1. Match the colors to the numbers that represent the wiring pinouts for 568B patch cables.
2. Place each pin on the left onto the correct pin on the right to properly create a RJ-45 connector for a router console cable.
3. What kind of connection is represented in the graphic?
- console connection
- Ethernet connection
- ISDN connection
- leased line connection
4. What is the purpose of encoding?
- Identification of start and stop bits in a frame.
- Denotes the physical layers connectors of computers in relation to the way they connect to the network media.
- Controls the way frames are placed on the media at the Data link layer.
- Represents the data bits by using different voltages, light patterns or electromagnetic waves as they are placed onto the physical media.
5. What best describes the purpose of the Physical Layer?
- Ensures reliable transmission of data across a physical link.
- Determines connectivity and path selection between two end systems.
- Establishes the physical addressing, network topology and media access.
- Defines the functional specifications for link between end systems and the electrical, optical, and radio signals.
6. Through what process does UTP cable help to avoid crosstalk?
- shielding of cable
- twisting of pairs
- grounding the end points
- cladding in cable
7. Refer to the exhibit. The network in the exhibit is wired with Cat 5e cable and Workstation “C” is unable to communicate with the network. What Physical Layer problem would cause the problem of Workstation “C” not connecting to the network?
- wrong operating system
- incorrect IP address
- cable length
- incorrect prefix
- switch type
8. What are the advantages of using fiber optic cable over copper cable? (Choose three.)
- copper is more expensive
- immunity to electromagnetic interference
- careful cable handling
- longer maximum cable length
- efficient electrical current transfer
- greater bandwidth potential
Explanation: Unlike copper wires, fiber-optic cable can transmit signals with less attenuation and is immune to EMI and RFI. Fiber-optic cables can also be operated at much greater lengths than copper media and with higher bandwidth.
9. What cable type would be used to connect a computer directly to another computer?
- Straight-through
- Rollover
- Crossover
- Console
10. Refer to the exhibit. What is the purpose of cladding in fiber optic cables?
- Cable grounding
- noise cancellation
- prevents light loss
- EMI protection