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You are watching: What is indicated by the term throughput

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What are two reasons for physical layer protocols to use frame encoding techniques? (Choose two.)

to reduce the number of collisions on the mediato distinguish data bits from control bitsto provide better media error correctionto identify where the frame starts and endsto increase the media throughput
Explanation:
An encoding technique converts a stream of data bits in a predefined code that can be recognized by both the transmitter and the receiver. Using predefined patterns helps to differentiate data bits from control bits and provide better media error detection.

What is indicated by the term throughput?

the guaranteed data transfer rate offered by an ISPthe capacity of a particular medium to carry datathe measure of the usable data transferred across the mediathe measure of the bits transferred across the media over a given period of timethe time it takes for a message to get from sender to receiver
Explanation:
Throughput is the measure of the transfer of bits across the media over a given period of time. Throughput is affected by a number of factors such as, EMI and latency, so it rarely matches the specified bandwidth for a network medium. The throughput measurement includes user data bits and other data bits, such as overhead, acknowledging, and encapsulation. The measure of the usable data transferred across the media is called goodput.

A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

EMIcrosstalkRFIsignal attenuationextended length of cabling
Explanation:
EMI and RFI signals can distort and corrupt data signals that are carried by copper media. These distortions usually come from radio waves and electromagnetic devices such as motors and florescent lights. Crosstalk is a disturbance that is caused by adjacent wires bundled too close together with the magnetic field of one wire affecting another. Signal attenuation is caused when an electrical signal begins to deteriorate over the length of a copper cable.

Which characteristic describes crosstalk?

the distortion of the network signal from fluorescent lightingthe distortion of the transmitted messages from signals carried in adjacent wiresthe weakening of the network signal over long cable lengthsthe loss of wireless signal over excessive distance from the access point
Explanation:
EMI and RFI can distort network signals because of interference from fluorescent lights or electric motors. Attenuation results in deterioration of the network signal as it travels along copper cabling. Wireless devices can experience loss of signals because of excessive distances from a access point, but this is not crosstalk. Crosstalk is the disturbance caused by the electric or magnetic fields of the signal carried on an adjacent wire within the same cable.

What technique is used with UTP cable to help protect against signal interference from crosstalk?

twisting the wires together into pairswrapping a foil shield around the wire pairsencasing the cables within a flexible plastic sheathterminating the cable with special grounded connectors
Explanation:
To help prevent the effects of crosstalk, UTP cable wires are twisted together into pairs. Twisting the wires together causes the magnetic fields of each wire to cancel each other out.

Refer to the exhibit. The PC is connected to the console port of the switch. All the other connections are made through FastEthernet links. Which types of UTP cables can be used to connect the devices?


*

CCNA1 Chapter 4 v5.1 001


All three networks use CSMA/CANone of the networks require media access control.Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.

What is contained in the trailer of a data-link frame?

logical addressphysical addressdataerror detection
Explanation:
The trailer in a data-link frame contains error detection information that is pertinent to the frame included in the FCS field. The header contains control information, such as the addressing, while the area that is indicated by the word “data” includes the data, transport layer PDU, and the IP header.

As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame?

The transmitting node inserts start and stop bits into the frame.The transmitting node sends a beacon to notify that a data frame is attached.The receiving node identifies the beginning of a frame by seeing a physical address.The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.
Explanation:
When data travels on the media, it is converted into a stream of 1s and 0s. The framing process inserts into the frame start and stop indicator flags so that the destination can detect the beginning and end of the frame.

What is the function of the CRC value that is found in the FCS field of a frame?

to verify the integrity of the received frameto verify the physical address in the frameto verify the logical address in the frameto compute the checksum header for the data field in the frame
Explanation:
The CRC value in the FCS field of the received frame is compared to the computed CRC value of that frame, in order to verify the integrity of the frame. If the two values do not match, then the frame is discarded.

Fill in the blank.

The term bandwidth indicates the capacity of a medium to carry data and it is typically measured in kilobits per second (kb/s) or megabits per second (Mb/s).

Fill in the blank.

See more: What Causes Friction Between Two Seemingly Smooth Surfaces ?

What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame? LLC

Match the characteristics to the correct type of fiber. (Not all options are used.)


From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to "Online Test" link below.

Version 5.02Version 5.1Version 6.0Online Assessment
Chapter 4 ExamChapter 4 ExamChapter 4 ExamOnline Test
Next Chapter
Chapter 5 ExamChapter 5 ExamChapter 5 ExamOnline Test
Lab Activities
4.2.4.4 Packet Tracer – Connecting a Wired and Wireless LAN

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