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H12-891_V1.0 HCIE-Datacom V1.0 Questions and Answers

Questions 4

As shown in the figure, a company wants to achieve secure mutual access between the head office and branches through MPLSVPN, and at the same time requires that the IPN traffic of the branch bank must be forwarded through the head office to achieve traffic monitoring

H12-891_V1.0 Question 4

Options:

A.

VPN routing information can be exchanged between A. CE and PE using BGP messages

B.

When Hub-CE passes routing information with Hub-PE, you need to configure a route on Hub-PE that allows receiving AS numbers to be repeated 1 time to receive routes published by Hub-CE

C.

Between Hub-CE and Hub-PE, and between Spoke-PE and Plan-CE, routing information can be exchanged using the OSPF protocol

D.

An MP-IBGP peer relationship is established between Spoke-PE and THE VPN routing information is exchanged.

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Questions 5

Which of the following scenarios send free ARP messages?( Multiple choice questions).

Options:

A.

After the VRRP protocol master and standby role election is completed

B.

The DHCP client receives an acknowledgment message from the server after it sends it

C.

When a new host configured with an IP address is connected to the network

D.

When a host connected to the switch issues a Ping message.

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Questions 6

The following description of the RD attribute filter for BGP is correct?

Options:

A.

If RD-filter is not configured, but the RD-filter is referenced for filtering, the matching result is deny.

B.

If RD-filter is configured, but the routed RD is not matched with any of the RDs defined in the rule, the default match result is permit.

C.

Multiple rules are matched in the order in which they are configured.

D.

There is always an "or" relationship between the rules configured by RD-filter.

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Questions 7

Regarding IPv6 over IP4(19) road, the following statement is correct

Options:

A.

The 6to4 automatic tunnel requires the use of a specific IP6 address segment, and the assigned address segment is preceded by 3ffe::/16

B.

When configuring manual tunneling on the VRP platform, a Tunnel interface is generally created; When configuring automatic tunneling, a Vrua-Template interface is usually created

C.

The ISATAP tunnel determines the destination IPV4 address of the tunnel based on the destination IP6 address.

D.

All automatic tunnels encapsulate data in the same way.

E.

Automatic tunneling has great advantages over manual tunneling, and manual tunneling will be phased out

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Questions 8

Assume that BGP/MPLSIPVVPN, OSPF, LDP, and static routing protocols are already enabled on the PE router . Which of the following protocols need to enable GR on PE in order to get NSF functionality? (Multiple choice questions).

Options:

A.

BGP

B.

Static circuit

C.

OSPF

D.

MPLS LDP

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Questions 9

Is the following description of ospf virtual links correct?

Options:

A.

A virtual connection can be established in any area, after which it itself belongs to the region

B.

The virtual connection ip is used as the link address

C.

Virtual links can be used to solve the problem of zone 0 being segmented

D.

The cost of a virtual connection is zero and is the optimal link

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Questions 10

What is the exact description of the SSM features?

Options:

A.

Using SSM, the receiver can use INCLUDE in IGMPv3 to indicate that the source

B.

SSM he wishes to join is an extension of the DVMP protocol. to efficiently transmit one-to-many communication traffic

C.

SSM requires MSDP to discover active sources in other PIM domains

D.

Routing multicast traffic in the SSM is done by relying on the number of sources, and the RP is used for the receiver to answer the corresponding number of sources

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Questions 11

Regarding the FTP protocol, which of the descriptions below is correct?

Options:

A.

In FTP Passive mode, the client completes the initialization of the TCP session for control and data

B.

In FTP Active mode, the server tells the client which port it expects to send data on by commanding "PORT"

C.

FTP always uses a TCP session to transmit control information and data information

D.

FTP always uses TCP port 20 to establish a data session, and ICP port 21 to establish control will always use E. FTP TCP port 21 to establish a data session, TCP port 20 to establish a control session

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Questions 12

The basic header length of an IPv6 message is a fixed value.

Options:

A.

TRUE

B.

FALSE

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Questions 13

DHCPv6 servers support additional configuration information such as DNS server addresses for hosts.

