H12-811 Online Practice Questions and Answers

Which of the following cannot be the length of the IPv4 packet header? ()

A. 32B

B. 60B

C. 20B

D. 64B

The DHCP request message is sent by broadcast

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

Which of the following descriptions about firewalls is wrong? ()

A. Firewall can realize user identity authentication

B. Firewall can realize access control between different networks

C. The firewall can isolate the network of unreachable security level

D. The firewall cannot implement network address translation

The following two configuration commands can implement router RIA. The route to the same destination 10.1.1.1.0 is active and standby:

A. True

B. Mistake

The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge IDs will be the root bridge? ()

A. 409600-01-02-03-04-DD

B. 3276800-01-02-03-04-AA

C. 3276800-01-02-03-04-CC

D. 3276800-01-02-03-04-BB

In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions) A. The network between RTA and SWC is the same conflict domain

B. The network between SWA and SWB is the same broadcast domain

C. The network between SWA and SWC is the same conflict domain

D. The network between SWA and SWC is the same broadcast domain

As shown in the figure, after the two routers are configured with 0SPF, the administrator configures the command on RTA. Is the following description correct? () (Multiple Choice Questions)

A. RTA will continue to receive, analyze and process OSPF packets sent by RTB

B. The neighbor relationship between the two routers will be down

C. The neighbor relationship between the two routers will not be affected

D. RTA will no longer send OSPF packets

Which of the following are basic parameters for configuring a static route? (Choose three.)

A. Destination network

B. Next-hop IP address

C. Outbound interface

D. MAC address of the outbound interface

For STR the default root path cost of the root bridge is 0.

A. True

B. False