H12-221 HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) Questions and Answers

510

512

1022

2046

[Quidway]show ip igmp interface

[Quidwayjdisplay igmp interface

[Quidway]show ip igmp

[Quidwayjdisplay ip interface

255.255.0.0

255.255.224.0

255.255.24.0

Different based on the address type

Tag

Cost

Interface

Nexthop

BGP runs over TCP.

BGP is an enhanced distance-vector routing protocol.

BGP uses port number 189.

BGP is an inter-AS routing protocol.

TRUE

FALSE

TRUE

FALSE

The route 10.1.0.0/16 matches node 10 and its cost is set to 300.

The route 10.1.0.0/16 matching node 10 also matches node 20 and its final cost is set to 200.

Costs of all routes will be set to 200.

All routes that fail to match node 10 will be denied.

Open

Hello

Route-refresh

Keepalive

Telnet

Send Hello packet

UDP

TCP

If 2-byte AS values are supported, the private AS number ranges from 32768 to 65535.

If 2-byte AS values are supported, the private AS number ranges from 64512 to 65535.

If 2-byte AS values are supported, the AS number ranges from 1 to 65535.

If 4-byte AS values are supported, then the 4-byte AS number is in the x.y format. Here, "x" and "y" are integers ranging from 1 to 65535 and 0 to 65535 respectively.

195.26.0.0/21

195.26.16.0/20

195.26.8.0/22

195.26.20.0/22

TRUE

FALSE

All routers in the same AS must use the same MD5 password.

A pair of BGP peers must use the same MD5 password.

All BGP peers must use the same MD5 password.

Every BGP peer of a router must use a unique MD5 password.

Source address

Port number

Destination address

Packet length

Routes received carrying this value cannot be advertised outside of the confederation.

Routes received carrying this value cannot be advertised to any BGP peers.

Routes received carrying this value cannot be advertised to any EBGP peers.

All above statements are wrong

Both ACL and IP-Prefix can perform route filtering

Both ACL and IP-Prefix can perform data packet filtering

ACL can perform data packet filtering and route filtering, but IP-Prefix can only perform route filtering

IP-Prefix can perform data packet filtering and route filtering, but ACL can only perform route filtering

The router with a higher Router Priority has a higher DR election priority.

When two routers have the same Router Priority, the one with a larger value for Router ID has a higher DR election priority.

If a DR fails, the BDR automatically takes over as the DR and a new BDR is elected.

If a BDR fails, the DR will not take over as the BDR and waits for the fault recovery to handle the situation. No new BDR will be elected.

Broadcasts all routes periodically

Update all routes periodically using multicast addresses

Updates only changed and new routes

Updates routes on BGP peer requests

The default-route-advertise command is used to generate a type-7 default route.

The no-import-route parameter prevents the import of AS external routes in the form of Type-7 LSAs into an NSSA.

The no-summary parameter prevents the advertisement of Type-3 and Type-4 LSAs in an area.

The set-n-bit parameter indicates that an N-bit will be set in a DD packet.

1.2.3.0/24,1.2.4.0/24, 1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24

1.0.0.0/8,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24

1.2.3.0/24,1.2.5.0/24,1.2.7.0/24

1.2.0.0/16,1.2.4.0/24,1.2.6.0/24,1.2.8.0/24

TRUE

FALSE

The neighbor state can transition from "Down" to "Exchange".

The neighbor state can transition from "Down" to "Init".

The neighbor state can transition from "Init" to "Exstart".

The neighbor state can transition from "Init" to "2-Way".

TRUE

FALSE

TRUE

FALSE

TRUE

FALSE

The Type-1 external metric is the sum of the external metric and the internal cost to reach an ASBR.

The Type-2 external metric uses only the AS external metric.

The metric of an external route is the sum of the AS external metric and the AS internal metric.

The effects of setting Forwarding Address to a non-zero value is that the next hop of the external route imported into OSPF is within the OSPF routing area.

Reset bgp

Refresh bgp all external

Refresh bgp all internal

RR-filter

All BGP routes learned from BGP peers are advertised to other BGP peers,

Only the routes learned from an IGP are advertised to other BGP peers.

By default, the routes learned from IBGP peers are not advertised to other IBGP peers,

Only the optimal routes are advertised to other BGP peers.

Link ID

Data

Network Mask

Metric