Options:

A.

TRUE

B.

FALSE

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Questions 14

Regarding the OSPFv3 protocol, what is the error described below?

Options:

A.

Under the sukugan of a shared router, each OSPFv3 process runs independently

B.

Multiple instances can be run in the same OSPFv3 under the same interface

C.

Can support running multiple instances on a single link

D.

OSPFv3 message header will contain instance IDFu Duan flogging

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Questions 15

Which of the following configurations is the correct OSPFv3 route aggregation configuration:

Options:

A.

[Huawei]ospfv3 1 [Huawei-ospfv3-1J]area 1

[Huawel-ospfv3-1-area-0001]abr-summary fc00:0-0:48 cost 400

B.

[Huawei] interface gigabitethernet 1/0/0

[Huawei-GigabitEthernet1/0/0]asbr-surmary fcO0-0:0:48 cost 20

C.

[Huawei]ospfv3 1 [Huawei-ospfv3-1]asbr-surmary fcO0-0:0::48 3 cost 20 tag 100

D.

[Huawei]ospfv3 1 [Huawei-ospfv3-1]abr-surmary fcO0:0:0:48 cost 400

E.

(Huaweijospf3 1 Huawei-ospfv3-1Jarea 1

Huawei-ospfv3-1-area-0001]asbr-sumary fcO0:0:0: 48 cost 20 tag 100

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Questions 16

As shown in the figure, the neighbor relationship between R1 and R2 has just been established, and the database synchronization process between R1 and R2 is correct.

H12-891_V1.0 Question 16

Options:

A.

The message sent by R1 to R2 is a PSNP message

B.

R1 sends the packet of R2 as the CSNP packet. The message sent by

C.

R1 to R2 is an LSP packet. The message sent by

D.

R1 to R2 is the Hello message.

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Questions 17

Is the following information about BGP4+ described correctly?

Options:

A.

BGP4 can use dampening commands to suppress oscillations on IBGP routes.

B.

Modifying the RouterID of BGP causes the BGP connection between routers to be re-established.

C.

The Next Hop attribute in BGP4+ is represented by an IPv6 address, which can be the link-local address of the next hop.

D.

BGP4+ does not support route auto-aggregate

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Questions 18

Is the following figure correct about NDP's process of resolving link-layer addresses?

H12-891_V1.0 Question 18

Options:

A.

Right

B.

Wrong

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Questions 19

In an MPLS BGPVPN networking that does not enable MPLS penultimate hop pop-up technology. When the message reaches the last hop PE, the message has two layers of labels, and the two layers of label values can be the same.

Options:

A.

TRUE

B.

FALSE

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Questions 20

If the Interface Sticky MAC function is enabled, what is the number of MAC addresses that the interface learns by default?

Options:

A.

15

B.

10

C.

5

D.

1

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Questions 21

One of the things you're doing is compressing the length of ip6 addresses as much as possible . The existing IP6 address is

2013xX0C130F006009cO87641308, to be able to make this P6 address more concise, you can compress the IP6 address into which of the following?( Single choice questions).

Options:

A.

2013:0:130F:0:0:09CO:876Answer: 130B

B.

2013:130F::9CO:876Answer: 130B

C.

2013:0:130F:0:0:9CO:876Answer: 130B

D.

213::13F::9C:876Answer: 13B

E.

2013:0:130F::9CO:876Answer: 130B

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Questions 22

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

Options:

A.

TRUE

B.

FALSE

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Questions 23

As shown in the figure, SWA, SWB, SWC all run RSTP, GED/O/2 on SWB Ports and GEO/0/1 ports on SWC have a port role of ? Radio

Options:

A.

Alternative port, Backup port

B.

Backup port, root port

C.

Root port, Designated port

D.

Backup port, Alternative port

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Questions 24

The Serial Number field of LS is used to detect expired and duplicate LSAs. The field is a 32bt signed integer, so the small serial number is Ox8000000

Options:

A.

True

B.

False

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Questions 25

What are the benefits of using WRED?( Multi-select)

Options:

A.

