Ccna Exam 2024 | CCNA Actual Exam
Update 2024 Questions and Correct
Answers Rated A+
What osi physical layer term describes the physical medium which
uses electrical pulses? -answer-copper cable
What are two actions performed by a cisco switch? -answer-using the
source mac addresses of frames to build and maintain a mac address
table
Utilizing the mac address table to forward frames via the destination
mac address
What is the auto-mdix feature? -answer-it enables a device to
automatically configure an interface to use a straight-through or a
crossover cable.*
Which is a multicast mac address? -answer-01-00-5e-00-00-03
A network administrator is connecting two modern switches using a
straight-through cable. The switches are new and have never been
configured. Which three statements are correct about the final result of
the connection? -answer-the link between the switches will work at the
fastest speed that is supported by both switches.
The link between switches will work as full-duplex.
The auto-mdix feature will configure the interfaces eliminating the
need for a crossover cable.*
What is the auto-mdix feature on a switch? -answer-the automatic
configuration of an interface for a straight-through or a crossover
ethernet cable connection
,Which switching method has the lowest level of latency? -answer-fast-
forward
What is one advantage of using the cut-through switching method
instead of the store-and-forward switching method? -answer-has a
lower latency appropriate for high-performance computing applications
A layer 2 switch is used to switch incoming frames from a 1000base-t
port to a port connected to a 100base-t network. Which method of
memory buffering would work best for this task? -answer-shared
memory buffering
Which frame forwarding method receives the entire frame and
performs a crc check to detect errors before forwarding the frame? -
answer-store-and-forward switching
Which advantage does the store-and-forward switching method have
compared with the cut-through switching method? -answer-frame error
checking
Which three basic parts are common to all frame types supported by
the data link layer? -answer-header / data / trailer
Which statement is true about the csma/cd access method that is
used in ethernet? -answer-all network devices must listen before
transmitting
What three items are contained in an ethernet header and trailer? -
answer-source mac address
Destination mac address
Error-checking information
, During the encapsulation process, what occurs at the data link layer
for a pc connected to an ethernet network? -answer-the physical
address is added
Which two statements describe the services provided by the data link
layer? -answer-it manages the access of frames to the network media
It packages various layer 3 pdus into a frame format that is compatible
with the network interface
What is contained in the trailer of a data-link frame? -answer-error
detection
Which two fields or features does ethernet examine to determine if a
received frame is passed to the data link layer or discarded by the
nic? -answer-frame check sequence
Minimum frame size
Which media communication type does not require media arbitration
in the data link layer? -answer-full-duplex
What type of communication rule would best describe csma/cd? -
answer-access method
In addition to the cable length, what two factors could interfere with the
communication carried over utp cables? -answer-crosstalk
Electromagnetic interference
With the use of unshielded twisted-pair copper wire in a network, what
causes crosstalk within the cable pairs? -answer-the magnetic field
around the adjacent pairs of wire
What is a primary role of the physical layer in transmitting data on the
network? -answer-create the signals that represent the bits in each
frame on to the media.
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