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Cisco Certified Network Associate(CCNA) Sample Questions:

1. A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?

A) This is a 10Mb/s switch port.
B) This is a 100Mb/s switch port.
C) This is a port on a network interface card in a PC.
D) This is an Ethernet port operating at full duplex.
E) This is an Ethernet port operating at half duplex.

2. Why is flash memory erased prior to upgrading the IOS image from the TFTP server?

A) Flash memory on Cisco routers can contain only a single IOS image.
B) Erasing current flash content is requested during the copy dialog.
C) The router cannot verify that the Cisco IOS image currently in flash is valid.
D) In order for the router to use the new image as the default, it must be the only IOS image in flash.

3. Which command enables IPv6 forwarding on a cisco router?

A) ipv6 host
B) ipv6 unicast-routing
C) ipv6 local
D) ipv6 neighbor

4. Refer to the exhibit. Assume that all router interfaces are operational and correctly configured. In addition, assume that OSPF has been correctly configured on router R2. How will the default route configured on R1 affect the operation of R2?

A) Any packet destined for a network that is not directly connected to router R1 will be dropped.
B) Any packet destined for a network that is not referenced in the routing table of router R2 will be directed to R1. R1 will then send that packet back to R2 and a routing loop will occur.
C) The networks directly connected to router R2 will not be able to communicate with the 172.16.100.0, 172.16.100.128, and 172.16.100.64 subnetworks.
D) Any packet destined for a network that is not directly connected to router R2 will be dropped immediately because of the lack of a gateway on R1.
E) Any packet destined for a network that is not directly connected to router R2 will be dropped immediately.

5. The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?

A) Change the MAC address of the switch.
B) Increase the VTP revision number for the domain.
C) Lower the bridge priority number.
D) Assign the switch an IP address with the lowest value.
E) Lower the root path cost on the switch ports.

Solutions: