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Huawei HCIP-Datacom-Core Technology V1.0 H12-821_V1.0 Dumps in PDF

Free Huawei H12-821_V1.0 Real Questions (page: 28)

H12-821_V1.0 PDF — 433 Questions

FILL BLANK

BGP uses a (an) _________ message to withdraw routes. (Enter all letters in lower case.)

  1. update

Answer(s): A

Explanation:

BGP (Border Gateway Protocol) uses the update message to advertise new routes and withdraw existing routes.
When a route is no longer available, BGP sends an update message with the withdrawn routes field, indicating that the route should be removed from the BGP table of the receiving router.

Update message is used for both advertising and withdrawing routes in BGP.



Which of the following statements regarding the summary automatic command and BGP route summarization is false?

  1. This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization
  2. After this command is configured, BGP sends only the summarized routes to peers
  3. This command enables automatic summarization for the locally imported routes
  4. After this command is configured, BGP summarizes routes based on natural network segments

Answer(s): A

Explanation:

The summary automatic command in BGP is used to enable automatic summarization, but manual summarization takes precedence over automatic summarization. If you configure manual summarization, it will override the automatic summarization.
Automatic summarization does not override manual summarization; it works only when manual summarization is not configured.



When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.

  1. TRUE
  2. FALSE

Answer(s): A

Explanation:

In BGP (Border Gateway Protocol), the Hold Time is the maximum time a router waits before declaring a neighbor as dead if no messages (such as Keepalive or Update) are received from the neighbor. The Hold Time is negotiated during the initial BGP session establishment between two peers.
If two BGP peers have different Hold Times, they will negotiate and use the shorter of the two Hold Times as the effective Hold Time for that BGP session. This ensures both peers are synchronized in terms of how long they will wait before considering the neighbor down.



In the VRP, by default, the routes imported by BGP will be automatically summarized.

  1. TRUE
  2. FALSE

Answer(s): B

Explanation:

In VRP (Virtual Routing Platform), BGP (Border Gateway Protocol) does not automatically summarize routes by default. BGP requires manual configuration for route summarization, meaning that automatic route summarization is disabled by default.
If you want to summarize routes in BGP, you must use specific commands like aggregate-address to configure manual summarization.



Which of the following statements regarding Local-Preference in BGP is true?

  1. Local-Preference affects traffic that enters an AS
  2. Local-Preference can be transmitted between ASs
  3. The default Local-Preference value is 100
  4. Local-Preference is a well-known mandatory attribute

Answer(s): C

Explanation:

By default, Local-Preference is set to 100 for all BGP routes if no other value is configured. This value can be adjusted based on network requirements to influence the outbound traffic routing.



Which of the following scenarios is not suitable for deploying interface PBR?

  1. A core switch needs to forward traffic between the intranet and extranet to an AC device that connects to the core switch in off-path mode.
  2. A core switch needs to forward the traffic between the intranet and extranet to a security detection device that connects to the core switch in off-path mode.
  3. A device needs to modify the next-hop IP address for locally originated traffic.
  4. On an enterprise network with multiple ISP outbound interfaces, each internal network segment accesses the Internet through a particular ISP outbound interface.

Answer(s): D

Explanation:

In this scenario, Policy-Based Routing is not ideal because it is more appropriate to use routing protocols or policy routing at a higher level, like static routing or dynamic routing (e.g., using BGP or OSPF), which allows traffic from different internal network segments to use specific outbound ISP interfaces. PBR is typically not the most scalable or efficient method for this type of scenario, especially when there are multiple outbound paths and policies for each segment.



Which of the following statements regarding characteristics of IP prefixes is false?

  1. An IP prefix filter provides more powerful route prefix matching function than an ACL.
  2. An IP prefix filter can be used to filter data packets.
  3. An IP prefix filter can match an IP prefix number and a prefix length.
  4. An IP prefix filter is used to filter IP address prefixes.

Answer(s): B

Explanation:

An IP prefix filter is used for routing decisions, not for filtering data packets. It filters routing information in routing tables, not the actual data traffic that is sent between devices. Data packet filtering is typically done using ACLs or firewall rules, not IP prefix filters.



A route-policy can have multiple nodes, and each node can have multiple if-match and apply clauses.
Which of the following statements are false? (Choose all that apply.)

  1. The operator between if-match clauses under a node is AND.
  2. The operator between nodes is AND.
  3. The operator between if-match clauses under a node is OR.
  4. The operator between nodes is OR.

