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Share some HCIE-R&S H12-261-ENU exam questions and answers below.
You have two routers run BGP connected to different ISP. You want to affect the Internet into your network traffic, but your company is prohibited to use BGP communities.
The best way to achieve the aforementioned requirements?
A. the router's cost adjustment
B. use MED
C. increase the router PreVal
D. reduce the router's Local Preference
E. use AS-path additive
F. use Metrics
Answer: E

What are the key component of NAC?
A. communication agent
B. NAC equipment
C. access terminal
D. policy server
Answer: ABD

In RIPng network, hope the router can publish a default route to the entire network, which of the following configuration is True?
A. [Huawei] ripng 1
[Huawei-ripng-1] import-route static cost 2
[Huawei-ripng-1] quit
[Huawei] ipv6 route-static:: 0 NULL0
B. [Huawei] interface GigabitEthernet0/0/1
[Huawei-GigabitEthernet0/0/1] ipv6 enable
[Huawei-GigabitEthernet0/0/1] ipv6 address 2001 £º 12::1/64
[Huawei-GigabitEthernet0/0/1] ripng 1 enable
[Huawei-GigabitEthernet0/0/1] ripng default-route originate
[Huawei-GigabitEthernet0/0/1] quit
C. [Huawei] ripng 1
[Huawei-ripng-1] import-route static cost 2
[Huawei-ripng-1] quit
[Huawei] ipv6 route-static:: 0 2001:19::9
D. [Huawei] ripng 1
[Huawei-ripng-1] ripng default-route originate
[Huawei-ripng-1] quit
Answer: B

You want to set the DSCP value of VoIP traffic in HW network device as EF.
According to distinguish service model RFC, flow mark EF should be set to:
A. DSCP is set as decimal 36
B. IP ToS is set as 0xEF
C. IP Experimental ECN
D. DSCP is set as decimal 5
E. Bit Stream 101110
Answer: E

Recently the company network often attacked by ARP, in order to curb ARP attacks, which of the following technique can we use? (Multiple choice)
A. DAI
B. DHCP snooping
C. uRPF
D. static MAC address binding
E. Port isolation
Answer: ABE

Which of the follwing description about BSR/RP mechanism is true? (Multiple choice)
A. PIM-SM domain can have multiple C-BSR, but can only elect a BSR
B. BSR through the received C-RP data packet to collect C-RP information
C. BSR by flooding Bootstrap packets advertised BSR information and C-RP information to all router in PIM-SM domain
D. a C-BSR also can collect C-RP information through received C-RP data packets
Answer: ABC

HW users are very much transmission via TFTP file.
What protocol is relied on by TFTP for transmission?
A. ICMP and UDP
B. IP and TCP
C. NFS
D. FTP
E. UDP
Answer: E

The SPF algorithm, which of the following description is correct? (Multiple choice)
A. SPF algorithm also called Djkstra algorithm
B. SPF algorithm only uses in the first time to calculate the shortest path tree
C. When router calculate the shortest path tree, with itself as the root to build SPF tree
D. when router calculate the shortest path tree, with its target segment as the root to build SPF tree
E. HW router default OSPF reference bandwidth is 10^9/BW
Answer: ABC

When troubleshooting in a local area network, you notice that there are a large number of frame alignment False, FCSFalse and Lag of conflict.
what is the possible reason to cause this problem?
A. switch and terminal by 10/100/1000Base-T Ethernet link connected, and the working mode of the switch and terminal is half duplex
B. in most of the environment all have such False
C. working mode on 1000Base-LX/LH link don't match
D. Working mode on 10/100/1000Base-T Ethernet link don't match
Answer: D

Which of the following configurations are true OSPFv3 routing aggregation configuration ? ( Multiple choice)
A. [Huawei] ospfv3 1
[Huawei-ospfv3-1] abr-summary fc00:0:0:: 48 cost 400
B. [Huawei] ospfv31
[Huawei-ospfv3-1] asbr-summary fc00:0:0:: 48 cost 20 tag 100
C. [Huawei] ospfv3 1
[Huawei-ospfv3-1] area 1
[Huawei-ospfv3-1-area-0.0.0.1] asbr-summary fc00:0:0:: 48 cost 20 tag 100
D. [Huawei] ospfv3 1
[Huawei-ospfv3-1] area 1
[Huawei-ospfv3-1-area-0.0.0.1] abr-summary fc00:0:0:: 48 cost 400
E. [Huawei] interface gigabitethernet 1/0/0
[Huawei-GigabitEthernetl/0/0] asbr-summary fc00:0:0:: 48 cost 20
F. [Huawei] interface gigabitethernet 1/0/0
[Huawei-GigabitEthernetl/0/0] abr-summary fc00:0:0:: 48 cost 400
Answer: BD

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