Free HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Exam H12-831_V1.0 Exam Practice Test

When there are multiple redundant links in the IS-S network, multiple equal-cost routes may appear. Which of the following statements is false about equal-cost routing within an IS-IS network?

• When the number of equal-cost routes in the network is greater than the number configured by the command, and these routes have the same priority, Preferred next hop deviceSystem IDLarge routes for load balancing
• If load sharing is configured, the traffic will be evenly distributed to each link
• After configuring equal-cost route priorityJS-ISWhen the device forwards the traffic reaching the destination network segment, it will not adopt the load balancing method, but forward the traffic to the next hop with the highest priority
• For each route in the equal-cost route, a priority can be specified, and the route with higher priority will be preferred. the rest as backup routes

By default, which of the following types of secure MA, C addresses will be lost when the device restarts?

• black holeMA, Caddress
• Sticky MA, Caddress
• Security DynamicsMA, C 1W
• Safe staticMA, Caddress

Link LSAs of OSPFv3 are propagated throughout the area.

• right
• wrong

Which of the following are documents that need to be handed over as part of the wrap-up of a structured network troubleshooting processfiles?

• Maintenance suggestions to avoid this fault
• Troubleshooting Summary Report
• Troubleshooting Procedure Documentation
• slightly

To ensure security, authentication can be configured in the OSPFV3 process area view.

• True
• False

Which statement about DHCP Snooping is wrong?

• DHCP SnoopingYou can prevent illegal attacks by setting trusted ports (all interfaces are untrusted by default. mouth)
• Global enableDHCP Snoopingfunction, without any post-parameters, the device only processes by default DHCPv4message
• Enable in interface viewDHCP Snoopingfunction, then all theDHCPThe message command function takes effect
• existVLANEnable in viewDHCP Snoopingfunction, then all interfaces of the device receive data belonging to thisVLANofDHCPThe message command function takes effect

Which of the following regular expressions can match only BGP routes that pass through AS200 and then through AS300eyes?

• 200$|300$
• A200|A300
• _(200 300)_
• _[200 300]

Which of the following statements is false when troubleshooting the dual-active failure of a VRRP backup group?

• No need to check deliveryVRRPWhether the switch port of the advertisement message is in the sameVLAN
• need to check the interfaceVRRPGroupIDIs it the same
• Interface needs to be checkedIPWhether the address is in the same network segment
• need to checkVRRPgroup of virtualIPIs the address the same

The Discovery message of LDP is used for neighbor discovery, and LDP has different discovery mechanisms when discovering neighbors. The following statement about the Discovery message in the basic discovery mechanism is correct

• TCPAfter the connection is establisheD. LSRdo not continue sendingHello Message
• Purpose of the messageIPaddress is multicastIPaddress224.0.0.2
• This message is encapsulated inUDPIn the message, the destination port number is646
• The message is sent to the specifiedLDP Peer

In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded.label, the description of the two-layer label in the following options is wrong

• MPLS VPNThe outer label is made byLDPprotocol or statically assigned, the inner label is assigned by the correct end MP-BGPassigned by neighbors
• MPLS VPNEThe outer layer label is called the private network label, and the inner layer label is called the public network label
• By default, the outer label is singled out before the packet is forwarded to the last hop device
• Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle