H12-261_V3.0-ENU exam questions for practice in 2022 Updated 485 Questions
Updated Jan-2022 Premium H12-261_V3.0-ENU Exam Engine pdf - Download Free Updated 485 Questions
NEW QUESTION 99
If the value of the Option field in the 0SPFv3 Hello packet sent by the GigabitEthermet 0/0/0 interface on the router is 0x000013, which of the following descriptions are correct? (Multiple Choice)
- A. Gigabit/thernet0/0/0 port of Router A will participate in IPv6 route calculation.
- B. GigabitEthernct0/0/0 port of Router A belongs to the NSSA area.
- C. Router A supports AS-External-LSA flooding
- D. The router is an OSPFv3 device with forwarding capability.
Answer: A,C,D
NEW QUESTION 100
What kind of packets can Huawei equipment perform traffic suppression for? (Multiple Choice)
- A. Known unicast
- B. Unknown unicast
- C. Broadcast
- D. Multicast
Answer: B,C,D
NEW QUESTION 101
Run the display mpls Isp command on the router to view the LSP information. The command output is as follows.
Which of the following is correct?
- A. When sending a packet with the destination P address of 2.2.2.2, the router sends it directly without adding any label.
- B. After the router receives the data packet with the label 1024, it changes to the label 1027 and then sends the data packet.
- C. When sending a packet with a destination address of 3.3.3.3, the router will add the label 1026 to the packet before sending it.
- D. When sending a packet with the destination IP address of 4.4.4.4, the router sends it directly without adding any labels.
Answer: A
NEW QUESTION 102
A newly deployed HW router is configured for Weighted Random Early Discard (WRED) on the HW network.
WRED has which of the following characteristics? (Multiple Choice)
- A. Global Synchronization is avoided by selectively dropping packets from multiple TCP flows.
- B. For packets of different priorities, WRED can set different packet drop thresholds and packet loss ratios.
- C. When the minimum threshold is crossed, WRED begins dropping all incoming packets (tail-drop).
- D. Low bandwidth flows are experiencing packet drop at a higher rate than higher bandwidth flows.
Answer: A,B
NEW QUESTION 103
Which of the following categories can ACL be divided into?
- A. Layer 2 ACL
- B. User-defined ACL
- C. Basic ACL
- D. Advanced ACL
Answer: A,B,C,D
NEW QUESTION 104
Which of the following statements about VXLAN messages is correct? (Multiple choice)
- A. The outer destination IP address is the IP address of the remote VTEP of the VXLAN tunnel.
- B. The source UDP port number is 4789
- C. Destination UDP port number is 4789
- D. VNI has 24 bits and is used to distinguish VLAN segments.
Answer: A,C,D
NEW QUESTION 105
The topology of a multi-protocol network is shown in the figure. Please study the topology carefully. The router (in Area1) imports the routes learned through BGP into the OSPF process. Then, what types of LSAs will R3 generate to advertise to area 0?
- A. Type 5 LSA
- B. Type 1 LSA
- C. Type 4 LSA
- D. Class 2 LAS
- E. Type 7 LSA
Answer: A
NEW QUESTION 106
Enable SSM on the entire IP multicast network.
Which of the following statements about SSM are correct? (Multiple Choice)
- A. No RP is required.
- B. Only RPT is used for SSM.
- C. SSM is suitable for one-to-many application
- D. SSM is recommended when there are multiple sources on the network and multicast routing is simple.
- E. Only SPT is used for SSM.
Answer: A,C,E
NEW QUESTION 107
During the evolution from IPv4 network to IPv6, some transition technologies have emerged. Which of the following are common types of transition technologies? (Multiple questions)
- A. Compatible technology
- B. Dual stack technology
- C. Conversion technology
- D. Tunnel technology
Answer: A,B,C,D
NEW QUESTION 108
Which type of address prefix in the following options indicates that the address is globally unique and globally routable among Pv6 unicast addresses, similar to the public network address in P4?
- A. ::1/128
- B. FE80::/10
- C. 2000::/3
- D. FC00::/7
Answer: C
NEW QUESTION 109
The Next Header field information only exists in the IPv6 message and is used to indicate whether there is an extended header in IPv6.
- A. False
- B. True
Answer: A
NEW QUESTION 110
Which of the following descriptions about VRRP load sharing is correct? (Multiple Choice)
- A. When configuring the priority, make sure that the same router acts as the master in the three VRRP backup groups
- B. When deploying load sharing, the hosts on the same local area network are required to configure the IP addresses of different virtual routers as the default gateway addresses
- C. Multiple VRRP backup groups can be created on one interface of a router. The route can be used as the master of a VRRP backup group and the backup of its VRRP backup group.
