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| Section | Objectives |
|---|---|
| WAN Fundamentals and Architecture | - Enterprise WAN design principles - WAN technologies overview |
| WAN Optimization Technologies | - Application acceleration techniques - Traffic optimization and QoS principles |
| Enterprise WAN Deployment and Management | - Monitoring and troubleshooting WAN networks - WAN deployment models |
| Secure WAN Construction | - VPN technologies and encryption basics - WAN security policies and access control |
1. Compared with IKE main mode, which of the following advantages does IKE aggressive mode have ?
A) adopted by IKE aggressive mode can provide a speed negotiation
B) IKE aggressive mode can provide authentication
C) IKE aggressive mode is more secure than main mode
D) In the case that both parties in communication can know the IP address of the initiator in advance and need to use the pre-shared key, the aggressive mode can be used
2. How will the packets belonging to the same FEC be processed in the MPLS network ?
A) in LSR on the same label forwarding entry to forward
B) a packet passes LSR perform independent processing apparatus, the packet destination is IP address is different from the forwarding path may be different
C) In the whole MPLS in the same network will be the LSP forwarding
D) In entering the MPLS network of LER are mapped on the same the MPLS label
3. The interconnection between ordinary telephones, PBX and other equipment has a unified interface standard, including analog and digital interfaces.The following are analog voice interfaces.
A) FXS
B) E1
C) FXO
D) T1
4. Which of the following descriptions of the traditional telephone system is correct is ____ .
A) electrically telephone by the subscriber loop connected to the PBX or central office switches, the user is connected to the telephone ring and prostrate PBX a line between the pair comprising Tip and Ring , wherein Ring ground, of Ti access PBX negative electrode.
B) pass the real machine is FXS ordinary telephone devices can be connected to a central office switch via an ordinary telephone line FXO interface.
C) Electric as telephone ringing tone dial tone, is a pair of end PBX provides complete voltage or central office switches.
5. In the BGP MPLS VPN network, which of the following functions should the PE equipment support ?
A) MPLS
B) MPLS LDP
C) MP-BGP
D) Road multiple instances of the protocol
Solutions:
| Question # 1 Answer: A,D | Question # 2 Answer: A,C,D | Question # 3 Answer: A,C | Question # 4 Answer: C | Question # 5 Answer: A,B,C,D |
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