Question 1

In BGP, which type of message is periodically exchanged between BGP peers to maintain a BGP peer relationship?

Accepted Answer

A)  Open 
B)  Hello 
C)  Route-refresh 
D)  Keepalive

Question 2

MPLS technology replaces IP forwarding with label switching. Which of the following encapsulation modes is used when MPLS runs on Ethernet networks?

Accepted Answer

A)  Packet mode 
B)  Frame mode 
C)  Transport mode 
D)  Channel mode 
E)  Pipe mode

Question 3

Which of the following statements regarding the stateful inspection firewall is true?

Accepted Answer

A)  The stateful inspection firewall needs to match the rules for each incoming packet. 
B)  Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table. 
C)  When the stateful inspection firewall checks packets, packets of one same connection are not correlated. 
D)  The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

Question 4

Which of the following statements about the mVRRP backup group is false?

Accepted Answer

A)  Multiple service VRRP backup group can be bound to one mVRRP backup group. 
B)  An mVRRP backup group can serve as a service VRRP backup group and thus be bound to another mVRRP backup group. 
C)  One service VRRP backup group can be bound to only one mVRRP backup group. 
D)  After multiple service VRRP backup groups are bound to an mVRRP backup group, the mVRRP backup group determines the status of all the service VRRP backup groups by sending VRRP packets. This can reduce the number of VRRP packets to be sent and improve the packet processing efficiency.

Question 5

Which statements about the MUX VLAN configuration are true? (Choose two.)

Accepted Answer

A)  VLAN 10 is the principal VLAN 
B)  VLAN 11 is the principal VLAN 
C)  VLAN 12 is the subordinate separate VLAN

Question 6

When the DHCP relay receives a DHCP request message in which the giaddr (gateway IP address) field is 0, how does the DHCP relay process the DHCP request message?

Accepted Answer

A)  The DHCP relay fills its IP address in the giaddr field and transmits the DHCP request message to the DHCP server in unicast mode. 
B)  The DHCP relay fills its IP address in the giaddr field and transmits the DHCP request message in broadcast mode. 
C)  The DHCP relay retains the value of the giaddr field and transmits the DHCP request message to the DHCP server in unicast mode. 
D)  The DHCP relay retains the value of the giaddr field and transmits the DHCP request message in broadcast mode.

Question 7

Which of the following statements about the BFD demand mode are true? (Choose two.)

Accepted Answer

A)  The local system periodically sends BFD control packets, and the remote system detects the BFD control packets sent from the local system. 
B)  The local system detects the BFD control packets sent by itself. 
C)  If one system does not receive any BFD packets from its peer within a detection period, it advertises a session Down event. 
D)  Each system confirms its connections with other systems in a particular method. After a BFD session is set up, BFD control packets are no longer sent.

Question 8

Which of the following statements regarding the operation window time for a software upgrade is false?

Accepted Answer

A)  It is determined by the accepted service interruption duration. 
B)  It must be longer than the upgrade execution time. 
C)  Troubleshooting time must be reserved. 
D)  Only network maintenance personnel need to be notified of the operation window time, while the customer does not.

Question 9

The formula for calculating the MTTR is: MTTR = Fault detection time + Board replacement time + System initialization time + Link recovery time + Route convergence time + Forwarding recovery time. The smaller the addends are, the smaller the MTTR is and the higher the device availability is.

Accepted Answer

A) True 
 B)False

Question 10

When the GVRP registration mode is FORBIDDEN, no VLAN can be created or registered on the interface. In addition, which VLANs are deregistered on the interface?

Accepted Answer

A)  All VLANs except VLAN 1 
B)  All VLANs except VLAN 4095 
C)  All VLANs 
D)  All VLANs except the VLAN specified by the user

Question 11

For label switched packets that contain the same source and destination address and are transmitted via the same interface, the label switch path 0

Accepted Answer

A)  Must be different. 
B)  Must be the same. 
C)  May be the same.

Question 12

Which of the following statements about the Reverse Path Forwarding (RPF) mechanism are true? (Choose two.)

Accepted Answer

A)  Multicast RPF does not depend on unicast routing. 
B)  All multicast protocols adopt the RPF mechanism. 
C)  A router discards the received multicast packets if the packets fail the RPF check. 
D)  The RPF mechanism has two functions: 1. It prevents multicast routing loops; 2. It avoids forwarding redundant multicast data packets.

