[Jan 14, 2022] GB0-391 Test Engine files, GB0-391 Dumps PDF
Latest H3C GB0-391 PDF and Dumps (2022) Free Exam Questions Answers
NEW QUESTION 128
Based on SOA network architecture to enterprise IT systems into which of the following levels ? ( Select one or more )
- A. should application layer
- B. base infrastructure layer
- C. will then layer
- D. mesh network layer
Answer: A,B
NEW QUESTION 129
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 130
Which of the following descriptions about GRE are correct ? ( Choose one or more )
- A. GRE VPN can transmit multicast data
- B. adopted using IP over IP of GRE encapsulation, the public network and private network interfaces may not coincide with the address
- C. bearing carrier lP head is lP protocol number 47 identifies the GRE header
- D. the GRE with the Ethernet protocol type 0 x0806 identified load package for lP
Answer: A,B,C
NEW QUESTION 131
In the L2TP networking, there are three ways for LNS to authenticate users: proxy authentication, mandatory CHAP authentication and LCP renegotiation.The highest priority is ____ .
- A. LCP renegotiation
- B. All the same
- C. on behalf of the agent authentication
- D. Strong system CHAP authentication
Answer: A
NEW QUESTION 132
The advantages of the hierarchical network model include ___ .( Choose one or more )
- A. drop low-end delay
- B. by strong network scalability
- C. provide high network throughput
- D. will be to maintain the network of
Answer: B,D
NEW QUESTION 133
Which of the following configuration steps should be performed when configuring QoS Polic ?
- A. with a set strategy
- B. distribution counter classifiers
- C. with set behavior
- D. with home broadband
Answer: A,B,C
NEW QUESTION 134
In the BGP MPLS VPN network, which of the following items ______ exist on the P device ?
- A. Public network routing table
- B. Public network label forwarding
- C. Private network routing table
- D. Private network label forwarding
Answer: A,B
NEW QUESTION 135
In BGP MPLS VPN of networking, P devices need to support Which of the following features ?
- A. Private network MPLS label
- B. Public network MPLS label
- C. RT
- D. RD
Answer: A,B,C,D
NEW QUESTION 136
Which of the following statements about VPNv4 addresses is correct is _______ .
- A. VPNv4 addresses have more RD prefixes than IPv4 addresses
- B. VPNv4 address length is 96bit
- C. In BGP MPLS VPN group network, a public network forwarding the packet destination address is VPNv4 address
- D. VPNv4 address will not appear in user data packets
Answer: A,D
NEW QUESTION 137
PPP link transmission portion of the packet header information remains the same, in order to improve the throughput of the link, it may be considered by ______ mechanism.
- A. link channel and slice interleave
- B. IP packet header compression
- C. VJ TCP header compression
- D. PPP packets of STAC-LZS algorithm
Answer: B,C
NEW QUESTION 138
Configure the following commands on the MSR router:
qos pql 1 protocol-ip-tcp1000 queue-top
qos pql 1 protocol-ip-tcp1001 queue-middle
qos pql 1 protocol-ip-tcp1002queue-normal
qos pql 1 protocol-ip-tcp1003 queue-bottom
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos lr outbound cir 10000 cbs 625000 ebs 0
qos pq pql 1
qos rtpq start-port 16384 end-port 32767 bandwidth 1000 cbs 25000
Then when the destination port are 1000 , 1001 , 1002 and 1003 of the TCP packet and matching with RTPQ the flow rates of at 4Mbps speed feed into the MSR , and from the side port G0 / 1 forwarding, the following statements is correct is ______
- A. The forwarding rate of RTPQ traffic packets is about 1Mbps
- B. Head of the port 1002 of TCP packet forwarding rate is 2.4Mbps
- C. Head of port 1000 of TCP packet forwarding rate to 3Mbps
- D. Head of port 1003 of TCP packet forwarding rate is 0
- E. Head of port 1001 of TCP packet forwarding rate is 4Mbps
Answer: A,D,E
NEW QUESTION 139
Among the commonly used VLAN division methods of EPCN networks , which method uses the double-layer VLAN planning ?
- A. PSPV
- B. PUPV
- C. PSV
- D. PUPSPV
Answer: D
NEW QUESTION 140
Which of the following statements about the improvement of ADSL2 relative to ADSL is correct: ( Choose one or more )
- A. ADSL can support flexible bandwidth binding function, such as IMA ( Inverse Multiplexing forATM , ATM inverse multiplexing )
- B. Compared with ADSL, ADSL2 adds a new operating mode
- C. The frequency band of ADSL2 is twice that of ADSL
- D. At the same transmission rate, ADSL2 can transmit longer distances than ADSL
Answer: A,B,D
NEW QUESTION 141
In BGP MPLS VPN networking, the two PE of between BGP neighbor has been established successfully, but the MP-BGP reason can not establish a neighbor might be _______ .
