Huawei H31-124_v2.0 Real Exam Questions Test Engine Dumps Training With 60 Questions [Q14-Q37]

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Huawei H31-124_v2.0 Real Exam Questions Test Engine Dumps Training With 60 Questions

H31-124_v2.0 Actual Questions Answers PDF 100% Cover Real Exam Questions

NO.14 Compared with VPLS, what are the characteristics of EVPN?

EVPN needs to be configured to be in full connection state on all PEs on the carrier’s backbone network.
That is, PWs must be set up between any two PEs.

By using the EVPN technology, PB on the carrier’s backbone network do not need to establish full connections, which greatly reduces the network complexity and reduces the number of signaling messages.

EVPN enables a device to implement load balancing among multiple EVPN routes with the same destination MAC address but different next hops when managing MAC addresses.

The PE learns the local and remote MAC addresses and their IP addresses through ARP and MAC address advertisement routes, and caches the information locally to prevent ARP request packets from being broadcast to other PEs and reduce network resource consumption.

NO.15 Which of the following are the features of Huawei IPRAN solution?

Supports Layer 3 networking and smooth evolution to LTE, protecting customers’ investment.

One network, one set of O&M, full service bearing, lowest network construction cost and O&M cost; Visualized O&M, Reducing O&M Costs and Simple and Efficient.

Oriented to FMC and Adapted to Future Development Requirements.

Based on a unified router platform and a unified VRP platform, IP RAN is compatible with PTN products.

NO.16 Affinity attributes is link attributes in MPLS TE, it is configured under physical interface.

True

False

NO.17 Which of the following type of MPLS L2 VPN carries only one label on an MPLS network?

Martini

SVC

CCC

Kompella

NO.18 Which of the following statements disobey the basic principle of area division?

If the ISP runs OSPF protocol in the whole province network, then one city can be taken as one area.

In the network, there are some sub networks such as 110.1.1.0/24,110.1.2.0/24,110.1.3.0/24, 120.1.1.0/24,120.1.2.0/24 ,120.1.3.0/24.Then all the routers belonging to 110 network can be configured in one area.

One network maybe includes high-end, mid-end and low-end routers. Generally, all of these routers will be in same area.

Make all routers with larger routing-table into one area.

NO.19 Which of the following statements about CAR are correct?

CAR uses token bucket mechanism to measure traffic and allocate bandwidth.

CAR can be used for incoming interface and outgoing interface.

CAR and queue scheduling cannot be used at the same time because of confliction.

CAR can be used to limit the rate of the specific type of traffic.

NO.20 What are the three components of PPP?

NCP (Network Control Protocol)

PPPOE

LCP (Link Control Protocol)

The extension protocol of PPP

NO.21 Assuming that a router which only supports IP Precedence receives a packet marked with DSCP, which of the following statements is correct?

The last three bits of DSCP are set to 101.

Eight levels of AF in DSCP are mapped into eight levels of IP Precedence.

The first three bits of DSCP are mapped into three bits of IP Precedence.

All 8 bits of TOS are set to zero.

NO.22 Which of the following statement are correct regarding TTL value in VRRP packet?

The VRRP packet is only forwarded in one IP network, so the TTL value is always set to 1.

The TTL value of device from different manufactures is different; on VRP, the TTL value is 1.

By default, the VRRP packet with TTL value not equal to 255 will be dropped; On VRP, we can use some commands to disable the function of delecting TTL value.

The TTL value must be 255 In normal VRRP packet.

NO.23 Which of the following statements regarding multicast MAC address is correct?

The first six hexadecimal value of the multicast Mac address is 0x01005e.

Multicast MAC address is composed of 23 bits.

The range of multicast MAC address is assigned by IEEE.

On Ethernet, 28-bits of layer 3 multicast IP address are mapped into the 24-bits of the layer 2 multicast MAC address.

NO.24 The IGMP snooping configuration is as follows:
#
vlan batch 3
#
igmp-snooping enable
#
vlan 3
igmp-snooping enable
#
interface GigabitEthernet1/0/1
port hybrid tagged vlan 3
I2-multicast static-group group-address 225.1.1.1 to 225.1.1.3 vlan 3
#
interface GigabitEthernet3/0/1
port hybrid tagged vlan 3
igmp-snooplng static-router-port vlan 3
Which of the following statements are correct?

The device connected to GE 1/0/1 can receive multicast traffic only for the multicast groups 225.1.1.1 to
225.1.1.3. because static multicast groups are configured on GE 1/0/1.

