Which of the following statements regarding the IPv6 over VXLAN network is false?

Tunnels between Layer 2 and Layer 3 VXLAN gateways are deployed on an IPv4 network.

The IPv6 over VXLAN network indicates that the VXLAN overlay network is an IPv6 network.

The IPv6 Over VXLAN network does not generate ND entries.

Tunnels between Layer 2 and Layer 3 VXLAN gateways are deployed on an IPv4 network.

The IPv6 over VXLAN network enables tenants to have sufficient IP address resources.

Which of the following statements regarding the BFD one-arm-Echo function are true? (Choose two.)

This function is applicable when one device supports BFD and the other device does not.

The default destination IP address of a BFD packet is 224.0.0.184.

Local and remote discriminators must be configured for this function.

After this function is enabled, the destination and source IP addresses of BFD packets are the same.

This function is applicable when one device supports BFD and the other device does not.

The default destination IP address of a BFD packet is 224.0.0.184.

Router HW1 functions as an MPLS LSR router on the carrier's network. The router receives a labelled packet, but the label entry does not exist in the router'sLFIB. Given this information, how will the router process the packet?

Router HW1 discards the packet.

Router HW1 uses the default label to forward the packet.

Router HW1 removes the label, searches the FIB, and uses the destination IP address to forward the packet.

Router HW1 uses LDP to create an LSP and creates a path in its LFIB for the label carried in the packet.

Which of the following statements regarding the basic MPLS forwarding process is false?

When an IP packet enters an MPLS domain, the device checks whether the tunnel ID corresponding to the destination IP address of the packet is 0x0. If so, the MPLS forwarding process starts.

By default, the egress node supporting PHP allocates the label with the value of 3 to the penultimate hop.

A transit node replaces a label on the top of the label stack in an MPLS packet with the label assigned by the next hop.

When an IP packet enters an MPL5 domain, the MPLS edge device inserts a new label between the Layer 2 header and the IP header of the packet.

In which of the following scenarios will gratuitous ARP packets be sent?

The master and backup devices are elected in VRRP.

A host connected to the switch sends a ping packet.

The DHCP client receives an acknowledgment message from the server

A new host with an IP address is connected to the network.

The master and backup devices are elected in VRRP.

What is the function of Route Target (RT) on an MPLS VPN?

Allows the remote PE to determine which VPNv4 routes be imported to a specific VPN routing and forwarding (VRF) instance.

Allows the remote PE to determine which VPNv4 routes should not be imported to a specific VRF instance.

Allows the remote CE to determine which VPNv4 routes be imported to a specific VRF instance.

Allows the remote PE to determine which VPNv4 routes be imported to a specific VPN routing and forwarding (VRF) instance.

Allows the remote CE to determine which VPNv4 routes should not be imported to a specific VRF instance.

On the network shown in the figure below, SW1, SW2 and SW3 are deployed. SW1 is the root bridge, link congestion occurs between SW1 and SW2, and SW2 cannot receive configuration BPDUs sent by the root bridge. Given this information, which of the following spanning tree protection mechanisms needs to be configured to prevent problems caused by link congestion?

Defense against TC BPDU attacks

Which of the following statements regarding OSPF route filtering is false?

All LSAs, except Grace LSAs, can be filtered based on interfaces in the inbound and outbound directions.

The filtering of Type 3 LSAs needs to be configured on ABRs in OSPF.

In a NSSA, when external routes are imported to the OSPF router and LSAs are advertised to its neighbors, LSA filtering can be performed on the ASBR orABR.

All LSAs, except Grace LSAs, can be filtered based on interfaces in the inbound and outbound directions.

When routes are calculated based on the LSDB, the filter-policy import command can be executed to filter routes. This filtering mode affects only the addition of routes in the routing table, and has no impact on the OSPF LSDB.

Which messages are sent to the agent by the network management station (NMS) running SNMPv1?

Get, Set, and GetNext, and GetBulk messages

What are the differences between traffic policing and traffic shaping?

For traffic shaping, the router buffers excess packets until the bandwidth is available again.

For traffic shaping, you can adjust the usage of the buffer for the traffic that exceeds the CIR.

For traffic policing, you can adjust the usage of the buffer for the traffic that exceeds the CIR.

For traffic shaping, the router buffers excess packets until the bandwidth is available again.

Traffic policing uses the token bucket algorithm and traffic shaping uses the SPD algorithm.

Traffic shaping is applied in the inbound direction and traffic policing is applied in the outbound direction.

Which of the following statements regarding URPF, IPSG, and DAI are false?

URPF can be used to defend against DDoS attacks from forged sources.

IPSG checks the source IP addresses and source MAC addresses of IP packets, and DAI checks only the mapping between IP addresses and MAC addresses.

DAI binding entries cannot be manually configured.

URPF can be used to defend against DDoS attacks from forged sources.

IPSG checks IP packets to defend against attacks using spoofed source IP addresses, and DAI checks ARP packets to filter out attack sources.

By default, WRED is configured on a newly deployed Huawei router. Which of following statements regarding WRED are true?

WRED can be used to set different drop thresholds and packet loss rations for data packets with different priorities.

When traffic exceeds the minimum threshold, WRED starts to discard all inbound traffic (tail drop).

Traffic with low bandwidth is more likely to be discarded than traffic with high bandwidth.

WRED selectively discards multiple TCP flows to avoid global synchronization.

WRED can be used to set different drop thresholds and packet loss rations for data packets with different priorities.

Which of the following statements regarding RADIUS are true?

RADIUS supports user access in wired and wireless modes.

Authentication, authorization, and accounting are separated in RADIUS protocol.

RADIUS authentication, and Portal authentication cannot be used together because users can be authenticated using the Portal server when Portal authentication is enabled.

MAC address authentication does not require a user name and password. Therefore, users cannot be authenticated through RADIUS when using MAC address authentication.

RADIUS supports user access in wired and wireless modes.

Router HW1 and Router HW2 are connected to Network A and Network B respectively. Referring to the figure, if you want to set up an IPsec VPN tunnel between HW1 and HW2, which of the following ACL rules needs to be configured on HW1 to transmit the traffic across networks A and B pass through the encrypted VPN tunnel?

rule permit ip source 10.1.1.0.0.0.0.255 destination 10.1.2.0.0.0.0.255

rule permit ip source 10.1.2.0.0.0.0.255 destination 10.1.1.0.0.0.0.255

rule permit ip source 10.1.1.0.0.0.0.255 destination 10.1.2.0.0.0.0.255

rule permit ip source 10.1.1.0.0.0.0.255 destination 192.168.1.2.0

rule permit ip source 192.168.1.1.0 destination 10.1.2.0.0.0.0.255

rule permit ip source 192.168.1.1.0 destination 192.168.1.2.0

A DR needs to be elected from a set of candidate PIM-SM routers for multicast data forwarding on the source side or the receiver side. Which of the following statements regarding DR election is true?

DR priorities of the PIM-SM routers are compared first. If their DR priorities are the same, their interface IP addresses are then compared.

The PIM-SM router with the lowest DR priority is elected as the DR.

The PIM-SM router with the smallest IP address is elected as the DR.

The PIM-SM router with the longest interface mask is elected as the DR.

DR priorities of the PIM-SM routers are compared first. If their DR priorities are the same, their interface IP addresses are then compared.

If PIM-SM is enabled on a multicast network, an RP needs to be configured. The RP can be configured as a dynamic or static RP. Which of the following statements regarding RP configuration is true?

RP information needs to be specified on all PIM routers when a static RP is configured.

No BSR needs to be configured when a dynamic RP is configured.

When a static RP is configured, you need to configure a BSR that advertises RP information.

The BSR needs to be configured as the RP backup when a dynamic RP is configured.

RP information needs to be specified on all PIM routers when a static RP is configured.

If host HW1 on the network wants to join a video conference, what will the host do?

The host multicasts an IGMPv2 Membership Report message that carries the expected multicast address to the local network.

The host multicasts an IGMPv2 Membership Report message with the multicast address for all PIM routers (224.0.0.2) to the local network.

The host unicasts an IGMPv2 Membership Report message to the default router on the local network.

The host unicasts an IGMPv2 Membership Report message to the RP.

