Final CCNA 3 (H)

1. Which value determines if a switch becomes the central point of reference in the spanning tree topology?

xxxlowest bridge ID
highest revision number
lowest numeric IP address
highest numeric MAC address

2. Refer to the exhibit. What is the purpose of the configuration commands that are shown?

to activate port Fa0/10
xxxto make the port a member of VLAN 30
to activate port security on port Fa0/10
to add VLAN 30 to the trunk that is connected to port Fa0/10

Final CCNA 2 (L)

1. What are two functions of a router? (Choose two.)

xxxIt connects multiple IP networks.
It controls the flow of data via the use of Layer 2 addresses.
xxxIt determines the best path to send packets.
It manages the VLAN database.
It increases the size of the broadcast domain

2. When a router boots, what is the default order to locate the Cisco IOS if there is no boot system command?

ROM, TFTP server, flash
xxxflash, TFTP server, ROM
flash, NVRAM, TFTP server
NVRAM, TFTP server, flash

Final CCNA 3 (G)

01. Refer to the exhibit. Hosts B and C attempt to transmit a frame at the same time, but a collision occurs. Which hosts will receive the collision jamming signal?

all hosts that are shown
only hosts B and C
xxxonly hosts A, B, and C
only hosts A, B, C, and D
only hosts A, D, E, and F
only hosts D, E, and F

02. What is an efficient and cost effective way to minimize the frequency and effects of broadcast storms on an Ethernet LAN?

Connect each PC directly to a router port
Use access control lists to filter broadcasts from the network.
xxxDivide the computers into separate VLANs on the existing switches.
Divide the computers into separate workgroups using different physical switches.

Part II: Cisco IOS Tips and Tricks

Timestamping Messages

When the router displays log or debug messages, it defaults to showing you how long the router had been up when the event occurred. Many times, it is more helpful instead to know the date and time when the event occurred. The command for this is service timestamps [log | debug] datetime localtime in global configuration mode. If you use this mode of logging, you should set the clock and date as shown in the next section.

Example:
Router(config)#^Z
Router#
00:39:40: %SYS-5-CONFIG_I: Configured from console by console

Router(config)#service timestamps log datetime localtime
Router(config)#^Z
Mar 2 15:47:04: %SYS-5-CONFIG_I: Configured from console by console

Setting the Clock and Time Zone

You can set the clock on the router with the privileged mode command: clock set . When issuing this command, you must use the actual name of the month, not its number.
You may also want to set the time zone and daylight savings time adjustments. This is done in global configuration mode. The commands are: clock timezone , and clock summer-time recurring.