Answer(s): B,D

Explanation:

The operator between nodes is AND.
The operator between nodes in a route-policy is typically OR, not AND. This means that if any node matches, the corresponding apply action will be executed, even if the other nodes do not match.
The operator between if-match clauses under a node is OR.
The operator between if-match clauses under the same node is AND, not OR. All conditions in the same node must be true for the apply action to be triggered.



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A
AI Tutor Explanation
4/23/2026 12:26:21 PM

Question 32:

  • Answer: A (2.4GHz)

  • Why: Lower-frequency signals have longer wavelengths and experience less attenuation when passing through walls and obstacles. Higher frequencies (5GHz, 6GHz) are more easily blocked by walls. NFC operates over very short distances and is not meant to penetrate walls. So 2.4 GHz best penetrates physical objects like walls.

Allen, United States
A
AI Tutor Explanation
4/21/2026 8:48:36 AM

Question 3:

  • False is the correct answer (Option B).

Why:
  • In Snowflake, a database is a metadata object that exists within a single Snowflake account. Accounts are isolated—there isn’t one database that lives in multiple accounts.
  • You can access data across accounts via data sharing or database replication, but these create separate database objects in the other accounts (e.g., a database in the consumer account created from a share), not a single shared database across accounts.

So a single database cannot exist in more than one Snowflake account.

Thane, India
A
Anonymous User
4/16/2026 10:54:18 AM

Question 1:

  • Correct answer: E — date = sys.argv[1]
  • Why this is correct:
- When a Databricks Job passes parameters to a notebook, those parameters are supplied to the notebook's Python process as command-line arguments. The first argument after the script name is sys.argv[1], so date = sys.argv[1] captures the passed date value directly.
  • How it compares to other options:
- date = spark.conf.get("date") reads from Spark config, not from job parameters. - input() waits for user input at runtime, which isn’t how job parameters are provided. - date = dbutils.notebooks.getParam("date") would work if the notebook were invoked via dbutils.notebook.run with parameters, not

Innisfil, Canada
A
Anonymous User
4/15/2026 4:42:07 AM

Question 528:

  • Correct answer: NSG flow logs for NSG1 (Option B)

  • Why:
- Traffic Analytics uses NSG flow logs to analyze traffic patterns. You must have NSG flow logs enabled for the NSGs you want to monitor. - An Azure Log Analytics workspace is also required to store and query the traffic data. - Network Watcher must be available in the subscription for traffic analytics to function.
  • What to configure (brief steps):
- Ensure Network Watcher is enabled in the East US region (for the subscription/region). - Enable NSG flow logs on NSG1. - Ensure a Log Analytics workspace exists and is accessible (read/write) so Traffic Analytics can store and query logs.
  • Why other options aren’t correct:
- “Diagnostic settings for VM1” or “Diagnostic settings for NSG1” alone don’t guarantee flow logs are captured and sent to Log Analytics, which Traffic Analytics relies on. - “Insights for VM1” is not how Traffic Analytics collects traffic data.

Hamburg, Germany
A
Anonymous User
4/15/2026 2:43:53 AM

Question 23:
The correct answer is Domain admin (option B), not Fabric admin.

  • Domain admin provides domain-level management: create domains/subdomains and assign workspaces within those domains, which matches the tasks while following least privilege.
  • Fabric admin is global-level access and is more privileges than needed for this scenario (it would grant broader control across the Fabric environment).

Kottayam, India
A
Anonymous User
4/14/2026 12:31:34 PM

Question 2:
For question 2, the key concept is the Longest Prefix Match. Routers pick the route whose subnet mask is the most specific (largest prefix length) that still matches the destination IP.
From the options:

  • A) 10.10.10.0/28 ? 10.10.10.0–10.10.10.15
  • B) 10.10.13.0/25 ? 10.10.13.0–10.10.13.127
  • C) 10.10.13.144/28 ? 10.10.13.144–10.10.13.159
  • D) 10.10.13.208/29 ? 10.10.13.208–10.10.13.215

The destination Host A’s IP must fall within 10.10.13.208–10.10.13.215 for the /29 to be the best match. Since /29 is the longest prefix among the matching options, Router1 will use 10.10.13.208/29.
Thus, the correct answer is D.

Canada
S
srameh
4/14/2026 10:09:29 AM

Question 3:

  • Correct answer: Phase 4, Post Accreditation

  • Explanation:
- In DITSCAP, the four phases are: - Phase 1: Definition (concept and requirements) - Phase 2: Verification (design and testing) - Phase 3: Validation (fielding and evaluation) - Phase 4: Post Accreditation (ongoing operations and lifecycle management) - The description—continuing operation of an accredited IT system and addressing changing threats throughout its life cycle—fits the Post Accreditation phase, which covers operations, maintenance, monitoring, and reauthorization as threats and environment evolve.

