Download HCIE-R&S (Written) (Huawei Certified Internetwork Expert-Routing & Switching).H12-261.Prep4Sure.2017-01-22.60q.vcex
| Vendor: | Huawei |
| Exam Code: | H12-261 |
| Exam Name: | HCIE-R&S (Written) (Huawei Certified Internetwork Expert-Routing & Switching) |
| Date: | Jan 22, 2017 |
| File Size: | 195 KB |
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Demo Questions
Question 1
Some vendors set the TPID value in the outer VLAN tag of QinQ packets to the non-protocol value.
To be compatible with these vendors' devices, the TPID value on Huawei switches is adjustable.
Which is the default value of the TPID value on Huawei switches?
- 0x9200
- 0x9100
- 0x8200
- 0x8100
Correct answer: D
Question 2
Which types of interfaces can be configured with selective QinQ? (Select 2 Answers)
- Access interface
- Trunk interface
- Hybrid interface
- dot1q-tunnel interface
Correct answer: BC
Explanation:
Question 3
In a switching network that has been enabled with STP protocol, the priorities of all the switches are the same. The MAC address of switch1 is 00-e0-fc-00-00-40, MAC address of switch2 is 00- e0-fc-00-00-10, MAC address of switch3 is 00-e0-fc-00-00-20, and MAC address of switch4 is 00-e0-fc-00-00-80. Which of the switches will be elected as the Root Bridge?
- Switch1
- Switch2
- Switch3
- Switch4
Correct answer: B
Question 4
A switching network has been enabled with STP protocol. To provide fast access speed to the file server for most of the users, the switch that is directly connected with file server is configured as the root bridge.
- True
- False
Correct answer: A
Question 5
Which of the following statements about the link failure detection in STP protocol is not true?
- When network topology is stable, the Designated Port sends BPDU packet at every Hello Time interval.
- When network topology is stable, BPDU packets will be transmitted periodically.
- When the port does not receive new BPDU within a certain interval, the old configuration BPDU will time out and the link failure can be detected.
- The port sends Configuration BPDU at every Hello Time interval. When the link fails, Configuration BPDU cannot be sent out. As a result, this port can detect the link failure.
Correct answer: D
Explanation:
answer is approved. answer is approved.
Question 6
Which of the following statements about STP is not true?
- STP can manage redundant links.
- STP can block redundant links to eliminate loops
- STP can prevent temporary loss of connectivity
- STP can make LAN switch operate normally in a network with loops
Correct answer: C
Explanation:
confirmed answer. confirmed answer.
Question 7
According to OSI reference model, Layer 2 LAN switch operates at ( ).
- Physical layer
- Data link layer
- IP layer
- Application layer
Correct answer: B
Explanation:
Question 8
According to the STP protocol, a certain field in the BPDU identifies the root switch. That is, if the BPDU sent by a switch contains this field, this switch is considered as the root switch. What is this field?
- Root Identifier
- Root Path Cost
- Bridge Identifier
- Port Identifier
Correct answer: A
Question 9
Which are the two parts in the port identifier of the uplink interface on a non-root switch?
- 1-bit port priority and 1-bit port number
- 1-bit port priority and 2-bit port number
- 2-bit port priority and 1-bit port number
- 2-bit port priority and 2-bit port number
Correct answer: A
Question 10
In the network diagram, which switch will be selected as the root switch?
- SWA
- SWB
- SWC
- None of the above
Correct answer: A
Explanation:
true. true.
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