________ is actually a multiport repeater. It is normally used to create connections between stations in a physical star topology

________ is actually a multiport repeater. It  is normally used to create connections  between stations in a physical star topology
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1 Answer

Answer :

An active hub
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Related questions

________ is actually a multiport repeater. It is normally usedto createconnections between stations in a physical star topology. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Description : ________ is actually a multiport repeater. It is normally usedto createconnections between stations in a physical star topology. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : An activehub

In a star-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is the collision point.

Description : In a star-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is the collision point.

Last Answer : a passive hub

As light is coupled in a multiport deflective device, the power is reduced by:

Description : As light is coupled in a multiport deflective device, the power is reduced by:

Last Answer : 0.5 dB

A repeater is a connecting device that operates in the _______ layer of the Internet model.

Description : A repeater is a connecting device that operates in the _______ layer of the Internet model.

Last Answer : physical

The signal from a satellite is normally aimed at a specific area called the ________

Description : The signal from a satellite is normally aimed at a specific area called the ________

Last Answer : footprint

A ________ is normally a computer that operates in all five layers of the Internet model or seven layers of OSI model.

Description : A ________ is normally a computer that operates in all five layers of the Internet model or seven layers of OSI model.

Last Answer : gateway

LEO satellites are normally below an altitude of ________ km

Description : LEO satellites are normally below an altitude of ________ km

Last Answer : 2000

Fastest LAN topology

Description : Fastest LAN topology

Last Answer : bus

The OSI layer that provides the control functions necessary to establish, manage and terminated the connections as required to satisfy the user reques

Description : The OSI layer that provides the control functions necessary to establish, manage and terminated the connections as required to satisfy the user reques

Last Answer : Session layer

In a ______ handoff, a mobile station can communicate with two base stations at the same time

Description : In a ______ handoff, a mobile station can communicate with two base stations at the same time

Last Answer : . soft

In ring topology, repeater works in 3 modes: _____, _____ and ______: a) Read, Transmit, By Pass b) Listen ,Transmit, By Pass c) Store, Spread, By Pass d) None of These

Description : In ring topology, repeater works in 3 modes: _____, _____ and ______: a) Read, Transmit, By Pass b) Listen ,Transmit, By Pass c) Store, Spread, By Pass d) None of These

Last Answer : b) Listen ,Transmit, By Pass

________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation.

Description : ________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation.

Last Answer : syntax

Any energy above the ground state is called ________

Description : Any energy above the ground state is called ________

Last Answer : excited state

A ________ is a set of rules that governs data communication

Description : A ________ is a set of rules that governs data communication

Last Answer : protocol

SONET sends ________ frames per second

Description : SONET sends ________ frames per second

Last Answer : 8000

A ________ bridge can forward and filter frames and automatically build its forwarding table

Description : A ________ bridge can forward and filter frames and automatically build its forwarding table

Last Answer : transparent

In the ________ traffic model, the rate of the data flow changes in time, with the changes smooth instead of sudden and sharp.

Description : In the ________ traffic model, the rate of the data flow changes in time, with the changes smooth instead of sudden and sharp.

Last Answer : variable bit rate

A GEO is at the ________ orbit and revolves in phase with Earth.

Description : A GEO is at the ________ orbit and revolves in phase with Earth.

Last Answer : equatorial

The ________ is a function of three values: average data rate, peak data rate, and maximum burst size.

Description : The ________ is a function of three values: average data rate, peak data rate, and maximum burst size.

Last Answer : Effective bandwidth

One of the responsibilities of the transport layer protocol is to create a ______ communication.

Description : One of the responsibilities of the transport layer protocol is to create a ______ communication.

Last Answer : process to process

A _______ is a connecting device that operates in the physical and data link layers of the Internet model.

Description : A _______ is a connecting device that operates in the physical and data link layers of the Internet model.

Last Answer : bridge

IEEE has defined the specifications for a wireless LAN, called _______, which covers the physical and data link layers.

Description : IEEE has defined the specifications for a wireless LAN, called _______, which covers the physical and data link layers.

Last Answer : . IEEE 802.11

____ is a dynamic mapping protocol in which a physical address is found for a given logical address

Description : ____ is a dynamic mapping protocol in which a physical address is found for a given logical address

Last Answer : ARP

Why is it convenient to use switches to create Star Topology ?

Description : Why is it convenient to use switches to create Star Topology ?

Last Answer : Answer : It is convenient to use a switch to create a star topology - the switch only sends the signal to the target computer after receiving the transmitted signal. It also amplifies ... result, the use of switches with connected devices through Star Topology will make the organization stronger.

A ________is a device in which the stations are completely unaware of its existence. A) passive hub B) repeater C) simple bridge D) transparent bridge

Description : A ________is a device in which the stations are completely unaware of its existence. A) passive hub B) repeater C) simple bridge D) transparent bridge

Last Answer : transparent bridge

FDDI used which type of physical topology? A) Bus B) Ring C) Star D) Tree

Description : FDDI used which type of physical topology? A) Bus B) Ring C) Star D) Tree

Last Answer : B) Ring

FDDI used which type of physical topology? A) Bus B) Ring C) Star D) Tree

Description : FDDI used which type of physical topology? A) Bus B) Ring C) Star D) Tree

Last Answer : A) Bus

In the ring topology what happens if one ofthe stations is unplugged?

