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Cisco Certified Network Associate(CCNA) Sample Questions:

1. Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.

Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two.)

A) The port security configuration needs to be saved to NVRAM before it can become active.
B) Port security needs to be configured to allow only one learned MAC address.
C) Port security needs to be enabled on the interface.
D) Port security interface counters need to be cleared before using the show command.
E) Configure port security to shut down the interface in the event of a violation.
F) Enable port security globally.

2. The switches shown in the diagram, Core and Core2, are both Catalyst 2950s.

The addressing scheme for each company site is as follows:
-Router Ethernet port - 1st usable address -Core - 2nd usable address -Core2 - 3rd usable address
For this network, which of the following commands must be configured on Core2 to allow it to be managed remotely from any subnet on the network? (Choose three.)

A) Core2(config)# ip route 0.0.0.0 0.0.0.0 192.168.1.8
B) Core2(config)# ip default-gateway 192.168.1.9
C) Core2(config)# interface f0/0 Core2(config-if)# ip address 192.168.1.10 255.255.255.248
D) Core2(config)# line vty 0 4 Core2(config-line)# password cisco
E) Core2(config)# interface vlan 1 Core2(config-if)# ip address 192.168.1.11 255.255.255.248
F) Core2(config)# line con 0 Core2(config-line)# password cisco

3. Which items are correct about the routing protocol OSPF? (Choose three.)

A) It allows extensive control of routing updates.
B) It confines network instability to one area of the network.
C) It supports VLSM.
D) It is simpler to configure than RIP v2.
E) It is used to route between autonomous systems.
F) It increases routing overhead on the network.

4. Refer to the topology and router output shown in the exhibit. A technician is troubleshooting host connectivity issues on the switches. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12. Hosts in the Admin VLAN are able to communicate. The port-to-VLAN assignments are identical on the two switches. What could be the problem?

A) The Fa0/1 port is not operational on one of the switches.
B) The link connecting the switches has not been configured as a trunk.
C) At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate.
D) A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw1 2.
E) Port FastEthernet 0/1 needs to be configured as an access link on both switches.

5. Refer to the exhibit. Which mask is correct to use for the WAN link between the routers that will provide connectivity while wasting the least amount of addresses?

A) /23
B) /30
C) /25
D) /24

Solutions: