1. Which type of cable run is most often associated with fiber-optic cable?
- xxbackbone cable
- horizontal cable
- patch cable
- work area cable
2. In most business LANs, which connector is used with twisted-pair networking cable?
- BNC
- RJ-11
- xxRJ-45
- Type F
3. When is a straight-through cable used in a network?
- when connecting a router through the console port
- when connecting one switch to another switch
- xxwhen connecting a host to a switch
- when connecting a router to another router
4. With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
- xxthe magnetic field around the adjacent pairs of wire
- the use of braided wire to shield the adjacent wire pairs
- the reflection of the electrical wave back from the far end of the cable
- the collision caused by two nodes trying to use the media simultaneously
5. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
- Presentation
- Transport
- Data Link
- xxPhysical
6. An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
- light injector
- xxOTDR
- TDR
- multimeter
7. XYZ Company is installing new cable runs on their data network. What two types of cable would most commonly be used for new runs? (Choose two.)
- xxcoax
- Cat4 UTP
- Cat5 UTP
- xxCat6 UTP
- STP
8. What is a possible effect of improperly applying a connector to a network cable?
- Data will be forwarded to the wrong node.
- xxData transmitted through that cable may experience signal loss.
- An improper signaling method will be implemented for data transmitted on that cable.
- The encoding method for data sent on that cable will change to compensate for the improper connection.
9. What are three measures of data transfer? (Choose three.)
- xxgoodput
- frequency
- amplitude
- xxthroughput
- crosstalk
- bandwidth
10. Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
- coax cable
- rollover cable
- xxcrossover cable
- straight-through cable
11. In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
- coax
- xxfiber
- Cat5e UTP
- Cat6 UTP
- STP
12. Which fiber connector supports full duplex Ethernet?
13. Which method of signal transmission uses radio waves to carry signals?
- electrical
- optical
- xxwireless
- acoustic
14. Which characteristics describe fiber optic cable? (Choose two.)
- xxIt is not affected by EMI or RFI.
- Each pair of cables is wrapped in metallic foil.
- It combines the technique of cancellation, shielding and twisting to protect data.
- It has a maximum speed of 100 Mbps.
- xxIt is the most expensive type of LAN cabling.
15. Which of the following is a characteristic of single-mode fiber-optic cable?
- xxgenerally uses LEDs as the light source
- relatively larger core with multiple light paths
- less expensive than multimode
- generally uses lasers as the light source
16. What is considered a benefit of wireless as a media choice?
- xxmore host mobility
- lower security risks
- reduced susceptibility to interference
- less impact of the surroundings on the effective coverage area
17. What characteristic of UTP cable helps reduce the effects of interference?
- the metal braiding in the shielding
- the reflective cladding around core
- xxthe twisting of the wires in the cable
- the insulating material in the outer jacket
18. What is a primary role of the Physical layer in transmitting data on the network?
- xxcreate the signals that represent the bits in each frame on to the media
- provide physical addressing to the devices
- determine the path packets take through the network
- control data access to the media
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