OSThe I reference model from high-level to bottom-level is ()

A.

Application layer, transport layer, network layer, data link layer, physical layer

B.

Application layer Session layer Presentation layer Transport layer Network layer Data
link layer Physical layer

C.

Application layer Presentation layer Session layer Network layer Transport layer Data
link layer Physical layer

D.

Application layer Presentation layer Session layer Transport layer Network layer Data
link layer Physical layer

The router running the OSPF protocol reaches the FULL state first, and then synchronizes
the LSDB. ()

A.

True

B.

False

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

A.

AC

B.

STA

C.

AP

As shown in the figure, if the command ping 10.1.1.2 is executed on R1, the data frame of VLAN 10 received from LSW2 by LSW1 is tagged. ()(True or False)

A.

True

B.

False

The Huawei tracert diagnostic attack is used to track the forwarding path of data ()

A.

True

B.

False

The network shown in the figure below. All routers run OSPF. The link cost value is shown
in the figure. What is the cost value of the route entry to the network 10.0.0.0/8 in the RTA
routing table? () (Single-choice question)

A.

100

B.

70

C.

20

D.

60

How many more bytes are the packets using MPLS label double-layer nesting technology
than the original IP packets ()

A.

8

B.

4

C.

16

UDP has a sliding window mechanism to control the speed of data transmission

A.

True

B.

False

Switch stacking supports more than two devices, and multiple switches can be grouped
into a logical device through stacking. ()

A.

True

B.

False

The MAC address table of existing switches is shown in the figure. Which of the following
statements are correct? () (Single-choice question)

A.

Received a data frame with a source MAC address of 5489-9811-0b49 and a
destination MAC address of 5489-989d1d30 from the port. Forwarded from the Eth0/0/2
porthttps://selfexamtraining.com/uploadimages/Q61.png

B.

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

C.

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

D.

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