Provides some low latency

B.

Avoid TCP global synchronization

C.

Avoid congestion completely

D.

Provides a small bandwidth guarantee

E.

Can avoid UDP occupying most of the bandwidth when congested

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Questions 26

If we have a VPN instance configured on a router, if we need to view the VPN route on a Huawei router, which of the following commands should we use?

Options:

A.

display ip routing-table vpn-instance vpn-instance-name

B.

display ip routing-table

C.

display vpn routing-table

D.

display ip vpn-instance

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Questions 27

If the topology of the entire network does not change, but the allocation of IP segments in the router changes, ISIS only uses PRC to calculate the changed routing information, and does not recalculate all SPT

Options:

A.

True

B.

False

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Questions 28

Regarding the cross-domain VPN-OptionB scenario, what is the following description incorrect?

Options:

A.

In the process of packet forwarding, the private network LSP of the VPN should be exchanged once on the two ASBRs An EBGP neighbor relationship.

B.

Cross-domain VPN An Option

C.

scheme is not limited by the number of interconnection links between ASBRs

D.

The outer layer label is exchanged between two ASBRs to VPNv4 routes.

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Questions 29

A campus deploys OSPF to achieve network interoperability, and an engineer configures R2 as shown in the figure, then the following description of the LSA in the OSPF network is wrong

H12-891_V1.0 Question 29

Options:

A.

There is no Type3 LsA flooding within Areal

B.

There is no Type3 LSA flooding in Area2

C.

There is Type5 LSA flooding within Areal

D.

Area2 contains Type5 LSA generic adverb

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Questions 30

The authentication types of ISIS include interface authentication, zone authentication, and routed domain authentication

Options:

A.

True

B.

False

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Questions 31

The following description of VLANs in Ethernet is correct?

Options:

A.

VLANs do not support bulk creation on devices

B.

The range of VLANs is 0 to 4096

C.

The default reserved VLANs for Huawei devices are 4000~4010

D.

VLANs can be extended through QinQ technology.

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Questions 32

What mechanisms or techniques can VRRP combine with to monitor uplink connectivity?

Options:

A.

IP-link

B.

BFD

C.

NQA

D.

Interface trace

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Questions 33

How do 8021w and 8021D handle BPDUs?( Confirmed) The

Options:

A.

8021D bridge only forwards BPDU packets received from the root bridge

B.

The 8021D bridge does not forward BPDU messages

C.

The 8021w bridge forwards only BPDU packets received from the root bridge

D.

8021w Bridge does not forward BPDU packet

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Questions 34

If the PIM-SM protocol is running in a multicast network , you need to configure RP, and the configuration equation of RP is divided into dynamic RP and static RP. The following configuration description of the RP is correct (radio).

Options:

A.

When you configure Dynamic RP , you need to configure BSR as a backup of the RP.

B.

When you configure a static RP , you need to configure the BSR to advertise the RP information.

C.

When configuring a static RP, you need to specify the information for the RP on all PIM routers.

D.

When you configure Dynamic RP, you do not need to configure BSR.

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Questions 35

Which of the following IEEE standards is specific to Gigabit Ethernet?

Options:

A.

8023z

B.

8023ab

C.

8023ad

D.

8023af

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Questions 36

There is an existing router running OSPF HWL, HW1 interface serial0 is published in zone 1, configure commands under the OSPF process nssa default-route-advertise, based on the previous description, infers which of the following options are correct?

Options:

A.

When HW1 injects a default route into Zone 1, HW1's local route table can not contain a single default route

B.

HW1 injects a Type 7 default route into Zone 0

C.

HW1 injects a type 7 default route into zone 1

D.

HW1 injects a Type 3 default route into Zone 1

E.

When HW1 injects a default route into zone 1, HW1's local route table needs to answer the default route

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Questions 37

By default, which of the following security MAC address types lose table entries after the device restarts?

Options:

A.

Sticty MAC address

B.

Black hole MAC address

C.

Secure static MAC address

D.