- A. There is no VPN that needs to communicate between the two PEs
- B. There is no MPLS public network tunnel established between PEs
- C. The public network route between two PEs is unreachable
- D. The corresponding neighbor is not enabled in the VPNv4 address family of BGP
Answer: D
NEW QUESTION 142
The figure shows the SSL VPN mode deployed by an enterprise .The correct description of the networking mode is _______ .
- A. This dominant species networking is that all internal and external network traffic networks have been SSL VPN gateway, Full control over these flows
- B. This dominant species networking is that, SSL VPN processing performance gateway does not affect the performance of the communications network and the external network
- C. The networking mode is single-arm networking mode
- D. The networking mode is dual-arm networking mode
Answer: A,D
NEW QUESTION 143
Which of the following codes has the lowest requirement for broadband?
- A. G729
- B. G711
- C. G723
- D. G726
Answer: C
NEW QUESTION 144
Execute the displa interface tunnel command on a router to display the information of the GRE tunnel interface as follows:
<Router> displa interface Tunnel O
Tunnelo current state: UP
Line protocol current state: UP
Description: Tunnelo Interface
The Maximum Transmit Unit is 1476
Internet Address is 192.1.2.1/24 Primar
Encapsulation is TUNNEL , agg regation ID not set
Tunnel source 10.1.11.1 , destination 10.1.13.1
Tunnel keepalive enable , Period ( 10 s ) , Retries ( 3 )
Tunnel protocol/transport GRE/IP
GRE ke disabled
Checksumming of GRE packets disabled
Last 300 seconds input: 0 btes/sec , 0 packets/sec
Last 30 0 seconds output: 0 btes/sec , 0 packets/sec
4 packets input , 72 btes
0 input error
1 packets output , 24 btes
0 0utput error
It can be known from the above information.( Choose one or more )
- A. The tunnel interface is in the UP state, and the MTU is 1476 bytes
- B. The Keeplive function is enabled on the tunnel interface .Once the router does not receive the Keeplive message from the other party within 30s , the tunnel is considered unavailable.Although the tunnel interface is still in the UP state, the tunnel interface is a static route for the outgoing interface Will disappear from the routing table ;
- C. tunnel channel does not start verification, verification can not start
- D. tunnel channel source lP address 192.1.1.1
Answer: A,C
NEW QUESTION 145
In BGP MPLS VPN networking, where will the private network label exist in the following locations ?
- A. Private network routing between PE and CE
- B. In the private network packet forwarded by PE to CE
- C. In the private network packet forwarded by the PE to the P device
- D. Private network routing between PEs
Answer: C,D
NEW QUESTION 146
The encapsulation format of the voice data transmitted in the VoIP network is
- A. IP UDP the I the I the I the RTP speech sound data
- B. IP the I the I RTCP UDP the I the I the RTP speech sound data
- C. IP TCP the I the I the I the RTP speech sound data
- D. IP the I the I the RTP speech sound data
Answer: A
NEW QUESTION 147
The following commands are configured on the S3610 switch:
qos map-table dot1p-lp
import 1 export 5
import 2 export 4
interface Ethernet1/0/8
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos trust dot1p
interface Ethernet1/0/9
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos gts an cir 65000 cbs 2000000
Then when the flow rate is 40Mbps the vlan id is 4 and the 802.1p priority to 1 of packets, and a flow rate of 40Mbps is vlan id is 4 and the 802.1p priority 2 packets simultaneously from the end of the port E1 / 0/8 enters , from the side port E1 / 0/9 forwarding when made, the right is ______ ( one or more )
- A. 80Mbps packets are forwarded normally
- B. 802.1p preferred precedence 2 packets at the end of the outlet E1 / 0/9 Forward all
- C. 802.1p preferably precedence 1 packets and 802.1p preferred precedence 2 packets at the end of the outlet E1 / 0/9 has a loss, the ratio of traffic forwarding 5: 4
- D. portions partial misconfigured
- E. 802.1p preferably precedence 1 packets at the end of the outlet E1 / 0/9 Forward all
- F. Packet traffic shaping is 65kbps for forwarding
Answer: E,F
NEW QUESTION 148
Among the following VPN technologies, those belonging to the third layer VPN are ____ .( Choose one or more )
- A. VLL
- B. IPSec VPN
- C. BGP/MPLS VPN
- D. L2TP VPN
Answer: B,C
NEW QUESTION 149
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