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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. xz company requires to build its network based on modular enterprise network architecture. Z company in Shenzhen and Xi'an with 1 R & D base, with an office in Beijing and Shanghai ; at 23 with more than capital cities 50 person office ; the 200 has no more than smaller cities 8 people in a small office j There are usually more than 200 market and technical personnel on business trips at any given time .Due to environmental and cost issues, some offices cannot access the headquarters through dedicated lines or packet-switched wide area network connections.According to these circumstances, the network module that Z company should have is ____ .

A) Large type branch network
B) VPN access into
C) dedicated line / packet switched access
D) far away / distributed office network

2. The following information about VoIP saying voice transmission error is ______ .

A) need to UDP provides multiplexing mechanism
B) needs to UDP provides a time stamp mechanism
C) need to RTP to provide re-ordering mechanism
D) needed to TCP to provide reliability mechanisms

3. The following regarding L the SR provided label switched on for the apparatus ( the SWAP ) operation statement is correct _______ .

A) When the message arrives at the LSR , the MPLS label value carried in the message is changed to the incoming label of the corresponding label forwarding entry
B) When the message arrives at the LSR , compare the MPLS label value carried in the message with the incoming label entry in the label forwarding table
C) When the message arrives at the LSR , the MPLS label value carried in the message is changed to the out label of the corresponding label forwarding entry
D) When the message arrives at the LSR , compare the MPLS label value carried in the message with the out-label entry in the label forwarding table

4. After grabbing the message between two remote routers, it was found that the data packet was composed of the IP header, the ESP header, and the encrypted data.Then the data packet may go through which of the following processes ___ .

A) IPSec over GRE , IPSec adopts tunnel mode
B) GRE overIPSec , IPSec adopts tunnel mode
C) GRE overIPSec , IPSec adopts transmission mode
D) IPSec over GRE , IPSec adopts transmission mode

5. Among the following DSL technologies, the highest transmission rate is

A) VDSL
B) ADSL2+
C) HDSL
D) SHDSL
E) ADSL

Solutions: