Selasa, 15 Desember 2009

CCNA 3.1 Semester 1 Final Exam Result #1-5

1 Which devices segment collision domains? (Choose two.)
transceiver
* router
* switch
hub
media

This item references content from the following areas:
CCNA 1 Networking Basics
• 8.2.3 Segmentation

2.
Refer to the exhibit. How many collision domains are present in the topology?
3
5
6
* 7
8
9

This item references content from the following areas:
CCNA 1 Networking Basics
• 8.2.2 Collision domains

3.
Refer to the exhibit. An instructor in the network class has given the students the network diagram and asks the students to select the appropriate network devices. The goals are to provide a collision-free LAN environment and to provide Internet connectivity. What is the correct design?

Replace Box 1 with a hub and Box 2 with a router.
Replace Box 1 with a router and Box 2 with a bridge.
* Replace Box 1 with a Layer 2 switch and Box 2 with a router.
Replace Box 1 with a router and Box 2 with a Layer 2 switch.
Replace Box 1 with a bridge and Box 2 with a Layer 2 switch.

This item references content from the following areas:
CCNA 1 Networking Basics
• 10.2.2 Routing versus switching

4.
Refer to the exhibit. A network administrator attempts to increase the available bandwidth for workstation A by setting the NIC to full-duplex mode. After the configuration is changed, there are increased collisions and errors occurring. Why is this occurring in the network?

* The NIC is no longer detecting collisions.
The switch will not support full-duplex mode.
The hub will be continually producing a jam signal.
The cabling will not support bidirectional transmissions.

This item references content from the following areas:
CCNA 1 Networking Basics
• 6.2.10 Link establishment and full and half duplex

5.
Refer to the exhibit. A network administrator is testing a connectivity issue in the network. The administrator discovers that host A cannot communicate with host B, host C, or RouterA. A ping command on host A to 127.0.0.1 succeeds. The NIC link indicator on host A is illuminated. Temporarily, the administrator removes the cable from host A and uses the LAN cable from host B to connect from host A to port 1 on the switch. While using the substitute cable, host A can communicate with host C and RouterA. At which layer of the OSI model was the problem occurring?

session
transport
network
data link
* physical

This item references content from the following areas:
CCNA 1 Networking Basics
• 2.3.4 OSI layers