Inter-device link aggregation implements reliable transmission of data traffic and mutual backup for stack member switches. However, the bandwidth of stack cables between stacked devices is limited. Which of the following methods can be used to improve forwarding efficiency?

Enable the function of preferentially forwarding local traffic

Configure the system MAC address switchover for the stack

Use a stack card to connect the devices to be stacked

Enable the function of preferentially forwarding local traffic

Enable multi-active detection (MAD) for the stack

Why does RSTP achieve faster convergence than STP?

RSTP convergence is not based on the timer mechanism

RSTP has additional port states

Which of the following statements regarding the processing of BPDUs in 802.1w and 802.1D is true?

In 802.1w, the bridge only forwards the BPDUs received from the root bridge

In 802.1D, the bridge only forwards the BPDUs received from the root bridge

In 802.1w, the bridge only forwards the BPDUs received from the root bridge

In 802.1D, the bridge does not forward BPDUs

In 802.1w, the bridge does not forward BPDUs

Two routers are connected through serial interfaces, but they cannot ping each other. The following information is displayed when you check the status of the connected interfaces: Given this information, why are the two routers unable to ping each other?

The link layer protocols of the two interfaces are inconsistent

The subnet masks of the two interfaces do not match

The IP addresses of the two interfaces are not on the same network segment

The link layer protocols of the two interfaces are inconsistent

The link bandwidth is insufficient

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

On the same node of a routing policy, the relationship among multiple if-match clauses for different attributes is "OR."

The relationship between the nodes of a route-policy is "OR." That is, a route matches the routing policy as long as it is allowed by one node.

On the same node of a routing policy, the relationship among multiple if-match clauses for different attributes is "OR."

After a route from a BGP peer is received and a routing policy is executed to filter out unnecessary BGP routes, these routes will not be added to the localBGP routing table.

When a routing policy is configured for locally advertised routes, this policy takes effect before the routes are added to the BGP routing table.

Which of the following statements regarding route-policies are true?

If more than one node is defined in a route-policy, the matching mode of at least one node must be permit

An advanced ACL can be used in a route-policy to filter routes

A route-policy can filter only default routes

If the entry permit :: 0 less-equal 128 is defined, all IPv6 routes are permitted

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

If no RR is available, IBGP peers must be fully meshed. If an RR is available, IBGP peers do not need to be fully meshed

An RR can advertise routes learned from a client to the other clients and non-clients

An RR can advertise routes learned from IBGP peers to all clients and non-clients

An RR can advertise routes learned from non-clients to all clients

Which of the following statements regarding control are true?

An AS-Path-filter filters routes based on the AS-Path attribute to affect route selection

For node 10, the relationship between if-match community-filter 1 and if-match as-path-filter 1 is "AND."

Default OSPF, IS-IS, and BGP routes can be advertised.

An AS-Path-filter filters routes based on the AS-Path attribute to affect route selection

The import-route BGP command can be used to import IBGP routes

Both IS-IS and OSPF run on a network as shown in the following figure. Route import is configured on RTB and RTC respectively. All the routers are connected through GE interfaces. Routes to the network segment 2.2.2.2/32 is imported to the OSPF process using the import-route direct command on RTD. The default settings are retained for all the other configurations. Which of the following statements regarding this network is false?

The following configuration can be performed on RTC to filter out routes from RTD to the network segment 2.2.2.2/32 when RTC imports OSPF routes:[RTC-acl-basic-2001]rule 5 deny source 2.0.0.0 0.255.255.255[RTC-acl-basic-2001]rule 10 permit[RTC-isis-1]filter-policy 2001 import

The following configuration can be performed on RTC to filter out only routes to the network segment 2.2.2.2/32 when RTC imports routes:[RTC] ip ip-prefix 10 index 1 deny 2.0.0.0 8 less-equal 32[RTC-isis-1]filter-policy ip-prefix 10 import

On RTB, adjust the IS-IS preference to 160 to avoid generation of sub-optimal routes on the network

The following configuration can be performed on RTC to filter out routes from RTD to the network segment 2.2.2.2/32 when RTC imports OSPF routes:[RTC-acl-basic-2001]rule 5 deny source 2.0.0.0 0.255.255.255[RTC-acl-basic-2001]rule 10 permit[RTC-isis-1]filter-policy 2001 import

RTB learns that RTA is the next hop of the route to the network segment 2.2.2.2/32

The configurations of two routers in a company are shown. Which of the following statements regarding the routing table of R1 is true?

