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NEW QUESTION 108
Which of the following description of the configuration on this switch is correct? (Multiple choice)
- A. First, you need to create a DHCP server group and add a DHCP server to the server group
- B. Specify the DHCP server group as dhcpgroup1 for the VLAN100 interface
- C. To configure the DHCP server and DHCP relay, DHCP must be enabled globally
- D. The VANIF100 interface will send the received DHCP messages to the external DHCP Server through the relay
Answer: A,B,C,D
NEW QUESTION 109
Network administrator A wants to use the IP Prefix List to match a specific route entry. Which of the following routes will Matched by the IIP Prefix List in the figure?
- A. 10.0.0.1/30
- B. 10.0.2.0/24
- C. 10.0.0.0/24
- D. 10.0.1.0/24
Answer: A,C
NEW QUESTION 110
After the cutover acceptance is completeD. what work still needs to be performed in the closing stage?
- A. data transfer
- B. field defense
- C. Transfer training
- D. Acceptance summary
Answer: A,B,C,D
NEW QUESTION 111
A park deployed IPv6 for business testing. There are 4 routers (R1, 22, R3 and R4) in this network, running OSPFv3 to realize the interconnection of IPv6 network. There is a new router R5 that needs to be connected to the network for testing. An engineer introduced a direct route in the OSPFvV3 process of R4 to realize that the devices in the campus network can access the GE0/0/1 port address of R5. Which of the following descriptions of the scene are correct? (Multiple choice)
- A. R4 will generate an IPv6 routing prefix introduced by Type5 LSA description
- B. R2 will generate a Type4 LSA and only flood in Area 0
- C. R4 will generate a Type5 LSA and only flood in Area 1
- D. R2 will generate a Type4 LSA describing the Router ID of R4
Answer: A,B,D
NEW QUESTION 112
As shown in the figure, an engineer uses 4 routers to test branch network interoperability. Among them, R1, R2, and R3 in branch 1 deploy OSPF to implement network interoperability. R2, R3, and R4 in branch 2 deploy IS-S to implement network interoperability. Now the engineer wants to implement R1 to access the loopback interface address of R4. Which of the following operations can meet this requirement?
- A. only atR2ofOSPFDuring the process, the default route is advertised
- B. only atR2ofIS-ISDuring the process, the default route is advertised
- C. existR2ofOSFFprocess neutralizationIS-ISDuring the process, the default route is advertised separately
- D. No configuration required
Answer: C
NEW QUESTION 113
Regarding the description of the encapsulation format of labels in MPLS, the correct one is
- A. MPLSThe total length of a single label is4bytes(32bits)
- B. For Ethernet,PPPpacket, the tag stack is like 'shim*-between the L2 header and the data: yesVLAN tagTime,MPLShead on the ether head withVLAN tagbetween
- C. in the labelTTLfields andIPgroupedTTL( Time To Live.,time-to-live) is similar in meaning and also has the effect of preventing loops
- D. in the labelSfield:lbit,Used to identify whether the label is the bottom label of the stack, the value is1is indicated as the penultimate layer label
Answer: A,C
NEW QUESTION 114
What is wrong with this configuration description is:
[Huawei]dhcp enable
[Huaweijinte GigabitEthernet 0/0/1 [Huawei-GigabitEthernet0/0/1 ]dhcp option82 insert en [Huawei-GigabitEthernet0/0/1 ]dhcp snooping enable [Huawei-GigabitEthernet0/0/1]dhcp snooping trusted
- A. configureGigabitEthernetO/0/lThe interface is a trusted interface
- B. ifGigabitEthemnetOIO/1received by the interfaceDHCPIn the request message, there is noOption82of SutOptioninformation, the device will generateOption82,and insert it into the message
- C. turn onDHCP Snoopingconfiguration can be used to preventARPspoofing attack
- D. turn onDHCP Snoopingconfiguration can be used to preventDHCP ServerCounterfeiter Attack
Answer: C
NEW QUESTION 115
BFD session down will cause the direct link to fail.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 116
From this figure, we can conclude that
- A. R4andee8c.aOc2.baf3establishedIPv4,IPv6ofIS-ISNeighbor
- B. R4not anyIS-ISNeighbor
- C. R4andee8C. aOe2.baf3only establishedIPv6ofIS-ISNeighbor
- D. R4andee8c.aOc2.bat3only establishedIPv4ofIS-ISNeighbor
Answer: A
NEW QUESTION 117
In the intra-domain MPLS VPN network, when a data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Which of the following description is wrong about the two layers of labels? (Multiple choice)
- A. The outer label of MPLS VPN is called the private network label. The inner label is called the public network label.
- B. The outer label of MPLS VPN is allocated by the LDP protocol or statically, and the inner label is allocated by the MP-BGP neighbor at the correct end.
