DNS is used for domain name resolution

A.

True

B.

False

By default, the port cost calculated by STP has a certain relationship with the port
bandwidth, that is, the larger the bandwidth, the higher the cost ()

A.

Big

B.

Unanimous

C.

uncertain

D.

small

A company applies for a C. address segment, which needs to be evenly distributed to 8
subsidiaries. The largest subsidiary has 14 computers. Different subsidiaries must be in
different network segments. The subnet mask should be designed as ( )

A.

255.255.255.240

B.

255.255.255.128

C.

255.255.255.192

D.

255.255.255.0

The following is the statement about the election of active ports in link aggregation LACP
mode. the correct one is? ()

A.

The interface priority is compared first, and the better one cannot be judged to continue
to compare the interface number, the smaller the better.

B.

Only compare interface priority

C.

Compare device priority

D.

Only compare interface numbers

Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other
information. ()

A.

True

B.

False

For switches running the STP protocol, the port needs to wait for the forwarding delay in the Learning state to transform into the Forwarding state. ()

A.

True

B.

False

As shown in the figure, two switches use the default parameters to run STP root primary;
Switch B uses the configuration command STP priority 0. Then which port will be blocked?
() (Single-choice question)

A.

G0/0/2 of switch A

B.

G0/0/1 of switch A

C.

G0/0/1 of switch B

On Huawei ARG3 routers, the -i parameter of the Ping command in VRP is used to set ().

A.

Destination IP address for receiving Echo Reply reply

B.

The source IP address of the Echo Request message

C.

Interface for receiving Echo Reply messages

D.

Interface for sending Echo Request messages

Wireless access controller (AC, Access Cntroller) As a unified management and control
device in the FIT AP architecture, the following description of the role of AC. is wrong ()

A.

No matter when the data is forwarded, the user's data message will be forwarded by
AC.

B.

User access control

C.

User access authentication

D.

AP configuration delivery

What kind of message does the 0SPF protocol use to request the locally missing LSA? ()

A.

LSACK

B.

LSU

C.

HELL0

D.

LSR