最新的Huawei HCIP-Datacom-Core Technology V1.0 - H12-821_V1.0-ENU免費考試真題

A. Dual-link cold backup

B. N+1 backup

C. Dual-link hot backup

D. VRRP dual-machine hot standby

A. 20.0.1.0/24

B. 20.0.1.0/23

C. 20.0.0.0/28

D. 20.0.0.0/25

A. route-policy can only match routes and data packets, and cannot be used to modify routing attributes or data packet forwarding behavior

B. Prefix list (ip-prefix) matching object is the destination address of routing information

C. as-path-filter is used to match the AS-PATH attribute in BGP routing information, so it can only be used to filter BGP routes

D. The access control list (ACL) is used to match the IP routing information or the address of the data packet

A. FALSE

B. TRUE

A. By modifying routing attributes, network data traffic can be reasonably planned to improve network performance.

B. Can save system resources by controlling the size of the router's routing table.

C. Can modify routing attributes, but cannot change the path that network traffic passes through.

D. Able to improve network security by controlling the reception, publishing and introduction of routes

A. Advertising Router indicates the Router ID of ASBR

B. Net mask indicates the network mask of the destination network segment

C. Forwarding Address is always 0.0.0.0

D. Link State ID indicates the destination network address

A. A traffic policy containing flow mirroring behavior is applied on the interface. The mirror port is a port connected to the monitoring device and is used to output the packets copied from the mirror port.

B. Analyzing and monitoring port flow mirroring is a type of traffic behavior. When applied on a device, it is actually performed globally, in a VLAN or on a terminal.

C. The implementation of the mirroring function requires cooperation with monitoring equipment. The monitoring equipment is mainly used to analyze the received mirroring messages.

D. Port mirroring means that the device copies a packet passing through the mirrored port and transmits the packet to the designated observing end.

A. RootPort

B. Designated Port

C. Backup Port

D. Alternate Port

A. The prefix list is used to filter the IP prefix, which can match the prefix number and prefix length at the same time

B. The prefix list can be used for packet filtering

C. The prefix list is used to filter IP prefixes, and cannot match the prefix number and prefix length at the same time

D. The prefix list cannot be used for packet filtering

A. Network-Summary-LSA is generated by ASBR

B. The Link State ID in the Network-Summary-LSA is set to the IP address of the destination network

C. The Net mask in the Network-Summary-LSA is set to the network mask of the destination network segment

D. The Metric in the Network-Summary-LSA is set to the cost value from the ABR to the destination network segment

A. MSTP can realize the load sharing of traffic among different LANs

B. More port roles than RSTP.MSTP

C. MSTP supports compatible operation with RSTP

D. The BPDU format of MSTP is the same as that of RSTP

A. vrrp vrid 1 preempt-delay 20

B. vrrp vrid 1 preempt-timer 20

C. vrrp vrid 1 timer delay 20

D. vrrp vrid 1 preempt-mode timer delay 20