- D. VRRP load sharing requires at least two virtual machine routers to provide forwarding services at the same time
Answer: B,C,D
NEW QUESTION 111
In an MPLS VPN network, when a data packet enters the public and is forwarded, it will be encapsulated with two layers of MPLS labels. Which of the following options describes the processing procedure of the data packet correctly? (Multiple Choice)
- A. The Egress PE device receives untagged IP packets
- B. The outer label of the packet received by the penultimate hop device is 3
- C. The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device
- D. The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label
Answer: C,D
NEW QUESTION 112
Which is wrong about the EVPN Type 5 class routing?
- A. The IP Prefix field can carry either the host IP address or the network segment address.
- B. Type 5 routing carries Layer 3 VNI.
- C. Type 5 routing carries both Layer 2 VNI and Layer 3 VNI
- D. Type 5 is an IP prefix route.
Answer: C
NEW QUESTION 113
The following topological diagrams are available, which of the following statements are correct? (Multiple Choice)
- A. There is a route with the destination network segment 10.0.2.2/32 on R1
- B. There is no route with the destination network segment 10.0.3.3/32 on R1
- C. There is a route with the destination network segment 10.0.3.3/32 on R1
- D. There is no route with the destination network segment 10.0.2.2/32 on R1
Answer: A,B
NEW QUESTION 114
If the host HW1 in the HW device network wants to join a video conference, what does the host do?
- A. Sending an IGMPv2 membership report through multicast on the local network, and the multicast address carried in the IGMPv2 membership report is the joined multicast address.
- B. Send IGMPv2 membership report unicast to the default router on the local network.
- C. Send the IGMPv2 membership report through multicast on the local network. The destination multicast address sent by the IGMPv2 membership report is "all PIM routers" 224.0.0.2 multicast address.
- D. Send a unicast IGMPv2 membership report to the RP
Answer: A
NEW QUESTION 115
Which of the following description on BCP properties is correct?
- A. A route can only have one community attribute value.
- B. When BGP Speaker advertises routes learned from EBCP peers to IBGP peers, it does not change the next hop attribute of the routing information.
- C. The AS number of the neighboring AS is arranged at the far right of the AS_Path list in the BGP routing entry.
- D. Local_Pref is only valid between EBGP peers and is not advertised to third-party ASs.
Answer: B
NEW QUESTION 116
Man-in-the-middle attacks or IP/MAC spoofing attacks can cause information leakage and other hazards, and are more common in intranets.
In order to prevent man-in-the-middle attacks or IP/MAC spoofing attacks, what configuration methods can be adopted?
- A. Limit the maximum number of MAC addresses that can be learned on the switch interface
- B. Enable DHCP Snooping to check the CHAD DR field in the DHCP REQUEST message
- C. Configure the linkage between DHCP Snooping and DAI or IPSG on the switch
- D. Configure Trusted/Untrusted interface
Answer: C
NEW QUESTION 117
VXLAN uses BGP EVPN to establish a tunnel. What kind of packets are used?
- A. Type5
- B. Type3
- C. Type1
- D. Type2
- E. Type4
Answer: B
NEW QUESTION 118
The network administrator is going to use the 6to4 automatic tunnel to carry IPv6 data on the IPv4 network. The IPv4 address of the router interface is 138.14.85.210. So the corresponding tunnel address is 2001:8a0e:55d2:1:230:65ff:fe2:9a6
- A. False
- B. True
Answer: A
NEW QUESTION 119
What message will be sent to the Agent when running NMS (Network Management Station) of SNMPV1?
- A. Get, Set, Getnext and GetBulk
- B. Get, Set and GetBulk
- C. Trap, Get and Set
- D. Trap only
- E. Get, Set and Getnext
Answer: E
NEW QUESTION 120
As shown in the figure, SWA and SWB run the RSTP protocol, and Cost of Path has not been modified to keep the default. Which of the following statements is correct?
- A. SWB will become the root bridge
- B. GE 0/0/1 on SWB is an Alternative port
- C. GE 0/0/2 on SWB is an Alternative port
- D. GE 0/0/1 on SWA is the backup port
Answer: C
NEW QUESTION 121
The following is about the LDP protocol session establishment process, which is the correct description? (Multiple choice)
- A. The party with the larger transmission address acts as the active party and initiates the establishment of TCP connection.
- B. The Hello message discovered by the LDP neighbor uses TCP packets. The destination address is the multicast address 224.0.0.2.
- C. After the TCP connection is successfully established, the active party sends an initialization message to negotiate the parameters related to the LDP session.
- D. After both parties receive the Keepalive message from the peer, the LDP session is established successfully.
Answer: A,C,D
NEW QUESTION 122
Which of the following statements about OSPF route filtering is incorrect?
- A. Based on the link state database. When calculating the route, use the filter-policy import command. This filtering method only affects the route addition in the routing table, and has no effect on the OSPF link state database
- B. In the NSSA area, the filtering for the import and communication of external routes can be done on the ASBR or on the ABR.
- C. Backbone interface filtering LSA. You can filter in and out directions. All LSAs except Grace LSA
- D. The filtering for the three types of LSAs needs to be configured on the ABR between OSPF areas
Answer: C
NEW QUESTION 123
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