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Best Quality H3C GB0-391 Exam Questions
NEW QUESTION 258
When the user uses the phone, after picking up the phone handle and inputting the called number, which of the following signaling does the ringing of the called phone belong to ______ .
- A. letter information signaling
- B. monitoring tube signaling
- C. Call call signaling
- D. to address signaling
Answer: B
NEW QUESTION 259
Which of the following descriptions about the structure of SIP messages are correct ?
- A. Since the start line, the message header, the message body is a SIP basic components message lacks any part of the SIP message is illegal cancellation message
- B. There are some special SIP response messages without a start line
- C. elimination main message body content of the message is a description of the session to be set up, some special SIP message without the message body
- D. The some SIP message contains one or more message header, used to identify the type of message
Answer: C
NEW QUESTION 260
IPSec security policies which include several ____ .( Choose one or more )
- A. Lee with IKE negotiation parameters of the security policy
- B. Hand worker configuration parameters of security policy
- C. Lee with GRE auto-negotiation mode
- D. Lee with L2TP auto-negotiation mode
Answer: A,B
NEW QUESTION 261
If the user configures the packet filtering strategy incorrectly and filters all TCP packets, what happens to the call in the H.323 network ?
- A. that a call will be discontinued in H.245 stage
- B. Does not affect calls between terminals
- C. that a call will be discontinued in Q .Stage 931
- D. that a call will be discontinued in RAS stage
Answer: C
NEW QUESTION 262
Traffic shaping usually uses ______ to make the traffic output to the downstream network meet a certain restriction standard, and to reduce the fluctuation of the output traffic and make it smoother.
- A. Message compression
- B. make token bucket
- C. teams column adjustment
- D. cache buffer zone
Answer: B,D
NEW QUESTION 263
configure BGP MPLS VPN is required to configure the local VPN private routes and MP-BGP routes into each other, on this part of the configuration of the following statements is correct is ______ .
- A. feature set of the local private network into MP-BGP , it should in BGP 's VPNv4 incorporated address family
- B. When EBGP routing protocol is selected between PE and CE , there is no need to configure local VPN private network routes and MP-BGP routes to import each other
- C. distribution counter local VPN private network and MP-BGP routes into each other, such that the PE device from the local CE routes learned by the MP the BGP advertised to the remote routing protocol PE
- D. with opposing local VPN private network and MP-BGP routes into each other, such that the PE device through MP-BGP from a remote routing protocol PE provided apparatus to learn the private network, by PE and CE routing protocol between Release to local CE
Answer: B,C,D
NEW QUESTION 264
The encapsulation format of the voice data transmitted in the VoIP network data is ______ .
- A. IP|TCP |RTP| voice data
- B. IP|UDP|RTCP|RTP| Voice data
- C. IP|RTP| voice data
- D. IP|UDP|RTP| voice data
Answer: D
NEW QUESTION 265
About L2TP VPN and GRE VPN are correct is ____ .( Choose one or more )
- A. are based lP package
- B. All belong to L3 VPN ( Laer 3 VPN , Layer 3 VPN ) technology
- C. Both support tunnel verification
- D. all point to point VPN
Answer: C
NEW QUESTION 266
In establishing BGP MPLS VPN network, the following parameters which does not require user programming configuration, automatically generated by the device ______ .
- A. RD
- B. VPN private network label
- C. RT properties
- D. Public network label
Answer: B
NEW QUESTION 267
According to Nquist 's theorem, the telephone system samples human voice ______ times per second in order to fully represent the characteristics of the voice signal.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 268
When the queue reaches the most after a large value, the message will be used _____ embodiment discards
- A. Tail discard
- B. RED
- C. Press time sequence, discarding most to packets enqueued
- D. WRED
Answer: A
NEW QUESTION 269
According to the encapsulation form of the message, the IPSec working mode is divided into ____ .
- A. Wild Man mode
- B. Main mode
- C. transfer transport mode
- D. Tunnel Road mode
Answer: C,D
NEW QUESTION 270
The VPI/VCI parameters of ADSL connection are negotiated and determined in ____ .
- A. PPPoE negotiation
- B. Line Road activate
- C. Jian Li low-level link VCC
- D. DMT modulation
Answer: C
NEW QUESTION 271
How does the PPP protocol identify the upper layer packets it carries as MPLS packets ?
- A. In the PPP head of the PPP Protocol field word segment to fill in 0281
- B. In the PPP Association meeting NCP negotiation is completed the peer negotiation phase
- C. In the PPP head of the PPP Protocol field word segment to fill in 8847
- D. In the PPP Association meeting LCP negotiation is completed the peer negotiation phase
Answer: A
NEW QUESTION 272
In the H.323 protocol, which of the following protocols is used to negotiate the capabilities of both parties ?
- A. H.225.0
- B. H.261
- C. H.245
- D. H.263
Answer: C
NEW QUESTION 273
802.1p CoS divided the ______ Classes of Service.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 274
OSPF a process agreement with a VPN After binding, will be out now ______ .
- A. The OSPF into the process only to the VPN are connected to bind the interface CE device establishes OSPF neighbors
- B. The routes learned by the OSPF process will exist in the public network routing table
- C. The OSPF process and it can only be with the OSPF process ID of the same CE build equipment OSPF neighbor living
- D. The OSPF process routes learned only exists in the VPN 's routing table
Answer: A,D
NEW QUESTION 275
Which of the following descriptions about GRE are correct ? ( Choose one or more )
- A. GRE uses the Ethernet protocol type Ox0800 to identify the payload packet as IP
- B. bearing carrier IP header to UDP port number 47 identifies the GRE header
- C. GRE VPN can transmit multicast data
- D. adopted using IP over IP of GRE encapsulation, public network and the private network interface address may coincide
Answer: A,C
NEW QUESTION 276
Which of the following descriptions about L2TP tunnel ( Tunnel ) and L2TP session ( Session ) are correct is ____ .( Choose one or more )
- A. The L2TP session must be carried out after the L2TP tunnel is established
- B. will identify the session ( the Session ID ) is not the same message can reuse the same tunnel
- C. will identify the session ( the Session ID ) is not the same message can not reuse the same tunnel
- D. L2TP session can be carried out before L2TP tunnel is established
Answer: A,B
NEW QUESTION 277
Which of the following options are legal SIP URIs?
- A. sip:[email protected]
- B. sip:[email protected]:5068
- C. to the not right
- D. sip:[email protected]
Answer: A,B,D
NEW QUESTION 278
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