Accurate H12-821_V1.0 Answers - Examcollection H12-821_V1.0 Questions Answers

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The Huawei H12-821_V1.0 exam covers a range of topics related to data communication, including network architecture principles, network protocols and technologies, network security, network management, and network troubleshooting. It is intended for network engineers, network administrators, and other professionals who are involved in the design, implementation, and maintenance of data communication networks.

Huawei H12-821_V1.0 exam is a rigorous certification that validates the skills and knowledge of individuals seeking a career in the field of data communication. By passing H12-821_V1.0 Exam, candidates can demonstrate their expertise in core data communication technologies and their ability to design and deploy data communication networks using Huawei products. HCIP-Datacom-Core Technology V1.0 certification is a valuable asset for professionals looking to advance their careers and open up new opportunities in the global marketplace.

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q223-Q228):

NEW QUESTION # 223
On an RSTP network, port priorities may be compared during root port or designated port election. Which of the following values is the default priority of a port on a Huawei switch?

A. 0
B. 1
C. 2
D. 3

Answer: B

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Port Priority in RSTP:
* RSTP (Rapid Spanning Tree Protocol) elects root and designated ports based on port priority and port ID.
* Port priority is a configurable value that helps determine which port becomes the root or designated port when multiple ports are eligible.
* The port ID consists of the port priority and port number. When priorities are equal, the port number is used as a tiebreaker.
2. Default Port Priority on Huawei Switches:
* On Huawei switches, the default port priority is 128.
* This value can be adjusted in increments of 16 using the command stp port priority.
3. Analysis of Options:
Option A: 1
* Incorrect. This is not the default port priority value.
Option B: 128
* Correct. This is the default port priority value on Huawei switches.
Option C: 4096
* Incorrect. This is not a valid default port priority value.
Option D: 32768
* Incorrect. This is the default bridge priority, not the port priority.
4. Summary:
* The default port priority on Huawei switches is 128.

NEW QUESTION # 224
A network entity title consists of an area address and a system ID. It is a special NSAP (the SEL has a fixed value of 00) and is mainly used for route calculation.

A. TRUE
B. FALSE

Answer: A

Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:The Network Entity Title (NET) is a unique identifier assigned to an IS-IS router. It is derived from the Network Service Access Point (NSAP) address and consists of the following components:
* Area Address:
* Identifies the area in which the router resides.
* Multiple routers in the same IS-IS area must have the same area address.
* System ID:
* Uniquely identifies the router within the IS-IS area.
* The System ID is typically derived from the router's loopback IP address or another unique value.
* SEL (Selector Field):
* The SEL field is always set to 00 for IS-IS NETs.
The NET is used by IS-IS for route calculation and to identify the router within the IS-IS domain. Therefore, the statement is TRUE.
References:
* Huawei HCIA-Datacom Study Guide, Chapter on "IS-IS Addressing".
* RFC 1195 - Use of OSI IS-IS for Routing in TCP/IP and Dual Environments.

NEW QUESTION # 225
A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is true?

A. S4/0/0 sends IIH packets at the interval of 30s.
B. The circuit level of S4/0/0 is Level-1.
C. The cost of S4/0/0 is 20.
D. S4/0/0 supports IPv6.

Answer: A

NEW QUESTION # 226
A session is an entry used to record the connection status of a protocol and is fundamental for the firewall to forward packets. Which of the following protocol packets will the firewall create sessions for?

A. TCP
B. ICMP error packet
C. GRE
D. Subsequent fragment

Answer: A,C

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is a Firewall Session?
* A firewall session is an entry used to maintain the connection state of a protocol.
* When a packet is forwarded, the firewall creates a session for it and tracks subsequent packets for the same connection to ensure efficient forwarding and security enforcement.
2. Analysis of Each Option:
Option A: Subsequent fragment
* Incorrect.
* A session is created for the initial fragment of a packet. Subsequent fragments are matched to the existing session and do not trigger the creation of a new session.
Option B: ICMP error packet
* Incorrect.
* ICMP error packets (e.g., Destination Unreachable) are considered exceptions and do not create new sessions.
Option C: GRE (Generic Routing Encapsulation)
* Correct.
* GRE is a tunneling protocol that encapsulates packets. A firewall creates a session for GRE traffic to track the state of the encapsulated connection.
Option D: TCP (Transmission Control Protocol)
* Correct.
* TCP is a connection-oriented protocol, and firewalls create sessions for TCP connections to track their state (e.g., SYN, SYN-ACK, FIN).
3. Summary:
* The firewall creates sessions for GRE and TCP protocols.

NEW QUESTION # 227
Drag the following VRRP states to the corresponding working mechanisms.

Answer:

Explanation:

Explanation:
Master
Backup
Master
Backup

NEW QUESTION # 228
......

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