On a multicast network, in which of the following situations can multicast traffic not be forwarded?
A. The upstream router discards the received PIM Join message
B. On a multi-router egress network, the local router is not a DR
C. PIM is disabled on the RPF interface
D. There are not any RPF route in the router
正解:C
質問 2:
On a Huawei device, when an external route is imported to IS-IS and the tag of the external route is set, the IS-IS metric type does not need to be changed, and the default style is retained.
A. TRUE
B. FALSE
正解:B
質問 3:
A household has opened a 10Mb/s 12Mb/s broadband, and the carrier has increased the use of the camp for the user. The speed can be set at the time of the household. If I am stable, if I We use token bucket technology. Which of the following is the best?
A. cir 10000 pir 12000
B. cir 10000 cbs 12000 pbs 12000
C. cir 10000 cbs 10000 pbs 12000
D. cir 8000 pir 12000
正解:A
質問 4:
There must be no type in the OSPF stub LSA area.
A. Type-7
B. Type-3
C. Type-4
D. Type-5
正解:A,C,D
質問 5:
If there are multiple receiver groups in a broadcast, IGMP-Snooping, manages the switcher on the receiver's switch. When the receiver changes from the switch After receiving the general post-query query group query report, how many recipients should return
A. Only if it is running, all receivers will return to the IGMPv1 Report response message.
B. Only if it is running, all receivers will return to the IGMPV2 Report response message.
C. All recipients will respond to the Report message.
D. When the first recipient of the louder response time is sent, the report is sent, and the other recipients are not sent.
正解:C
質問 6:
Which of the following are found in a basic Network Layer Packet? (Multiple Choice.)
A. Upper Layer Data
B. Path records
C. Network Layer Trailer
D. Network Layer Header
E. Data Link Layer Header
正解:A,C,D
質問 7:
As shown in the figure, the branches and branches use the redundant path to establish the total chain IPSEC VPN Router_B 1 URPF , and the traffic from the branch pair is on at the same time.

Which of the following are correct options? ( ) Multiple choices
A. When the primary channel redundancy IPSEC URPF URPF backup link is used, the function can be enabled on the physical interface.
B. When using the main channel redundancy IPSEC URPF URPF backup link, use the function under the physical interface to build the loose mode.
C. When using multi-channel redundancy IPSEC URPF URPF chain backup, enable the function on the physical interface, you can use the grid mode
D. When using multi-channel redundancy IPSEC tunnel URPF URPF chain backup, enable the function under the interface, you can use the grid mode
正解:B,D
質問 8:
The following is about RADIUS? Which is the correct way?
A. MAC, RADIUS authentication account code does not need to use the name secret, so you cannot use the identity authentication account.
B. RADIUS Portal, Portal, Portal authentication and authentication can not be used. Generally, the server can be used for identity authentication when deployed for authentication.
C. RADIUS supports with and without two access methods.
D. RADIUS protocol authentication, granting separation rights audit.
正解:C
質問 9:
Which of the following statements correctly describe the LDP LSP establishment process?
A. An LSP is established by binding an FEC to a label and advertising the binding relationship to the upstream LSR.
B. When the next hop of an LSR changes due to a change in network topology and liberal mode is used, the LSR can use the previous label sent to a non-optimal next hop to quickly reestablish an LSP. Liberal mode requires more memory and label space than conservative mode.
C. By default, for the same FEC, the label mapping that an LSR receives can only originate at the optimal next hop.
D. In DoD label advertisement mode, an LSR can distribute labels to a specified FEC without having to receive Label Request messages from its upstream device.
正解:A
花清** -
問題集は内容も充実していて、H12-261試験の範囲はしっかり網羅されているという印象です。昨日合格いたしました。お礼言いに来ました。