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Huawei H12-891 Practice Test - Questions Answers, Page 45

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Question 441

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IGMP SSMMapping is bound to multicast through a static multicast source, so that members of IGMPv1 and IGMP2 can also access the SSM multicast network. The following statement about IGMPSSMMapping i

Question 442

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SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data

Question 443

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What is the security level for untrust zones in the USG Series firewalls? ( Radio).

Question 444

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Firewall security policies have the condition for traffic matching to be ?( Multi-select)

Question 445

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When an administrator configures VRRP, which of the following is not required?

Question 446

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In different scenarios, RSTP provides different protection functions, and the wrong statement about this statement is

Question 447

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An engineer used 2 routers to test IPv6 services and simulated the interconnection between headquarters and branches by running BGP4+. The network logic topology is shown in the figure, regarding th

Question 448

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When you deploy BGP/MPLSIPVPN, when two VPNs have a common site, the common site must not use overlapping address spaces with the other sites of the two VPNs. The series description for configuring

Question 449

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S-4S supports multi-instance and multi-process, that is, on an IS-IS router, multiple VPN instances can be configured to associate with multiple IS-S processes, the following description of IS-IS mu

Question 450

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Which of the following descriptions of MPLS header TTL are correct?

Question 441

IGMP SSMMapping is bound to multicast through a static multicast source, so that members of IGMPv1 and IGMP2 can also access the SSM multicast network. The following statement about IGMPSSMMapping is wrong?( Radio).

The multicast address of the SSM is 232000~232255255255

IGMP SSM Mapping does not process reporting messages from IGMPv3 In order to ensure that the same network segment runs any version

IGMP hosts can make SSM services run IGMPv3 on the multicast router socket connected to the network segment where the member host is located

If the IGMP SSM Mapping feature is not enabled, neither IGMPv1 nor IGMPv2 supports multicast for deploying SSM modules

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Question 442

SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data

TRUE

FALSE

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Question 443

What is the security level for untrust zones in the USG Series firewalls? ( Radio).

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Question 444

Firewall security policies have the condition for traffic matching to be ?( Multi-select)

apply

Source item security zone

Source item IP address

Message length

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Question 445

When an administrator configures VRRP, which of the following is not required?

Preemption mode

Priority of the virtual router

Preemption delay

Virtual IP address

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Question 446

In different scenarios, RSTP provides different protection functions, and the wrong statement about this statement is

The root protection feature is enabled for the specified port, and its port role can only remain as the specified port

When the anti-TC-BPDU packet attack feature is enabled, the number of times the switching device processes IC BPDU packets per unit time is configurable

after the BPDU protection function is enabled on the switching device, if the edge port receives RST BPDU, the edge port will be set to a non-remote port and the spanning tree calculation will be re-performed

Start the specified port of root protection, when the port receives a better RSTBPDU, the port will enter the Discarding state and is no longer forwarding packets. If the port does not receive a better RSTBPD for a period of time then automatically revert to the normal Forwarding state

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Question 447

An engineer used 2 routers to test IPv6 services and simulated the interconnection between headquarters and branches by running BGP4+. The network logic topology is shown in the figure, regarding the delivery of IPv6 routes between two devices, which of the following statements is wrong?

When a route is passed, it carries a recognized mandatory attribute such as AS_Path

BGP4+ passes routing information between peers via Update packet

When routing is passed, the Next_Hop attribute must be an IPv6 global unicast address

If the Update message carries the MP_REACH_NLRI attribute, it means that the advertisement is reachable route

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Question 448

When you deploy BGP/MPLSIPVPN, when two VPNs have a common site, the common site must not use overlapping address spaces with the other sites of the two VPNs. The series description for configuring static lSPs in MPLS networks is correct?

When an LSR is Ingress LSR, only configure Out Label, which ranges from 16-1048575

When an LSR is a Transit LSR, you need to configure both In Label and Out label, both in the range of 16-1023

When an LSR is TransitLSR, you need to configure both ln Label and Out Label, both of which are 161023 The Out Label ranges from 16 to 1048575

When an LSR is An Egyptian LSR, only in Label needs to be configured, ranging from 16-1023

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Question 449

S-4S supports multi-instance and multi-process, that is, on an IS-IS router, multiple VPN instances can be configured to associate with multiple IS-S processes, the following description of IS-IS multiinstance and multi-process, which are correct ?

If an IS-IS router creates multiple IS-IS processes, each process is independent of each other

1 IS-IS processes can only be associated with 1 VPN instance

1 IS-IS processes can be associated with several different VPN instances

1 VPN instances can be associated with several different IS-IS processes

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Question 450

Which of the following descriptions of MPLS header TTL are correct?

Copy IPTIL value is handled in such a way that the LSR of the MPLS domain is hidden, which plays a certain security role

Can prevent wireless circular forwarding of messages

MPLS has two ways of handling TTL, one is that the IP packet copies the PTTL of the MPLS header hen it enters the MPLS network Value; Another is to set the TTL of the MPLS header to 255 at the entrance LER

When copying TTL is disabled, tracert can see the LSR of the passing MPLS domain

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Total 610 questions