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Prepare GB0-391 Question Answers Free Update With 100% Exam Passing Guarantee [2022]
NEW QUESTION 60
The advantages of the hierarchical network model include ___ .( Choose one or more )
- A. by strong network scalability
- B. provide high network throughput
- C. drop low-end delay
- D. will be to maintain the network of
Answer: A,D
NEW QUESTION 61
Use the displa ike peer command to display the following information on the device, and you can know from this information ____ .
KE Peer: 123
exchange mode: aggressive on phase 1
pre-shared-ke simple 123
peer id tpe: name
peer ip address: 10.2.1.1
local ip address:
peer name: aaa
nat traversal: enable
dpd:
- A. The name of the local security gateway during IKE negotiation is aaa
- B. During the first phase of IKE negotiation, the initiator sends its name to the peer to identify its identity
- C. is not configured for the local security gateway lP address, IKE local gateway negotiation lP address of the interface will use the security policy of the main lP address
- D. In the IKE negotiation negotiation mode in phase master mode
Answer: B,C
NEW QUESTION 62
The three routers are shown in the figure .A GRE tunnel is created between Routerl and RouLer3 .The configuration commands for the three routers are :
Routerl:
[Router1]interface Serial 0/2/0
[Router1-Serial0/2/0]ip address 10.1.1.1 24
ERouter1]interface loopback 0
[Router1-LoopBack0]ip addre ss 1.1.1.1 32
[Router1]interface Tunnel 0
[Router1-Tunnel0]source 10.1.1.1
[Router1-Tunnel0]destination 20.1.1.2
[Routerl-Tunnel0]ip address 100.1.1.1 24
[Router1]ospf
IRouter1-ospf-1]area 0
IRouter1-ospf-1-area-0.0.0.0]network 10.1.1.1 0.0.0.255
[Router1]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-Serial0/2/0]ip address 20.1.1.1 24
[Router2]ospf
IRouter1-ospf-1]area 0
IRouter1-ospf-1-area-0.0.0.0]network 10.1.1.2 0.0.0.255
IRouter1-ospf-1-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-LoopBack0]ip address 3.3.3.3 32
[Router3]interface Tunnel 0
[Router3-Tunnel0]source 20.1.1.2
[Router3-Tunnel0]destination 1 0.1.1.1
[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 Router 1 to check the connectivity, and 100% receive ICMP reply packets.
In the above process, the following description of the various routers to process packets of data, is correct ____ .( Choose one or more )
- A. Router 1 performs GRE encapsulation of ICMP Echo Request packets
- B. Router2 performs GRE decapsulation of ICMP Echo Request packets
- C. Router2 performs lP packet forwarding
- D. Router3 performs GRE encapsulation of ICMP Echo Reply packets
Answer: A,C,D
NEW QUESTION 63
ASPF anti- firewall with features are ______ .
- A. Root according invasive application layer connection based protocol state dynamically determine whether a packet is allowed to pass through the firewall to the internal network, so as to prevent malicious
- B. can be detected transmission protocol information, it can be the source and destination addresses and ports, decided to TCP or UDP whether the packet into the internal network through a firewall.
- C. mention for untrusted sites of the Java Blocking ( the Java blocking ) function
- D. by a strong session logging function
Answer: A,B,C,D
NEW QUESTION 64
The following information about H.323 describes terminal of the error is ____ .
- A. P pass H.323 terminals may not support the video feature
- B. & Poor pass H.323 terminal may not support fax functionality
- C. P through PSTN telephone is a standard H.323 terminal
- D. even connected to the PSTN telephone network fax machine is a standard H.323 terminal equipment
Answer: C,D
NEW QUESTION 65
About L2TP VPN and GRE VPN are correct is ____ .( Choose one or more )
- A. All belong to L3 VPN ( Laer 3 VPN , Layer 3 VPN ) technology
- B. all point to point VPN
- C. Both support tunnel verification
- D. are based lP package
Answer: C
NEW QUESTION 66
As shown in the figure, when HostA accesses HostB , which device is the most downstream device ?
- A. LSR3
- B. LSR2
- C. is not determined
- D. LSR1
Answer: A
NEW QUESTION 67
Which of the following messages is used by the called party to indicate to the calling party that the call request is being processed and will not receive other call setup information for the call request ?
- A. COnnecting
- B. Call-proceeding
- C. Progress
- D. Alerting
Answer: B
NEW QUESTION 68
SIP UA calls the called party through the proxy server.
- A. In addition to the external location request message, the calling UA other messages do not need to be forwarded through a proxy server
- B. Lord called UA all messages are forwarded through a proxy server
- C. to the not right
- D. behalf of the proxy server to help get the called UA after position, calling UA directly to the called UA initiates a call
Answer: B
NEW QUESTION 69
In L2TP networking, what are the authentication methods for users by LNS?
- A. IPCP renegotiation
- B. Strong system CHAP authentication
- C. on behalf of the agent authentication
- D. LCP renegotiation
Answer: B,C,D
NEW QUESTION 70
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 71
Among the packets encapsulated by the GRE protocol, the negotiation protocol is - protocol, and the encapsulation order of the packet from the link layer to the payload data is
- A. link path layer -> GRE -> IPX -> IP -> payload data
- B. link path layer -> IPX -> IP -> payload data
- C. link path layer -> GRE -> IP -> IPX -> payload data
- D. link path layer -> IP -> IPX -> payload data
Answer: D
NEW QUESTION 72
Among the broadband access transmission media, the highest achievable transmission rate is ____ .
- A. optical fiber
- B. Copper quality UTP
- C. electric power line
- D. no radio waves
- E. same coaxial cable
Answer: A
NEW QUESTION 73
MPLS labels a total of ______bit , which Label label value portion accounted _______bit .
- A. 32 20
- B. 48 24
- C. 32 24
- D. 48 20
Answer: A
NEW QUESTION 74
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 2.4Mbps
- B. Head of port 1000 of TCP packet forwarding rate is 4Mbps
- C. Head of port 1003 of TCP packet forwarding rate is 0
- D. Head of the port 1002 of TCP packet forwarding rate is 2.4Mbps
- E. Head of port 1001 of TCP packet forwarding rate is 4Mbps
Answer: B,C,E
NEW QUESTION 75
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