP URIs?

A) sip:[email protected]
B) to the not right
C) sip:[email protected]:5068
D) sip:[email protected]

4. AAA supports the accounting method of _____ .

A) This ground billing
B) TACACS accounting
C) RADIUS accounting
D) No billing

5. Which statement about traffic shaping is correct?

A) on packets matching traffic shaping shaping matching conditions, do not match the criteria of Discards packets
B) stream traffic shaping will exceed the committed rate packet enqueue the buffer, when there are sufficient tokens and then transmits
C) flow amount of shaping may be applied to the inbound direction
D) stream traffic shaping to reduce packet loss, delay increases

Solutions: