[Oct-2021] H12-222 Pre-Exam Practice Tests | Exam Questions and Answers for Huawei-certification Study Guide
HCIP-Routing&Switching-IENP(Huawei Certified ICT Professional-Improving Enterprise Network Performance) Certification Sample Questions
NEW QUESTION 45
MPLS is short for multiprotocol label switching.
Which of the following statements regarding MPLS labels are true? (Multiple Choice)
- A. Similar to VPI/VCI in ATM packets and DLCI in Frame Relay packets, an MPLS label is a connection identifier.
- B. MPLS supports single-layer labels and multi-layer labels.
- C. An MPLS label, carried in a packet header, does not contain topology information and is globally significance.
- D. MPLS has multiple label distribution protocols, such as, Label Distribution Protocol (LDP).
- E. An MPLS label is a short fixed-length identifier with only local significance, and is used to uniquely indicate the FEC to which a packet belongs.
Answer: A,B,D,E
NEW QUESTION 46
Which of the following statements regarding Huawei eSight network management software is false?
- A. eSight is a lightweight system and a wizard is available for eSight installation.
- B. eSight provides corresponding solutions for different customers.
- C. eSight adopts the C/S architecture, so users can access eSight using a browser anytime, anywhere.
- D. eSight can uniformly manage devices from multiple vendors.
Answer: C
NEW QUESTION 47
Simple traffic classification uses the DSCP priority of IP packets, the EXP priority of MPLS packets, and 802.1p priority of VLAN packets.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 48
BFD is a universal fast detection technology that can implement fast switchover, so BFD does not need to be used with other fast switching technologies.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 49
Which of the following items is not the disadvantage of the traditional congestion avoidance mechanism (tail drop)?
- A. High jitter and long delay
- B. High cost
- C. Global TCP synchronization
- D. Packets are discarded without differentiating the priority
Answer: B
NEW QUESTION 50
Which of the following command is used to configure remote port mirroring on a Huawei router to send the packets mirrored on the remote mirrored port to the monitoring device through the Layer 3 IP network?
- A. sever destination-ip 10.1.0.1 source-ip 192.168.1.1
- B. mirror-sever destination-ip 10.1.0.1 source-ip 192.168.1.1
- C. monitor-sever destination-ip 10.1.0.1 source-ip 192.168.1.1
- D. observe-sever destination-ip 10.1.0.1 source-ip 192.168.1.1
Answer: A
NEW QUESTION 51
BFD is a universal fast detection technology that can implement fast switchover, so BFD does not need to be used with other fast switching technologies.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 52
Which of the following methods can be used to improve network QoS? (Multiple Choice)
- A. Using high-performance devices
- B. Provide services at different times for different business
- C. Increasing link bandwidth
- D. Using proper queue scheduling and congestion avoidance mechanisms
Answer: A,C,D
NEW QUESTION 53
What is the default sending interval of BFD packets?
- A. 1000ms
- B. 100ms
- C. 5s
- D. 10s
Answer: A
NEW QUESTION 54
On the network shown in the following figure, all the devices run MPLS. The downstream switch SWA sends a label mapping message with IP address 1.1.1.1 to SWB. After SWB receives the label mapping message, it distributes a label to SWC. After SWC receives the label, it sends a label to SWD. Which are the label distribution control mode and label advertisement mode on this network?
- A. Independent + DoD
- B. Independent + DU
- C. Ordered + DoD
- D. Ordered + DU
Answer: D
NEW QUESTION 55
VXLAN is irrelevant to SDN technology.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 56
What is the default priority of the device in a VRRP group?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 57
What is the characteristic of the stateful inspection firewall?
- A. It can only detect the network layer.
- B. It detects each packet.
- C. The processing performance of subsequent packets is good.
- D. The processing speed is low.
Answer: C
NEW QUESTION 58
Which of the following parameters is optional when you configure a RADIUS server template on a Huawei switch?
