[Mar 29, 2022] Get New H31-124_v2.0 Certification Practice Test Questions Exam Dumps
Real H31-124_v2.0 Exam Dumps Questions Valid H31-124_v2.0 Dumps PDF
NEW QUESTION 21
Which of the following statements regarding the description of LDP is incorrect?
- A. Between two LSRs that run LDP, the LDP session is established and Label/FEC mapping information is exchanged.
- B. In MPLS, LDP is used to implement label distribution, label control and label retention.
- C. The two routers between which LDP session is established are called LDP Peer.
- D. The UDP and TCP port number for LDP is 64.
Answer: A,B,C
NEW QUESTION 22
Which of the following statements are correct?
- A. After VPN FRR is deployed, the end-to-end service convergence time is shorter than 1 second.
- B. VPN 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. TE FRR Implements quick traffic switchovers if a PE becomes faulty.
Answer: A,B
NEW QUESTION 23
Compared with VPLS, what are the characteristics of EVPN?
- A. 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.
- B. 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.
- C. 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.
- D. 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.
Answer: C
NEW QUESTION 24
The OF election mechanism avoids network resource waste caused by repeated traffic received by CE1 from two PEs. Which of the following NIRI Is used to implement this feature?
- A. Ethernet Segment Route
- B. Ethernet Auto-Discovery route
- C. Inclusive Multicast Route
- D. MAC advertisement route
Answer: A
NEW QUESTION 25
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 26
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.
- A. True
- B. False
Answer: A
NEW QUESTION 27
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 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. - B. 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.
- C. IGMP snooping has been enabled on the switch.
- D. The device connected to GE 3/0/1 Is a multicast router.
Answer: B,C,D
NEW QUESTION 28
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 can still operate normally even when loop exists.
- C. LAN switch can detect loop according to the contents of the packet.
- D. LAN switch is transparent for user, it does not modify the data field of the forwarded frame.
Answer: D
NEW QUESTION 29
How does MPLS BGP VPN handle the problem of address overlapping of different VPN sites?
- A. To allocate unique RD for each VPN.
- B. To use different routing protocols In the backbone network for afferent VPN.
- C. To allocate unique RT for each VPN.
- D. To maintain separate VRF lor different VPN.
- E. To allocate different LSP for each VPN.
Answer: B
NEW QUESTION 30
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"?
- A. Change the next hop of the routes generated locally as 12.12.12.1
- B. Change the next hop of the routes received from peer 12.12.12.2 as 12.12.12.2
- C. Change the next hop of the routes advertised to peer 12.12.12.2 as 12.12.12.1
- D. This command does not work at all
Answer: D
NEW QUESTION 31
Which of the following type of MPLS L2 VPN carries only one label on an MPLS network?
- A. SVC
- B. Martini
- C. Kompella
- D. CCC
Answer: C
NEW QUESTION 32
Which of the following statements regarding IP address 224.0.0.1 are correct?
- A. It represents all the routers.
- B. It is a private IP address.
- C. It is a multicast IP address.
- D. It represents all the hosts and routers.
Answer: D
NEW QUESTION 33
What are the three components of PPP?
- A. LCP (Link Control Protocol)
- B. PPPOE
- C. The extension protocol of PPP
- D. NCP (Network Control Protocol)
Answer: A,C,D
NEW QUESTION 34
The Ethernet switch working in store and forward mode drops the frame with length smaller than 64 bytes.
- A. True
- B. False
Answer: A
NEW QUESTION 35
What are the main features of the SDN controller?
- A. Centralized networking
- B. Upgrading Routing Protocols
- C. Separating the Data Plane and Control Plane
- D. Open interface
Answer: A,C,D
NEW QUESTION 36
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 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.
- B. 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.
- C. IGMP snooping has been enabled on the switch.
- D. The device connected to GE 3/0/1 Is a multicast router.
Answer: B
NEW QUESTION 37
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