H12-891_V1.0-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
The following statement about the NSSA area is correct (multiple choice).

A.In the NSSA area where the OSPF neighbor sends hello packets, the N position 0, E within the option field Position 1
B.The NSSA zone must automatically generate a default LSA to access the external network
C.The NSSA zone generates a Category VII LSA to advertise external routing, and the FA address in the Category VII LSA acts to prevent loops
D.In the OSPF neighbor in the NSSA region sends hello packets, position 1 within the option field, position E

正解:

Question No : 2
BGP routing policies can control the publication and acceptance of routes

A.TRUE
B.FLASE

正解:

Question No : 3
To implement the traffic filtering function, you can use trapp-filter or MQC, which can be called in more views than traffic-filter

A.FALSE
B.TRUE

正解:

Question No : 4
A VRRP virtual router configuration VRID is 3 and the virtual IP address is 100 1. 1. 10, so what is the virtual MAC address?

A.O0-00-5E-00-01-64
B.01-00-5E-00-01-03
C.01-00-5E-00-01-54
D.00-00-5E-00-01-03

正解:

Question No : 5
What is the wrong description of the function of OSPFv3 protocol authentication?

A.OSPFv3 can only establish a security alliance SA using manual mode
B.Huawei router OSPFv3 IPSec authentication can not only support transmission mode, but also support tunnel mode
C.OSPFv3 authentication relies on IPv6 packet authentication headers and encapsulation security net load headers
D.The OSPFv3 protocol header removes the Type and Automation fields

正解:

Question No : 6
A home user has opened a 1Mb/s bandwidth, and in order to improve the user experience, the operator can stabilize 2Mb/s when measuring speed If we use the listening bucket technology to achieve this requirement, which of the following methods is optimal.

A.cir 10000 pir 12000
B.cir 10o00 cbs 12000 pbd 12000
C.cir 8000 pir 12000
D.cir 10000 cbs 10000 pbs 12000

正解:

Question No : 7
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).

A.Three layers of TTL
B.Layer 3 destination address
C.Layer 3 source address
D.Layer 3 Transport Protocol
E.Two-tier TTL

正解:

Question No : 8
The following description of the characteristics of multi-instance CE is?

A.Since the MCE device is already bound to the VPN, there is no need to bind the VPN on the PE connected to the MCE device
B.The MCE device can determine the source of the routing information according to the interface that receives the routing information, and maintain it in the route forwarding table of the corresponding V
C.MCE is implemented by creating their own routing forwarding tables for different VPNs on the MCE device and binding to the corresponding interface o
D.Configuring MCE enables a CE to connect to multiple VPNs at the same time, which can not only completely isolate the service between different VPN users, but also reduce the input cost of network equipment.

正解:

Question No : 9
The switch can suppress traffic by suppressing traffic and extremely other failures can affect operations, which of the following traffic suppression configurations is the wrong configuration

A.[Quidway] wan 10 [Quidway-wan10] multicast-suppression 1000 [Quidway-van10] quit
B.[Qudway ineface gigabtethemnet /0'1 [Quidway-GigabitEfthemetO0/O/1]multicast-suppression 80TQuidway- GigabitEthernet0/0/1]quit
C.Quidway inteface gigabiethenet ou0/1 [Quidway-GigabtEthernet/0/1J,broadcast-suppression 80 IQuidway-GigabitEthernet//1]Jqut
D.[Quidway] icmp rate-limit enable [Quidway] icmp rate-limit total threshold 20
E.[Quidway ] wan 10 [Quidway-wani0] broadcast-suppression 1000 [Quidway-van10] quit

正解:

Question No : 10
CORRECT TEXT
The following about BGP routing, describing the error, is?
A, non-aggregate routes take precedence over aggregate routes
B. In PrefVal, Local_ Preference is equal to the case if the route is generated locally, IBGP Routing, the BGP preference for EBGP routing, is generated effectively referring to route priority.
C. See the following entry in the BGP routing table:* 172161.11/32 000010 0? Indicates that the route is available non-optimal
D. For next_hop unreachable routes when invalid routes, do not participate in the preferred.

正解: A

Question No : 11
There is an As-path-filter.ip as-path-filter 1 permit*(100l400) $, which As-path-filter can match which of the following AS_PATH Attribute? (Confirmed).

A.300 4200
B.1234 1400
C.3100
D.100

正解:

Question No : 12
Router HW enables OSPF and router HW has the role of ABR and is configured with abr-summary, then which class LSA Will it be aggregated?

A.1 Class LSA
B.2 kind LSA
C.3 kind LSA
D.4 kind LSA
E.5 Class LSA

正解:

Question No : 13
What of the following actions can enable fast failure detection on multicast networks?

A.Shorten the Holdtime of Join/Prune messages
B.Reduce the interval at which the interface sends Hello messages
C.A PIM BFD session is established between neighbors
D.Reduce the interval between sending Join/Prune messages

正解:

Question No : 14
In order to reduce the number of OSPF routes in certain areas, the OSPf protocol has developed special area functions, and the following description of the characteristics of OSPF special areas is correct

A.ASBR-Sunmary-LSA is allowed to be published to the NSSA region
B.AS-External-LSA is allowed to be published to the Stub region
C.Any OSPF zone can be configured as a special zone
D.Zone can be equipped with zhiyi

正解:

Question No : 15
A switch joins a running stacking system after powering up, a behavior known as heap overlay.

A.TRUE
B.FALSE

正解:

Huawei H12-891_V1.0-ENU 問題練習