Real H3C GB0-391 Exam Dumps with Correct 468 Questions and Answers
Valid GB0-391 Test Answers & H3C GB0-391 Exam PDF
NEW QUESTION 197
When the label distribution method is ______ , the downstream device needs to wait for the label distribution application from the upstream device to distribute the label.
- A. DU ( DOWNstream Unsolicited ) downstream autonomous
- B. There order mode ( Odered )
- C. DOD ( DOWNstream On Demand ) downstream on demand
- D. independent stand mode ( work of the Independent )
- E. Since the embodiment ( Liberal Retention MODE )
Answer: C
NEW QUESTION 198
Configure the following command on the MSR router: qos rtpq start port 16384end-port 32767bandwidth1000cbs25000
Then the correct statement is
- A. its configured start-port port number as the source port number, End Port- port number and destination port number
- B. provided apparatus applied RTPQ queue
- C. start-por and end-port are configured with TCP port numbers
- D. start-por and end-port are configured with UDP port numbers
Answer: B,D
NEW QUESTION 199
Which of the following codes has the lowest requirement for broadband?
- A. G729
- B. G711
- C. G726
- D. G723
Answer: D
NEW QUESTION 200
The cable used in the Ethernet 1000BASE-LX standard is _______ The maximum transmission distance is ________ .
- A. 4 pairs of Category 5 UTP twisted pair, 100m
- B. 4 pairs of Category 3 UTP twisted pair, 100m
- C. multi- mode fiber, 550m
- D. single -mode optical fiber, 5000m
- E. 2 pairs of STP twisted pair, 25m
- F. 2 pairs of Category 5 UTP twisted pair, 100m
Answer: D
NEW QUESTION 201
According to Nquist 's theorem, the telephone system samples human voices every second to satisfy the complete representation of the characteristics of the voice signal.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 202
The following information about VoIP saying voice transmission error is ______ .
- A. need to RTP to provide re-ordering mechanism
- B. needs to UDP provides a time stamp mechanism
- C. need to UDP provides multiplexing mechanism
- D. needed to TCP to provide reliability mechanisms
Answer: B,D
NEW QUESTION 203
A VoIP network is interconnected with a PSTN network and adopts the H.323 protocol.It is required that in addition to normal voice calls, it must also be able to conduct telephone conferences with more than three rooms.The VoIP network must include H.323 components including
- A. network gatekeeper
- B. MCU
- C. terminating end
- D. net off
Answer: B,C,D
NEW QUESTION 204
Among the following DSL technologies, the highest transmission rate is
- A. SHDSL
- B. ADSL2+
- C. HDSL
- D. VDSL
- E. ADSL
Answer: D
NEW QUESTION 205
Among the packets encapsulated by the GRE protocol, the payload protocol is the IPX protocol, and the bearer protocol is the IP protocol.The encapsulation sequence of the packet from the link layer to the payload data is ____ .
- A. link channel layer GRE IPX IP payload data
- B. link channel layer IP GRE IPX carrier bearing data
- C. link channel layer GRE IP IPX carrier bearing data
- D. link channel layer IPX GRE IP payload data
Answer: B
NEW QUESTION 206
Configure the following commands on the MSR router:
qos rtpq start port 16384end-port 32767bandwidth1000cbs25000
Then what is incorrect in the following statement is
- A. provided apparatus applied RTPQ queue
- B. start-por and end-port are configured with UDP port numbers
- C. start-por and end-port are configured with TCP port numbers
- D. its configured start-port port number as the source port number, End Port- port number and destination port number
Answer: C,D
NEW QUESTION 207
below with respect to the AH ( the Authentication Header , Authentication Header ) and the ESP ( Encapsulating Securit Paload , the Encapsulating Security Payload ) described right there ____ .( Choose one or more )
- A. two who can be used at the same time
- B. two who can provide confidentiality protection
- C. AH cannot provide data integrity protection
- D. two who can provide data origin authentication and optional anti-replay service
Answer: A,D
NEW QUESTION 208
When deploying a BGP MPLS VPN network, in order to be able to establish an end-to-end MPLS tunnel between PEs , _______ is required .
