H12-224 Exam Dumps - HCNP-Routing&Switching (Fast Track) (Huawei Certified Network Professional -Routing&Switching)

OSPF routers must establish an adjacency before exchanging information.

Not all neighbors can establish adjacencies.

Adjacencies are maintained using OSPF Hello Protocol

Neighbor relationships are selected from adjacencies to exchange routing information

Work out the technical design

Know the project background

Determine the model of network devices in the project

Make clear the requirements of network devices in the project E, Plan IP address

Account soft-out reminder

Password updated reminder

Log protection reminder

Data backup reminder

Security zone

Trusted zone

Untrusted zone

DMZ

Border security optimization aims to prevent or reduce external network attacks and harm

The optimization position is usually located at the network edge

Optimization measures include attack defense technologies packet filtering and hardware firewalls

Border security optimization aims to achieve secure user access control

TRUE

FALSE

Provide a database backup tool

Support multi-user management

Support management of the VLAN and MPLS VPN

Support hierarchical management model

The Virtual Router Redundancy Protocol (VRRP)is designed for networks with multicast and broadcast capabilities, such another router if it fails so that uninterrupted and reliable communication is guaranteed

When VRRP is used the virtual router ID. and virtual IP address need to be configured on the router, the MAC address of

Hosts on the network communicate with the virtual router. There is no need to learn all information of physical routers on1

A virtual router consists of one master router and several backup routers. he master router provides forwarding function takes over its work

Port isolation controls access between interfaces of switches

Port isolation prevents the computers connects to differ faces from accessing each other

Port isolation can be configured based on VLANs

Port isolation is an isolation mechanism at the physical layer

Packets received by a port

Packets sent by a port

Packets received and sent by a port

Packets discarded on a port

TRUE

FALSE

An ACL is configured to prohibit all TCP connections between two BGP neighbor

Two IBGP peers are not physically directly connected

BGP synchronization is enabled on fully-meshed IBGP peers

Two BGP peers are configured with different routing Update intervals

Route-refresh

Open

Keepalive

Update

To ensure that sensitive management information will not be intercepted

To prevent or reduce external network attacks and harm

To ensure secure access to key services

To achieve secure user access control

TRUE

FALSE

True

False

The default security level of the new zone is 1.

Only the security level of the user-defined zone can be configured.

The configured security level cannot be changed.

Two zones cannot be configured with the same security level.

TRUE

FALSE

Accuracy

Good portability

Verification

Rollback

TRUE

FALSE

When a router receives data packets packet loos may occur because the CPU is busy

and cannot process data packets

When data packets are scheduled to queues packet loss may occur because the

queue is full

When data packets are transmitted on a link, packet loss may occur because of link faults

Packet loss is generally caused by the delay the tail drop packets loss may occur because of the queue is full

TRUE

FALSE

Time plan

Personnel arrangement

Migration process

Risk control measures

Each group VLAN must be bound to a principal VLAN

lf the VLAN ID has been used by the principal VLAN this VLAN cannot be used for the

VLANIF interface super-VLAN or sub-VLAN

After MUX VLAN is enabled on an interface VLAN mapping and VLAN stacking can be configured on the interface

An enterprise can use the principal port to connect to the enterprise servers separate port to connect to enterprise customers and groups to employees can both access enterprise servers enterprise employees can communicate with each other enterprise customers cannot communicate with each other

Init state

Attempt state

2-waystste

Exchange state

TRUE

FALSE

Account registration

Account approval and distribution

Account authentication

Account audit and deregistration

Application layer

Physical layer

Network layer

Link Layer

The DHCP offer packets are broadcast by the DHCP client to detect available servers

The DHCP server sends DHCP Offer packets to respond to the DHCP Discover packets send by the DHCP by the DHCP client, providing

The DHCP client sends a DHCP Offer packet to the DHCP server to request configuration parameters, configuration acknowledge

The DHCP server sends a DHCP Offer packet to the client to the client carrying configuration parameters, such as the IP address

Configure the trusted or untrusted interface.

