CCNA 2 v7 Practice Test (Pt. 3)

Match the followingMatch the link state to the interface and protocol status. (Not all options are used.)

• Administratively down

• Layer 2 problem

• up/up

• disabled

• up/down

• Layer 1 problem

• down/down

• Operational

Refer to the exhibit. Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?​

• to Fa0/1, Fa0/2, and Fa0/3 only

• to Fa0/1, Fa0/2, Fa0/3, and Fa0/4

• to Fa0/1 only​

• to Fa0/1, Fa0/2, and Fa0/4 only​

• to Fa0/1 and Fa0/2 only

What action takes place when the source MAC address of a frame entering a switch is not in the MAC address table?

• The switch adds a MAC address table entry for the destination MAC address and the egress port.

• The switch adds the MAC address and incoming port number to the table.

• The switch replaces the old entry and uses the more current port.

• The switch updates the refresh timer for the entry.

Employees are unable to connect to servers on one of the internal networks. What should be done or checked?

• Use the “show ip interface brief” command to see if an interface is down.

• Verify that there is not a default route in any of the edge router routing tables.

• Create static routes to all internal networks and a default route to the internet.

• Check the statistics on the default route for oversaturation.

What is the effect of entering the ip dhcp snooping configuration command on a switch?

• It enables DHCP snooping globally on a switch.

• It enables PortFast globally on a switch.

• It disables DTP negotiations on trunking ports.

• It manually enables a trunk link.

An administrator notices that large numbers of packets are being dropped on one of the branch routers. What should be done or checked?

• Create static routes to all internal networks and a default route to the internet.

• Create extra static routes to the same location with an AD of 1.

• Check the statistics on the default route for oversaturation.

• Check the routing table for a missing static route.

What are two switch characteristics that could help alleviate network congestion? (Choose two.)

• fast internal switching

• large frame buffers

• store-and-forward switching

• low port density

• frame check sequence (FCS) check

What is a result of connecting two or more switches together?

• The number of broadcast domains is increased.

• The size of the broadcast domain is increased.

• The number of collision domains is reduced.

• The size of the collision domain is increased.

Answer explanation

When two or more switches are connected together, the size of the broadcast domain is increased and so is the number of collision domains. The number of broadcast domains is increased only when routers are added.

Branch users were able to access a site in the morning but have had no connectivity with the site since lunch time. What should be done or checked?

• Verify that the static route to the server is present in the routing table.

• Use the “show ip interface brief” command to see if an interface is down.

• Check the configuration on the floating static route and adjust the AD.

• Create a floating static route to that network.

What is the effect of entering the switchport port-security configuration command on a switch?

• It dynamically learns the L2 address and copies it to the running configuration.

• It enables port security on an interface.

• It enables port security globally on the switch.

• It restricts the number of discovery messages, per second, to be received on the interface.