Secure dynamic MAC address

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Questions 38

In a network in MPLSVPN, different CE devices can exchange routing information with the same PE device using different routing protocols, and different CE devices can exchange routing information with the same PE The routing protocols used between devices are independent of each other

Options:

A.

True

B.

False

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Questions 39

The advantages of building a campus network using stacking, clustering technology include which of the following?( Multi-select)

Options:

A.

Improved network equipment and link utilization

B.

It can effectively reduce network power consumption

C.

Business disruption time is greatly reduced

D.

Simplifies network management and reduces the complexity of network deployment planning

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Questions 40

What kind of scenario can use AS one path and one filter?

Options:

A.

Filter routes received from BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.X.x.x as path-filter import

B.

The apply clause in Routepolicy

C.

Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peerx. X.x.x as path-filter export

D.

If-natch clause answer in Route-policy.

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Questions 41

The message types of ISIS mainly include SNP, IIH, and LSP

Options:

A.

True

B.

False

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Questions 42

The interface Serial0 of an existing router is in OSPF area 1, and the interface Serial0 is set to Silent interface. So what kind of impact will this setting have

Options:

A.

OSPF establishes available adjacencies through this interface

B.

OSPF does not add routes learned from the interface to the local routing table

C.

OSPF does not establish any neighboring relationships through this interface D. OSPF receives routing updates from neighbors

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Questions 43

You need to configure smart policy routing on the router to specify that specific traffic is forwarded through an interface. When policy-based routing is applied, what are the two most typical types of information that can be used to forward traffic along a particular path?

Options:

A.

The TTL and source IP address of the packet

B.

Source A address and the Layer 2 source address

C.

Source IP address and specific protocol (such as FTP, HTTP, etc.)

D.

Service type header and message length

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Questions 44

As shown in the following figure, R1 and R2 establish a neighbor relationship for Level2, which is critical: placed as follows, then the following about The route entry for R2 is correct

H12-891_V1.0 Question 44

Options:

A.

The 0:/64 router appears in the IP routing table

B.

2022:/64 Routers appear in the IP routing table c.2019::/64 Routers appear in the P routing table

C.

2021:-/64 Router will appear in the P routing table

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Questions 45

If a Huawei S series switch needs to designate a member switch as the primary switch of the stack, it can power on this switch first, and then power on other member switches after 20s.

Options:

A.

True

B.

False

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Questions 46

The following description of the BGP route reflector is ?( Multiple choice questions).

Options:

A.

Cluster_List is an optional non-staging property for ring protection within the cluster.

B.

The route learned from the client, all non-clients and clients published to this RR.

C.

A network of bones is divided into multiple reflection clusters, each of which configures the other RRs as non-clients, and establishes an IBGP full connection between the RRs.

D.

The Originator_ID attribute is generated by the Route Reflector (RR) for inter-cluster ring protection.

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Questions 47

If you delete a declared route entry on a BGP router, the BGP routing ring is triggered to send an Update message for route scattering, which carries the accepted mandatory attribute of the route entry that was discarded.

Options:

A.

True

B.

False

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Questions 48

Which of the following does the digital certificate not contain?

Options:

A.

Digital envelopes

B.

Issued by

C.

Digital signature

D.

Public key information

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Questions 49

In the use of the CP protocol, the following description is correct?

Options:

A.

The Eth-Trunk interface can be avoided by frequent oscillation interfaceeth-trunkllacppreemptenablelacppreemptdelaydelay-time by following command

B.

Source A address can be configured for load sharing in an enabled link aggregation group with the following command: interface eth-trunk 110ad-balance src-dst-ip

C.

A member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 undo eth-trunk 1 interfaceGigabitEthernet0/0/1undoshutdown

D.

The member interface can be joined in the link aggregation group by enabling the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 trunkport

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Questions 50

If multiple candidate RPs are configured in a multicast group, which of the following parameters does the RP that elect the group from multiple candidate RPs need to be compared?

Options:

A.

The mask length of the group range for the C-RP service that matches the group address that the user joined

B.

C-RP priority

C.

