Test
Network+ Ch.3
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Preguntas del test (17)
1Identify the type of network cabling shown in the graphic.
- ATwisted pair
- BCoax
- CFiber optic
- ATwisted pair
2Identify the type of network cabling shown in the graphic.
- AUnshielded twisted pair
- BShielded twisted pair
- CCoax
- DFiber optic
- AUnshielded twisted pair
3Which of the following are reasons why a plenum cable is commonly used in air handling spaces and run through firebreaks?
- AIt does not give off poisonous gases when burning.
- BFire cannot travel through the cable because of the insulated metal shield that surrounds the conductors.
- CFire cannot travel through the cable because the jacket is closely bound to the conductors.
- DIt is more durable than using a PVC cable.
- AIt does not give off poisonous gases when burning.
4Select the characteristics of unbounded media.
- AUse a physical medium
- BTransmit both voice and data signals
- CUse electromagnetic energy
- DOperate only within a 10 mile radius
- AUse a physical medium
5At what radio frequency does Bluetooth operate?
- A5 GHz
- B2.4 GHz
- C300 GHz
- D100 GHz
- A5 GHz
6Which form of wireless transmission transmits signals in the 10 KHz to 1 GHz frequency range?
- ARadio
- BInfrared
- CMicrowave
- ARadio
7What statements are true of data signaling in FHSS?
- AConsist of multiple chips transmitted across a different frequency.
- BSent over a single, high-frequency RF transmission band.
- CTransmitted across a single frequency, and later sent over a randomly selected frequency.
- DLess likely to be intercepted, but not significantly less susceptible to noise.
- AConsist of multiple chips transmitted across a different frequency.
8Which forms of wireless media operate only when there are no obstacles in the transmission path?
- AInfrared
- BRadio
- CMicrowave
9Which unbounded media transmission method uses multiple frequencies to reduce interference and the likelihood of eavesdropping?
- AInfrared
- BMicrowave
- CSpread spectrum
- DBroadcast radio
10Choose the statement that defines electrical noise.
- ASolar radiation or man-made sources of data signals.
- BExtraneous signals introduced onto network media.
- CThe reception of transmitted signals from a source.
- DExtraneous signals that enhance the quality of received transmission.
- ASolar radiation or man-made sources of data signals.
11Select the items that are sources of electrical noise.
- AFluorescent lights
- BSolar storms
- CWind storms
- DHVAC equipment
- AFluorescent lights
12True or False? Differential signaling reduces electrical noise by distinguishing between the signals on two different inputs.
- AVerdadero
- BFalso
13What is the process of installing a resistor on the end of a cable to prevent signal reflections called?
- ADraining
- BGrounding
- CTerminating
- DShielding
14You need to connect multiple networks that use the same protocol. Which networking device would best meet your needs?
- ARouter
- BBridge
- CGateway
- DSwitch
15Which of these network devices is a common connecting point for various nodes or segments?
- AHub
- BRouter
- CGateway
- DSwitch
16True or False? A gateway subdivides a LAN into segments.
- AVerdadero
- BFalso
17Which statements are valid for a gateway?
- AIt can connect networks with dissimilar protocols.
- BIt can be implemented in a router.
- CIt can be implemented only as a computer program.
- DIt can be implemented as hardware or software.
- AIt can connect networks with dissimilar protocols.
Información
- Descripción
- Test sobre Network+ Ch.3, creado por jdrumr el 24/10/2014.
- Autor
- jdrumr
- Idioma
- English
- Visitas
- 118
- Valoración
- Aún sin valoraciones Valora este test