ENetwork Chapter 8 - CCNA 1

1. Which type of cable run is most often associated with fiber-optic cable?

backbone 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

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?
• Options three is right answer (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