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Huawei H12-821 - Questions & Answers

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Question 1
Multiple choice

Which of the following protocols are multi-channel protocols?

A.

H.323

B.

FTP

C.

Telnet

D.

SMTP

Question 2
Single choice

On an OSPF network, one router with P2P as the network type is directly connected to another router with P2MP as the network type. If the Hello intervals on the two routers are changed to be the same, neighbor relationship establishment and LSDB synchronization are not affected.

A.

TRUE

B.

FALSE

Question 3
Single choice

Both MQC and PBR can be applied on device interfaces to filter received and sent packets or control packet forwarding paths.

A.

TRUE

B.

FALSE

Question 4
Single choice

Route summarization is a mechanism that combines multiple routes. BGP supports automatic summarization and manual summarization on IPv6 networks.

A.

TRUE

B.

FALSE

Question 5
Single choice

Which of the following attacks is not the network layer attack?

A.

IP spoofing attack

B.

ICMP attack

C.

Smurf attack

D.

ARP spoofing attack

Question 6
Single choice

Which of the following statements regarding the firewall zone security level is false?

A.

The configured security level cannot be changed.

B.

Two zones cannot be configured with the same security level.

C.

The default security level of the new zone is 1.

D.

Only the security level of the user-defined zone can be configured.

Question 7
Single choice

The Interface \P address and VRRP virtual IP address can be the same.

A.

TRUE

B.

FALSE

Question 8
Single choice

STP ensures a loop-free network but has a slow network topology convergence speed, affecting communication quality. RSTP has made some improvements based on STP.

Which of the following improvements is not included?

A.

If a port does not receive configuration BPDUs from the upstream device within four Hello intervals, the switch considers that the negotiation with the neighbor fails.

B.

The non-root switch running RSTP sends configuration BPDUs at the interval specified by the Hello timer, which is performed independently by each device.

C.

RSTP reduces five port states to three port states based on user traffic forwarding and MAC address learning.

D.

RSTP deletes three port states and adds two port roles.

Question 9
Single choice

In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.

A.

TRUE

B.

FALSE

Question 10
Single choice

The VRID of the VRRP virtual router is 3 and the virtual IP address is 100.1.1.10.

What is the virtual MAC address?

A.

01-00-5E-00-01-64

B.

01-00-5E-00-01-03

C.

00-00-5E-00-01-64

D.

00-00-5E-00-01-03

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