The IP address of the C. C-RP interface Number of

D.

C-RP interface

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Questions 51

The following description of VRRP load sharing is correct?( Multiple choice questions).

Options:

A.

When configuring priority, make sure that the same router acts as a master in the three VRRP backup groups

B.

You can create multiple VRRP backup groups on one interface of a router . The router can act as a master for one VRRP backup group and as a backup for other VRRP backup groups

C.

When you deploy load sharing, hosts in the same LAN are required to configure the IP addresses of different virtual routers as gateway addresses for missing provinces

D.

VRRP load sharing requires at least two virtual routers to provide forwarding services at the same time

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Questions 52

The switch uses IPSG technology to verify the source address of the IP packet, and the verification matrix used by the IPSG is obtained through the ARP resolution process in the listening network

Options:

A.

True

B.

False

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Questions 53

XLAN uses BGP EVPN to establish a tunnel, what type of message is used? ( Single choice questions).

Options:

A.

Typel

B.

Type2

C.

Type3

D.

Type4E. Type5

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Questions 54

The following description of the link state protocol is plausible?

Options:

A.

CPU utilization is high and loops are easy to generate

B.

Slow convergence and low CPU utilization

C.

Fast convergence and low CPU utilization

D.

Fast convergence and high CPU utilization

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Questions 55

The multicast protocol that can generate multicast distribution trees is ?

Options:

A.

IGMPv2

B.

BGP

C.

OSPF

D.

PIMV2

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Questions 56

In the laboratory network, the network is built according to the following topology diagram, SWI is the default configuration, and SW2 disables the switch STP function.

H12-891_V1.0 Question 56

Options:

A.

SG0/0/2 for WI enters the Discarding state

B.

SW2 and G0/0/1 enters the Discarding state

C.

SW2 G0/0/2 enters discarding state

D.

No interface is backed up for blocking

E.

SWI's G0/0/1 enters the Discarding state

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Questions 57

Configuration under a certain interface: isis timer hello 5 level-2, the following statement is correct?

Options:

A.

The hello packets sent at level-1 and Leve1-2 are both 5s

B.

The hello packets sent at level-1 are sent at 5s interval

C.

The level-2 hello packet send interval is 5s

D.

The CSNP packet sending interval for this interface Level-2 is 5S

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Questions 58

As shown in the figure, which of the following options satisfies two routers to establish an ISIS neighbor?( Single choice questions).

H12-891_V1.0 Question 58

Options:

A.

Both routers are of The Level-1 type. B. Both routers remain of the default type.

B.

One of the two routers can be of the Level-1-2 type and the other of the Leve1-1 type. D. The ISIS process numbers of the two routers must be consistent.

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Questions 59

Port isolation technology deployed in Ethernet can realize Layer 2 interoperability and Layer 3 isolation, making networking more flexible.

Options:

A.

TRUE

B.

FALSE

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Questions 60

There are many ways to establish a cluster on a box switch, what methods does Huawei frame switch support to establish a cluster?

Options:

A.

Set up via a cluster card on the motherboard

B.

Establish

C.

through the cluster daughter card on the interface board. Establish

D.

through the service interface on the interface board Established by switching the cluster card on the network board

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Questions 61

As shown in the figure, the use of redundant links between the branch and the headquarters to establish IPsecVPN, while turning on URLPF on the Router_B for traffic from branch l, which of the following options is correct?

H12-891_V1.0 Question 61

Options:

A.

When using IPsec active-standby link redundant backups to enable the URPF function under the physical interface , it is recommended to use URPF loose mode.

B.

When using IPsec multilink redundant backup, the URPF function can be used under the physical interface, and URPF strict mode can be used

C.

When using IPsec multilink redundant backups, urPF can be enabled under the tunnel interface, and URPF strict mode can be used

D.

When using lPsec active-standby link redundancy backup, the URPF function is enabled under the physical interface, and URPF strict mode can be used.

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Questions 62

The following statement about the five types of LSAs in OSPF is used to pass external routes, and the following statement about the five types of LSAs is incorrect and flooding in

Options:

A.