- C. By default, the outer label is ejected before the packet is forwarded to the last-hop device
- D. The outer label is used to correctly send the data packet to the corresponding VPN on the PE device
Answer: A,D
NEW QUESTION 118
Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure.
Which router can the route entry 10.10.10.0/24 advertised by R1 be delivered to?
- A. R3
- B. R2
- C. R1
- D. R4
Answer: A
NEW QUESTION 119
As shown in the figure, the network has caused a loop because STP is not enabled. Which of the following phenomena may be caused? (Multiple choice)
- A. The device CPU usage is too high
- B. MAC address table flapping
- C. The device will have a loop alarm
- D. A large number of broadcasts can be received on the Host
Answer: A,B,C,D
NEW QUESTION 120
In BGPIMPLS IP VPN, if the OSPF protocol is used between PEs and CEs to exchange routing information, the domain identifier (Domain ID) is used to distinguish whether the incoming routes in the VPI instance come from the same OSPF domain.
- A. True
- B. False
Answer: A
NEW QUESTION 121
Ethernet is a broadcast-enabled network, and once there are loops in the network, this simple factory broadcast mechanism can have disastrous consequences. Which of the following phenomena may be caused by loops?
- A. CPUOccupancy exceeds70%
- B. pass throughpingSerious packet loss during network test with command
- C. use on devicedisplay interfaceWhen commanding to view interface statistics, it is found that the interface receives a large number of broadcast packets
- D. The device cannot log in remotely
Answer: A,B,C,D
NEW QUESTION 122
. OSPFv2 is an IGP running on an IIPv4 network. OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, OSFv3 has similar LSA, but the function is slightly different. The following is the description of the LSA function of OSPFv3. Please drag the LSA to the correct LSA function column.
Answer:
Explanation:
NEW QUESTION 123
Which of the following statements about the freeway of LDP label retention is correct? (Multiple choice)
- A. Save memory and label space
- B. Keep all labels distributed by neighbors
- C. Only keep labels from next-hop neighbors, discard all labels sent by non-next-hop neighbors
- D. Need more memory and label space
Answer: B,D
NEW QUESTION 124
Ethernet is a network that supports broadcasting, and once there is a loop in the network, this simple broadcasting mechanism can cause catastrophic consequences. Which of the following phenomena may be caused by loops
- A. CPUOccupancy exceeds70%
- B. pass throughPINGSerious packet loss during network test with command
- C. use on the deviceDISPLAY INTERFA, CEcommand to view interface statistics, it is found that the interface receives a large number of
- D. The device cannot log in remotely
Answer: A,B,C,D
Explanation:
broadcast message
NEW QUESTION 125
A campus has deployed IPv6 for service testing. There are 4 routers (R1, 22, R3 and R4) in this network, running 0SPFV3 to realize the interconnection of IPv6 network. A new router R5 needs to be connected to the network for testing. An engineer introduces a direct route in the OSPFVV3 process of R4 so that devices in the campus network can access the GE0/0/1 port address of R5. Which of the following statements about the scene is true of?
- A. R4will generate aType5 LSAdescribe bowIenteredIPv6routing prefix
- B. R2will generate aType4 LSAdescribeR4ofRouter ID
- C. R4will generate aType5 LSAonly inArea 1internal flooding
- D. R2will generate aType4 LSAonly inArea 0internal flooding
Answer: A,B,D
NEW QUESTION 126
Which of the following are static information coke analysis?
- A. Equipment type
- B. Interface Type
- C. License
- D. Packet loss rate
Answer: A,B,C
NEW QUESTION 127
By default, the Domain ID of each OSPF process running on the router is the same as the process number of the process, which can be modified by the domain-id command under the process
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 128
Which of the following regarding the configuration description is wrong?
- A. Enabling the DHCP Snooping configuration can be used to prevent ARP spoofing attacks
- B. If the DHCP request message received by the GigabitEthemnet0/0/1 interface does not contain the SutOption information of Option82, the device will generate Option82 and insert it into the message
- C. Configure GigabitEthernet0/0/1 as a trusted interface
- D. Enabling the DHCP Snooping configuration can be used to prevent DHCP Server counterfeiters from attacking
Answer: A
NEW QUESTION 129
Link LSAs of OSPFv3 are propagated throughout the area.
- A. right
- B. wrong
Answer: B
NEW QUESTION 130
by executing___________The command can completely isolate the second and third layer users of different ports on the same LAN and cannot communicate. (Please use English and lowercase letters to complete the command, and the command cannot be abbreviated)
Answer:
Explanation:
portisolateenable
NEW QUESTION 131
A network engineer outputs the following information when troubleshooting OSPF. Based on this, determine which reason causes the adjacency relationship to fail to be established normally?
- A. The IP address mask of the interface is not-consistent
- B. The interval for sending Hello messages is not-consistent
- C. Regional type is not-consistent
- D. Authentication password is not-consistent
Answer: A
NEW QUESTION 132
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