최신Huawei HCIP-Datacom-Core Technology V1.0 - H12-821_V1.0무료샘플문제
문제1
GRE is a VPN encapsulation technology that is widely used to transmit packets across heterogeneous networks. Which of the following statements is false about GRE?
GRE is a VPN encapsulation technology that is widely used to transmit packets across heterogeneous networks. Which of the following statements is false about GRE?
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제2
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:
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.
* 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.
문제3
Which of the following statements regarding OSPF route summarization commands are true?
Which of the following statements regarding OSPF route summarization commands are true?
정답: A,B,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제4
Which of the following statements about multicast packet forwarding is true?
Which of the following statements about multicast packet forwarding is true?
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제5
Border Gateway Protocol (BGP) is a distance-vector routing protocol that implements route reachability between ASs. Which of the following protocol port numbers is used by BGP to establish BGP sessions?
Border Gateway Protocol (BGP) is a distance-vector routing protocol that implements route reachability between ASs. Which of the following protocol port numbers is used by BGP to establish BGP sessions?
정답: D
문제6
IGMP snooping enables a switch working at Layer 3 to establish a Layer 3 multicast forwarding table by listening to IGMP messages exchanged between the upstream Layer 3 device and the user hosts. The switch working at Layer 3 manages and controls the forwarding of multicast data packets based on the Layer 3 multicast forwarding table, thus suppressing multicast data flooding on the Layer 3 network.
IGMP snooping enables a switch working at Layer 3 to establish a Layer 3 multicast forwarding table by listening to IGMP messages exchanged between the upstream Layer 3 device and the user hosts. The switch working at Layer 3 manages and controls the forwarding of multicast data packets based on the Layer 3 multicast forwarding table, thus suppressing multicast data flooding on the Layer 3 network.
정답: A
문제7
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)
문제8
ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?
ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?
정답: A
설명: (ITDumpsKR 회원만 볼 수 있음)
문제9
A router uses an advanced ACL to filter data. The ACL configuration is shown below. Which of the following statements is false about the configuration?
csharp
CopyEdit
[Huawei] acl 3001
[Huawei-acl-adv-3001] rule permit icmp source 192.168.1.3 0 destination 192.168.2.0 0.0.0.255
A router uses an advanced ACL to filter data. The ACL configuration is shown below. Which of the following statements is false about the configuration?
csharp
CopyEdit
[Huawei] acl 3001
[Huawei-acl-adv-3001] rule permit icmp source 192.168.1.3 0 destination 192.168.2.0 0.0.0.255
정답: B
설명: (ITDumpsKR 회원만 볼 수 있음)
문제10
On a network, some switches are enabled with RSTP and some switches are enabled with STP. What will happen?
On a network, some switches are enabled with RSTP and some switches are enabled with STP. What will happen?
정답: C,D
설명: (ITDumpsKR 회원만 볼 수 있음)
문제11
In the OSPF protocol, intra-area route calculation involves only Router LSA, Network LSA, and Summary LSA.
In the OSPF protocol, intra-area route calculation involves only Router LSA, Network LSA, and Summary LSA.
정답: A
설명: (ITDumpsKR 회원만 볼 수 있음)