Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) - H12-261-ENU Free Exam Questions

A. If as-set is configured, the AS_Path of the generated summarized route contains AS_Paths of all specific routes. This avoids routing loops.

B. If suppress-policy is configured, the summarized route can be generated, the if-match clauses of the route-policy can be used to selectively suppress specific routes. Those specific routes that match this route-policy will still be advertised to other BGP peers.

C. If attribute-policy is configured, attributes can be set for the summarized route.

D. If origin-policy is configured, only the specific routes that match the route-policy are used to generate the summarized route.

A. The virtual link can be used to solve the problem that area 0 is divided.

B. The cost of the virtual link is the optimal link.

C. The virtual link uses the outbound interface P as the link address.

D. A virtual connection can be established in any area, and itself belongs to the area after it is established.

A. HTTPS protocol uses TCP port 443 by default.

B. When using HTTPS to access a website, if the user's browser does not recognize the digital certificate of the website, the website cannot be accessed.

C. HTTPS secures access to data by using SSL VPN.

D. If the HTTPS traffic contains a virus, the router cannot directly detect the virus using IPS technology.

A. Type 1 LSA

B. Type 3 LSA

C. Type 4 LSA

D. Type 2 LSA

E. Type 5 LSA

A. By default, the default metric of the external route redistributed by OSPF is 1, and the imported external route type is Type2.

B. Introducing IBGP routes in OSPF may cause routing loops.

C. bgp supports both import and network when generating routes. Network mode is more accurate.

D. After ISIS's level-2 network route is imported to the level-1 network, if the import policy is not manually configured, a routing loop is formed.

A. Malformed packet attack

B. Scanning detection attacks

C. DDoS attack

D. Special control packet attack

A. TC-BPDU protection

B. Loop protection

C. Root protection

D. BPDU protection

A. OSPF state changes to FULL, will trigger BFD sessions UP

B. If the R2 Ethernet0/0/0 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.21.2.

C. If the R2 Ethernet0/0/1 interfaces down, then R1 BFD session can quickly detect the failure and notify the R1 to make the OSPF neighbor relationship down

D. If R2 close BFD function, BFD session of R1 goes down, it will lead ospf neighbor relationship down

E. If the R2 Ethernet 0/0/1 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.12.2.

A. You can prevent the Eth-Trunk interface from frequently oscillating due to physical link by using the following command: interface eth-trunk 1 lacp preempt enable lacp preempt delay delay-time

B. You can configure the source IP address for load balancing in the enabled link aggregation group by using the following command: interface eth-trunk 1 load-balance src-dst-ip

C. You can add member interfaces to the enabled link aggregation group by using the following command: interface Gigabitethernet0/0/1 shutdown interface Gigabitethernet0/0/1 trunkport Gigabitethernet0/0/ interface Gigabitethernet0/0/1 undo shutdown

D. You can remove a member interface in an enabled link aggregation group by using the following command: interface Gigabitethemnet0/0/0 shutdown interface Gigabitethernet0/0/1 undo eth-trunk 1 interface Gigabitetheret0/0/ undo shutdown

A. Consume available bandwidth

B. Occupy the memory of cached frames

C. Consume available MAC address entries in the system

D. Increase the power consumption of the power supply

E. Occupy TCAM entries

A. Both VRRPv2 and VRRPv3 support authentication.

B. VRRPv2 is only applicable to IPv4 networks, and VRRPv3 is only applicable to IPv6 networks.

C. VRRPv3 does not support authentication, while VRRPv2 supports authentication.

D. The owner of the Mater IP address has VRRP priority of 255, so the priority range that can be configured is 0-254.

A. The GR of ISIS notifies the event and maintains the neighbor relationship through the CSNP message.

B. The GR feature of ISIS is enabled by default.

C. The GR of ISIS defines a new TLV structure to support this feature.

D. The GR of ISIS has a total of four timers.

A. False

B. True

A. R3 must be a DIS of a Level-2 link

B. R3 must be a DIS of a Level-1 link

C. The system ID of the R3 router is 0003.0000.0000.0000

D. R3 router is a Level-1-2 router