OSPF networks in non-Stub/NSSA regions

B.

Routers in the same zone as ASBR can calculate external routes by chanting the LSA and the five types of ISAs in the region

C.

The FA address is included in the five types of LSAs, and the FA address is 000 only as reserved for no practical purpose

D.

Configuring the appropriate filtering policy on the ABR or ASBR can filter five types of LSAs

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Questions 63

The following statement about EVPN Type5 routing is wrong?( Single choice questions).

Options:

A.

Type5 routes carry Layer 3 VNI.

B.

Type5 routing carries both Layer 2 VWI and Layer 3 VNI

C.

The IP Prefix field can carry both host and network segment addresses.

D.

Type5 is an IP prefix route.

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Questions 64

An engineer performed the ingestion operation on an OSPF router in a network of the company, is the following statement about the introduction of the routing LSA correct?

Options:

A.

The A. Advertising Router report is set to as the Router ID of ASBR

B.

Net Mask is set to all 0

C.

Link State lD is set as the destination network segment address

D.

Using the Link State ID and Advertising Router, you can uniquely identify an LSA

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Questions 65

If there is a switch running RSTP, which interface on that switch sends the BPDU with the Proposal logo??

Options:

A.

The specified port

B.

in the forwarding state. The specified port in a non-forwarding state

C.

Alternate port

D.

The root port in the Blocking state

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Questions 66

What is the following description of MPLS BGPVPN incorrect?

Options:

A.

The TTL field in the label has the effect of preventing loops.

B.

IBGP PEes generally use the Loopback interface address to establish a stable BGP neighbor relationship

C.

BGP So0, which is used to prevent routes issued from a VPN site from passing through the MPLS backbone and back to that site. So0 is an extended group attribute that MP-BGP automatically generates.

D.

The routing exchange between D. PE-CE can be static routing, OSPF multi-instance, IS-IS multi-instance, EBGP

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Questions 67

Which SNMP message type sent to NMS reports events that are reliable? ( Single choice questions).

Options:

A.

Inform

B.

Get

C.

Response

D.

Trap

E.

Get Bulk

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Questions 68

When a Layer 3 switch sends IP packets originating from one VLAN to another LAN, which field in the following options is overridden?( Single choice questions).

Options:

A.

Three layers of TTL

B.

Layer 3 destination address

C.

Layer 3 source address

D.

Layer 3 Transport Protocol

E.

Two-tier TTL

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Questions 69

The role of Link-LSA in OSPFv3 does not include ?

Options:

A.

Advertise to other routers on the link optional that is set in the Network LSA from which this link originates

B.

Advertise the per-port ID of this router to other routers on the link

C.

Advertise the link-local address

D.

of this interface to other routers on the link Advertise this IPv6 prefix list to other routers on the link

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Questions 70

Router HW1 exists in the carrier HW's network as an MPLSLSR router. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle that message?

Options:

A.

Router HW1 strips off the label and looks for the FIB using the P destination address

B.

Router HW1 uses LDP to create an LSP and creates a new path in LFIB for the label carried in the message

C.

Router HW1 drops the message

D.

Router HW1 will forward the message with the default label

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Questions 71

In the use of the LACP protocol, the following description is correct ?( Multiple select).

Options:

A.

You can avoid the Eth-Trunk interface from frequently shaking interface eth-trunk 1l lacp preempt enable lacp preempt delay delay-time with the following command

B.

Source IP address load sharing, interface eth-trunk1Load-balance src-dst-ip, can be configured in an enabled link aggregation group with the following command

C.

The member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthemeto/0/1 Shutdown nterface Gigabithemet/O/1undo eth-trunklinterface GigabitEthemet0/0/1 undo shutdown

D.

A chain cluster that can be initiated through an order Join the member interface :interface GigabitEthemeto/0/1 shutdown interface igabitEthemetO/0/1 tunkportGigabitEthermet0/0/1 interface GigabitEthermet0/0/1 Undo shutdown

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Questions 72

What are the ways to divide VLANs in Huawei switches? ( Multi-select) A Subnetting based on IP.

