Real Exam Questions H31-124_v2.0 Dumps Exam Questions in here [Oct-2021]
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NEW QUESTION 34
Which of the following access modes can be used by leaf nodes in a data center?
- A. ToR Deploying an SVF System
- B. Deploying the M-Lag on the ToR
- C. Single-node system deployment
- D. ToR Stack Deployment
Answer: A,B,D
NEW QUESTION 35
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?
- A. The device connected to GE 3/0/1 Is a multicast router.
- B. 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. - C. IGMP snooping has been enabled on the switch.
- D. 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.
Answer: D
NEW QUESTION 36
Which of the following statements disobey the basic principle of area division?
- A. One network maybe includes high-end, mid-end and low-end routers. Generally, all of these routers will be in same area.
- B. 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. - C. Make all routers with larger routing-table into one area.
- D. If the ISP runs OSPF protocol in the whole province network, then one city can be taken as one area.
Answer: B,C,D
NEW QUESTION 37
Compared with VPLS, what are the characteristics of EVPN?
- A. 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.
- B. 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.
- C. 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.
- D. 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.
Answer: A,B,C
NEW QUESTION 38
Which of the following statements about layer 2 LAN switch are incorrect?
- A. LAN switch can learn Mac address automatically.
- B. LAN switch will modify the data link layer header of the packet and then forward it.
- C. LAN switch operates at data link layer.
- D. LAN switch will modify the network layer header of the packet and then forward it.
Answer: B,D
NEW QUESTION 39
Which of the following statements about CAR are correct?
- A. CAR can be used for incoming interface and outgoing interface.
- B. CAR and queue scheduling cannot be used at the same time because of confliction.
- C. CAR uses token bucket mechanism to measure traffic and allocate bandwidth.
- D. CAR can be used to limit the rate of the specific type of traffic.
Answer: B
NEW QUESTION 40
Policy-based Routing can be used for traffic classification and marking when deploying QoS. Classification can be made based on ACL and packet length, marking can be made by modifying DSCP or IP Precedence field of packet.
- A. True
- B. False
Answer: A
NEW QUESTION 41
How does MPLS BGP VPN handle the problem of address overlapping of different VPN sites?
- A. To allocate different LSP for each VPN.
- B. To allocate unique RD for each VPN.
- C. To use different routing protocols In the backbone network for afferent VPN.
- D. To allocate unique RT for each VPN.
- E. To maintain separate VRF lor different VPN.
Answer: B,E
NEW QUESTION 42
PIM-SM relies on particular unicast routing protocol for RPF check.
- A. False
- B. True
Answer: A
NEW QUESTION 43
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.
- A. True
- B. False
Answer: A
NEW QUESTION 44
What are the main features of the SDN controller?
- A. Separating the Data Plane and Control Plane
- B. Open interface
- C. Centralized networking
- D. Upgrading Routing Protocols
Answer: A,C
NEW QUESTION 45
Which of the following statements about the priority of zone in the Eudemon are correct?
- A. The priority of the Trust zone is 80
- B. The priority of the DMZ is 50
- C. The priority of the Untrust zone is 15
- D. The priority of the Local zone is 100
Answer: B,D
NEW QUESTION 46
Which of the following type of MPLS L2 VPN carries only one label on an MPLS network?
- A. Kompella
- B. Martini
- C. CCC
- D. SVC
Answer: A
NEW QUESTION 47
Which of the following statements about LAN switch is correct?
- A. LAN switch can modify the data field of the forwarded frame when necessary.
- B. LAN switch is transparent for user, it does not modify the data field of the forwarded frame.
- C. LAN switch can detect loop according to the contents of the packet.
- D. LAN switch can still operate normally even when loop exists.
Answer: C
NEW QUESTION 48
Affinity attributes is link attributes in MPLS TE, it is configured under physical interface.
- A. False
- B. True
Answer: A
NEW QUESTION 49
Which of the following statements are correct?
- A. VPN FRR implements quick traffic switchovers if a PE becomes faulty.
- B. TE FRR Implements quick traffic switchovers if a PE becomes faulty.
- C. Both TE FRR and VPN FRR are used to protect tunnels, and therefore they can replace each other.
- D. After VPN FRR is deployed, the end-to-end service convergence time is shorter than 1 second.
Answer: A,D
NEW QUESTION 50
Which of the following statements regarding DIS election is correct?
- A. The IS-IS router with the highest priority in the whole broadcast network will be elected as the DIS.
- B. DIS election is configured manually.
- C. When a DIS fails, the backup DIS will take over.
- D. When the priority is the same, the router with higher IP address will be elected as the DIS.
Answer: A,C,D
NEW QUESTION 51
Which of the following statements regarding the description of MPLS are correct?
- A. Core LSR forwards packets based on label.
- B. Ingress LER forwards packets based on label.
- C. Egress LER forwards packets based on IP routing table.
- D. Core LSR forwards packets based on IP routing table.
Answer: A,B,C
NEW QUESTION 52
Which of the following statements is correct regarding Hellolnterval in OSPF?
- A. The range of Hellolnterval is from 0 to 65535.
- B. Hellolnterval can be modified by administraor.The smaller the value, the faster (he topology change discovery.
- C. Hellolnterval is 10 seconds for NBMA and broadcast network by default.
- D. Hellolnterval is 30 seconds for P2P and P2MP network by default.
Answer: A
NEW QUESTION 53
Assuming that a router which only supports IP Precedence receives a packet marked with DSCP, which of the following statements is correct?
- A. Eight levels of AF in DSCP are mapped into eight levels of IP Precedence.
- B. All 8 bits of TOS are set to zero.
- C. The first three bits of DSCP are mapped into three bits of IP Precedence.
- D. The last three bits of DSCP are set to 101.
Answer: C
NEW QUESTION 54
Which of the following are two important working stages in PPPoE protocol?
- A. Session Stage
- B. Discovery Stage
- C. LCP
- D. NCP
Answer: A,B
NEW QUESTION 55
Compared with VPLS, what are the characteristics of EVPN?
- A. 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.
- B. 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.
- C. 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. - D. 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.
Answer: B
NEW QUESTION 56
Which of the following statements about CAR are correct?
- A. CAR uses token bucket mechanism to measure traffic and allocate bandwidth.
- B. CAR and queue scheduling cannot be used at the same time because of confliction.
- C. CAR can be used for incoming interface and outgoing interface.
- D. CAR can be used to limit the rate of the specific type of traffic.
Answer: A,C,D
NEW QUESTION 57
Which of the following statements about the priority of zone in the Eudemon are correct?
- A. The priority of the Trust zone is 80
- B. The priority of the DMZ is 50
- C. The priority of the Local zone is 100
- D. The priority of the Untrust zone is 15
Answer: B,C,D
NEW QUESTION 58
The PPPoE Session Stage is a complete PPP procedure.
- A. True
- B. False
Answer: A
NEW QUESTION 59
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