H12-811_V1.0 Certification - Valid Exam Dumps Questions Study Guide! (Updated 394 Questions) [Q193-Q209]

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H12-811_V1.0 Certification – Valid Exam Dumps Questions Study Guide! (Updated 394 Questions)

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Huawei H12-811_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
WLAN fundamentals	10%	– Basic WLAN configuration – WLAN working mechanism – 802.11 standards and devices
Build an IP network with interconnection and interworking	27%	– Static routing and OSPF protocol principles and configuration – IPv4 basics, addressing and subnetting – IP routing and Layer 3 forwarding principles
SDN and automation fundamentals	3%	– Network automation basics – SDN architecture and concepts – Huawei automation solutions
Network management and operations	3%	– Maintenance and troubleshooting – SNMP, logging and monitoring
Ethernet switching network construction	28%	– NAT principles and configuration – Ethernet and switch basics – VLAN, STP, RSTP principles and configuration – Link aggregation, stacking technology
WAN basics	3%	– PPP and PPPoE configuration – WAN concepts and technologies – MPLS and SR basics
Cybersecurity infrastructure and network access	8%	– Network security basics – Port security and attack defense – Access control and authentication
IPv6 basics	5%	– ICMPv6, DHCPv6 principles – Transition technologies – IPv6 addressing and header
Network services and applications	5%	– Telnet, FTP, TFTP, DHCP, DNS, NTP, HTTP principles – Basic service configuration
Data communication and network basics	8%	– VRP system basics and operations – ARP, TCP and UDP principles – Network concepts, architecture and standards – Routing and switching overview – Data forwarding process – OSI and TCP/IP models, protocols and encapsulation – Campus network lifecycle

NEW QUESTION 193
As shown in the figure, router A has successfully telneted to router B using 10.0.12.2. Which of the following operations will interrupt the Telnet session between router A and router B?

Enable OSPF on G0/0/1

Change the IP address of G0/0/1

Disable G0/0/1

Configure a static route

Explanation:

NEW QUESTION 194
The last option field (option) of 1Pv4 is variable-length optional information. What is the maximum length of this field? ()

10B

40B

60B

20B

NEW QUESTION 195
As shown in the figure, the configuration of Router A is as follows. Which of the following statements is/are incorrect?

The host with the source IP address 200.0.12.6 cannot access the Internet.

The host with the source IP address 200.0.12.8 cannot access the Internet.

The host with the source IP address 200.0.12.2 cannot access the Internet.

The host with the source IP address 200.0.12.4 cannot access the Internet.