The device connected to GE 1/0/1 can send Report messages to receive multicast data ‘or multicast groups outside the 225.1.1.1 to 225.1-1.3 range.

IGMP snooping has been enabled on the switch.

The device connected to GE 3/0/1 Is a multicast router.

NO.25 How does MPLS BGP VPN handle the problem of address overlapping of different VPN sites?

To use different routing protocols In the backbone network for afferent VPN.

To maintain separate VRF lor different VPN.

To allocate unique RT for each VPN.

To allocate different LSP for each VPN.

To allocate unique RD for each VPN.

NO.26 How does MPLS BGP VPN handle the problem of address overlapping of different VPN sites?

To use different routing protocols In the backbone network for afferent VPN.

To maintain separate VRF lor different VPN.

To allocate unique RT for each VPN.

To allocate different LSP for each VPN.

To allocate unique RD for each VPN.

NO.27 The following commands ate configured on the router running BGP:
bgp 100
peer 12.12.12.2 as-number 200
ipv4familyunicast
network 1,1.1.1 255.255.255.255
undo synchronization
peer 12.12.12.2 enable
peer 12.12.12.2 next-hop-local
The IP address of the router’s interface connected with peer 12.12.12.2 is 12.12.12.1. What’s the function of the command “peer
12.12.12.2 next-hop-local”?

Change the next hop of the routes generated locally as 12.12.12.1

This command does not work at all

Change the next hop of the routes advertised to peer 12.12.12.2 as 12.12.12.1

Change the next hop of the routes received from peer 12.12.12.2 as 12.12.12.2

NO.28 Which of the following statements is correct regarding Hellolnterval in OSPF?

The range of Hellolnterval is from 0 to 65535.

Hellolnterval can be modified by administraor.The smaller the value, the faster (he topology change discovery.

Hellolnterval is 10 seconds for NBMA and broadcast network by default.

Hellolnterval is 30 seconds for P2P and P2MP network by default.

NO.29 When configuring Diff-Serv in QoS, the edge router on Diff-Serv network classify packets according to its source address, destination address or other parameters, assigning different IP precedence for different packets, while other routers classify packets according to IP precedence.

True

False

NO.30 Which of the following statements regarding the description of LDP is incorrect?

Between two LSRs that run LDP, the LDP session is established and Label/FEC mapping information is exchanged.

In MPLS, LDP is used to implement label distribution, label control and label retention.

The two routers between which LDP session is established are called LDP Peer.

The UDP and TCP port number for LDP is 64.

NO.31 VXLAN uses MAC in UDP encapsulation to extend Layer 2 networks and encapsulates Ethernet packets on IP packets. When packets are transmitted on a routed network, the intermediate touting device does not need to learn inner MAC addresses.

True

False

NO.32 Interface-based ACLs define rules based on inbound interfaces of packets to filter packets. Run the
“traffic-filter command to invoke the ACL.

True

False

NO.33 Which of the following statements about CAR are correct?

CAR uses token bucket mechanism to measure traffic and allocate bandwidth.

CAR can be used for incoming interface and outgoing interface.

CAR and queue scheduling cannot be used at the same time because of confliction.

CAR can be used to limit the rate of the specific type of traffic.

NO.34 Which of the following statements about layer 2 LAN switch are incorrect?

LAN switch will modify the data link layer header of the packet and then forward it.

LAN switch can learn Mac address automatically.

LAN switch operates at data link layer.

LAN switch will modify the network layer header of the packet and then forward it.

NO.35 After the SR LSP or SR-TE tunnel is established, which of the following methods can be used to import service traffic to the SR LSP or SR-TE tunnel?

Static routing

Policy-based routing

Automatic routing

Tunnel policy

NO.36 Which of the following statements about LAN switch is correct?

LAN switch is transparent for user, it does not modify the data field of the forwarded frame.

LAN switch can still operate normally even when loop exists.

LAN switch can detect loop according to the contents of the packet.

LAN switch can modify the data field of the forwarded frame when necessary.

NO.37 Which of the following statements regarding Attachment Bit are correct?

After the Level! router receives Level-1 LSP with Attachment bit set to 1, it will generates default route with the nearest Level-1-2 router as the next hop.

The Attachment Bit can be generated by the Level-2 or Level-1-2 router.

The Attachment Bit can be generated in Level-2 LSP.

The Attachment Bit is carried In Level-1 LSP generated by Level-1-2 router connected to another area.

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