H12-891_V1.0-ENU問題集、Huawei実際の試験問題

質問 1

CORRECT TEXT
When the BFD detection intervals on both ends are 30ms and 40ms, are the following options described correctly? An

A. BFD session can be established, which takes 30ms after negotiation

B. BFD sessions can be established, each occurring at its own interval

C. BFD session can be established, which takes 40ms after negotiation

D. BFD sessions cannot be established

正解: B

質問 2

IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculations. As shown in the figure, at the same time, a certain area has IPV4 and IPV6 and runs IS-IS to achieve network interconnection, of which R2 only supports IPV4 Regarding the topology calculation of the network, which of the following statements is correct?

A. If you want the IPv4 and IPv6 networks to compute the same shortest path tree. The IPv6-enable topology lpv6 command is required to enable the Russian force of IPv6 under the IS-IS process

B. By default, IPv4 and IIPV6 networks are computed separately to form different shortest path trees

C. By default, in the shortest path tree formed by the IPv6 network calculation, R1 accesses R4 as R1-R2-R4, since R2 does not support IPv6. Therefore, R2 will directly drop the IPv6 packet after receiving it, and select the traffic loss

D. By default, IPv6 is not supported because R2. Therefore, in the shortest path tree formed by the JPv6 network computation, the path where R1 accesses R4 is: R1-R3-R4

正解: C

質問 3

Regarding the description of the security level of the configured firewall security zone, the error is?

A. Once the security level is set, it is not allowed to change

B. For newly created security zones, the system defaults to a security level of 1

C. Two security zones are not allowed to configure the same security level in the same system

D. You can only set the security level for a custom security zone

正解: B

質問 4

The following statement about ISIS (IPv6) is correct?

A. By default, IS-IS has the multi-topology feature turned on

B. IS-IS works at the data link layer and only needs to add a new TLV to support IPv6

C. To support the processing and computation of IPv6 routes, IS-IS has added NLPID to the 129TLV

D. In order to support the processing and calculation of IPV6 routes, IS-IS has added TLV232, 236

正解: B,C,D

質問 5

Protocols with TCP ports 443, 179, 137, 110, and 23 are, in order: radio

A. HTTPS, SNMP, POP3, DNS, Telnet

B. Finger, DHCP Server, NetBios Name Server, POP3, TelnetB

C. LDAP, SNMP, TFTP, POP3, Telnet

D. HiPS, BGP, NetBios Name Server, POP3, TelnetE. BGP, POP3, SNMP, TFTP, Teinet

正解: D

質問 6

LDP messages are exchanged between LDLRs running the LDP protocol, and LDP messages can be divided into four types according to function, which of the following is not an LDP message type?

A. Label Exchange Information

B. Discover message

C. Advertisement message

D. Conversation message

正解: A

質問 7

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?

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

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

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

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

正解: B

質問 8

The correct description about the BGP reflector is? (Multiple choice questions).

A. The route reflector can advertise routes learned from non-clients to all clients

B. The route reflector can advertise routes learned from one client to other clients and non-clients

C. The route reflector can advertise routes learned from IBGP neighbors to all clients and non-client

D. IBGP neighbor relationships need to be fully interconnected without a route reflector. The introduction of route reflectors can reduce the need for full interconnection

正解: A,B,D

質問 9

Unlike STP, RSTP has only one BPDU type, its value is 2, and there is no TCN BPDU.

A. FALSE

B. TRUE

正解: B

質問 10

In a data communication session between two hosts, which level does the session layer of the oSI model of the host on one end communicate with the osl mode of the host on the other end?

A. Communicate with the presentation layer at the other end

B. Communicate with the physical layer at the other end

C. Communicate with the conversation layer on the other end B Communicate with the application layer at the other end

D. Communicate with the data link layer at the other end

正解: C

質問 11

Man-in-the-middle attacks or IP/MAC spoofing attacks can lead to information leakage and other hazards, and are more common in the intranet, in order to prevent man-in-the-middle attacks or IP/MAC spoofing attacks, you can take the configuration method

A. Enable DHCP snooping to check the chaddr field in a DHCP request message

B. Configure the trusted/untrusted interface

C. Configure DHCP snooping on the switch to interbolde with DAI or IPSG

D. Limit the maximum number of MAC addresses allowed to be learned on the switch interface

正解: C

Huawei HCIE-Datacom V1.0 - H12-891_V1.0-ENU 模擬練習