- A. not polymerizable PE of Loopback interface address routing
- B. PEs need to learn from each other the precise route of the 32 -bit mask of the Loopback interface address of the peer PE
- C. PE cannot aggregate private network routes learned from CE
- D. no polymerizable address routing interconnect the public network interface
Answer: A,B
NEW QUESTION 209
Execute the command on the MSR router and output the following information:
Execute the command on the MSR router and output the following information:
Interface: GigabitEthernet0/1
Output queue: (Urgent queuing: Size/Length/Discards ) 0/100/0
Output queue: (Protocol queuing: Size/Length/Discards ) 0/500/0
Output queue: (Priorit queuing: PQL 1 Size/Length/Discards)
Top: 3/20/42878 Middle: 10/40/0 Normal: 60/60/259195 Bottom: 80/80/344297
Then the correct statement is
- A. PQ queue scheduling does not take effect , and Middle traffic has no packet loss
- B. PQ queue scheduling takes effect , and Top traffic has no packet loss
- C. PQ queue scheduling takes effect , Top traffic has packet loss
- D. PQ queue scheduling takes effect , no packet loss for Top traffic
- E. PQ queue scheduling does not take effect , Top traffic has packet loss
- F. PQ queue scheduling does not take effect , Top traffic has no packet loss
Answer: A,C
NEW QUESTION 210
MPLS penultimate hop technology reduces _______ packet forwarding complexity.
- A. pour the number of first and second hop hop public network equipment
- B. down the number of the second jump on the public network equipment
- C. down the number of first-hop public network equipment
- D. Private network equipment
Answer: C
NEW QUESTION 211
If the device is employed with a double rate burst single token bucket algorithm for traffic measurement, assume that a moment about a 400 -byte packet arrives, then CBS so that the number of tokens in the token bucket is 300 bytes , The number in the EBS token bucket is 500 bytes, and the message will be marked as
- A. Cheng Connaught the burst
- B. exceed the amount in the emergency
- C. exceed the peak rate
- D. over the Excess Burst
Answer: B
NEW QUESTION 212
Which of the following statements about PKI workflow is correct is ____ .
- A. permit book application made by the entity
- B. Certificate book by the RA issued
- C. solid body status reviewed by the CA to complete
- D. solid body needs to revoke the certificate CA application
Answer: A,D
NEW QUESTION 213
The encapsulation format of the voice data transmitted in the VoIP network data is ______ .
- A. IP| Voice Data
- B. IP|UDP|RTP| Voice data
- C. IP|TCP |RTP| voice data
- D. IP|UDP|RTCP|RTP| Voice data
Answer: B
NEW QUESTION 214
RD is Route Distinguisher , and the correct description about it is ______ .
- A. with a PE different from the VPN the RD not have the same
- B. is not the same PE identical device on the VPN of RD must have the same, or they will not communicate
- C. not with PE on different devices the VPN of RD may be configured the same, in principle there are no conflicts
Answer: B
NEW QUESTION 215
In the GRE encapsulation of IP over IP , the hexadecimal value of the Protocol Tpe field of the GRE header is Ox____ .( Fill in 16 hexadecimal digits )
- A. 0800
Answer: A
NEW QUESTION 216
Which statement about LR is correct?
- A. bits at the link layer, all packets outgoing from the interface can take effect ( critical packets except packets )
- B. so that the flow rate is measured using the token bucket algorithm, would exceed the committed rate of packets into the queue buffer again, it reduces the overall packet loss rate, smooth traffic, introduces additional delay.
- C. It is an active traffic adjustment measure that limits the total rate of packets sent downstream from an interface
- D. Not valid for non- IP packets
Answer: A,B,C
NEW QUESTION 217
In the H.323 protocol, which of the following protocols is used to negotiate the capabilities of both parties ?
- A. H.245
- B. H.225.0
- C. to the answers are right
- D. RAS
Answer: A
NEW QUESTION 218
The following functions of the convergence layer are ____ .( Choose one or more )
- A. access into the security control
- B. High -speed packet-switched
- C. owns a large number of interfaces, and for the final connected user computer
- D. complex routing strategies complicated
Answer: D
NEW QUESTION 219
To reinforce the company's network, you need to ____ user authentication and authorization.
- A. Gordon user land network equipment
- B. Liu Users browse the company's external website
- C. access to the network of the network printer / video terminals
- D. access into the internal network users
Answer: A,D
NEW QUESTION 220
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