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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q1014-Q1019):

NEW QUESTION # 1014
Which of the following descriptions about OSPF is correct?

A. After the ospf mtu-enable command, OSPF will check the MTU length in the LSU, if it is inconsistent with the MTU length in the message sent by itself, the device will remain in the Exchange state
B. Only LS Update and LS Request messages carry complete LSA information
C. The destination address of the Hello packet is 224.0.0.5 and 224.0.0.6
D. The DD message does not necessarily carry link state summary information. At this time, the DD message can be used to negotiate the master-slave relationship

Answer: D

NEW QUESTION # 1015
Route attributes are specific descriptions of routes. BGP route attributes can be classified into four types.
Which of the following are well-known discretionary attributes?

A. Local-Preference
B. MED
C. Atomic_Aggregate
D. Community

Answer: A,C

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. BGP Attributes Overview:
BGP uses attributes to describe the properties of routes. These attributes are classified into the following categories:
* Well-Known Mandatory: Attributes that must be recognized and included in every BGP update.
Examples: AS_PATH, ORIGIN, NEXT_HOP.
* Well-Known Discretionary: Attributes that must be recognized but are not required in every BGP update. Examples: LOCAL_PREF, ATOMIC_AGGREGATE.
* Optional Transitive: Attributes that may or may not be recognized, but must be passed along to other BGP peers. Examples: COMMUNITY.
* Optional Non-Transitive: Attributes that may or may not be recognized, and are not passed along to other BGP peers. Examples: MED (Multi-Exit Discriminator).
2. Analysis of Each Option:
Option A: Atomic_Aggregate
* Correct.
* This is a well-known discretionary attribute. It indicates that the advertised route is an aggregate route that summarizes multiple specific routes.
Option B: Local-Preference
* Correct.
* This is a well-known discretionary attribute. It is used within an AS to prioritize routes, with higher values being preferred.
Option C: Community
* Incorrect.
* The COMMUNITY attribute is an optional transitive attribute. It is used to tag routes with specific labels to apply routing policies.
Option D: MED (Multi-Exit Discriminator)
* Incorrect.
* The MED attribute is an optional non-transitive attribute. It is used to influence the choice of the preferred path when there are multiple entry points into an AS.
3. Summary:
* Well-Known Discretionary Attributes: Atomic_Aggregate and Local-Preference.

NEW QUESTION # 1016
On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2. In this case, which of the following routing entries may exist in the routing table of R2?

A. 10.1.2.0/24
B. 10.1.1.0/24
C. 10.1.3.0/24
D. 10.1.4.0/24

Answer: A,C,D

Explanation:
Configuration Analysis:
OnR2, the following configuration has been applied:
acl 200
rule deny source 10.1.0.0 0.0.3.0
rule permit
#
ospf 1
filter-policy 2000 import
This configuration usesACL 200to filter routes during import into the OSPF routing table on R2.
Rule deny source 10.1.0.0 0.0.3.0:Blocks routes in the range10.1.0.0/24 to 10.1.3.0/24(inclusive).
Rule permit:Allows all other routes to be imported.
Impact of ACL 200 on Route Import:
10.1.0.0/24 to 10.1.3.0/24:These subnets are explicitly denied by ACL 200 and will not appear in R2's routing table.
10.1.4.0/24 and beyond:These subnets are permitted by therule permitstatement and will be imported into R2's routing table.
Routing Table Entries on R2:
Option A (10.1.4.0/24):Exists in R2's routing table because it is permitted.
Option B (10.1.3.0/24):Does not exist because it is denied by ACL 200.
Option C (10.1.2.0/24):Does not exist because it is denied by ACL 200.
Option D (10.1.1.0/24):Does not exist because it is denied by ACL 200.
A (10.1.4.0/24)
References:
HCIA-Datacom Study Guide, Chapter: OSPF Route Filtering
Huawei ACL Configuration for Route Policies

NEW QUESTION # 1017
Regarding the command of OSPF route aggregation, which description is correct? (Multiple choice)

A. Advertise is the missing first parameter of the abr-summary command, that is, if the abr- summary command does not specify not-advertise, the default is advertise
B. not-advertise is the missing first parameter of the abr-summary command, that is, if the abr- summary command does not specify advertisement, the default is not -advertis
C. The abr-summary command is a command in the OSPF area view
D. The asbr-summary command is a command in OSPF view

Answer: A,C,D

NEW QUESTION # 1018
Which of the following configurations are not mandatory when an administrator configures VRRP?

A. Virtual IP address
B. Preemption delay
C. Preemption mode
D. Virtual router priority

Answer: B,C

Explanation:
When configuring VRRP, the virtual router priority and virtual IP address are mandatory because they define the VRRP instance and its role within the group.
Preemption mode and preemption delay are optional configurations that influence how routers take over the master role when priorities change. These are not mandatory for the VRRP protocol to function.

NEW QUESTION # 1019
......

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Huawei H12-821_V1.0 Exam is Easy with Our Trustable H12-821_V1.0 Practice Engine: HCIP-Datacom-Core Technology V1.0 Effectively

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q1014-Q1019):

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