If the IS-IS preference of R1 is changed to 5, the IP routing entries whose destination network segment is 10.0.2.2/32 on R1 are generated through IS-IS

The IP routing entries whose destination network segment is 10.0.2.2/32 on R1 can be generated through OSPF only when the IS-IS preference of R2 is changed to 5

If the IS-IS preference of R1 is changed of R1 is changed to 5, the IP routing entries whose destination network segment is 10.0.2.2/32 on R1 are generated through OSPF

If the IS-IS preference of R1 is changed to 5, the IP routing entries whose destination network segment is 10.0.2.2/32 on R1 are generated through IS-IS

If the IS-IS preference of R2 is changed to 5, the IP routing entries whose destination network segment is 10.0.2.2/32 on R1 are generated through IS-IS

Based on the scenario shown, which statement about R2 is true?

R2 can receive LSPs from R1, but cannot add the routing information in the LSPs to the routing table

R2 can learn all routes advertised by R1

R2 can learn only the route 10.1.1.0/24

R2 can learn the routes 10.1.2.0/24 and 10.1.3.0/24

Policy-Based Routing (PBR) needs to be configured on a router to enable specified traffic to be forwarded through a specified interface. When PBR is used, which two types of information can be specified to enable traffic forwarding along a specific path?

Source IP address and specific protocol (such as FTP and HTTP)

Type of Service and bandwidth usage

Source IP address and specific protocol (such as FTP and HTTP)

TTL and source IP address of packets

Source IP address and Layer 2 source address

A router is connected to two EBGP peers through two parallel serial cables. What method can be used to achieve bidirectional load balancing between theEBGP peers?

Establish an EBGP peer relationship through loopback interfaces, and configure the loopback interfaces as update sources. In each AS, import two equal-cost routes to the loopback interface of each EBGP peer to the IGP process. Inaddition, run the ebgp-max-hop and next-hop-local commands.

Run the ebgp-load-balance command on the EBGP peers.

No method is needed. BGP automatically implements load balancing among different Ass through available links.

Establish an EBGP peer relationship through loopback interfaces, and configure the loopback interfaces as update sources. In each AS, import two equal-cost routes to the loopback interface of each EBGP peer to the IGP process. Inaddition, run the ebgp-max-hop and next-hop-local commands.

Configure an EBGP peer relationship through loopback interfaces, and configure the loopback interfaces as update sources. In each AS, enable two equal-cost routes to the loopback interface on each EBGP peer in the IGP process. Inaddition, run the next-hop-local command.

Which of the following statements regarding the Multi-VPN-instance CE (MCE) is false?

The MCE has been bound to a VPN. Therefore, no VPN needs to be bound to the PE connected to the MCE

An MCE device creates a routing table for each VPN and binds each VPN instance to it's interfaces

The MCE has been bound to a VPN. Therefore, no VPN needs to be bound to the PE connected to the MCE

Based on the interface for receiving routing information, the MCE determines the origin of the routing information and adds the routing information to the routing table of the corresponding VPN

The MCE can connect to multiple VPNs. The MCE solution isolates services of different VPNs while reducing the cost of network devices

In the Hub-Spoke networking of MPLS BGP VPN shown in the figure below, users want to configure branches to communicate only with the headquarters but no other branches. To achieve this, which of the following solutions regarding RT settings can be used?

Headquarters: Import Target: 12:3; Export Target: 3:12Branch 1: Import Target: 3:12; Export Target: 12:3Branch 2: Import Target: 3:12; Export Target: 12:3

Headquarters: Import Target: 2:2; Export Target: 3:3Branch 1: Import Target: 3:3; Export Target: 1:1Branch 2: Import Target: 3:3; Export Target: 2:2

Headquarters: Import Target: 12:3; Export Target: 3:12Branch 1: Import Target: 3:12; Export Target: 12:3Branch 2: Import Target: 3:12; Export Target: 12:3

Headquarters: Import Target: 1:1; Export Target: 3:3Branch 1: Import Target: 3:3; Export Target: 1:1Branch 2: Import Target: 3:3; Export Target: 2:2

Headquarters: Import Target: 12:3; Export Target: 12:3Branch 1: Import Target: 12:3; Export Target: 12:3Branch 2: Import Target: 12:3; Export Target: 12:3

A network administrator plans to migrate IGMPv2 to IGMPv3 on the multicast network. What advantages does IGMPv3 have over IGMPv2?

IGMPv3 enables a host to join a specified multicast group that includes a specified multicast source

IGMPv3 deletes suppression of IGMPv3 Membership Report messages

IGMPv3 deletes the function of matching all sources through wildcard belong to specific multicast group

IGMPv3 enables a host to join a specified multicast group that excludes a specified multicast source

IGMPv3 adds Request-to-Send and Clear-to-Send messages between source and local IGMP queries

IGMPv3 enables a host to join a specified multicast group that includes a specified multicast source

Which of the following statements regarding Security Association (SA) in IPsec is false?

