Huawei H12-261-ENU Real 2022 Braindumps Mock Exam Dumps
H12-261-ENU Exam Questions | Real H12-261-ENU Practice Dumps
NEW QUESTION 190
When you troubleshoot a LAN that has Huawei devices deployed, you find that there are many unicast frames with unknown source MAC addresses in the LAN. What is the greatest harm that many unknown source MAC address unicast frames will cause to the switch?
- A. Consume available MAC address entries in the system
- B. Occupy the memory of cached frames
- C. Occupy TCAM entries
- D. Consume available bandwidth
- E. Increase the power consumption of the power supply
Answer: A
NEW QUESTION 191
If multiple candidate RPs are configured in a certain group of multicasts, which of the following parameters need to be compared between the multiple candidate RPs? (Multiple Choice)
- A. Number of the C-RP interface
- B. IP address of the C-RP interface
- C. Group-wide mask length of the C-RP service matching the group address to which the user joins
- D. C-RP priority
Answer: B,C,D
NEW QUESTION 192
Now there is a network consisting of router R1, router R2, router R3 and router R4. These four routers are interconnected via a LAN network. Basic OSPF is deployed on all four routers. When you execute the command "display ospf peer" on the router R2, the status between router R2 and router R3 is "2way".
So, what conclusion can you draw from this output? (Multiple Choice)
- A. Router R2 is a DR or BDR
- B. There is no full adjacency relationship between router R2 and router R3.
- C. Router R3 is neither a DR, nor a BDR
- D. Router R2 is not DR
- E. Router R4 is DR
Answer: B,C,D
NEW QUESTION 193
Which of the following technologies use tunneling technology to communicate between IPv6 addresses?
- A. NAT64
- B. Dual Stack
- C. 6to4
- D. ISATAP
Answer: C,D
NEW QUESTION 194
As shown in the following scene, which description is true?
- A. No neighbor relationship can be established between R1 and R2.
- B. R1 can ping the interface address of R21 1oopbapk0
- C. R1 has both Level-1 and Level-2 LSDB
- D. R1 has a route to R2 1oopback0 10.0.2.2/32
Answer: D
NEW QUESTION 195
Which of the following options is correct for the assertion mechanism?
- A. In the assertion mechanism, loser shut down the interface connected to the broadcast network.
- B. In the assertion mechanism, winner is responsible for forwarding multicast data to the broadcast network segment.
- C. The size of the IP address will not be used as a condition for election during the election of the winner.
- D. The assertion mechanism is used for the election of the DR.
Answer: B
NEW QUESTION 196
Which of the following description is wrong regarding the inter-domain VPN Option-B solution?
- A. Exchange the outer label of the VPNv4 route between the two ASBRs.
- B. An MP-EBGP neighbor relationship needs to be established between the two ASBRs.
- C. The inter-domain VPN-option-B scheme is not limited by the number of interconnection links between ASBRs.
- D. During the packet forwarding process, exchange the private network LSPs of the VPN on the two ASBRs.
Answer: A
NEW QUESTION 197
Router HW is enabled with OSPF and the role of the router HW is ABR, and abr-surmnary is configured. Which classes of LSA will be aggregated?
- A. Class 5 LSA
- B. Class 4 LSA
- C. Class 1 LSA
- D. Class 3 LSA
- E. Class 2 LSA
Answer: C,D,E
NEW QUESTION 198
Which of the following statement about the VPNv4 address is wrong?
- A. Before the local PE advertises the VPNv4 route learned from the site directly connected to itself to other PEs, it sets the Target attribute for these routes and advertises it as a BGP extended community attribute along with the route.
- B. The VPNv4 address has a total of 12 bytes, including an 8-byte route identifier RD (Route Distinguisher) and a 4- byte IPv4 address prefix.
- C. By default, the PE does not perform vpn-target filtering on the received VPNv4 routes.
- D. When BGP advertises reachable and unreachable VPNv4 routes, it carries the RD attribute.
Answer: C
NEW QUESTION 199
Router R1 runs the 0SPF protocol. Use the display ip routing-table command to view the routing table of the Router R1. Which of the following description is correct about the 0SPF information in the routing table?
- A. In the routing table, the routing entry identified by the "0SPF" identifier can only pass the LSA of class 1.
- B. In the routing table, the routing entries identified by the "0_ASE" identifier can only be learned through routing.
- C. In the routing table, the routing entries identified by the OSPF identifier can be learned through 1/2/3/5 LSAs.
- D. In the routing table, the routing entries identified by the "0SPF" identifier can only be learned through the Type 3 LSA.
Answer: B
NEW QUESTION 200
In RSTP, which port can provide the backup path to reach the root node of the spanning tree? What status is the port in?
- A. Designated port and Listening status
- B. Alternate port and Discarding status
- C. Alternate port and Learning status
- D. Root port and Listening status
- E. Alternate port and Forwarding status
Answer: B
NEW QUESTION 201
As shown in the figure, there are two IPv6 networks that can access the IPv4 network. At the same time, an IPSEC tunnel needs to be established between the two IPv6 networks for communication. Which of the following encapsulation modes can meet the above requirements?
- A. None of the above options
- B. ESP+ tunnel mode
- C. AH+ tunnel mode
- D. AH+ transmission mode
Answer: B
NEW QUESTION 202
In the ISIS broadcast network database synchronization process, the following statement which is correct?
- A. R2 acts as DIS, and the Hello time is three times than the ordinary router.
- B. R2 acts as DIS and periodically sends CSNP.
- C. R2 acts as DIS will not receive PSNP requests for other routes.
- D. R1 and R3 maintain database consistency by periodically sending PSNP requests.
Answer: B
NEW QUESTION 203
The default type of router in ISIS is Level-2.
- A. False
- B. True
Answer: A
NEW QUESTION 204
An engineer performs an import operation on an OSPF router in a company network. The following statement about the introduction of a route LSA, which is correct? (Multiple Choice)
- A. Use link state id and advertising router to uniquely identify an LSA
- B. link state id is set to the destination network segment address
- C. The Advertising Route is set to the router-id of the ASBR.
- D. netmask is set to 0
Answer: B,C
NEW QUESTION 205
Which of the following description about the CHAP authentication function in the PPP protocol is correct? (Multiple Choice)
- A. If the authenticator does not configure a username, the password cannot be configured on the authenticated interface.
- B. Calculate a Hash value by the MD5 algorithm using the authentication sequence ID, random number and key
- C. Three-message interactive authentication is required, and the username is transmitted only on the network without transmitting the password.
- D. The user name must be configured under the authenticated interface of CHAP authentication.
Answer: B,C,D
NEW QUESTION 206
Which of the following advanced features does BGP EVPN support?
- A. VXLAN Qos
- B. VRRP over VXLAN
- C. ARP broadcast suppression
- D. Multi-live gateway
Answer: C,D
NEW QUESTION 207
In the lab network, the network is built as follows. SW1 is the default configuration and SW2 disables STP. Which of the following description about scenario is correct?
- A. G0/0/2 of sw1 enters Discarding state
- B. G0/0/1 of sw2 enters Discarding state
- C. G0/0/1 of SW1 enters Discarding state
- D. G0/0/2 of sw2 enters Discarding state
- E. No interface is blocked
Answer: E
NEW QUESTION 208
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