[Dec 10, 2021] GB0-391 Test Engine files, GB0-391 Dumps PDF
Latest H3C GB0-391 PDF and Dumps (2021) Free Exam Questions Answers
NEW QUESTION 136
The four routers R1 , R2 , R3, and R4 are connected in sequence, and Loopback0 interfaces are created on R1 and R4 , and the interface addresses are 1.1.1.1 and 4.4.4.4 respectively.The four devices are configured with dynamic routing protocols to ensure Loopback0 of R1 and R4 .The address is reachable, and a GRE Tunnel is established between R1 and R4 .Check the tunnel interface information on R1 as follows:
[R1]displa interface Tunnel 0
Tunnelo current state: UP
Line protocol cu rrent state: UP
Description: Tunnelo Interface
The Maximum Transmit Unit is 1476
Internet Address is 10.0.0.1/30 Primar
Encapsulation is TUNNEL , aggregation ID not set
Tunnel source l.1.1.1 , destination 4.4.4.4
Tunnel keepalive disable
Tunnel protocol/transp ort GRE/IP
GRE ke disabled
Checksumming of GRE packets disabled
Last 300 seconds input: 2 btes/sec , 0 packets/sec
Last 300 seconds output: 2 btes/sec , 0 packets/sec
15 packets input , 840 btes
0 input error
27 packets output , 1248 btes
0 0utput error
At this time, if the link between R2 and R3 is interrupted , the following statement is correct.
- A. The IP address of the Tunnel interface of R4 should be 10.0.0.2.
- B. The source IP of the Tunnel interface of R4 is 1.1.1.1 , and the destination IP is 4.4.4.4
- C. Rl on Tunnel interface remains UP state
- D. The status of the Tunnel interface on R1 is Down
Answer: A,D
NEW QUESTION 137
In PPPoE applications, the Ethernet MAC address of the access end is determined in the _____ phase of PPPoE .( Please fill in English )
- A. Discovery
Answer: A
NEW QUESTION 138
The three routers are shown in the figure .A GRE tunnel is created between Routerl and Router3 .The configuration commands for the three routers are:
Router1 :
[Routerl]interface Serial 0/2/0
[Routerl-Serial0/2/0]ip address 10.1.1.1 24
[Routerl]interface loopback 0
[Routerl-LoopBack0]ip address l.1.1.1 32
[Routerl]interface Tunnel 0
[Routerl-Tunnel0 ]source 10.1.1.1
[Routerl-Tunnel0]destination 20.1.1.2
[Routerl-Tunnel0]ip address 100.1.1.1 24
[Routerl]ospf
[Routerl-ospf-l]area 0
[Routerl-ospf-l-area-0.0.0.0] network 1 0.1 .1 .1 0.0.0.255
[Routerl]ip route-static 3.3.3.3 32 100.1.1.2
Router2:
[Router2]interface Serial 0/2/0
[Router2-Serial0/2/0]ip address 10.1.1.2 24
[Router2]interface Serial 0/2/1
[Router2-Serial0/2/1]ip address 20.1.1.1 24
[Router2]ospf
[Router2-ospf-l]area 0
[Router2-ospf-l-area-0.0.0.0] network 10.1.1.2 0.0.0.255
[Router2-ospf-l-area-0.0.0.0] network 20.1.1.1 0.0.0.255
Router3:
[Router3]interface Serial 0/2/0
[Router3-Serial0/2/0]ip address 20.1.1.2 24
[Router3]interface loopback 0
[Router3-Loop Back0]ip address 3.3.3.3 32
[Router3]interface Tunnel 0
[Router3-Tunnel0]source 20.1.1.2
[Router3-Tunnel0]destination 10.1.1.1
[Router3-Tunnel0]ip address 100.1.1.2
[Router3]ospf
[Router3-ospf-l]area 0
[Router3-ospf-l-area-0.0.0.0] network 20.1.1.2 0.0.0.255
[Router3]ip route-static l.1.1.1 32 100.1.1.1
Use the command ping-a 1.1.1.1 3.3.3.3 on the Router to check the connectivity, l00% received icmp reply packets.
