Released Huawei H12-821_V1.0-ENU Updated Questions PDF [Q322-Q341]

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Released Huawei H12-821_V1.0-ENU Updated Questions PDF

H12-821_V1.0-ENU Dumps and Practice Test (966 Exam Questions)

By passing the Huawei H12-821_V1.0-ENU Exam, IT professionals can demonstrate their expertise in core data communication technologies and enhance their career prospects. HCIP-Datacom-Core Technology V1.0 certification is recognized globally and is highly valued by employers in the IT industry. It can help professionals to secure better job opportunities, higher salaries, and career advancement.

Huawei H12-821_V1.0-ENU (HCIP-Datacom-Core Technology V1.0) Certification Exam is a professional-level certification exam offered by Huawei Technologies Co., Ltd. HCIP-Datacom-Core Technology V1.0 certification is designed to validate and certify the skills and knowledge of professionals working in the field of data communication and core network technologies. H12-821_V1.0-ENU exam covers a wide range of topics, including network architecture, network protocols, network management, and network security.

Q322. Which of the following descriptions about the OSPF protocol is wrong?

There are four connection types described by Router-LSA: P2P/TransNet/StubNetl virtual link

Routing information is only allowed to be published between backbone areas and non-backbone areas, and routing information is not allowed to be directly published between non-backbone areas

Each OSPF router uses only one Router-LSA to describe the local active connection status belonging to an area

The Link State ID described in the third type of LSA is the router- id of the ABR

Q323. By default, the interval for sending BGP Keepalive packets is () s. (using Arabic numerals)

Q324. The following information is output to a route, which of the following description about the information is correct?

The router has an IBGP neighbor relationship with neighbor 2.2.2.2

The Router ID of the router is 1.1.1.1

The AS number where the router is located is 100

The router negotiates with its neighbors and uses BGP version 3

Q325. Which of the following about OSPF is true?

OSPF LSA is updated regularly every 30 minutes

OSPF floods an LSU every 5s

OSPF uses Bellman-Ford algorithm, each router runs the algorithm independently

OSPF itself does not have a confirmation mechanism, so OSPP relies on the underlying protocol, namely TCP confirmation.

Q326. The session-based state detection firewall has different processing procedures for the first packet and subsequent packets. Which of the following descriptions is correct? (Multiple choice)

When the status check mechanism is turned on, subsequent packages also need to be checked for security policies

When a packet arrives at the firewall, it will look up the session table. If there is no match, the firewall will perform the first packet processing flow

When the stateful inspection mechanism is turned on, when the firewall processes TCP packets, only SYN packets can establish a session

When a packet arrives at the firewall, it will look up the session table. If it matches, the firewall will perform subsequent packet processing procedures

Q327. Router-LSA can describe different link types. Which of the following is not a Router LSA link type?

Link Type can be used to describe the virtual connection, that is, Vlink

Link Type can be used to describe the connection to the transit network, namely TranNet

Link Type can be used to describe the point-to-multipoint connection to another router group, namely p2mp

Link Type can be used to describe the connection to the peripheral network, namely SubNet

Link Type can be used to describe a point-to-point connection to another router, ie p2p

Q328. Which of the following statements about DHCP Server denial of service attacks are correct? (Multiple choice)

DHCP denial of service attacks consume address resources by continuously modifying the CHADDR field in the DHCP request message

DHCP denial of service attacks will quickly exhaust the IP address resources in the DHCP address pool

After the DHCP server address resources are exhausted, it will no longer process and respond to DHCP request messages.

DHCP denial of service attack consumes address pool resources by controlling a large number of terminals to send address request messages at the same time

Q329. For link state routing protocols, when filter-policy import is used, the filtered link state information cannot be calculated as a route, and its neighbors cannot receive complete link state information.

True

False

Q330. What functions can Huawei iMaster NCE products achieve? (Multiple choice)

Devices can be managed across manufacturers

Network Automation

Provide a variety of open API interfaces

Predictive Maintenance Based on Big Data and Al

Q331. When roaming is configured on a WLAN, which of the following factors may cause inter-AC roaming failure? (Multiple choice)

The names of roaming groups between ACs are inconsistent

When configuring the roaming group, the AC does not configure the CAPWAP source address

The two APs implementing WLAN roaming are not configured with the same security profile name

Enable the dual-link hot backup function

Q332. Which of the following are multi-channel protocols? (Multiple choice)

Telnet

FTP

H.323

SMTP

Q333. Which of the following routing protocols support the release of default routes through command configuration? (Multiple choice)

BGP

IGMP

ISIS

OSPF

Q334. What is the role of the Hello message in PIM-SM? (Multiple choice)

Neighbors’ capability negotiation

Establish and maintain neighbor relations

Election network segment BDR

Q335. Which of the following description of roaming is correct? (Multiple choice)

APs that implement wireless roaming do not need to have signal coverage overlapping areas

APs that implement wireless roaming must have signal coverage overlapping areas

APs that implement wireless roaming must be in the same extended service set (ESS)

APs that implement wireless roaming must be in the same basic service set (BSS)

Q336. Which of the following descriptions about IGMP Proxy is wrong?

In order to alleviate the pressure on the IGMP querier, the IGMP Proxy device aggregates the membership report / leave messages and sends them to the IGMP querier

The IGMP Proxy device can proxy the IGMP querier to send query messages to member hosts

The host interface refers to the interface configured with the IGMP function on the IGMP Proxy device, which is generally for group members

You can enable the IGMP proxy function through the igmp-snooping proxy command

Q337. In the network shown in the figure, the R1 device is configured with route penetration, then the R1 device sends the LSP of Leve1-2 to R3, so that R3 can learn the entire network route.

True

False

Q338. Enterprise business often has strict requirements on the quality of service of the network. Which of the following aspects are commonly used to describe the quality of service of the network? (Multiple choice)

stable

Bandwidth
c. Delay

Jitter

Security

Q339. R1, R2, R3, R4 run OSPF, the area ID is as shown in the figure, then () will generate Type-3 LSA. (Please fill in the device name, such as R1)

Q340. The route is injected into BGP through the network command. Which of the following description is wrong? (Multiple choice)

Just match the prefix, the length of the mask does not need to be strictly matched

The length of the mask must match exactly

The route cannot be an IGP route, it can only be a direct route

The route must exist in the IP routing table and is the best route

Q341. Which of the following statements about the BGP notification principle is wrong?

Routes obtained from IBGP peers can only be sent to IBGP peers

When a router learns a BGP route from its own IBGP peer, it cannot use this route or advertise this route to its own EBGP peer unless it learns this route from the IGF protocol route

The route obtained from the EBGP peer will be advertised to all peers

Only publish the optimal route

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