1
Which type of cable run is most often associated with fiber-optic cable?
Xbackbone cable
horizontal cable
patch cable
work area cable
2
In most business LANs, which connector is used with twisted-pair networking cable?
**RJ-45
3
When is a straight-through cable used in a network?
**when connecting a host to a switch
4
With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
**the magnetic field around the adjacent pairs of wire
5
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
**Physical
6
An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
**OTDR
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.)
**coax
**Cat6 UTP
8
What is a possible effect of improperly applying a connector to a network cable?
**Data transmitted through that cable may experience signal loss.
9 What are three measures of data transfer? (Choose three.)
goodput
**frequency
**throughput
**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?
**crossover cable
11
In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
**fiber
12
Which fiber connector supports full duplex Ethernet?
kolmas
13
Which method of signal transmission uses radio waves to carry signals?
**wireless
14
Which characteristics describe fiber optic cable? (Choose two.)
**It is not affected by EMI or RFI.
**It is the most expensive type of LAN cabling.
15
Which of the following is a characteristic of single-mode fiber-optic cable?
**generally uses LEDs as the light source
16
What is considered a benefit of wireless as a media choice?
**more host mobility
17
What characteristic of UTP cable helps reduce the effects of interference?
**the twisting of the wires in the cable
18
What is a primary role of the Physical layer in transmitting data on the network?
**create the signals that represent the bits in each frame on to the media
