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Exam Code:	H12-821_V1.0
Exam Name:	HCIP-Datacom-Core Technology V1.0
Certification Provider:	Huawei
Free Question Number:	140
Version:	v2025-10-16
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# of Questions views:	1430
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Exam Question List: Question 1: On the OSPF network shown in the figure, an adjacency has be...; Question 2: When a BGP device sends an Open message to establish a peer ...; Question 3: On an OSPF network, LSDBs are used to store LSAs. Common LSA...; Question 4: In IPsec, an SA (Security Association) is uniquely identifie...; Question 5: In IP multicast, RPF routes can be elected only from among u...; Question 6: BFD control packets are encapsulated in UDP packets for tran...; Question 7: IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Gro...; Question 8: Which of the following statements is false, based on the fol...; Question 9: Which of the following statements about the forwarding plane...; Question 10: By default, a router interface sends PIM Hello messages at a...; Question 11: Which of the following statements about multicast packet for...; Question 12: After the administrator of an enterprise deploys a DHCP serv...; Question 13: IGMPv2 uses the timeout mechanism for group members leaving ...; Question 14: Typically, a protocol that occupies two ports during communi...; Question 15: GRE is a VPN encapsulation technology that is widely used to...; Question 16: GRE is a VPN technology that can implement packet transmissi...; Question 17: According to BGP route selection rules, the route with the h...; Question 18: STAs stay on different subnets before and after Layer 3 roam...; Question 19: When deploying a VRRP network, an enterprise administrator s...; Question 20: Multiple BGP processes cannot be configured on the same rout...; Question 21: NETCONF is a network configuration protocol that automates n...; Question 22: An ACL can be used to match routes or data, but cannot be us...; Question 23: Which of the following fields in DD packets is used for impl...; Question 24: On a BGP network, a route-policy can be used to modify route...; Question 25: A non-client is an IBGP peer that functions as neither an RR...; Question 26: There are two BFD operating modes. In_______mode, the local ...; Question 27: BFD can quickly detect faults in channels at multiple networ...; Question 28: On an RSTP network, port roles are optimized to overcome the...; Question 29: OSPF neighbors have multiple states, such as Down, Init, 2-w...; Question 30: Which of the following PIM protocol packets have unicast des...; Question 31: On an OSPF network, there are multiple types of packets, eac...; Question 32: A large enterprise deploys a WLAN in VRRP HSB mode to ensure...; Question 33: Which of the following values is the Reserved/Circuit Type f...; Question 34: Which of the following statements regarding an IP prefix are...; Question 35: Which of the following statements regarding OSPF is true?...; Question 36: In IP multicast transmission, packets are transmitted from a...; Question 37: A local router runs IS-IS and its command output is shown in...; Question 38: See the following figure. RTA, RTB, RTC, and RTD are in the ...; Question 39: In BGP, Notification messages are used to request peers to r...; Question 40: Which of the following statements regarding OSPF route summa...; Question 41: On a P2P IS-IS network, after a neighbor relationship is est...; Question 42: As shown in the figure, SWA, SWB, SWC, and SWD run the Rapid...; Question 43: On an IS-IS network, the length and components of a NET are ...; Question 44: Which of the following scenarios is not suitable for deployi...; Question 45: In a route-policy, which of the following BGP attributes can...; Question 46: Which of the following is used as the destination port for s...; Question 47: When IPv4 unicast packets are transmitted over Ethernet, the...; Question 48: Which of the following attributes must be carried when BGP s...; Question 49: On a broadcast IS-IS network, a DIS needs to be elected to c...; Question 50: OSPF has multiple types of routes with varying priorities. W...; Question 51: Which of the following statements about stack split is false...; Question 52: Which of the following statements is false about the session...; Question 53: Which of the following attacks is not the network layer atta...; Question 54: An engineer sets the CAPWAP heartbeat detection interval to ...; Question 55: In the VRP, by default, the routes imported by BGP will be a...; Question 56: On an OSPF network, one router with P2P as the network type ...; Question 57: On an RSTP network, port priorities may be compared during r...; Question 58: L2TP does not provide security encryption. Therefore, other ...; Question 59: Roaming technology is typically used on a large WLAN to ensu...; Question 60: Which of the following statements about BFD operating modes ...; Question 61: On the OSPF network shown in the figure, R1, R2, and R3 run ...; Question 62: What is the correct procedure for a VLAN pool to assign term...; Question 63: BGP itself does not discover routes. Therefore, other routes...; Question 64: The traffic limiting policy feature only supports the number...; Question 65: A company has a stack consisting of three switches that are ...; Question 66: RSTP provides different functions in different scenarios. Wh...; Question 67: On an OSPF network, if the network type is NBMA, a router un...; Question 68: After a BGP peer relationship is established between two end...; Question 69: If a router ID