B. Division based on QoS

C. Partitioning based on port

D. Division based on protocol

E. Division based on MAC address.

Options:

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Questions 73

A bookstore provides a wired network for customers to learn online. However, one day, it was found that some users could not access the network, and after inspection, it was found that the IP resources of the DHCP address pool had been exhausted. Which of the following is the best way to solve the problem of the moment? ( Single choice questions).

Options:

A.

Configure the static ARP binding table

B.

Configure the IPSG

C.

Limits the maximum number of DHCP Snooping binding table entries that the interface allows to learn

D.

Configuration DAI

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Questions 74

Deploying the ISIS protocol in an IPv6 environment is true in the following statement (radio).

Options:

A.

By default, the DIS priority of broadcast network interfaces at Level-1 and Level-2 is 1 B In broadcast networks, the DIS priority for IPV4 and IPV6 can be set separately

B.

In the same broadcast network. If each router supports both IPV4 and Pv6, the DISC of JPV4 and Pv6 must be the same device

C.

IS-IS sient is configured under the finger port, this interface will not send ISIS packets, but will receive ISIS packet

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Questions 75

There is a new HW office that needs to use their router as a DHCP server. When configuring the DHCP server to provide DHCP services to the current office, what of the following items need to be configured?

Options:

A.

Exclude unused IP addresses from the DHCP server

B.

Configure the timeout period for ping packets

C.

Configure the startup file for the DHCP server

D.

Configure manual binding

E.

Configure dhcp address pool

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Questions 76

The following statement about isis a route leak of ISIS is correct?

Options:

A.

Route leaks for ISIS must be deployed on Level-1 routers

B.

Route disclosure for ISIS is turned on by default.

C.

Route disclosure for ISIS avoids suboptimal paths.

D.

Route leaks for ISIS can only be applied to IPv4 environments.

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Questions 77

The following statement about IPv6 Over VXLAN is wrong as ?( Single choice questions).

Options:

A.

The tunnel between VXLAN Layer 2 and Layer 3 gateways is an IPv4 network.

B.

IPv6 over VXLAN solves the problem of insufficient IP address resources for end tenants.

C.

IPv6 Over VLANs do not generate ND table entries.

D.

IPv6 over VXLAN means that the Overlay network of the VXLAN is an IPv6 network.

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Questions 78

Cross-device link aggregation realizes the back-to-back transmission of data traffic and the mutual spare of the heap member switches, but due to the limited bandwidth of the heap cable between the heap devices, the forwarding efficiency can be improved in the following ways?

Options:

A.

Enable traffic to be forwarded locally first

B.

Connect the stacking device via a stacking card

C.

Configure the stacking system MAC address switching

D.

Enables the stacking multi-master check function

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Questions 79

Regarding route introduction, the following description is correctly ?( Multiple choice questions).

Options:

A.

OSPF introduces two types of external routes, with the first type of external route taking precedence over the second type of external route.

B.

Use the default-route imported command in BGP only to introduce default routes that already exist in the local IP routing table.

C.

When ISIS introduces an external route, if you do not specify the route type that is introduced, the Level-1 route is introduced by default on the L1/2 router

D.

When ISIS introduces an external route, if you do not specify the type of route that is introduced, the Leve1-1 route is introduced by default on the L1 router .

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Questions 80

Regarding the Stub region and the NSSA region of the OSPF protocol , the following statement is incorrect with a single choice

Options:

A.

Neither the Stub region nor the NSSA region allows injection of Type4 LSA

B.

Type5 LSA injection is not allowed in the Stub region, while Type5LSA injection is allowed in the NSSA region

C.

Type7LSA injection is not allowed in the Stub region, while Type7LSA injection is allowed in the NSSA region

D.

Both the Stub region and the NSSA region allow injection of Type3 LSA

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Questions 81

An engineer uses 2 routers to test Pv6 services and runs OSPFV3 to achieve interconnection and interoperability of IPV6 networks The RI has access to the loopback address of R2 The engineer looks at ri's OSPF3 routing table entry and finds that there is no route reaching the R2 loopback address It can't be caused by which of the following?