Which of the following statements correctly describes the corresponding MPLS TTL processing mode?

The TTL field in an MPLS label serves the same function as that in an IP packet header. That is, the TTL is used to prevent loops on an MPLS network.

On an MPLS VPN, if the structure of the MPLS backbone network needs to be shielded, the Uniform mode is recommended for VPN packets.

In Uniform mode, when IP packets enter an MPLS network, the ingress node decrements the IP TTL by one and the MPLS TTL field has a fixed value.

The TTL field in an MPLS label serves the same function as that in an IP packet header. That is, the TTL is used to prevent loops on an MPLS network.

In Pipe mode, when IP packets enter an MPLS network, the ingress node decrements the IP TTL by one and copies this new value to the MPLS TTL field.

Which of the following statements regarding CE dual-homing features is false?

A CE connects to the backbone network through two links that work in load balancing or primary/secondary mode.

The VRFs of two PEs connected to the same CE can belong to different VPNs.

In the CE dual-homing networking, loops may occur. You can use route-tag resolve this issue.

A CE dual-homing network where a CE is connected to two PEs ensure high network reliability.

A CE connects to the backbone network through two links that work in load balancing or primary/secondary mode.

Two community filters are configured as follows:ip community-filter 1 permit 100:1 200:1 ip community-filter 2 permit 100:1 ip community-filter 2 permit 200:1Which of the following statements regarding the community filters are true? (Choose two.)

A BGP route matches community-filter 1 only when it carries the Community attribute values of 100:1 and 200:1.

A BGP route matches community-filter 2 only when it carries the Community attribute values of 100:1 and 200:1, or both.

A BGP route matches community-filter 2 only when it carries the Community attribute values of 100:1 and 200:1.

A BGP route matches community-filter 1 only when it carries the Community attribute value of 100:1 or 200:1, or both.

A BGP route matches community-filter 1 only when it carries the Community attribute values of 100:1 and 200:1.

A BGP route matches community-filter 2 only when it carries the Community attribute values of 100:1 and 200:1, or both.

Which of the following statements regarding RD filters are true? (Choose two.)

The relationship between the rules of an RD filter is "OR."

Routes are filtered according to the configuration order of multiple rules.

The relationship between the rules of an RD filter is "OR."

If an RD filter is configured but the RD of routes does not match any RD defined in the RD filter, the default matching result is "permit."

Routes are filtered according to the configuration order of multiple rules.

If an RD filter is not configured but used to filter routes, the matching result is "deny".

Which of the following statements is true regarding the domain authentication mode md5 hello command in the IS-IS process?

IS-IS SNP and LSP can be flooded normally only when the domain authentication mode and password of all routers in the same routing domain are MD5 and hello.

This command enables IS-IS Hello PDUs to carry authentication information.

IS-IS SNP and LSP can be flooded normally only when the domain authentication mode and password of all routers in the same routing domain are MD5 and hello.

IS-IS authentication cannot be applied to IPv6 environments.

Routing domain authentication enables Level-1 and Level-2 SNPs and LSPs to carry authentication information.

Which of the following statements regarding OSPFv3 are true?

The Option field of Hello and DD packets is extended to 24 bits.

The LSAck packet contains the LSA header information, which is used for acknowledging the receipt of an LSA.

The Hello packet must contain interface ID of sending interface.

The Option field of Hello and DD packets is extended to 24 bits.

The LSR packet contains the complete LSA header information, which is used for request updating LSAs.

Which of the following statements regarding BGP route reflectors (RRs) are true?

Cluster_List is an optional non-transitive attribute and is used to prevent loops in a cluster.

An RR advertises routes learned from a client to all connected non-clients and clients.

A backbone network is divided into multiple reflection clusters. Each RR is configured as a non-client of the other RR, and establishes full-mesh IBGP connections with each other.

Cluster_List is an optional non-transitive attribute and is used to prevent loops in a cluster.

The Originator_ID attributes is generated by an RR to prevent loops between clusters.

When router R1 runs OSPF and they display ip routing-table command is executed on R1 to check the routing table, which of the following statements regardingOSPF information in the routing table is true?

In the routing table, the routing entries marked OSPF can be learned only through Type 1 LSAs.

