Question 1

Which of the following statements regarding the LSA header information in AS-External-LSA is false?

Accepted Answer

The Forwarding Address in an AS-External-LSA is not always 0.0.0.0; it can be set to a non-zero value to optimize routing by providing a better next-hop address.

Question 2

The greatest difference between a Fat AP and a Fit AP is that a Fat AP provides access to more users, has higher performance, and is more applicable to large networks.

Accepted Answer

The greatest difference is that a Fat AP operates independently with its own management and configuration, while a Fit AP relies on a central controller for management and configuration.

Question 3

When configuring source NAT with no-pat configuration parameters, which of the following statements is true?

Accepted Answer

In a no-pat (no port address translation) configuration, only the source IP address is translated, while the source port remains unchanged.

Question 4

Which of the following statements regarding Local-Preference is true?

Accepted Answer

Local-Preference is a well-known discretionary attribute used within an AS to influence outbound traffic, and its default value is 100.

Question 5

BGP routers establish peer relationships using UDP.

Accepted Answer

BGP routers establish peer relationships using TCP, not UDP, specifically on port 179.

Question 6

When a large number of IP phones and WLAN APs exist on a network, which of the following switches is used?

Accepted Answer

Switches supporting PoE (Power over Ethernet) are used to provide power to IP phones and WLAN APs over the network cable, eliminating the need for separate power supplies.

Question 7

Which of the following statements regarding MUX VLAN is false?

Accepted Answer

VLAN mapping and VLAN stacking cannot be configured on an interface after MUX VLAN is enabled, making statement C false.

Question 8

eSight single-server mode allows login of only one user. If another user logs in, the system displays a message indicating that a user is online currently.

Accepted Answer

The answer of eSight single-server mode allows login of only...

Question 9

On a carrier's MPLS VPN network, PE1 and PE2 transmit data packets between VPNs. After PE1 receives VPN route 172.16.1.0/24 from a client, it converts the route into a VPNv4 route and distributes label 1027 to the packet. After the packet arrives at PE2, PE2 distributes label 1025 to the packet. When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted over the carrier network?

Accepted Answer

The outer label is the one used by the MPLS network to route the packet to the correct PE router, which is 1025 in this case. The inner label is the one assigned by the originating PE router (PE1) for the VPN route, which is 1027.

Question 10

VXLAN is irrelevant to SDN technology.

Accepted Answer

The answer of VXLAN is irrelevant to SDN technology....

Question 11

In the OSPF protocol, the unit of bandwidth-reference command is Mbit/s.

Accepted Answer

The OSPF protocol uses the bandwidth-reference command to set the reference bandwidth in Mbit/s for calculating OSPF cost.

Question 12

During the DHCP interaction process, the DHCP server and client exchange various types of packets. Which of the following packets is not sent from the client to the server?

Accepted Answer

The answer of During the DHCP interaction process, the DHCP...

Question 13

Which are the two subfields in the port identifier of the uplink port on a non-root switch in RSTP?

Accepted Answer

The port identifier of the uplink port on a non-root switch in RSTP consists of a 1-byte port priority and a 1-byte port number.

Question 14

If some devices on a network run MPLS (MPLS domain is encapsulated in the IP domain), labels are generated only for direct routes of devices running MPLS. Labels are not generated for the routes originated from other devices in the IP domain.

Accepted Answer

In an MPLS domain encapsulated in an IP domain, labels are generated only for direct routes of devices running MPLS. This is because the MPLS domain is isolated from the IP domain, and labels are only used within the MPLS domain.

Question 15

Which of the following statements regarding the alarm is fault "OSPF/2/IFAUTFAIL(OID)[1.3.6.1.2.1.14.16.2.6]: A packet is received on a non-virtual interface from a router whose authentication key or authentication type conflicts with the local authentication key or authentication type. (IfipAddress=[ip-address], AddressLessIf=[interface-index], ProcessId=[process-Id], RouterId=[router-id], PacketSrc=[source-ip-address], ConfigErrorType=[error-type], PacketType=[packet-type], InstanceName=[instance-name])"?

Accepted Answer

The alarm indicates a mismatch in authentication keys or types, which points to incorrect interface authentication configuration.

Question 16

Which of the following statements regarding traffic policing is true? (Choose all that apply.)

Accepted Answer

Traffic policing can mark packets with different colors to indicate their compliance with the traffic contract. When the rate is exceeded, packets are typically dropped rather than buffered, as buffering is more associated with traffic shaping.

Question 17

Which problems of the single spanning tree network can be solved by MSTP? (Choose three.)

Accepted Answer

The answer of Which problems of the single spanning tree...

Question 18

Which of the following statements regarding AS_Path is false?

Accepted Answer

BGP prefers the route with the shorter AS_Path attribute, not the longer one, as it indicates a shorter path to the destination.

Question 19

Which of the following statements regarding the software and configuration backup is true?

Accepted Answer

Backup is crucial for restoring network functions in extreme cases, ensuring that systems can be quickly recovered and operational after failures or data loss.

Question 20

Which of the following is the purpose of access security optimization?

Accepted Answer

The answer of Which of the following is the purpose...

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