is configured in both the system via and the ...; Question 70: When an SSH client accesses an SSH server for the first time...; Question 71: Compress the 2001:0DBB:B8:0000:C030:0000:0000:09A0:CDEF addr...; Question 72: By default, if no router ID is configured but multiple loopb...; Question 73: When a router running BGP is in the Connect state, BGP start...; Question 74: Which three transmission modes are supported for IPv4 packet...; Question 75: BGP is a distance-vector protocol that implements route reac...; Question 76: Multicast applies to any point-to-multipoint data transmissi...; Question 77: On an OSPF network, Type 7 LSAs can be generated only by ASB...; Question 78: BFD provides fast fault detection independent of media and r...; Question 79: In the OSPF protocol, inter-area route calculation involves ...; Question 80: Four routers run IS-IS and have established adjacencies. The...; Question 81: A monitoring plane usually comprises the monitoring units of...; Question 82: As shown in the figure, R1 imports the direct route 10.1.1.0...; Question 83: On a WLAN, the HSB service sets up an HSB channel between tw...; Question 84: IPv6 defines multiple types of addresses. Which of the follo...; Question 85: After HSB is configured, the HSB channel fails to be establi...; Question 86: BFD for OSPF is deployed on a directly connected link. If th...; Question 87: During routine operation and maintenance, an engineer checks...; Question 88: The Neighbor Discovery Protocol (NDP) is an important basic ...; Question 89: SSH is a secure protocol that establishes tunnels for users ...; Question 90: During routine O&M, the administrator checks the IGMP co...; Question 91: When creating a single-hop BFD session for the first time, b...; Question 92: Which of the following statements about WLAN roaming are tru...; Question 93: To prevent loops on an STP network, after a designated port ...; Question 94: A router forwards traffic based on a FIB table. Which of the...; Question 95: A campus network uses OSPF for network communication. The di...; Question 96: Which of the following statements regarding the MED value in...; Question 97: A Layer 2 switch supports multiple types of Ethernet interfa...; Question 98: Which of the following is the default interval at which the ...; Question 99: Which of the following statements regarding the LSA age fiel...; Question 100: An enterprise administrator wants to configure single-hop BF...; Question 101: A large shopping mall configures a VLAN pool to prevent netw...; Question 102: Regarding the route-policy set-cost configuration below, whi...; Question 103: This configuration is part of RTA configuration. Which of th...; Question 104: Route summarization is a mechanism that combines multiple ro...; Question 105: There are two types of routing entries on a PIM network. (S,...; Question 106: Match the following IPv4 multicast protocols with the corres...; Question 107: On an OSPF network, all OSPF routers generate Router LSAs. I...; Question 108: Which of the following statements regarding the BGP error di...; Question 109: On an RSTP network, if a port receives an RST BPDU and finds...; Question 110: A switch running a later IGMP version can identify Report me...; Question 111: On an IS-IS network, areas are divided by router, and a rout...; Question 112: In BGP, the MED attribute is transmitted only between two ne...; Question 113: To prevent inter-area routing loops, OSPF does not allow adv...; Question 114: Which of the following statements regarding DR/BDR are false...; Question 115: On an IS-IS network, routers send LSPs to exchange link stat...; Question 116: What is the default sending interval of BFD packets?...; Question 117: In IPv6, to communicate with a destination host, a host must...; Question 118: When a routing policy is used to filter routes, which of the...; Question 119: Which of the following attributes cannot be directly referen...; Question 120: To enable PC1 to access PC2 using the IP address of the fire...; Question 121: OSPF has several types of special areas, which are used to r...; Question 122: An IP prefix list is a common matching tool used in routing ...; Question 123: Compared with RSTP, which of the following port roles are ad...; Question 124: To overcome the disadvantages of STP, RSTP changes the forma...; Question 125: VRRP defines three states. Only the device in which state ca...; Question 126: On a network, some switches are enabled with RSTP and some s...; Question 127: Which of the following statements regarding BGP route advert...; Question 128: Which of the following statements regarding different LSA ty...; Question 129: Which of the following TLVs is used by ISIS to describe the ...; Question 130: Compared with OSPF, IS-IS has higher scalability because IS-...; Question 131: See the network shown in the following figure. (Exhibit) R1 ...; Question 132: A router performs a lookup in its FIB table for a packet. If...; Question 133: On the campus OSPF network shown in the following figure, th...; Question 134: What parameters can a DHCP6 server assign to a DHCPv6 client...; Question 135: Which of the following statements regarding Local-Preference...; Question 136: Which of the following statements are true about IP multicas...; Question 137: Which of the following statements regarding the summary auto...; Question 138: BGP routes have multiple path attributes. When a router adve...; Question 139: The typical characteristics of the AI era are that it focuse...; Question 140: Which of the following routing protocols support the default...

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