Which of the following OSCan PF protocol packets ensure the reliability of LSA update? ()

A.

LSACK

B.

DD

C.

LSU

D.

LSR

Trunk ports can allow multiple VLANs to pass, including VLAN4096. ()

A.

True

B.

False

The network administrator has captured a data frame on the network, and its destination
MAC address is 01-00-5E-A0-B1-C3. The correct statement about the MAC. address is ().

A.

It is a multicast MAC. address

B.

It is a unicast MAC. address

C.

It is a broadcast MAC. address

D.

It is an illegal MAC. address

In order to join the wireless network $TA. The wireless network information needs to be
obtained first. Which of the following messages is used by the STA to actively obtain the
SSID information? ()

A.

Probe

B.

Join

C.

Discovery

D.

Beacon

On the VRP operating platform, what command is used to display the current interface
configuration in the interface view? ()

A.

display users

B.

display version

C.

display this

D.

display ip interfacebrief

As shown in the picture. About OSPF topology and configuration. Which of the following
statements is correct? () (Single-choice question)

A.

R1 and R2 can establish a stable OSPF neighbor relationship

B.

R1 is more likely to become DR than R2, because its interface DR priority value is
smaller

C.

As long as the interface network type of R1 is restored to the default broadcast type, R1
and R2 can establish a stable neighbor relationship

D.

As long as the interface network type of R1 is restored to the default broadcast type, and
the hello time is adjusted to 10s, R1 and R2 can establish a stable neighbor relationship

When the lease period reaches what percentage does the DHCP client send the lease
renewal message for the first time? ()

A.

0.5

B.

0.875

C.

0.25

Which of the following descriptions of wireless devices is correct? ()

A.

FIT AP-Generally complete user access, authentication, service forwarding and other
functions independently

B.

The wireless controller AC is generally located at the convergence layer of the entire
network, providing high-speed, safe and reliable VLAN services

C.

FAT AP generally works with wireless controller

The VlanIF IP addresses of the same switch cannot be the same. ()

A.

True

B.

False

All four switches run STP, and various parameters adopt default values. If the G0/0/2 port
of switch C is blocked and the configuration BPDU cannot be sent through this port, how
long will the blocked port in the network enter the forwarding state ()

A.

About 50 seconds

B.

About 30 seconds

C.

About 15 seconds