France
O
onibokun10
4/13/2026 7:50:14 PM

Question 129:
Correct answer: CNAME

  • A CNAME record creates an alias for a domain, so newapplication.comptia.org will resolve to whatever IP address www.comptia.org resolves to. This ensures both names point to the same resource without duplicating the IP.
  • Why not the others:
- SOA defines authoritative information for a zone. - MX specifies mail exchange servers. - NS designates name servers for a zone.
  • Notes: The alias name (newapplication.comptia.org) should not have other records if you use a CNAME for it, and CNAMEs aren’t used for the zone apex (root) domain. This scenario uses a subdomain, so a CNAME is appropriate.

Swindon, United Kingdom
A
Anonymous User
4/13/2026 6:29:58 PM

Question 1:

  • Correct answer: C

  • Why this is best:
- Uses OS Login with IAM, so SSH access is granted via Google accounts rather than distributing per-user SSH keys. - Granting the compute.osAdminLogin role to a Google group gives admin access to all team members in a centralized, auditable way. - Access is auditable: Cloud Audit Logs show who accessed which VM, satisfying the security requirement to determine who accessed a given instance.
  • How it works:
- Enable OS Login on the project/instances (enable-oslogin metadata). - Add the team’s

Germany
A
Anonymous User
4/13/2026 1:00:51 PM

Question 2:

  • Answer: D. Azure Advisor

  • Why: To view security-related recommendations for resources in the Compute and Apps area (including App Service Web Apps and Functions), you use Azure Advisor. Advisor surfaces personalized best-practice recommendations across resources, including security, and shows which resources are affected and the severity.

  • Why not the others:
- Azure Log Analytics is for ad-hoc querying of telemetry, not for viewing security recommendations. - Azure Event Hubs is for streaming telemetry data, not for security recommendations.
  • Quick tip: In the portal, navigate to Azure Advisor and check the Security recommendations for App Services to see actionable items and affe

    Brazil
D
Don
4/11/2026 5:36:42 AM

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Hamburg, Germany
M
Mogae Malapela
4/8/2026 6:37:56 AM

This is very interesting

Gaborone, Botswana
A
Anon
4/6/2026 5:22:54 PM

Are these the same questions you have to pay for in ExamTopics?

Amsterdam, The Netherlands
L
LRK
3/22/2026 2:38:08 PM

For Question 7 - while the answer description indicates the correct answer, the option no. mentioned is incorrect. Nice and Comprehensive. Thankyou

Paris, France
R
Rian
3/19/2026 9:12:10 AM

This is very good and accurate. Explanation is very helpful even thou some are not 100% right but good enough to pass.

United States
G
Gerrard
3/18/2026 6:58:37 AM

The DP-900 exam can be tricky if you aren't familiar with Microsoft’s specific cloud terminology. I used the practice questions from free-braindumps.com and found them incredibly helpful. The site breaks down core data concepts and Azure services in a way that actually mirrors the real test. As a resutl I passed my exam.

United States
V
Vineet Kumar
3/6/2026 5:26:16 AM

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Anonymous
J
Joe
1/20/2026 8:25:24 AM

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UNITED STATES
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NJ
12/24/2025 10:39:07 AM

Helpful to test your preparedness before giving exam

Anonymous
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Ashwini
12/17/2025 8:24:45 AM

Really helped

Anonymous
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Jagadesh
12/16/2025 9:57:10 AM

Good explanation

INDIA
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shobha
11/29/2025 2:19:59 AM

very helpful

INDIA
P
Pandithurai
11/12/2025 12:16:21 PM

Question 1, Ans is - Developer,Standard,Professional Direct and Premier

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Einstein
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Anonymous
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David
10/31/2025 4:06:16 PM

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UNITED STATES
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Thor
10/21/2025 5:16:29 AM

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NEW ZEALAND
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Vladimir
9/25/2025 9:11:14 AM

173 question is A not D

Anonymous
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khaos
9/21/2025 7:07:26 AM

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Anonymous
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Katiso Lehasa
9/15/2025 11:21:52 PM

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Anonymous
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Einstein
9/2/2025 7:42:00 PM

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UNITED KINGDOM
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8/22/2025 4:16:51 AM

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Anonymous
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Matt
7/31/2025 11:44:40 PM

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UNITED STATES
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OLERATO
7/1/2025 5:44:14 AM

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SOUTH AFRICA
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Adekunle willaims
6/9/2025 7:37:29 AM

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