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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q301-Q306):

NEW QUESTION # 301
PBR is a mechanism for selecting routes based on user-defined policies. There are two types of PBR:
interface-based PBR and local PBR. Which of the following statements is false about these two types of PBR?

A. Local PBR is configured in the protocol view.
B. Interface-based PBR is configured on an interface and takes effect only for incoming packets on the interface.
C. Local PBR takes effect only for locally originated packets.
D. Interface-based PBR takes effect only for forwarded packets.

Answer: A

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Overview of PBR (Policy-Based Routing):
Policy-Based Routing (PBR) allows you to override traditional routing decisions by defining user-specific policies.
* Interface-Based PBR: Applied to packets arriving at a specific interface and affects traffic being forwarded through the device.
* Local PBR: Applied to traffic generated by the local router itself (e.g., locally originated packets such as management traffic).
2. Analysis of Each Statement:
Option A: Interface-based PBR takes effect only for forwarded packets.
* Correct (True Statement).
* Interface-based PBR applies only to packets arriving at a specific interface and being forwarded through the router. It does not affect locally originated traffic.
Option B: Local PBR takes effect only for locally originated packets.
* Correct (True Statement).
* Local PBR specifically applies to traffic generated by the router itself, such as pings, SNMP requests, or routing protocol updates.
Option C: Interface-based PBR is configured on an interface and takes effect only for incoming packets on the interface.
* Correct (True Statement).
* Interface-based PBR is applied directly on the interface using commands like policy-based-route. It only affects traffic entering the specified interface.
Option D: Local PBR is configured in the protocol view.
* Incorrect (False Statement).
* Local PBR is not configured in the protocol view. It is typically configured using the command local- policy in the system view to handle traffic generated by the router.
3. Summary:
D: (Local PBR is NOT configured in the protocol view).

NEW QUESTION # 302
Based on IGMP snooping, IGMP snooping proxy enables a switch to act as a substitute for an upstream Layer
3 device to send IGMP Query messages to downstream hosts, and also to act as a substitute for downstream hosts to send IGMP Report/Leave messages to an upstream device. As such, this function conserves bandwidth between the upstream device and the local device.

A. FALSE
B. TRUE

Answer: B

Explanation:
GMP Snooping Proxy
* IGMP snooping proxy allows the switch to substitute for upstream Layer 3 devices and downstream hosts, reducing unnecessary bandwidth consumption by consolidating IGMP messages.
HCIP-Datacom-Core Reference
* The IGMP snooping proxy functionality is described in multicast optimization and IGMP configuration chapters

NEW QUESTION # 303
The following figure shows the OSPF network of an enterprise and the OSPF configurations of R1. Which of the following statements is false about the network?

A. R2 can access the server.
B. The network segment to which GE 0/0/1 of R1 belongs cannot be advertised.
C. GE 0/0/1 of R1 cannot accept OSPF packets.
D. GE 0/0/1 of R1 cannot send OSPF packets.

Answer: B

Explanation:
Silent Interface Explanation
* The silent-interface command is used to prevent OSPF from sending or receiving OSPF packets on the specified interface (GE 0/0/1). This disables OSPF adjacency establishment and stops route advertisement for that interface.
Network Observations
* Statement A: R2 can access the server.This is correct, as the silent interface does not impact data traffic, only OSPF-related communication.
* Statement B: GE 0/0/1 of R1 cannot send OSPF packets.Correct due to the silent-interface configuration.
* Statement C: The network segment to which GE 0/0/1 of R1 belongs cannot be advertised.This is correct, as the silent interface prevents route advertisement.
* Statement D: GE 0/0/1 of R1 cannot accept OSPF packets.Correct, as the silent interface configuration blocks packet reception.
HCIP-Datacom-Core Reference
* OSPF interface command behavior is outlined in the configuration and lab examples sections.

NEW QUESTION # 304
See the following figure. RTA, RTB, RTC, and RTD are in the same AS and establish IBGP peer relationships through direct links. RTB an RTC are route reflectors (RRs), RTA and RTC are the RR clients of RTB, and RTB and RTD are the RR clients of RTC. If RTA advertises the route 10.1.1.0/24 to the BGP process, the Originator ID of the BGP route received by RTD is------------------.

Answer:

Explanation:
IN ORDER

NEW QUESTION # 305
After a BGP device establishes a peer relationship, it advertises routes. Which of the following statements are true about BGP route advertisement?

A. When routes are updated, the BGP device sends all BGP routes.
B. When there are multiple valid routes to the same destination, a BGP device advertises only the optimal route to its peers.
C. Routes obtained from EBGP peers are advertised to all peers.
D. Routes obtained from an IBGP peer are not sent to other IBGP peers.

Answer: B,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
* A. TRUE # EBGP-learned routes can be advertised to both IBGP and EBGP peers.
* B. FALSE # BGP uses incremental updates, meaning it only advertises changed routes, not all routes.
* C. TRUE # BGP advertises only the best path to prevent unnecessary routing information.
* D. TRUE # IBGP split-horizon rule: Routes learned from IBGP peers are not re-advertised to other IBGP peers (to prevent loops).
# Reference: Huawei HCIA-Datacom Study Guide, BGP Route Advertisement and Split-Horizon Rule.

NEW QUESTION # 306
......

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