Huawei H12-261_V3.0-ENU 問題集

質問 1：
The router HW1 exists as an MPLS LSR router in the network of the operator HW. The router receives a packet carrying a label, but the label entry does not exist in its LFIB.
So how does the router handle the message?
A. Router HW1 will strip the label and find the IP destination address of the FIB.
B. Router HW1 will forward the message using the default label.
C. Router HW1 uses LDP to create an LSP and creates a new path for the label carried in the packet in the LFIB.
D. Router HW1 will discard the message.
正解：D

質問 2：
Network managers can use CAR technology in traffic monitoring.
Which of the following technologies can be applied in CAR? (Multiple Choice)
A. Single-barrel single-speed
B. Double-barrel double-speed
C. Double-barrel single-speed
D. Three-barrel single-speed
正解：A,B,C

質問 3：
egarding MP-BGP, which is wrong in the following description?
A. MP-BGP's message type and VPNv4 route advertisement policy are the same as BGP-4
B. When the PE and CE exchange routes through BGP, you need to create a BGP process for each VPN instance on the CE
C. MP-BGP needs to assign private network labels to VPNv4 routes
D. MP-BGP advertises VPNv4 routes through two attributes: MP_REACH_NLRI and MP_UNREACH_NLRI
正解：B

質問 4：
Two EBGP neighbors connected by two parallel cables. What method will you use to achieve bidirectional load sharing between two EBGP neighbors connected through these two parallel serial cables?
A. Use the command at both ends "ebgp-load-balance
B. Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS needs to import two equal-cost paths to the EBGP neighbor loopback address. You need to use the commands ebgp-max-hop and next- Hop-local
C. Without any method, BGP automatically implements load sharing between different autonomous systems on the available links.
D. Configure the loopback interface to establish an EBGP neighbor relationship and configure EBGP Multi-hop. Configure the loopback interface as the update source, and then use IGP to implement equal-cost path load sharing between addresses.
E. Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS must have two equal-cost paths to the EBGP neighbor loopback address. You need to use the command "next-hop-local".
正解：D

質問 5：
In SSM, which version of IGMP needs to be used?
A. IGMPV2
B. IGMPV4
C. IGMPV1
D. IGMPV3
正解：D

質問 6：
Which of the following description of BGP neighbors are wrong? (Multiple questions)
A. MD5 authentication must be configured for BGP to establish neighbors
B. BGP router supports automatic neighbor discovery
C. BGP needs to exchange link state information to establish neighbor relationships
D. BGP needs to establish a UDP connection before establishing neighbors
正解：A,B,C,D

質問 7：
You want to set the DSCP value of VoIP traffic in HW network equipment to EF.
According to the differentiated services model RFC, the flow mark EF should be set as _____.
A. IPTos is set to 0xEF
B. DSCP is set to decimal 5
C. DSCP is set to decimal 36
D. IP Experimental ECN
E. Bitstream 101110
正解：E

質問 8：
The filter policy 2000 export is configured in the IS-IS process. Which of the following is wrong about the function of this command?
A. The routing entries generated by the device itself will be restricted from being released to the outside world
B. This command will filter the link state information released to the outside world
C. It needs to be used in conjunction with route import, which is used to advertise only part of the imported external routes to neighbors.
D. If this command is not configured, the device will advertise all the routes imported by external routing protocols into IS-IS by default.
正解：A