In the process of upward progress, the following describes the processing of data packets by each router.The correct one is _____ .( Choose one or more )
- A. Router .1 for ICMP Echo Request packet GRE decapsulates
- B. Router2 performs GRE decapsulation of ICMP Echo Request packets
- C. Router .1 for ICMP Echo reply message packets GRE encapsulation
- D. Router3 for ICMP Echo reply message packets GRE encapsulation
Answer: D
NEW QUESTION 139
In the SIP network, which of the following devices belong to UA?
- A. connected to a common voice on the gateway PSTN phone
- B. language voice gateway
- C. SIP server
- D. IP phone
Answer: B,D
NEW QUESTION 140
The following statement about RED random early detection is incorrect.
- A. The higher the priority of the message , the lower the probability of discarding it, which means the less discarded it is
- B. In discarded after a congested port
- C. flat average queue length is less than the minimum discard threshold, discarding packets not
- D. flat average queue length is greater than the minimum discard threshold, packets are dropped randomly
- E. flat average queue length is greater than the maximum discard threshold, packets are dropped randomly
Answer: A,B,E
NEW QUESTION 141
User behavior management needs to pay attention to the content of ________ .
- A. use when the user access through the NAT conversion, which is converted into a public IP address
- B. use when users access the Internet
- C. with household Internet use what kind of computer
- D. a user visited which website
Answer: A,B,D
NEW QUESTION 142
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 143
The Beijing company a PBX original carrier telephone network access through an analog line, for expansion, the operator intends to apply for a digital line, is the most good choice.
- A. ATM
- B. E&M
- C. T1
- D. E1
Answer: D
NEW QUESTION 144
Among the following tunneling technologies that do not have the function of data encryption are ______ .
- A. GRE
- B. MPLS-VPN
- C. IPSec tunnel
- D. L2TP
Answer: A,B,D
NEW QUESTION 145
Which of the following descriptions about L2TP tunnel ( Tunnel ) and L2TP session ( Session ) are correct is ____ .( Choose one or more )
- A. will identify the session ( the Session ID ) is not the same message can not reuse the same tunnel
- B. L2TP session can be carried out before L2TP tunnel is established
- C. will identify the session ( the Session ID ) is not the same message can reuse the same tunnel
- D. The L2TP session must be carried out after the L2TP tunnel is established
Answer: C,D
NEW QUESTION 146
The interconnection between ordinary telephones , PBXs and other devices has a unified interface standard, including analog and digital interfaces.The following belong to the digital voice interface is ______ .
- A. FXS
- B. POS
- C. T1
- D. E1
Answer: C,D
NEW QUESTION 147
The user wants to design an H.323 network and requires unified and centralized control of all call permissions.Which of the following components are not necessary ?
- A. network gatekeeper
- B. MCU
- C. terminating end
- D. net off
Answer: B,D
NEW QUESTION 148
The information displayed on the MSR router is as follows:
acl number 2000
rule 0 permit source 192.168.0.0 0.0.0.255
acl number 2002
rule 0 permit source 192.168.2.0 0.0.0.255
#
traffic classifier 2 operator and
if-match acl 2002
traffic classifier 1 operator and
if-match acl 2000
#
traffic behavior 2
queue af bandwidth pct 30
traffic behavior 1
queue ef bandwidth pct 30 cbs-ratio 25
#
qos polic test
classifier 1 behavior 1
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
duplex full
speed 10
ip address 192.168.1.1 255.255.255.0
qos appl polic test outbound
When the traffic rate of the packets with the source addresses of 192.168.0.2 , 192.168.2.2 , and 192.168.3.2 are 4Mbps , 4Mbps , 6Mbps , and no other background traffic is forwarded from port G0/1_ .Then the following statement is incorrect is _____
- A. The forwarding rate of packets with the source address of 192.168.0.2 is about 2.7Mbps
- B. The forwarding rate of packets with the source address of 192.168.0.2 is about 4Mbps
- C. The forwarding rate of packets with the source address of 192.168.2.2 is about 3Mbps
- D. The forwarding rate of packets with the source address of 192.168.2.2 is about 4Mbps
- E. The forwarding rate of packets with the source address of 192.168.0.2 is about 3Mbps
- F. The forwarding rate of packets with the source address of 192.168.2.2 is about 2.7Mbps
Answer: A,B,D,F
NEW QUESTION 149
Among the following fiber access methods, the highest degree of fiberization is
- A. FTTH
- B. FTTA
- C. FTTB
- D. FTTC
Answer: A
NEW QUESTION 150
When the link type of the ONU port is Trunk , its processing method for downstream messages is _____ .