IPsec can only use symmetric encryption algorithms to encrypt and decrypt data

An IPsec VPN connection can be established only when the bidirectional SA exists between IPsec peers

An SA is identified by three parameters: security parameter index (SPI), destination IP address, and security protocol ID (AH or ESP)

You can run the display ipsec sa command to view the encryption algorithm used and traffic of interest between IPsec peers

IPsec can only use symmetric encryption algorithms to encrypt and decrypt data

As shown in the figure, two IPv6 networks need to access the IPv4 network. An IPsec tunnel needs to be established between the two IPv6 networks to enable communication. Which of the following encapsulation modes can meet the preceding requirements?

All the preceding options are incorrect

Which of the following statements regarding 802.1X authentication, RADIUS authentication, and HWTACACS authentication are true?

A user cannot be authenticated by both RADIUS authentication and HWTACACS authentication.

A user cannot be authenticated by both RADIUS authentication and 802.1X authentication.

A user cannot be authenticated by both RADIUS authentication and HWTACACS authentication.

A user can be authenticated by both RADIUS authentication and HWTACACS authentication. This is more secure than using just one authentication method.

Users can access a network through 802.1X authentication, and can be authenticated through RADIUS authentication.

A new office needs to use a router as the DHCP server. Which of the following items need to be configured when the DHCP server is configured to provide theDHCP service for the office?

Manually binding a specified IP address to a specified terminal

Timeout period of a ping packet

Excluding idle IP addresses from the DHCP server

Startup file of the DHCP server

Which of the following statements regarding VRRP is true?

VRRPv3 does not support authentication, whereas VRRPv2 supports authentication

The VRRP priority of the master IP address owner is 255. Therefore, the priority can be a value in the range from 0 to 254.

VRRPv2 only applies to an IPv4 network, and VRRPv3 applies only to an IPv6 network

Both VRRPv2 and VRRPv3 support authentication

VRRPv3 does not support authentication, whereas VRRPv2 supports authentication

The VRRP priority of the master IP address owner is 255. Therefore, the priority can be a value in the range from 0 to 254.

VRRPv2 only applies to an IPv4 network, and VRRPv3 applies only to an IPv6 network

On a switch with factory default settings, its MAC address table is empty. Host A connected to the switch sends the first unicast data frame. What operation will the switch perform after receiving the data frame?

The switch records the source MAC address of the data frame and floods the data frame out of all interfaces except the one it received the frame

The switch discards the data frame

The switch records the source MAC address of the data frame and floods the data frame out of all interfaces except the one it received the frame

The switch buffers the data frame and forwards the data frame after the destination host sends a data frame

The switch forwards the data frame out through an interface based on the destination MAC address of the data frame

Which of the following statements regarding OSPFv3 Link-LSAs is true?

The Link-LSA contains both the link-local address of the interface and all IPv6 prefixes of the same area on the router

The Link-LSA contains both the link-local address and all IPv6 prefixes of the interface

The Link-LSA contains both the link-local address of the interface and all IPv6 prefixes of the same area on the router

The Option field exists in an LSA header rather than the data area of a Link-LSA

If the PrefixOptions field of a prefix in the Link-LSA is 0x00, the prefix is not involved in the IPv6 unicast calculation

Which of the following statements regarding deploying IS-IS in an IPv6 environment is true?

On a broadcast network, the IPv4 DIS priority and IPv6 DIS priority can be set, respectively.

If the isis silent command is run on an IS-IS interface, the interface does not send but receives IS-IS packets.

On a broadcast network, if each router supports both IPv4 and IPv6, the IPv4 DIS and IPv6 DIS must be the same device.

By default, the DIS priority of Level-1 and Level-2 broadcast interfaces is 1.

Which of the following statements regarding MP-BGP is false?

MP_REACH_NLRI and MP_UNREACH_NLRI are optional transitive attributes

The MP_UNREACH_NLRI attribute of Update packets does not contain path information

MP_REACH_NLRI and MP_UNREACH_NLRI are optional transitive attributes

The complete MP_REACH_NLRI attribute structure contains the address family, next hop, and prefix information

MP-BGP can be used to allocate labels

Which of the following statements regarding OSPFv3 LSAs are true?

When the Referenced Link State Type of an Intra-Area-Prefix-LSA is 2, the Referenced Link State ID contains the interface ID of the DR

The Link State ID of an Inter-Area-Prefix-LSA contains prefix information

Router-LSAs and Network-LSAs do not contain routing information

Inter-Area-Prefix-LSAs contain link-local information

When the Referenced Link State Type of an Intra-Area-Prefix-LSA is 2, the Referenced Link State ID contains the interface ID of the DR

Huawei H12-261 Practice Test 6 - Free Online Exam Prep & Questions

When DLDP detects a unidirectional fiber link, Huawei devices perform the following operations by default: The DLDP state machine changes to the Disable state; a trap is generated; the interface is automatically blocked.

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Huawei H12-261 Practice Test 6

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