data transferred in the data link layer is in the form
which one of the following networking terms is not associated with the same osi layer as the others?
which of the following functions is not performed by tcp?
bit synchronization is handled at which layer?
identify the order of the 5 step encapsulation? 1. create the segment 2. convert the frame to bits 3. create the packet 4. create the frame 5. user creates the data
which layers of the osi model are included in the lower layers？
ip is implemented at which osi model layer?
where is encapsulation used in the osi model?
what is the protocol data unit (pdu) employed at the data link layer?
which of the following protocols are examples of tcp/ip network access layer protocols?
transport layer protocols that establish a connection with another node before they begin tranitting data are known as :
encryption takes place at which layer?
which layer establishes, maintains, and terminates communications between applications located on different devices?
which layer uses the segments as a protocol data unit (pdu)?
which osi layer defines the standards for cabling and connection ?
packets are found at which layer?
what are the osi layers above and below the session layer？
what are the osi layer above and below the session layer.
. in the data link layer for the osi model, error checking is accomplished by a:
error detection and recovery takes place at which layer?
which layer handles the formatting of application data so that it will be readable by the destination system?
the network layer uses physical addresses to route data to destination hosts.
which layer falls between the presentation layer and the transport layer?
the _______ layer is responsible for delivering data units from one station to the next without errors.
the _______ model shows how the network functions of a computer ought to be organized.
tcp/ip is a ______ hierarchical protocol suite developed _____ the osi model.
which of the following is an application layer service?
the_________ layer is responsible for the delivery of a message from one process to another.
communication between a computer and a keyboard involves ______________ tranission.
_______ refers to the structure or format of the data, meaning the order in which they are presented.
the information to be communicated in a data communications system is the _______.
________ is a collection of many separate networks.
in _______ tranission, the channel capacity is shared by both communicating devices at all times.
this was the first network.
_______ describes the position of the waveform relative to time 0.
a sine wave in the ______ domain can be represented by one single spike in the _____ domain.
________ is a type of tranission impairment in which the signal loses strength due to the resistance of the tranission medium.
the _________ product defines the number of bits that can fill the link.
________ is a type of tranission impairment in which an outside source such as crosstalk corrupts a signal.
if the bandwidth of a signal is 5 khz and the lowest frequency is 52 khz, what is the highest frequency?
am and fm are examples of ________ conversion.
_________ utilization is the use of available bandwidth to achieve specific goals.
the sharing of a medium and its link by two or more devices is called _______.
_________ cable consists of an inner copper core and a second conducting outer sheath.
he inner core of an optical fiber is _________ in composition.
signals with a frequency above 30 mhz use _______propagation.
in fiber optics, the signal is _______ waves.
_________ media transport electromagnetic waves without the use of a physical conductor.
________ cable is used for voice and data communications.
__________ consists of a central conductor and a shield.
in _______ tranission, bits are tranitted over a single wire, one at a time.
what is the major factor that makes coaxial cable less susceptible to noise than twisted-pair cable?
________ are used for short-range communications such as those between a pc and a peripheral device.
radio waves are _________.
tranission media are usually categorized as _______.
when a beam of light travels through media of two different densities, if the angle of incidence is greater than the critical angle, _______ occurs.
a parabolic dish antenna is a(n) _________ antenna.
which of the following is not a guided medium?
_______ signals can have only a limited number of values.
for a ______ channel, the nyquist bit rate formula defines the theoretical maximum bit rate.
_________ can impair a signal.
what is the bandwidth of a signal that ranges from 1 mhz to 4 mhz?
given two sine waves a and b, if the frequency of a is twice that of b, then the period of b is ________ that of a.
a periodic signal completes one cycle in 0.001 s. what is the frequency?
the ____ address uniquely defines a host on the internet.
the _______ is the physical path over which a message travels.
in a ______ connection, two and only two devices are connected by a dedicated link.
in a ________ connection, three or more devices share a link.
signals with a frequency between 2 mhz and 30 mhz use _______ propagation.
in a fiber-optic cable, the signal is propagated along the inner core by _______.
________ cable can carry signals of higher frequency ranges than _______ cable.
________ cables are composed of a glass or plastic inner core surrounded by cladding, all encased in an outside jacket.
_________ are used for cellular phone, satellite, and wireless lan communications.
which of the following primarily uses guided media?
signals can be ________.
________is the rate of change with respect to time.