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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. The process of LDP session establishment is ______ .

A) o Habitat found -> establish a session -> establish TCP connection -> session maintenance
B) Jian Li TCP connection -> Neighbor Discovery -> establish a session -> session maintenance
C) Jian Li session -> Neighbor Discovery -> establish TCP connection -> session maintenance
D) o Habitat found -> establish TCP connection -> establish a session -> session maintenance

2. The advantages of the hierarchical network model include ___ .( Choose one or more )

A) will be to maintain the network of
B) provide high network throughput
C) drop low-end delay
D) by strong network scalability

3. A company's PBX is connected to the operator's telephone network through an E1 line.Due to the company's expansion, it needs to be able to meet 50 concurrent voice calls.Need to apply for an E1 line ? ( Fill in Arabic numerals )

A) 1

4. OLT issue register cancellation message 5 ONU issuing register_ACK message
3.The following statements about VLAN planning in the EPCNI network are correct: _____ ( choose one or more )

A) PSPV manner the same user for all services use the same one VLAN to be labeled, its implementation can not be guaranteed quality of service.
B) The deployment of PUPSPV mode requires equipment to support QinQ technology.
C) PUPSPV mode can accurately identify users and services, and each user's business has a corresponding vlan id identification.
D) In PUPV mode, all users in the cell share the same business vlan id .

5. The ZLB ( Zero-Length Bod ) message is a control message with only an L2TP header, and its function is to serve as an explicit response to ensure reliable delivery of the control message.
In the following four cases, LNS does not send ZLB message to LAC as a response: ____ .

A) the LNS received LAC transmit the CDN ( Call-Disconnect- Notif , call disconnection notification ) after the message
B) After the LNS receives the Hello control message sent by the LAC
C) After LNs receive the ICCN ( Incoming-Call-Connectea , call connected ) message sent by LAC
D) LNS receives StopCCN ( scop-Control-Connection-Notiflcation ) sent by LAC ; after the message

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