module 4-7 exam

which is a multicast mac address

01-00-5e-00-00-03

which types of utp cables can be used to connect the devices

1 rollover,2-straight-through, 3-crossover

when the store and forward method of switching is in use what part of the ethernet frame is used to perform an error check

Crc in the trailer

which port does switch0 use to send frames to the host with Ipv4 address 10.1.1.5

Fa0/11

what type of communication rule would best describe csma/cd

a. access method

what is a primary role of the physical layer in transmitting data on the network

a. create the signals that represent the bits in each frame on the media

what two factors could interfere with the communication carried over UTP cables

a. crosstalk e. electromagnetic interference

which statement describes an extended star topology

a. end devices connect to a central intermediate device which turn connects to other central intermediate devices

what is contained in the trailer of a data-link frame

a. error detection

what are three ways that media access control is used in networking

a. ethernet utilizes csma/cd b. Media access control provides placement of data frames onto the media e. data link protocols define the rules for access to different media.

what are two examples of the cut through switching method

a. fast-forward switching d. fragment free switching

which three basic parts are common to all frame types supported by the data link layer

a. header d. data e. trailer

what are two characteristiics of fiber optic cable

a. it is not affected by EMI or RFI e. It is more expensive than UTP cabling is.

which three factors could influence the differences in throughput TERM

a. the amount of traffic that is currently crossing the network c. the type of traffic that is crossing the network d. the latency that is created by the number of network devices that the data is crossing.

what causes crosstalk within cable pairs

a. the magnetic field around the adjacent pairs of wire.

what is the function of the crc value that is found in the FCS of a frame

a. to verify the integrity of the received frame

which three statements are correct about the final result of the connection

a.the link between the switches will work at the fastest speed that is supported by both switches. b. the link between switches will work as full-duplex d. the auto-mdix feature will configure the interfaces eliminating the need for a crossover cable.

what two functiojns are performed at the llc sublayer of the osi data link layer

adds layer 2 control places information

what osi physical layer term describes the physical medium for microwave transmissions

air

what type of cabling is shown

b. UTP

which advantage does the store-and-forward switching method have compared with the cut-through switching method

b. frame error checking

Which topology provides high availability and connects some but not all remote sites

b. partial mesh

what three items are contained in an ethernet header and trailer

b. source mac address d. destination mac address e. error checking information

what is the auto-MDIX feature on a switch

b. the automatic configuration of an interface for a straight through or a crossover ethernet cable connection

what osi physical layer term describes the capacity at which a medium can carry data

bandwidth

what is the destination mac address of the ethernet frame as it leaves the web server if the final destination is pc1

c. 00-60-2f-3a-07-cc

which two fields or features does ethernet examine to determine if a received frame is passed to the link layer or discarded by the NIC

c. Frame Check Sequence d. minimum frame size

which statement describes a characteristic of the frame header fields of the data link layer

c. They vary depending on protocols.

which statement is true about the csma/cd access method that is used in ethernet

c. all network devices must listen before transmitting

which two devices commonly affect wireless networks

c. cordless phones d. microwaves

Which media communication type does not require media arbitration in the data link layer.

c. full-duplex

which two statements describe the services provided by the data link layer.

c. it manages the access of frames to the network media. f. it packages various layer 3 PDU's into a frame format that is compatible with the network interface

what is a characteristic of the llc sublayer

c. it places information in the frame allowing multiple layer 3 protocols to use the same network interface and media.

During the encapsulation process what occurs at the data link layer for a pc connected to an ethernet network

c. the physical address is added

what osi physical layer term describes the physical medium which uses elctrical pulses

copper cable

what type of cabling is shown

d. fiber

what is the purpose of fcs field in a frame

d. to determine if errors occured in the transmission and reception

which switching method has the lowest level of latency

d.fast forward

which two functions are performed at the llc sublayer of the osi data link layer

enables ipv and ipv6 to utilize places information

what osi physical layer term describes the physical medium that uses the propagation of light

fiber optic cable

what osi physical layer term describes the measure of usable data transferred over a given period of time

goodput

what makes fiber preferable to copper cabling for interconnecting buildings

greater distances per cable run limited susceptibility to EMI/RFI greater bandwidth potential

what is one advantage of using the cut through switching method instead of the store and forward switching method.

has lower latency appropriate for high performance computing applications

what is two functions are performed at the mac sublayer of the osi data link layer

integrates various physical technologies provides synchronization between source and target nodes controls the nic provides mechanism

what is the auto-mdix feature

it enables a device to automatically configure an interface to use a straight through or a crossover

what osi physical layer term describes the amount of time including delays for data to travel from one point to another

latency

which two statements describe features or functions of the logical link control sublayer in ethernet standards

logical link control is implemented in software the data link layer uses llc to communicate with the upper layers of the protocol suite.

what does the term attenuation mean in data communication

loss of signal strength as distance increases

what osi physical layer term describes the process by which one wave modifies another wave

modulation

which method of memory buffering would work best for this task

shared memory buffering

which switching method uses the CRC value in a frame

store and forward

which frame forwarding method receives the entire frame and performs a crc check to detect errors before forwarding the frame

store and forward switching

which type of utp cable is used to connect a pc to a switch port

straight through

what osi physical layer term describes the measure of the transfer of bits across a medium over a given period of time

throughput

what is the purpose of the osi physical layer

transmitting bits across the local media

which procedure is used to reduce the effect of crosstalk in copper cables

twisting opposing circuit wire pairs together

what are two actions performed by a cisco switch

using the source mac addresses utilizing the mac address

why are two strands of fiber used for a single fiber optic connection

They allow for full-duplex connectivity

which characteristic describes crosstalk

the distortion of the transmitted messages from signals carried in adjacent wires

what action will occur if a host receives a frame with a destination mac address it does not recognize

the host will discard the frame

what action will occur if a host receives a frame with a destination mmac address of FF:FF:FF:FF:FF:FF

the host will process the frame

what action will occur if a switch receives a frame with the destination mac address 01:00:5E:00:D9

the switch forwards it out all ports except the ingress port

what action will occur if a switch receives a frame with the destination mac address fffffffff

the switch forwards it out all ports except the ingress port

what action will occur if a switch receives a frame with destination mac address fffffffff

the switch forwards it out all ports except the ingress port.

what action will occur if a switch receives a frame and does have the source mac address in the mac table

the switch refreshes the timer on that entry

what action will occur if a switch receives a frame and does not have source mac address

the switch refresshes the timer on that entry

what is wrong with the displayed termination

the untwisted length of each wire is to long