What is the default aging time of the MAC address table of Huawei switches?

• A.300
• B.400
• C.500
• D.5

Comment: *

Name: *

Email: *

Verification: *

A campus deploys OSPF to achieve network interoperability. An engineer configures R2 as shown in the figure. Which of the following description of LSAs in the OSPF network is wrong?

[R2] acl 2000
[R2-acl-basic-2000] rule deny
[R2-acl-basic-2000] quit
#
[R2] ospf
[R2-ospf-1] area 1
[R2-ospf-1-area-0.0.0.1] filter 2000 import
[R2-ospf-1-area-0.0.0.1] quit
[R2-ospf-1] default-route-advertise always

• A.There is no Type3 LSA flooding in Area2
• B.There is Type5 LSA flooding in Area2
• C.There is no Type3 LSA flooding in Area1
• D.There is Type5 LSA flooding in Area1

Comment: *

Name: *

Email: *

Verification: *

Which of the description of business priority in DSCP is correct?

• A.AF has higher priority than EF
• B.CS has the highest priority
• C.AF11 has higher priority than AF4
• D.AF11 has a higher packet loss rate than AF12

Comment: *

Name: *

Email: *

Verification: *

After the cutover is completed, what items generally need to be checked? (Multiple choice)

• A.Data flow
• B.Physical topology
• C.Software Version
• D.Control Plane Entries

Comment: *

Name: *

Email: *

Verification: *

Regarding the description of the encapsulation format of labels in MPLS, which of the following is correct? (Multiple choice)

• A.For the packets of Ethernet and PPP, the label stack is located between the Layer 2 header and the data like the 'cushion layer': when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag
• B.The TTL field in the label and the TTL (Time To Live) in the IP packet.
• C.S field in the label is 1bit
• D.The total length of a single MPLS label is 4 bytes (32bits)

Comment: *

Name: *

Email: *

Verification: *