IPv6 defines multiple types of addresses. Which of the following statements is false about these addresses?

Manually configured link-local addresses have a higher priority than automatically generated ones.

Link-local addresses can be quickly generated using the EUI-64 method.

Anycast addresses can be used only as destination addresses.

Each interface can have multiple global unicast addresses with different network prefixes.

Manually configured link-local addresses have a higher priority than automatically generated ones.

GRE is a VPN encapsulation technology that is widely used to transmit packets across heterogeneous networks. Which of the following statements is false about GRE?

GRE supports encryption and authentication.

GRE supports multicast transmission.

GRE is a Layer 3 VPN encapsulation technology.

GRE can work with other VPN protocols to better ensure data security.

An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links. Which of the following configurations are mandatory?

Configure the remote discriminator of a BFD session.

Configure the local discriminator of a BFD session.

Configure the remote discriminator of a BFD session.

Configure the local discriminator of a BFD session.

Configure a multicast IP address for BFD.

Which of the following statements is false about BFD?

The asynchronous mode does not support the echo function.

The asynchronous mode is the primary BFD operating mode.

In asynchronous mode, two systems periodically exchange BFD Control packets at the negotiated interval. If one system does not receive any BFD Control packets from the other within the detection interval, the BFD session is declared down.

The asynchronous mode does not support the echo function.

In demand mode, after a BFD session is set up, the system does not periodically send BFD Control packets.

A large shopping mall configures a VLAN pool to prevent network performance deterioration caused by potentially large broadcast domains. A network engineer runs the display vlan pool name STA command to check information about the VLAN pool. The following command output is displayed:<AC> display vlan pool name STA Name : STA Total : 2 Assignment: hash Threshold Notify Count: 3 Threshold Notify time(min): 3 VLAN ID : 2 4Which of the following statements are true?

The VLANs with the IDs of 2 and 4 are added to the VLAN pool.

The name of the VLAN pool is STA.

The VLANs with the IDs of 2 and 4 are added to the VLAN pool.

The total number of VLAN pools is 2.

The name of the VLAN pool is STA.

The VLAN pool uses the even VLAN assignment algorithm.

Which of the following statements about the forwarding plane of a switch is false?

Consists of main control boards and interface boards.

Provides high-speed and non-blocking data channels.

Can encapsulate and decapsulate packets.

Consists of main control boards and interface boards.

A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?

System power-on and power-off control

Which of the following statement regarding the display ospf peer command output is true?

Through negotiation during DD packet exchange, the local end becomes the slave.

Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.

Through negotiation during DD packet exchange, the local end becomes the slave.

Router ID indicates that the local router ID Is 10.1.1.1.

Which of the following statements regarding different LSA types is false?

LS Ack packets contain complete LSA information.

LS Request packets contain only LS Type, LS ID, and Advertising Router.

LS Ack packets contain complete LSA information.

DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.

LS Update packets contain complete LSA information.

Which of the following statements regarding OSPF route summarization is false?

Any router in OSPF can summarize routes.

OSPF supports two route summarization modes: ABR summarization and ASBR summarization.

Any router in OSPF can summarize routes.

Route summarization is the process of summarizing routes with the same prefix into one route and then advertising only the summarized route to other areas.

Route summarization can reduce routing information, decrease the routing table size, and improve router performance.

Which of the following statements is false?

When a router with the highest router priority joins an OSPF network, this router will become the new DR.

If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.

A device with a higher router priority has a higher election priority.

When a router with the highest router priority joins an OSPF network, this router will become the new DR.

If two devices have the same router priority, the device with a larger router ID has a higher election priority.

Which of the following statements regarding the LSA age field are true?

The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.

If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.

The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.

If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.

The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.

If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.

Which of the following statements regarding DR/BDR are false?

DR others listen on the network address 224.0.0.6.

In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.

DR others listen on the multicast address 224.0.0.5.

All DR others establish neighbor relationships with DR and BDR only.

DR others listen on the network address 224.0.0.6.

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

The circuit level of S4/0/0 is Level-1.

S4/0/0 sends IIH packets at the interval of 30s.

After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?

The level of an ISIS interface is changed.

The cost of an IS-IS interface is changed.

The IP address of an ISIS interface is changed.

The level of an ISIS interface is changed.

The interval at which an IS-IS interface sends IIH packets is changed.

Huawei H12-821_V1.0 Practice Test 2 - Free Online Exam Prep & Questions

Question 1 / 40

Without a prior version check, an engineer configures IGMP snooping on a device and the version of IGMP snooping is earlier than the IGMP versions on user hosts. In this case, which of the following situations will occur?

Users cannot receive multicast data because the device forwards received IGMP Report messages only to router ports and does not generate group member ports or forwarding entries.

Users cannot receive multicast data, but the device generates forwarding entries after receiving IGMP Report messages.

The IGMP snooping version of the device is automatically degraded, and users can receive multicast data properly.

The IGMP versions of the hosts are automatically upgraded, and users can receive multicast data properly.

Comment (0)

Huawei H12-821_V1.0 Practice Test 2

Question

Huawei H12-821_V1.0 Practice Tests

Practice Tests