To determine which statement is incorrect, we need to analyze the ACL configuration on Router A and understand how it filters outbound traffic to the Internet. Let ‘ s break down the configuration step by step, referencing HCIA Datacom principles for ACL processing and traffic filtering.
1. Understanding the ACL Configuration
The configuration on Router A is as follows:
text
WrapCopy
acl number 2000
rule 5 deny source 200.0.12.0 0.0.0.7
rule 10 permit source 200.0.12.0 0.0.0.15
#
interface GigabitEthernet0/0/1
traffic-filter outbound acl 2000
#
* ACL Number 2000: This is a basic ACL used to filter traffic based on source IP addresses.
* Rule 5: deny source 200.0.12.0 0.0.0.7
* The wildcard mask 0.0.0.7 translates to a subnet mask of /29 (255.255.255.248).
* The IP range for 200.0.12.0 0.0.0.7 is calculated as:
* Network address: 200.0.12.0
* Broadcast address: 200.0.12.7
* Usable host addresses: 200.0.12.1 to 200.0.12.6 (6 usable addresses in a /29 subnet).
* Therefore, this rule denies traffic from any source IP in the range 200.0.12.1-200.0.12.6.
* Rule 10: permit source 200.0.12.0 0.0.0.15
* The wildcard mask 0.0.0.15 translates to a subnet mask of /28 (255.255.255.240).
* The IP range for 200.0.12.0 0.0.0.15 is:
* Network address: 200.0.12.0
* Broadcast address: 200.0.12.15
* Usable host addresses: 200.0.12.1 to 200.0.12.14 (14 usable addresses in a /28 subnet).
* Therefore, this rule permits traffic from any source IP in the range 200.0.12.1-200.0.12.14.
* Interface Configuration: The ACL 2000 is applied outbound on interface GigabitEthernet0/0/1, meaning it filters traffic leaving Router A toward the Internet.
2. ACL Processing Logic (HCIA Datacom Reference)
According to HCIA Datacom documentation (e.g., Huawei ACL fundamentals), ACLs are processed in sequential order, and the first matching rule determines the action (permit or deny). If no rule matches, the implicit deny rule at the end of the ACL blocks the traffic. In this case:
* Rule 5 denies traffic from 200.0.12.1-200.0.12.6.
* Rule 10 permits traffic from 200.0.12.1-200.0.12.14.
* Since Rule 5 is processed before Rule 10, any IP in the overlap (i.e., 200.0.12.1-200.0.12.6) will be denied by Rule 5, even though Rule 10 would permit it.
* IPs outside 200.0.12.1-200.0.12.6 but within 200.0.12.1-200.0.12.14 are permitted by Rule 10.
* Any IP not matching Rule 5 or Rule 10 is implicitly denied (but no such IPs are listed in the options).
3. Evaluating Each Option
Now, let’s check each host IP address against the ACL rules to determine if they can access the Internet:
* A. The host with the source IP address 200.0.12.6 cannot access the Internet.
* 200.0.12.6 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
* B. The host with the source IP address 200.0.12.8 cannot access the Internet.
* 200.0.12.8 does not fall within the range 200.0.12.1-200.0.12.6 (denied by Rule 5).
* It does fall within the range 200.0.12.1-200.0.12.14 (permitted by Rule 10).
* Therefore, 200.0.12.8 is permitted to access the Internet, making this statement incorrect.
* C. The host with the source IP address 200.0.12.2 cannot access the Internet.
* 200.0.12.2 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
* D. The host with the source IP address 200.0.12.4 cannot access the Internet.
* 200.0.12.4 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
4. Conclusion
The only incorrect statement is B, as the host with the source IP address 200.0.12.8 can access the Internet because it is permitted by Rule 10 and not denied by Rule 5.
5. HCIA Datacom References
This analysis aligns with the HCIA Datacom curriculum, specifically:
* ACL Fundamentals: Huawei’s documentation on basic ACLs (e.g., ACL 2000-2999 for IPv4) and their rule processing order (first match wins).
* Traffic Filtering: Outbound ACL application on interfaces, as described in Huawei router configuration guides.
* Wildcard Mask Calculation: Standard IP addressing and subnetting principles for determining IP ranges (e.g., /29 and /28 subnets).
These principles are detailed in the HCIA Datacom V1.0 training materials, particularly in the sections on ACL configuration, IP addressing, and interface-based traffic control.

NEW QUESTION 196
Which WLAN security policies support the 0pen link authentication method? ()

WPA2-802.IX

B. WPA2-PSK

WEP

WPA

NEW QUESTION 197
The administrator has configured the router as shown in the figure. At the same time, the administrator wants to assign a shorter lease period to the DHCP address. Which of the following commands should be used? () (Single-choice question)

lease day 0 hour 10

B. lease 24

C. dhcp select relay

D. lease

NEW QUESTION 198
In the RSTP standard, in order to improve the convergence speed, the port that the switch is directly connected to the terminal can be defined as.

Backup port

Fast port

Root port

Edge port

NEW QUESTION 199
Which of the following IEEE 802.11 standards support both the 2.4 GHz and 5 GHz frequency bands?

802.11ac

802.11g

802.11n

802.11ax

Comprehensive and Detailed In-Depth Explanation:
* 802.11n (Wi-Fi 4) supports both 2.4 GHz & 5 GHz.
* 802.11ax (Wi-Fi 6) also supports both 2.4 GHz & 5 GHz.
* Incorrect Options:
* 802.11ac # Only supports 5 GHz.
* 802.11g # Only supports 2.4 GHz.
Reference: Huawei HCIA-Datacom Wireless Networking Guide – IEEE 802.11 Standards

NEW QUESTION 200
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.

