H12-261_V3.0-ENU 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
In OSPFv3, a Router-LSA is generated for each router, which describes the interface address and cost of each router link, and includes the Router ID of the neighboring router.

A.True
B.False

正解:

Question No : 2
Regarding the MPLS processing mode for TTL, which of the following descriptions is correct?

A.In Pipe mode, when an IP packet passes through an MPLS network, at the ingress point, the IP TTL minus 1 is mapped to the MPLS TTL field
B.The TTL in the MPLS label has the same meaning as the TTL field in the IP header. TTL prevents routing loops in MPLS networks
C.In Unifor mode, when IP packets pass through the MPLS network, the IP TTL of the ingress point is decremented by 1. MPLS TTL field is a fixed value
D.In MPLS VPI, if you need to hide the structure of the MPLS backbone network, you can use the Uniform mode on the Ingress for private network packets.

正解:

Question No : 3
Which of the following statements about the VRRP protocol is correct?

A.Both VRRPv2 and VRRPv3 support authentication
B.VRRPv3 does not support the authentication function, while VRRPv2 supports the authentication function
C.VRRPv2 is only applicable to IPv4 networks, VRRPv3 is only applicable to IPv6 networks
D.The owner's VRP priority of the Master IP address is 255, and all configurable priorities range from 0 to 254.

正解:

Question No : 4
Which of the following statements about ISIS' route penetration is correct? (Multiple Choice)

A.ISIS routing penetration can be used in |Pv6 environment.
B.ISIS routing penetration can be deployed on Level-1 routers.
C.ISIS' route penetration does not include aggregated routes.
D.ISIS route penetration does not cause neighbor flapping.
E.ISIS route penetration is used to prevent routing loops.

正解:

Question No : 5
In a VXLAN scenario, which features can be enabled to reduce the flooding of ARP packets between VTEPs? (Multiple Choice)

A.Host Information Collection
B.Local ARP proxy
C.Port isolation
D.ARP broadcast suppression

正解:

Question No : 6
Which of the following options is correct about the optimal route election for various protocols?

A.Route entries with unreachable next hops in BGP are also put into the IP routing table.
B.In the BGP protocol, the optimal route to the same destination network segment is selected by comparing the cost value of the route entry.
C.The OSPF protocol will put all the routing information in the LSDB into the IP routing table.
D.Learn different route entries to the same destination network segment from BGP and OSPF, and select the optimal route to add to the IP routing table by comparing the preference value of the protocol.

正解:

Question No : 7
After an interface of the firewall is assigned to the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone.

A.TRUE
B.FALSE

正解:

Question No : 8
Which of the following statements is correct when configuring source NAT with no-pat configuration parameters?

A.Perform destination IP address and destination port translation
B.Only perform source IP address translation
C.Only perform destination IP address translation
D.Simultaneous source IP address and source port translation

正解:

Question No : 9
In the process of establishing an LDP session, the active party will first send Initialization information to negotiate parameters. If the passive party does not accept the negotiated parameters, which of the following packets will be sent?

A.Hello Message
B.Error Notification Message
C.Keepalive Message
D.Initialization Message

正解:

Question No : 10
MPLS is called Multi-Protocol Label Switching, which is correct about the label description in MPLS? (Multiple Choice)

A.MPLS system has a variety of label distribution protocols, such as LDP is a label distribution protocol
B.The label is carried by the header of the MPLS packet and has global significance, that is, the label value of all routers cannot be repeated
C.The label is a fixed-length identifier with only local significance, which is used to uniquely identify the FEC to which a packet belongs
D.MPLS supports single-layer labels as well as multi-layer labels

正解:

Question No : 11
BGP authentication can prevent illegal routers from establishing neighbors with BGP routers. BGP authentication can be divided into MD5 authentication and Keychain authentication.
Which of the following BGP packets will carry BGP Keychain authentication information? (Multiple Choice)

A.Update
B.Notification
C.Keeplive
D.Open

正解:

Question No : 12
Which of the following statements about the IS-IS protocol is false?

A.IS-IS protocol is a link state protocol that runs between ASs
B.IS-IS protocol supports CLNP network
C.IS-IS protocol packets are directly encapsulated by the data link layer
D.IS-IS protocol supports IP network

正解:

Question No : 13
The following descriptions about Link ID, Data, Type and Metirc in Router-LSA, which are correct? (Multiple Choice)

A.Metric describes the cost of this connection
B.Link ID indicates the local identification of this connection, and different connection types indicate different meanings of Link ID
C.Data is used to describe the additional information of this connection, and the information described by different connection types is also different
D.Type indicates the type of connection

正解:

Question No : 14
In BGP4+, what is the content of the next hop network address field carried by the MIP_REACH_NLRI attribute in the Update packet?

A.Can be just a link-local address
B.Only link-local addresses
C.Can carry link-local addresses and global unicast addresses at the same time
D.Can only be a global unicast address

正解:

Question No : 15
In the multi-level RR scenario, a large number of secondary RRs will be connected to the primary RR, which may cause the BGP routing table of the primary RR to overflow.
What method can be used to reduce the risk of overflowing the the primary RR BGP routing table?

A.ORF
B.Routing Control
C.Route Aggregation
D.Set the same Cluster-ID

正解:

Huawei H12-261_V3.0-ENU 問題練習