A company has 50 private P addresses, and the administrator uses NAT technology to
connect the company's network to the public network, but the company has only one public
network address and is not fixed. Which of the following NAT conversion methods meets
the requirements? ()

A.

easy-ip

B.

NAPT

C.

Static NAT

D.

BasiC.NAT

The following statement about the TTL field in the IP packet header is correct. ()

A.

TTL defines the time interval at which the source host can send data packets

B.

TTL defines the number of packets that the source host can send

C.

Each time a P packet passes through a router, its TTL value will be reduced by 1

D.

Each time an IP packet passes through a router, its TTL value is increased by 1

The CAPWAP protocol stipulates the communication standard between AC. and Ap. Which
of the following statements about the CAPWAP protocol is correct? ()

A.

CAPWAP is an application layer protocol based on TCP transmission

B.

In order to establish a CAPWAP tunnel, the FIT Ap can only discover the AC through
broadcast messages

C.

In order to reduce the burden on the AP, CAPWAP uses a tunnel to simultaneously
transmit control messages and data messages

D.

The AP can encapsulate the user's data message in CAPWAP and hand it over to the
AC.

Telnet is based on TCP protocol ()

A.

True

B.

False

Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().

A.

Neighbor

B.

Network Mask

C.

HelloInterval

D.

Sysname

The IPv6 address 2001: ABEF:2240E:FFE2:BCC0:CD0:DDBE:8D58 cannot be
abbreviated. ()

A.

True

B.

False

The Backup port in RSTP can replace the failed root port ()

A.

True

B.

False

In what state does the OSPF protocol determine the master-slave relationship of DD.
packets? ()

A.

Full

B.

way

C.

Exchange

Take effect immediately after the Router ID of the OSPF process is modified ()

A.

True

B.

False

An existing switch is connected to a designated port through a port, but the port does not
forward any packets, but can monitor network changes by receiving BPDUs, then the role
of the port should be ().

A.

Alternate port

B.

Disable port

C.

Root port