최신 H3CSE-Routing & Switching GB0-391 무료샘플문제:
1. Which of the following PPPoE packets may contain valid PPP Session-ID information ?
A) PADT ( PPPoE Active Discover Ter minate )
B) PADO ( PPPoE Active Discover Offer )
C) PADS ( PFoPoE Active Discover Session-Confirmation )
D) PADI ( PPPoE Active Discover Initiation )
E) PADR ( PPPoE-Active Discover Request )
2. 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) After the LNS receives the Hello control message sent by the LAC
B) After LNs receive the ICCN ( Incoming-Call-Connectea , call connected ) message sent by LAC
C) LNS receives StopCCN ( scop-Control-Connection-Notiflcation ) sent by LAC ; after the message
D) the LNS received LAC transmit the CDN ( Call-Disconnect- Notif , call disconnection notification ) after the message
3. Which of the following special requirements does the routing protocol run between PE and CE _______ .
A) The routing protocol running between PE and CE needs to be bound to the corresponding VPN on PE
B) A dynamic routing protocol must be run between PE and CE , and static routing cannot be configured
C) IBGP routing protocol cannot be selected between PE and CE
D) PE and CE between If running OSPF routing protocol, requires PE on OSPF process number and CE on OSPF process number must be deployed to the same
4. The incorrect description of L2TP VPN and GREVPN is ____ .( Choose one or more )
A) all point to point VPN
B) Both support dynamic address acquisition
C) Both support tunnel verification
D) are based on UDP encapsulation
5. The benefits of using NAT technology for security defense are _____ .
A) make use NAT after art, outsiders can not get information on the internal network
B) make use NAT after technical problems can be avoided when the two interconnected caused due to the internal network address
C) make use NAT after technologies, network users access the network service availability affected
D) make use NAT technology, the internal and external networks are blocked
질문과 대답:
| 질문 # 1 정답: A,C | 질문 # 2 정답: A | 질문 # 3 정답: A,C | 질문 # 4 정답: A,B,D | 질문 # 5 정답: A,B,C,D |
704 개 고객 리뷰
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