Limit maximum number of MAC addresses that can be learned on a switch interface.

Configure DHCP snooping to check the CHADDP field carried in a DHCP Request packet.

Configure association between DHCP snooping and IPSG or DAI on the switch.

Configuration comparison

Top-down

Bottom-up Replacement

TRUE

FALSE

P2MP

NBMA

SNAP

LAN(broadcast network)

TRUE

FALSE

An ABR has multiple LSDBs and maintains one LSDB for each area

An ABR abstracts link state information within its connected non-backbone area as routing information and

An ABR needs to abstract link state information within the backbone area as routing information and advert

An ABR can generate Type 3 LSAs Type4 LSAs and Type 5 LSAs

Access control by user name

According to whether the wireless terminal MAC address registration control access

Access control by SSID (different SSIDs for internal employees and guests)

Access control by wireless terminal type

TRUE

FALSE

The destination IP address of the LDP Discovery message is the multicast IP address

224.0.0.2

The LDP Discovery message is sent to the specified LDP peer

The LSR does not does not send Hello messages any longer after TCP connections

are established

The LDP Discovery message is encapsulated into a UDP packet and its destination port number is 646

TRUE

FALSE

Virtual link can solve the problem that backbone areas are logically non-contiguous.

A virtual link can be established between any two ABRs, but the two routers must have interface that are connected to the same non backbone area. routers must have interfaces that are connected to the same

A virtual link unnecessarily belongs to the backbone area, Instead, which area It belongs to depends on the actual topology.

A virtual link belongs to Area 0.

TRUE

FALSE

AS-external-LSAs can be advertised within a stub area

AS external route can only be based on a default route that is manually configured on an

ABR.

A virtual link cannot pass through a stub area

Any area can be a stub area

RSTP defines the edge port role. The edge port does not receive and process configuration BPDUs, and not participate in RSTP calculation

When the root port fails, the optimal alternate port will become the root port and the forwarding state.

In RSTP, when a port is elected as the designated port, it enters the discarding state.

Then the port immediately enters the forwarding state

In RSTP, when a port receives is bpdus form the upstream designated bridge , the port will compare the own stored is bpdu with the E. When the designated port fails, the optimal alternate port will become the root port and enter the forwarding state.

Firewall

VoIP

NAT

VPN

BGP uses TCP as the transport protocol.

BGP uses the same algorithm as RIP, namely, distant

BGP uses the TCP port 179.

BGP Is an interdomain rout

The high 24 bits of the multicast MAC address are 0x01005f the is fixed to 1and the

lower 23 bits of the MAC

One multicast MAC address maps to 32 multicast IP addresses

A multicast MAC address identifies receivers of a multicast group on the data link layer

One multicast MAC address maps to only one multicast IP address

A BFD, session can be set up. After the negotiation, the detection interval of 90ms is used.

A BFD, session can be set up. After the negotiation, the detection interval of 30ms is used.

A BFD, session can be set up. And packets are sent at respective interval at both ends.

A BFD, session cannot be established.

lt suppresses the delivery of generated summarized routes to the IP routing table

lt suppresses the delivery of specific routes to the IP routing table

lt only advertises the summarized routes to other BGP peers

lt advertises both the summarized routes and specific routes to other BGP peers

The operator between nodes Is OR,

The operator between nodes is AND.

The operator between if-match clauses under a node is AND

The operator between if-match clauses under a node is OR

TRUE

FALSE

IGMP snooping prevents multicast packets from being broadcast at Layer 3.

IGMP snooping is a multicast restraint mechanism that runs on layer 2 Ethernet switches to manage and control multicast groups.

IGMP snooping creates a multicast MAC address table by listening to IGMP packets sent from hosts.

IGMP snooping does not consume CPU resources of switch.

TRUE

FALSE

1000-3999

2000-2999

3000-3999 0-1000

TRUE

FALSE

TRUE m ill

FALSE