- A. Shared-key
- B. Authentication server IP address and port
- C. Accounting server address and port
- D. Automatic RADIUS user detection
Answer: D
NEW QUESTION 59
The LDP session establishment process will go through the opensent status.
Which state will the opensent state change to after the device receives an Initialization message and sends a Keepalive message?
- A. operational
- B. initialized
- C. non-existent
- D. openrec
Answer: D
NEW QUESTION 60
If security policy is not configured between firewall domains or when searching for a security policy, all security policies are not hit, the default packet filtering action between domains is performed by default. ( )
- A. Reporting administrator
- B. Only allowed to pass a part
- C. Refusal to pass
- D. Different applications have different default actions
Answer: C
NEW QUESTION 61
On a MPLS network, switches can distribute labels.
Which of the following statements regarding label distribution control mode is true?
- A. The downstream LSR determines a label bound to a specific FEC, and then notifies the upstream LSR.
- B. The upstream LSR and downstream LSR with label advertisement adjacencies may use different label distribution control modes.
- C. In Downstream on Demand (DoD) mode, an LSR distributes a label to an FEC without having to receive the label request message from its upstream LSR.
- D. In Downstream Unsolicited (DU) mode, an LSR distributes a label to an FEC after receiving a label request message from its upstream LSR.
Answer: A
NEW QUESTION 62
If the DHCP client IP address is not extended after 87.5% of the lease is reached, which packet is used by the client to extend the IP address lease?
- A. DHCP Release unicast packet
- B. DHCP Discover broadcast packet
- C. DHCP Request broadcast packet
- D. DHCP Request unicast packet
Answer: C
NEW QUESTION 63
MPLS is short for multiprotocol label switching. Which of the following statements regarding MPLS labels are true? (Multiple Choice)
- A. Similar to VPI/VCI in ATM packets and DLCI in Frame Relay packets, an MPLS label is a connection identifier.
- B. MPLS supports single-layer labels and multi-layer labels.
- C. An MPLS label, carried in a packet header, does not contain topology information and is globally significance.
- D. MPLS has multiple label distribution protocols, such as, Label Distribution Protocol (LDP).
- E. An MPLS label is a short fixed-length identifier with only local significance, and is used to uniquely indicate the FEC to which a packet belongs.
Answer: A,B,D,E
NEW QUESTION 64
How is NFV defined?
- A. Network architecture virtualization
- B. Network function virtualization
- C. Network bus virtualization
- D. Network infrastructure virtualization
Answer: B
NEW QUESTION 65
When the virtual router responds to ARP Request packets, the actual MAC address of the master router is used,
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 66
Which command is used to enable association between BFD and static default mute?
- A. ip mute-static 0.0.0.0 0.0.0.0 10.0.12.2 bfd-session 1
- B. ip mute-static 0.0.0.0 0.0.0.0 10.0.12.2 track session 1
- C. ip mute-static 0.0.0.0 0.0.0.0 10.0.12.2 track bfd-session 1
- D. ip mute-static 0.0.0.0 0.0.0.0 10.0.12.2 track 1
Answer: C
NEW QUESTION 67
The NAT address pool configuration command is as follows.
What is the meaning of no-pat?
- A. The destination interface is not converted.
- B. The source interface is not converted.
- C. The address is not translated.
- D. The interface is multiplexed.
Answer: B
NEW QUESTION 68
A VPN instance is also called a VPN routing and forwarding (VRF) table. Which of the following statements is false?
- A. Each VPN instance can be regarded as a virtual router, which maintains an independent address space and has one or more interfaces connected to the VPN.
- B. VPN instances on a PE are independent of each other.
- C. A PE maintains multiple routing and forwarding tables, including a public routing and forwarding table and one or more VRFs.
- D. A VPN instance can be bound to multiple sites. Multiple sites can be bound to one VPN instance.
Answer: D
NEW QUESTION 69
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