Telnetlib is a module that implements the Telnet protocol that comes with Python ()

A.

True

B.

False

The mac address of the existing switch is shown in the figure. Which of the following statements is correct ()? (Multiple Choice Questions)

A.

When the switch restarts, the mac address learned by port Eth0/0/2 does not need to be relearned

B.

The data frame with the source mac address of 5489-9885-18a8 and the destination mac address of 5489-989d-1d30 learned from the port is forwarded from the Eth0/0/1 port

C.

The source mac address learned from the port is 5489-9811-0b49. The data frame with the destination mac address 5489-989d-1d30 is forwarded from the Eth0/0/2 port

D.

When the switch restarts, the mac address learned by port Eth0/0/3 needs to be relearned

In the MAC address table of the switch, which of the following entries will not age? ()

A.

Static MAC. Address table entry

B.

C. Port MAC. Address table entry

C.

D. Device MAC. Address table entry

The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? ()

A.

STB's G0/0/3 port

B.

C. G0/0/2 port of STA

C.

D. G0/0/3 port of STA

The configuration information of a certain router is shown in the figure. Which of the
following statements are correct? () (Single-choice question)
#
aaa
authentication-scheme default
authentication-scheme huawei
authentication-mode radius
authorization-scheme default
authorization-scheme huawei

accounting-scheme default
domain default
domain default admin
domain huawei
authentication-scheme huawei
authorization-scheme huawei
local-user huawei password cipher 123456
local-user huawei@huawei password cipher 654321
#

A.

The domain with the domain name huawei does not use the billing plan

B.

Use the username huawei for authentication. The password needs to be 654321

C.

The authentication method adopted for the domain with the domain name huawei is local authentication

D.

The authorization method for the domain with the domain name huawei is local
authorization

In the VRP interface, use the command startup saved-confi guration backup.cfg. Configure the backup.cfg file to be used at the next startup. ()

A.

True

B.

False

By default, the bridge priority of Huawei switches is 32768 ()

A.

True

B.

False

As shown in the broadcast network. 0SPF runs on four routers. And in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)

A.

True

B.

False

The network shown in the figure below assumes that all routers can enable OSPF at the same time. Which router is the DR in this network? () (Single-choice question)

A.

Router B

B.

B. Router D

C.

C. Router A

D.

D. Router C

What is the maximum negotiation rate supported by the IEEE802.11g standard? ()

A.

B. 150Mbps

B.

54Kbps

C.

D. 1200Mbps