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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q116-Q121):

NEW QUESTION # 116
Which of the following statements about the forwarding plane of a switch is false?

A. Can encapsulate and decapsulate packets.
B. Can collect packet statistics.
C. Provides high-speed and non-blocking data channels.
D. Consists of main control boards and interface boards.

Answer: D

Explanation:
The forwarding plane of a switch consists of data forwarding hardware, such as line cards or forwarding engines, and is responsible for tasks like encapsulating/decapsulating packets, providing high-speed data channels, and collecting packet statistics. However, main control boards are part of the control plane, not the forwarding plane. This distinction ensures a separation of data forwarding and control functionalities .

NEW QUESTION # 117
There are two BFD operating modes. In_______mode, the local end sends BFD Control packets at specified intervals, and the remote end checks whether the local end periodically sends BFD Control packets. (Use lowercase letters.)

Answer:

Explanation:
asynchronous
Explanation:
In asynchronous mode, the local device sends BFD control packets at predefined intervals, and the remote device monitors the receipt of these packets to detect connectivity issues. This is one of the two operating modes in BFD, the other being demand mode .

NEW QUESTION # 118
The Origin attribute is used to define the origin of BGP path information. There are three types of Origin attributes. Which of the following lists the Origin attributes in descending order of priority?

A. IGP > EGP > Incomplete
B. Incomplete > IGP > EGP
C. Incomplete > EGP > IGP
D. EGP > IGP > Incomplete

Answer: A

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* BGP Origin Attribute Priority:
* The Origin attribute determines the source of the route and affects the selection of the best path.
* The priority order is as follows:
* IGP (i): Highest priority. Routes injected using the network command.
* EGP (e): Lower priority. Routes learned from the EGP protocol.
* Incomplete (?): Lowest priority. Routes redistributed into BGP from other protocols.
* Correct Option:
* A: IGP > EGP > Incomplete is the correct order of priority.
References:
* HCIA-Datacom Study Guide, Chapter: BGP Path Selection
* Huawei BGP Routing Rules

NEW QUESTION # 119
Which of the following statements regarding OSPF is true?

A. OSPF performs LSDB update every 30 minutes.
B. OSPF uses the Bellman-Ford algorithm, and each router independently runs this algorithm.
C. OSPF floods a LSU packet at an interval of 5s.
D. OSPF does not have an acknowledgement mechanism. Therefore, OSPF relies on the upper-layer protocol, TCP, for acknowledgement.

Answer: A

Explanation:
OSPF routers refresh and flood LSAs in the Link-State Database (LSDB) every 30 minutes by default to maintain topology consistency. OSPF does not rely on TCP; it uses its own acknowledgment mechanism. It also uses the Dijkstra algorithm, not Bellman-Ford. The flooding interval for LSU packets is shorter, typically
5 seconds .

NEW QUESTION # 120
See the following figure. All routers on the network run IS-IS and are in area 49.0001. By referring to the LSDB of R1, the Level-2 DIS is. (Enter the device name, for example, R1.)

Answer:

Explanation:
R3
* Understanding the LSDB and Level-2 DIS Election in IS-IS:
* In IS-IS, the Designated Intermediate System (DIS) is elected for both Level-1 and Level-2 on broadcast networks to manage the link-state database (LSDB) and reduce the number of LSAs exchanged.
* The election of the DIS is based on the highest priority. If the priority is the same, the router with the highest System ID becomes the DIS.

NEW QUESTION # 121
......

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