Options:

A.

R2 does not enable OSPFv3 on the loopback port

B.

R2 does not advertise the loopback address

C.

R2 in area 0 to advertise the loopback into a different OSPFv3 process

D.

R2 does not configure the Router ID used in the OSPFv3 process

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Questions 82

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

Options:

A.

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

B.

Can prevent wireless circular forwarding of messages

C.

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

D.

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

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Questions 83

Regarding Route Policy, is the following description correct?

Options:

A.

Advanced ACLs can be applied in route-policy to filter routes

B.

The table entries pernit::0 Less an equal 128 indicate that all IPV6 routes are allowed through

C.

If more than one node is defined in Route one policy, there should be at least one node in each node that matches permit

D.

Route one policy filters only the default route

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Questions 84

In the city, that is, mpLS BGPVPN network, when the packet enters the public network forwarding, it will be encapsulated with two layers of MPLS tags, the following description of the two layers of tags, the error is ?

Options:

A.

Private network tags are carried and distributed by MP-BGP when routing, and public network tags are distributed by the LDP protocol.

B.

MPLS BGPVPN uses two layers of tags: public labels (also known as outer labels) and private network labels (also known as inner labels).

C.

By default, the router assigns the same tag value to all VPNv4 routes destined for the peer

D.

The egress PE uses the inner tag when determining which egress CE the message should be sent to.

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Questions 85

A medium-sized campus network manages the network through the SNMP protocol, and the campus is highly network-safe, so which version of SNMP is recommended for management?

Options:

A.

SNMPv1 B. SNMPv2C

B.

SNMPV3

C.

All versions are available to implement

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Questions 86

Regarding BGP route filtering, the following description is wrong?

Options:

A.

The filtering relationship between Route-Policy's noodes is "or." ", that is, as long as a node filter is passed, it can pass through the Route-policyo

B.

For routes published locally, configure a routing policy that takes effect before the route is added to the BGP route table.

C.

In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.

D.

When a route to a BGP peer is received, a routing policy is enforced to filter unwanted BGP routes that are not added to the local BGP routing table.

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Questions 87

In VXLAN scenarios, what features can be turned on to reduce flooding of ARP messages between VTEPs?( Multiple select).

Options:

A.

Host Information Collection

B.

Local ARP agent

C.

port isolation

D.

ARP broadcast suppression

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Questions 88

What check frames can IPSG set?

Options:

A.

Out of the interface

B.

MAC address

C.

IP address

D.

VLAN ID

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Questions 89

QinQ technology is a technology that extends the VLAN space by adding a layer of 8021Q tag messages to the extended VLAN. The function of space, the following statement about QInQ is mispronounced?

Options:

A.

basic QinQ is implemented based on the interface orientation

B.

QinQ increases the number of VLANs to 4095*4095

C.

Flexible QinQ can be based on different inner layerS Tag and different outer layers of Tag, for user VL The division of AN is more granular

D.

QinQ technology enables private VLANs to pass through the public Network

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Questions 90

The Layer 3 logical interface on XLAN L3 Gateway that enables communication between different VXLAN virtual networks is ?

Options:

A.

Layer 2 sub-interface

B.

NVE interface

C.

VBDIF interface

D.

VLANIF interface

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Questions 91

Host HW1 in the HW device network Wants to join a video conference, so what does that host do?

Options:

A.

Sends an IGMPv2 membership report to the default router unicast of the local network

B.

Sends a unicast IGMPv2 membership report to the RP

C.

The IGMPv2 membership report is sent over multicast in the local network, and the multicast address carried in the IGMPv2 membership report is the multicast address that you want to join

D.

The IGMPV2 membership report is sent over multicast in the local network, and the destination multicast address of the IGMPv2 membership report is "All PIM Routers" 224002 Multicast address

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Exam Code: H12-891_V1.0
Exam Name: HCIE-Datacom V1.0
Last Update: Mar 26, 2024
Questions: 610

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