Description : In the ring topology what happens if one ofthe stations is unplugged?

Last Answer : Need answer

In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Description : In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : A passivehub

A star connected intermediate exchange is known as a (A) Repeater exchange (B) Hub exchange (C) Private branch exchange (D) Tandem exchange

Description : A star connected intermediate exchange is known as a (A) Repeater exchange (B) Hub exchange (C) Private branch exchange (D) Tandem exchange

Last Answer : (B) Hub exchange

A ________ is a repeater. A) regenerator B) ADM C) STS multiplexer/demultiplexer D) none of the above

Description : A ________ is a repeater. A) regenerator B) ADM C) STS multiplexer/demultiplexer D) none of the above

Last Answer : STS multiplexer/demultiplexer

Question regarding washers/o-rings/teflon shaft seals on a multiport valve? (details inside)

Description : Question regarding washers/o-rings/teflon shaft seals on a multiport valve? (details inside)

Last Answer : With what I know of automatic transmission repair, I’ll say the Teflon seal goes on first, then the O-ring. The Teflon seal it there to protect the O-ring from excessive wear that could be caused by it’s contact with the spring washer.

As light is coupled in a multiport deflective device, the power is reduced by ∙ A. 1.5 dB ∙ B. 0.1 dB ∙ C. 0.5 dB ∙ D. 0.001 dB

Description : As light is coupled in a multiport deflective device, the power is reduced by ∙ A. 1.5 dB ∙ B. 0.1 dB ∙ C. 0.5 dB ∙ D. 0.001 dB

Last Answer : C. 0.5 dB

The magnetic field of an antenna is perpendicular to the earth. The antenna’s polarization ___

Description : The magnetic field of an antenna is perpendicular to the earth. The antenna’s polarization ___

Last Answer : is horizontal

It is the ratio of the power density radiated in a particular direction to the power density radiated to the same point by a reference antenna, assuming both antennas are radiating the same amount of power

Description : It is the ratio of the power density radiated in a particular direction to the power density radiated to the same point by a reference antenna, assuming both antennas are radiating the same amount of power

Last Answer : directive gain

The property of interchangeability for the transmitting and receiving operations is known as ____

Description : The property of interchangeability for the transmitting and receiving operations is known as ____

Last Answer : reciprocity

The fields surrounding the antenna do not collapse their energy back into the antenna but rather radiate it out in space

Description : The fields surrounding the antenna do not collapse their energy back into the antenna but rather radiate it out in space

Last Answer : radiation field

It is the ratio of the radiated to the reflected energy:

Description : It is the ratio of the radiated to the reflected energy:

Last Answer : Radiation efficiency

It is the resistance that, if it replaced the antenna, would dissipate exactly the same amount of power that the antenna radiates

Description : It is the resistance that, if it replaced the antenna, would dissipate exactly the same amount of power that the antenna radiates

Last Answer : . Radiation resistance

Plots of field strength or power density with respect to the value at a reference point.

Description : Plots of field strength or power density with respect to the value at a reference point.

Last Answer : relative radiation pattern

The radiation pattern plotted in terms of electric field strength or power density

Description : The radiation pattern plotted in terms of electric field strength or power density

Last Answer : absolute radiation pattern

The line bisecting the major lobe, or pointing from the center of the antenna in the direction of maximum radiation is called _____

Description : The line bisecting the major lobe, or pointing from the center of the antenna in the direction of maximum radiation is called _____

Last Answer : line of shoot

A special type of transmission line that consist of conducting metallic tube through which high frequency electromagnetic energy is propagated

Description : A special type of transmission line that consist of conducting metallic tube through which high frequency electromagnetic energy is propagated

Last Answer : waveguide

If energy is applied at the geometrical center of antenna, the antenna is said to be ___

Description : If energy is applied at the geometrical center of antenna, the antenna is said to be ___

Last Answer : center-fed

The radiation pattern of collinear and a broadside antenna is __

Description : The radiation pattern of collinear and a broadside antenna is __

Last Answer : bidirectional

Hertz antenna are predominantly used with frequencies above

Description : Hertz antenna are predominantly used with frequencies above

Last Answer : 2MHz

The point on the antenna where the transmission line is connected is called _____

Description : The point on the antenna where the transmission line is connected is called _____

Last Answer : feedpoint

The discone antenna is

Description : The discone antenna is

Last Answer : useful as a UHF receiving antenna

It is the same with directive gain except that the total power fed to the antenna is used and the antenna efficiency is taken into account.

Description : It is the same with directive gain except that the total power fed to the antenna is used and the antenna efficiency is taken into account.

Last Answer : power gain

____ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.

Description : ____ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.

Last Answer : UDP