Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the
following abbreviations are correct? ()

A.

2031:0:720C:-9E0:839A:130B

B.

2031:0:720C:0:0:9E0:839A:130B

C.

2031:720C:9E0:839A:130B

Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()

A.

802.11g

B.

802.11ax

C.

802.11n

In the wLAN network architecture, terminal devices that support the 802.11 standard are called? ()

A.

Client

B.

AC

C.

STA

D.

AP

What is the length of the basic IPv6 header in bytes? ()

A.

40

B.

64

C.

48

D.

32

The following description about the specified port of the spanning tree is correct ()

A.

The designated port can forward configuration BPDU packets to the network segment connected to it

B.

The port on the root switch must be a designated port

C.

The port on the root switch must not be a designated port

Network as shown in the picture. The administrator hopes that all hosts cannot access the Web service (the port number is 80). Other services can be accessed normally. In the interface configuration of G0/0/1, which ACL rule needs to be bound to trattie-frilter outbound?

A.

rule 5 permit ip
ARule 10 deny top destination-port eq ww#

B.

acl number 3003
Rule 5 permit ip
Rule 10 deny udp destination-port eq ww#

C.

acl number 3001
Rule 5 deny udp destination-port eq ww
Rule 10 permit ip#

D.

acl number 3000
Rule 5 deny tcp destination-port eq www Rule 10 permit ip
#

If the network address of a network is 192.168.1.0, then its broadcast address must be
192.168.1.255. ()

A.

True

B.

False

STA. Before associating to AP, it needs to obtain SSID through some message exchange.
What are these messages? ()

A.

Discovery

B.

Beacon

C.

Probe

D.

ResponseProbe Request

Which of the following IPv4 addresses can be used by a host to directly access the
Internet? ()

A.

192.168.1.1/24

B.

172.32.1.1/24

C.

172.16.255.254/24

D.

10.255.255.254/24

Apply the ACL configured in the figure in Telnet. Only the device with the IP address of172.16.105.2 is allowed to log in remotely: ()#acl number 2000 rule 5 permit source
172.16.105.20#

A.

True

B.

False