In the routing table, the routing entries identified by the O_ASE identifier can be learned only through route import.

In the routing table, the routing entries identified by the OSPF identifier can be learned through Type 1/2/3/5 LSAs.

In the routing table, the routing entries marked OSPF can be learned only through Type 1 LSAs.

In the routing table, the routing entries identified by the OSPF identifier can be learned only through Type 3 LSAs.

IS-IS elects a DIS on a broadcast network. Which of the following statements regarding DIS are true? (Choose three.)

IS-IS elects the DIS by comparing preferences. If the preferences are the same, IS-IS compares MAC addresses.

On a broadcast network, the DIS sends Hello PDUs at a frequency that is three times the frequency of non-DIS routers.

The DIS periodically sends CSNPs to ensure LSDB synchronization.

DIS preemption is supported. After successful DIS preemption, LSPs do not need to be flooded.

IS-IS elects the DIS by comparing preferences. If the preferences are the same, IS-IS compares MAC addresses.

On a broadcast network, the DIS sends Hello PDUs at a frequency that is three times the frequency of non-DIS routers.

The DIS periodically sends CSNPs to ensure LSDB synchronization.

In which scenarios can an AS-Path-filter be used? (Choose three.)

Filtering routes received from BGP peers based on the AS_Path attribute. For example, the peer X.X.X.X as-path-filter import command.

if-match clause in a route-policy

Filtering routes sent to BGP peers based on the AS_Path attribute. For example, the peer X.X.X.X as-path-filter export command.

Filtering routes received from BGP peers based on the AS_Path attribute. For example, the peer X.X.X.X as-path-filter import command.

if-match clause in a route-policy

Filtering routes sent to BGP peers based on the AS_Path attribute. For example, the peer X.X.X.X as-path-filter export command.

Routers R1 and R2 run BGP. Both the routers reside in AS 65234. Routes of R2 exist in the BGP routing of R1 but do not exist in the IP routing table of R1.What is the cause of this problem?

The BGP peer relationship between R1 and R2 is in Down state.

BGP is disabled on both R1 and R2.

Multi-hop BGP is disabled on R1.

The BGP peer relationship between R1 and R2 is in Down state.

In the figure, the first record shows an LSP in the LSDB of a router, and the second record shows a newly received LSP. Which of the following statements is false?

The router will ignore the LSPs received from neighbors.

The router adds the newly received LSP to the LSDB.

The router will ignore the LSPs received from neighbors.

The router sends PSNPs if it is a point-to-point network.

If it is a broadcast network, the DIS adds the summary information of the newly received LSP to the next CSNP.

Which of the following statements about BGP load balancing are false? (Choose three.)

The AS_Path attribute values of equal-cost routes for load balancing must be different.

Load balancing can be implemented among BGP routes with different origins but having the same destination network segment.

Load balancing can be implemented among IBGP routes and EBGP routes having the same destination on the public network.

The AS_Path attribute values of equal-cost routes for load balancing must be different.

When BGP load balancing is implemented, the local device can change the next-hop address of routes to its own address when advertising the routes toIBGP peer groups only if the peer next hop-local command is configured.

Load balancing can be implemented among BGP routes with different origins but having the same destination network segment.

Load balancing can be implemented among IBGP routes and EBGP routes having the same destination on the public network.

Which of the following statements route import is false?

By default, the metric of external routes imported into the OSPF process is 1 and the type of imported external routes is Type 2.

Importing IBGP routes into the OSPF process may cause routing loops.

By default, the metric of external routes imported into the OSPF process is 1 and the type of imported external routes is Type 2.

BGP can generate routes in either Import or Network mode. The Network mode is more precise than the Import mode.

After IS-IS Level-2 routes are imported to an IS-IS Level-1 area, routing loops occur if no route import policy is manually configured.

Huawei H12-261 Practice Test 4 - Free Online Exam Questions 121-160

A VXLAN tunnel can be established between two VTEPs and shared by all VXLAN Network Identifiers (VNIs) between two NVE nodes.

Become a Premium Member for full access

Unlock Premium Member

Huawei H12-261 Practice Test 4

Question

Huawei H12-261 Practice Tests

Practice Tests