최신Huawei HCIP-Datacom-Core Technology V1.0 - H12-821_V1.0무료샘플문제
문제1
BGP can select routes based on the AS_Path attribute. Therefore, in some cases, a route-policy needs to be used to modify the AS_Path attribute for route selection. Which of the following parameters can be specified in the apply as-path command for a route-policy to modify this attribute?
BGP can select routes based on the AS_Path attribute. Therefore, in some cases, a route-policy needs to be used to modify the AS_Path attribute for route selection. Which of the following parameters can be specified in the apply as-path command for a route-policy to modify this attribute?
정답: A,B,C
설명: (ITDumpsKR 회원만 볼 수 있음)
문제2
Route summarization is a mechanism that combines multiple routes. BGP supports automatic summarization and manual summarization on IPv6 networks.
Route summarization is a mechanism that combines multiple routes. BGP supports automatic summarization and manual summarization on IPv6 networks.
정답: A
설명: (ITDumpsKR 회원만 볼 수 있음)
문제3
STAs stay on different subnets before and after Layer 3 roaming. To enable the STAs to access the original network after roaming, network engineers need to configure user traffic to be forwarded to the original subnet over a CAPWAP tunnel.
STAs stay on different subnets before and after Layer 3 roaming. To enable the STAs to access the original network after roaming, network engineers need to configure user traffic to be forwarded to the original subnet over a CAPWAP tunnel.
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제4
In IPv6, to communicate with a destination host, a host must obtain the link-layer address of the destination host through ARP.
In IPv6, to communicate with a destination host, a host must obtain the link-layer address of the destination host through ARP.
정답: A
설명: (ITDumpsKR 회원만 볼 수 있음)
문제5
As shown in the figure, the stateful inspection firewall forwards the packet because the packet matches the session status of the firewall.
As shown in the figure, the stateful inspection firewall forwards the packet because the packet matches the session status of the firewall.
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제6
On an OSPF network, all OSPF routers generate Router LSAs. If the E bit in a Router LSA is set to 1, the router that generates this LSA is a/an ______.
On an OSPF network, all OSPF routers generate Router LSAs. If the E bit in a Router LSA is set to 1, the router that generates this LSA is a/an ______.
정답: D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제7
On an IP network, both PBR and routing policies are commonly used for routing and traffic control, but they are different from each other. Match PBR and routing policy with their functions.(Token is reusable)
On an IP network, both PBR and routing policies are commonly used for routing and traffic control, but they are different from each other. Match PBR and routing policy with their functions.(Token is reusable)
정답:
문제8
When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.
When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제9
On the network shown in the figure, R1 advertises a BGP route to an EBGP peer. Which of the following statements are true about this process?
Exhibit:
BGP topology showing R1 in AS 100 advertising route 10.0.1.0/24 to R2 in AS 200, with R3 as an IBGP neighbor
On the network shown in the figure, R1 advertises a BGP route to an EBGP peer. Which of the following statements are true about this process?
Exhibit:
BGP topology showing R1 in AS 100 advertising route 10.0.1.0/24 to R2 in AS 200, with R3 as an IBGP neighbor
정답: A,C,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제10
The BFD (Bidirectional Forwarding Detection) state machine implements a three-way handshake for BFD session setup or teardown. Which of the following session states are involved in BFD session setup?
The BFD (Bidirectional Forwarding Detection) state machine implements a three-way handshake for BFD session setup or teardown. Which of the following session states are involved in BFD session setup?
정답: A,B,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제11
There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
정답:
SPT
Explanation:
Routing Entries in PIM
(S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
(S, G) entries are used in both PIM-DM and PIM-SM modes.
PIM-DM and PIM-SM Modes
In PIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist.
(S, G) entries represent source-specific paths created after the flooding stage.
In PIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
HCIP-Datacom-Core Reference
The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
Explanation:
Routing Entries in PIM
(S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
(S, G) entries are used in both PIM-DM and PIM-SM modes.
PIM-DM and PIM-SM Modes
In PIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist.
(S, G) entries represent source-specific paths created after the flooding stage.
In PIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
HCIP-Datacom-Core Reference
The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
문제12
In a route-policy, which of the following BGP attributes can be used in apply clauses?
In a route-policy, which of the following BGP attributes can be used in apply clauses?
정답: C,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제13
On a WLAN, the HSB service sets up an HSB channel between two devices that back up each other, maintains the channel status, and backs up data. Which of the following can HSB back up in real time?
On a WLAN, the HSB service sets up an HSB channel between two devices that back up each other, maintains the channel status, and backs up data. Which of the following can HSB back up in real time?
정답: A,C,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제14
OSPF networks are classified into four types of networks by link layer protocol. Drag the following link layer protocols to the corresponding network types.(Token is reusable)
OSPF networks are classified into four types of networks by link layer protocol. Drag the following link layer protocols to the corresponding network types.(Token is reusable)
정답:
Explanation:
Network Types and Corresponding Link Layer Protocols
Broadcast: Ethernet
Point-to-Point (P2P): PPP, HDLC
Point-to-Multipoint (P2MP): PPP
Non-Broadcast Multi-Access (NBMA): Frame Relay
OSPF Network Types:
OSPF classifies networks based on link layer protocols into the following types:
Broadcast: This type assumes that all routers on the network can communicate directly with one another using multicast or broadcast frames. Ethernet networks are typical examples.
Point-to-Point (P2P): This type is used for links that connect two routers directly. Common protocols include PPP (Point-to-Point Protocol) and HDLC.
Point-to-Multipoint (P2MP): This type simulates multiple point-to-point connections over a single physical network, often used in WAN scenarios where PPP is employed.
Non-Broadcast Multi-Access (NBMA): These networks connect multiple devices but lack native broadcast capability, such as Frame Relay.
Reference: HCIP-Datacom-Core Technology Training Material (OSPF Network Types).
Explanation of Matches:
Broadcast - Ethernet: Ethernet supports broadcast and multicast communication, making it a suitable example of a broadcast OSPF network.
P2P - PPP, HDLC: Both PPP and HDLC are designed for direct communication between two nodes, fitting the P2P category.
P2MP - PPP: In WANs, PPP often operates in a point-to-multipoint configuration, simulating separate connections for each endpoint.
NBMA - Frame Relay: Frame Relay is a classic NBMA technology where direct communication between devices requires manual configuration, as there is no inherent broadcast capability.
Conclusion:This classification ensures that OSPF operates efficiently over different network types by adapting neighbor discovery and LSA propagation mechanisms to the underlying link layer technology.