Spring Special Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code = getmirror

Home
Huawei
HCIA-Datacom
H12-811_V1.0
HCIA-Datacom V1.0 Exam Questions and Answers

Pass the Huawei HCIA-Datacom H12-811_V1.0 Questions and answers with ExamsMirror

Practice at least 50% of the questions to maximize your chances of passing.

Exam H12-811_V1.0 Premium Access

View all detail and faqs for the H12-811_V1.0 exam

Go to Exam

8942 Students Passed

90% Average Score

95% Same Questions

Viewing page 6 out of 11 pages

Viewing questions 51-60 out of questions

Questions # 51:

Assuming all STP enabled switches have the same bridge priority. The MAC address of switch A is 00-e0-fc-00-00-40, the MAC address of switch B is 00-e0-fc-00-00-10, the MAC address of switch C is 00-e0-fc-00-00-20, and the MAC address of switch D is 00-e0-fc-00-00-80. Which switch will be elected as the root switch?

Options:

Switch B

Switch A

Switch D

Switch C

Answer

Explanation

Detailed Explanation:When bridge priorities are identical, STP elects the switch with the lowest MAC address as the root. Here, Switch B has the lowest MAC address (00-e0-fc-00-00-10), making it the root switch. (Reference: HCIA-Datacom Training Material, STP Root Bridge Election)

Questions # 52:

What are the advantages of using DHCP to allocate IP addresses?

Options:

DHCP can prevent IP address conflicts.

DHCP provides heavy workload and is difficult to manage.

IP addresses can be reused.

If the configuration information changes, for example, the DNS server address changes, the administrator only needs to modify the configuration information on the DHCP server, facilitating unified management.

Answer

A, C, D

Explanation

Detailed Explanation:Using DHCP provides several advantages:

It helps prevent IP address conflicts because the DHCP server dynamically assigns IP addresses, ensuring each device gets a unique one.

IP addresses can be reused by setting lease times, allowing the DHCP server to recycle addresses from devices that no longer need them.

Centralized configuration management is also possible. If network configuration details such as the DNS server change, the administrator can update these settings on the DHCP server, and all DHCP clients will automatically receive the new information.

Questions # 53:

Which of the following statements are true about the OSPF neighbor status?

Options:

In the Exchange state, routers send DD packets that briefly describe link-state information to each other to describe the content of the local LSDB.

The master/slave relationship of OSPF is formed in the ExStart state.

After LSDB synchronization is completed, the router state changes to Full.

The sequence number of DD packets is determined in the Exchange state.

Answer

A, B, C, D

Explanation

Comprehensive and Detailed Explanation:

OSPF neighbor states occur in the following sequence:

Down → No Hello packets received.

Init → Hello received, but no bidirectional communication yet.

2-Way → Bidirectional Hello exchange, DR/BDR election happens here.

ExStart → Master/slave relationship is determined (B is correct).

Exchange → Routers exchange Database Description (DD) packets to describe their LSDBs (A and D are correct).

Loading → Link State Requests (LSR) and Link State Updates (LSU) occur.

Full → LSDB synchronization is complete (C is correct).

✅ Reference: HCIA-Datacom Routing Guide – OSPF Neighbor States

Questions # 54:

Which of the following MAC addresses cannot be used as the MAC address of host network adapters?

Options:

0002-0304-05-06

02-03-04-05-06-07

01-02-03-04-05-06

03-04-05-06-07-08

Answer

Explanation

Detailed Explanation:MAC addresses that start with the first octet having the least significant bit (LSB) of the first byte set to 1 (such as 01-02-03-04-05-06) are multicast MAC addresses, and these cannot be assigned to a host's network interface card (NIC). Only unicast MAC addresses can be assigned to hosts.

Questions # 55:

As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?

Question # 55

Options:

400

200

600

Answer

Questions # 56:

If the value of the "Type/Length" field of an Ethernet data frame is 0x0800, the length range of the upper-layer packet header carried by the data frame is from 20B to 60B.

Options:

TRUE

FALSE

Answer

Explanation

Detailed Explanation:The Type/Length field value of 0x0800 indicates that the upper-layer protocol is IPv4. However, the length of the IPv4 header can range from 20 to 60 bytes, not the length of the entire upper-layer packet. The field refers to the type of the encapsulated protocol, and the length is not constrained to the header alone.

Questions # 57:

Which of the following is not a characteristic of small campus networks?

Options:

Simple network requirements

Wide coverage

Simple network architecture

Small number of users

Answer

Explanation

Detailed Explanation:Small campus networks are characterized by simple architecture, limited user counts, and straightforward network requirements. Wide coverage is typically associated with larger campus or enterprise networks. (Reference: HCIA-Datacom Training Material, Campus Network Characteristics)

Questions # 58:

Which of the following OSPF packets can be sent to request the locally missing LSAs?

Options:

LSI

HELLO

LSACK

LSR

Answer

Explanation

LSI (A): There is no such packet type in OSPF.

HELLO (B): These packets are used for neighbor discovery and maintaining adjacency, not for requesting LSAs.

LSACK (C): Link-State Acknowledgment (LSAck) packets confirm the receipt of LSAs but do not request missing ones.

LSR (D): Link-State Request (LSR) packets are specifically used by routers to request missing LSAs from their neighbors.

Thus, the correct answer is D (LSR).

[Reference: HCIA-Datacom Study Guide, OSPF Packet Types Section., , ]

Questions # 59:

As shown in the figure, which of the following ports will be in blocking state?

Question # 59

Options:

G0/0/3 of SWA

G0/0/3 of SWB

G0/0/2 of SWC

G0/0/1 of SWC

Answer

Explanation

Detailed Explanation:In a Spanning Tree Protocol (STP) environment, the root bridge is selected based on the bridge ID. Here, SWA has the lowest bridge ID (4096:0001-0203-04AA), making it the root bridge. For each network segment, STP elects one designated port to forward traffic, and all other ports in that segment will be blocked to prevent loops.

Following the STP rules:

SWA is the root bridge, so all of its ports (G0/0/2 and G0/0/3) will be designated ports.

Each non-root switch (SWB and SWC) selects one root port, which is the port with the lowest path cost to the root bridge (SWA).

SWB's G0/0/3 will have a higher path cost when compared with G0/0/1 (if assuming equal link costs), thus making G0/0/1 the root port on SWB.

SWB will then block its G0/0/3 port to prevent a loop, as SWA's G0/0/3 is already the designated port for that link.

Hence, G0/0/3 of SWB will be in the blocking state to maintain a loop-free topology

Questions # 60:

The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?