- A. Only allow the packets with the default VLAN tag to pass and remove the tag
- B. only allowed without Tag packets to pass through, and the packets add the default VLAN of Tag
- C. Only allow tagged messages to pass
- D. for without receipt of the Tag message, add the default VLAN Tag ; for received with Tag packets forwarded directly
Answer: C
NEW QUESTION 151
As the client, the PC uses the client LAC mode to establish an L2TP tunnel through the iNode and the LNS , and prompts that the acquisition of the lP is overtime.The possible cause of this problem is ____ .( Choose one or more )
- A. Tunnel interface verification fails
- B. IP address pool configuration error
- C. LNS to LAC authentication fails
- D. Incorrect username and password on iNode
Answer: B
NEW QUESTION 152
Which of the following is correct about the encryption algorithm?
- A. for said encryption algorithm efficiency higher
- B. of said encryption algorithm is suitable for a large amount of data transfer environment
- C. to safety, said encryption algorithm depends entirely on the security of the key itself
- D. for encryption algorithm called AES , 3DES , DES , etc.
Answer: A,B,D
NEW QUESTION 153
The L2TP session information can be displayed through the ____ command .
- A. display 12 tp status
- B. display 12tp tunnel
- C. display 12t p verbose
- D. display 12tp session
Answer: D
NEW QUESTION 154
The following part does not belong to the SSL/TSL specification
- A. alert agreement
- B. record protocol
- C. handshake agreement
- D. hello protocol
Answer: D
NEW QUESTION 155
The benefits of using NAT technology for security defense are _____ .
- A. make use NAT after technical problems can be avoided when the two interconnected caused due to the internal network address
- B. make use NAT after art, outsiders can not get information on the internal network
- C. make use NAT technology, the internal and external networks are blocked
- D. make use NAT after technologies, network users access the network service availability affected
Answer: A,B,C,D
NEW QUESTION 156
The following description of QoS jitter is correct.
- A. QoS can create broadband and make the use of broadband more reasonable
- B. do force to avoid network congestion
- C. transfer control IP network traffic
- D. branch support network of real-time business
Answer: B,C,D
NEW QUESTION 157
The following descriptions belong to the handshake layer function of the SSL protocol _______ .
- A. insurance certificate, reliable data transmission
- B. isobutyl the normally turned off SSL connection
- C. Association key used to encrypt the parameter provider
- D. Negative responsible for the establishment, maintenance SSL session
Answer: B,C,D
NEW QUESTION 158
IntServ model has the following features ?
- A. can to a large-scale deployment in the Internet
- B. mention for absolute and accurate QoS guarantee, does not change with network status affected
- C. can to provide end to end QoS service
- D. be to track and record the state of each stream, good scalability
Answer: B,C
NEW QUESTION 159
In the GRE encapsulation of IP over IP , IP uses the protocol number ____ to mark the GRE header.
- A. 47
Answer: A
NEW QUESTION 160
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Pass Your H3CSE-Routing & Switching GB0-391 Exam on Dec 10, 2021 with 468 Questions: https://www.testbraindump.com/GB0-391-exam-prep.html
