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H12-261-ENU HCIE-R&S exam dumps
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Expert-Routing & Switching)
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HCIE-R&S (Written) (Huawei Certified Internetwork
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1. In the MPLS VPN network, some devices maintain VPN routing information
and the private information to ensure it can forward VPN packets. These
devices not only need to run routing protocol but also need to run the MP -BGP
and MPLS protocols. What type are these devices?
A. CE
B. PE
C. P
D. Host
Answer: B
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2. How to deal with BPDU by 820.1w and 802.1d?
A. 802.1w bridge just forward BPDU package received from the root bridge
B. 802.1d bridge does not forward BPDU package
C. 802.1d bridge just forward BPDU package received from the root bridge
D. 802.1w bridge does not forward BPDU package
Answer: C
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3. What are the differences between the traffic regulation and traffic shaping?
(Multiple Choice)
A. for traffic shaping, the router will cache the excess packets until bandwidth
available again
B. for traffic regulation, can adjust the cache for more than CIR traffic area
usage
C. for traffic shaping, can adjust the cache for more than CIR traffic area usage
D. using plastic traffic in the entrance directio n, in export direction using the
traffic regulation
E. traffic regulation using the token bucket algorithm, traffic shaping the SPD
algorithm
Answer: AC
4. In TCP header information, which control position will make the receiver
reset the TCP connection?
A. SND
B. ACK
C. CLR
D. RST
E. PSH
F. SYN
Answer: D
5. In the VLAN (802.1Q) data encapsulation the number of showing the priority
field is six in total.
A. True
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B. False
Answer: B
6. In BGP, what is the common learning BGP routing methods? (Multiple choice)
A. introduce direct route
B. introduce static routes
C. introduce other AS's BGP routers
D. receiving neighbor routes information
Answer: ABD
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7. Which AS_PATH can Command ip as-path-filter 1 permit ^12. *74$ be
matched to?
A. AS_PATH (321 12 2374)
B. AS_PATH (123 621 743 2374)
C. AS_PATH (125 328 74 23)
D. AS_PATH (32 1274 23)
Answer: B
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8. About the description of BGP reflector, which is correct? (Multiple choice)
A. in the case of without routing reflector, IBGP neighbor relations need to be
fully connected. The introduction of routing reflector can lower demand on the
Internet
B. routing reflector can notify all clients of the routers that it learns from one
client.
C. routing reflector can notify all client and non -client of the routers that it
learns from one client
D. routing reflector can notify all client and non -client of the routers that it
learns from IBGP neighbors
Answer: ABC
9. MPLS BGP VPN is L3 VPN technology and it is used to provide VPN
solutions (PPVPN).
What is the basic components of MPLS BGP VPN?
A. CE and P
B. PE, P and CE
C. P and PE
D. SP
Answer: B
10. In HW multicast network, the device needs to send a message SSM.
So what is multicast address range that SSM reserves?
A. 232.0.0.0-232.0.0.255
B. 233.0.0.0-233.255.255.255
C. 232.0.0.0-232.255.255.255
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D. 239.0.0.0-239.255.255.255
Answer: C
11. Regular expressions can be used for Community-filter and AS-path-filter to
define attribute types for route filtering.
A. True
B. False
Answer: A
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12. There are two gateway router providing the service of connecting to
external networks for a host in LAN network. What kind of technology should
use on the two redundant router so that make them as the host 's default
gateway of the LAM network?
A. DHCP
B. RIP
C. OSPF
D. VRRP
E. BOOTP
Answer: D
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13. What do we usually call for the device in MPLS BGP VPN domain? (Multiple
choice)
A. P
B. CPE
C. PE
D. User router
Answer: AC
14. The host HW1 in the HW device network wants to join a video conference,
then what should the host do?
A. Unicast IGMPv2 membership report to the local network default router
B. In the local network sending IGMPv2 membership reports through multicast,
and in IGMPv2 membership report, the carried multicast address is what the
expected multicast address
C. sends a unicast IGMPv2 membership reports to RP
D. In the local network send IGMPv2 membership reports through multicast, the
sending destination multicast address of the IGMPv2 membership report is "all
PIM routers" 224.0.0.2 multicast address
Answer: B
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