Question 13

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.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following statements about BFD are true? (Choose three.)

Accepted Answer

A)  It cannot be used to detect MPLS networks. 
B)  It provides low-load and short-duration detection for paths between adjacent forwarding engines. 
C)  It provides a unified mechanism for detecting all types of media and BFD-supporting protocols. 
D)  It is a bidirectional detection mechanism.

Question 15

Which of the following link efficiency mechanism can be used to compress RTP and TCP packet headers?

Accepted Answer

A)  IPHC 
B)  LFI 
C)  PPP 
D)  All of the above

Question 16

Which of the following is the priority value of the DMZ on the USG?

Accepted Answer

A)  10 
B)  50 
C)  75 
D)  85

Question 17

Which statements are true? (Choose three.)

Accepted Answer

A)  The routing ARP proxy allows the hosts on different physical networks of the same network segment to communicate with each other. 
B)  The intra-VLAN ARP proxy allows isolated users on a VLAN to communicate with each other. 
C)  The inter-VLAN ARP proxy allows hosts on different VLANs to communicate with each other through Layer 3. 
D)  The inter-VLAN ARP proxy function can't be enabled on the VLANIF interface of the super VLAN to implement communication between sub-VLANs.

Question 18

Which of the following LSPs are established in Downstream Unsolicited (DU) label advertisement mode and ordered label distribution control mode? (Choose three.)

Accepted Answer

A)  When the edge node finds a new destination address in its routing table that does not belong to any existing FEC, the edge node does not create a new FEC for the destination address. 
B)  An LSP is established by binding an FEC to a label and advertising the binding relationship to the neighboring LSR. 
C)  If the egress node has available labels for distribution, it allocates labels for the FEC and sends a label mapping message to the upstream node. 
D)  After receiving a label mapping message, the LSR adds the corresponding entry to the label forwarding table.

Question 19

OSPF supports two authentication modes: area authentication and interface authentication. The two authentication modes cannot be configured at the same time.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following statements is true regarding the function of VRRP?

Accepted Answer

A)  VRRP can improve default gateway reliability. 
B)  VRRP increases the routing protocol convergence speed. 
C)  VRRP is mainly used for traffic balance. 
D)  VRRP can provide one default gateway for different network segments, simplifying the PC gateway configuration.

Exam 5: HCNP-R&S Fast Track (Huawei Certified Network Professional - Routing & Switching Fast Track)

In BGP, which type of message is periodically exchanged between BGP peers to maintain a BGP peer relationship?

MPLS technology replaces IP forwarding with label switching. Which of the following encapsulation modes is used when MPLS runs on Ethernet networks?

Which of the following statements regarding the stateful inspection firewall is true?

Which of the following statements about the mVRRP backup group is false?

Which statements about the MUX VLAN configuration are true? (Choose two.)

When the DHCP relay receives a DHCP request message in which the giaddr (gateway IP address) field is 0, how does the DHCP relay process the DHCP request message?

Which of the following statements about the BFD demand mode are true? (Choose two.)

Which of the following statements regarding the operation window time for a software upgrade is false?

The formula for calculating the MTTR is: MTTR = Fault detection time + Board replacement time + System initialization time + Link recovery time + Route convergence time + Forwarding recovery time. The smaller the addends are, the smaller the MTTR is and the higher the device availability is.

When the GVRP registration mode is FORBIDDEN, no VLAN can be created or registered on the interface. In addition, which VLANs are deregistered on the interface?

For label switched packets that contain the same source and destination address and are transmitted via the same interface, the label switch path 0

Which of the following statements about the Reverse Path Forwarding (RPF) mechanism are true? (Choose two.)

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.

Which of the following statements about BFD are true? (Choose three.)

Which of the following link efficiency mechanism can be used to compress RTP and TCP packet headers?

Which of the following is the priority value of the DMZ on the USG?

Which statements are true? (Choose three.)

Which of the following LSPs are established in Downstream Unsolicited (DU) label advertisement mode and ordered label distribution control mode? (Choose three.)

OSPF supports two authentication modes: area authentication and interface authentication. The two authentication modes cannot be configured at the same time.

Which of the following statements is true regarding the function of VRRP?