TRUE

FALSE

If host A already has host B’s MAC address in its ARP cache, it can send packets directly to host B without needing to perform an ARP request. This cached information allows immediate packet delivery, assuming no network changes have occurred that would invalidate the ARP entry.

NEW QUESTION 201
In the network as shown in the figure, the administrator hopes that all hosts cannot access the Web service (the port number is 80). Other services can be accessed normally. Then, in the interface configuration of G0/0
/1, traffic-filWhich ACL rule needs to be bound to ter outbound? ()

acl number 3000
ARule 5 deny tcy destination-port eq www
Rule 10 permit ip
#

acl number 3001
Rule 5 deny udp destination-port eg www
Rule 10 permit ip
#

acl number 3002
Rule 5 permit ip
Rule 10 deny tep destination eq www
#

acl number 3003
Rule 5 permit ip
Rule 10 deny udp destination eq www
#

NEW QUESTION 202
What is the function of the command port trunk allow pass vlan all? ()

If the port default vlan3 command is configured for the connected remote device, VLAN3 cannot communicate between the two devices

All VLAN data frames are allowed to pass through this port

The connected peer device can dynamically determine which VLAN IDs are allowed.

The opposite port connected to the port must be configured with port trunk permit vlan all at the same time

NEW QUESTION 203
When planning a campus network, which of the following mask lengths is recommended for device interconnection IP addresses?

NEW QUESTION 204
Refer to the following display vlan command output. Which of the following statements are true?

When sending data frames from VLAN 20, GE0/0/2 of the switch adds VLAN tags to the data frames.

When sending data frames from VLAN 10, GE0/0/1 of the switch does not add VLAN tags to the data frames.

When sending data frames from VLAN 20, GE0/0/1 of the switch does not add VLAN tags to the data frames.

Four VLANs are manually created.

* B (Correct): GE0/0/1 is untagged for VLAN 10, meaning it does not add VLAN tags to VLAN 10 frames.
* C (Correct): GE0/0/1 is also untagged for VLAN 20, so it does not add VLAN tags to VLAN 20 frames.
* D (Correct): The output shows four VLANs (10, 20, 30, 40), which were manually created.
* A (Incorrect): GE0/0/2 is not explicitly mentioned, so VLAN tagging behavior cannot be confirmed.
Thus, the correct answers are B, C, and D.
Reference: HCIA-Datacom Study Guide, VLAN & Trunking Configuration Section.

NEW QUESTION 205
Which frequencies does IEEE802.11n support? ()

2.5GHz

2.4GHz

5GHz

6GHz

NEW QUESTION 206
As shown in the figure below. Which network device can host A and host B use to achieve communication? () (Single-choice question)

HUB

Hub

Layer 2 switch

router

NEW QUESTION 207
All the devices in the picture can communicate normally. Is the corresponding relationship between the MAC address table of $WA and the port correct? () (Single-choice question)

MAC-AG0/0/2
MAC-BG0/0/2
MAC-CG0/0/3

MAC-AG0/0/1
MAC-BG0/0/2
MAC-CG0/0/1

MAC-A–GO/0/1
MAC-B–G0/0/1
MAC-C–GO/0/3

MAC-A–GO/0/1
MAC-B-G0/0/2
MAC-C-GO/0/3

NEW QUESTION 208
As shown in the figure below, assuming that the MAC address table of SWA. is as follows, now host A. sends a data frame with a destination MAC address of MAC-B. Which of the following statements is correct? ()

Forward this data according to the G0/0/2 port

SWA. Discard the data frame

Forward this data frame from port G0/0/3

NEW QUESTION 209
In the network shown in the figure below, there are the following configurations in Router A. Which of the following statements is correct?
ip route-statiC.10.0.2.2255.255.255.25510.0.12.2iP
Route-statiC.10.0.2.2255.255.255.25510.0.21.2pre ference 70