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CCNA V7.0 CH 1-7 Mid Term Exam Flashcards| Questions and Answers
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CCNA V7.0 CH 1-7 Mid Term Exam Flashcards| Questions and Answers
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CCNA V7.0 CH 1-7 Mid Term ExamFlashcards| Questions and Answers
Which statement is true about the CSMA/CD access method that is used in
Ethernet? - -All network devices must listen before transmitting.
-What type of communication rule would best describe CSMA/CD? - -access
method
-Which three basic parts are common to all frame types supported by the
data link layer? - -*Header
*Data
*Trailer
-What three items are contained in an Ethernet header and trailer? - -
*Source MAC address
*Destination MAC address
*Error-checking information
-What are three ways that media access control is used in networking? - -
*Ethernet utilizes CSMA/CD.
*Media access control provides placement of data frames onto the media.
*Data link layer protocols define the rules for access to different media.
-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 frame.
-A network team is comparing physical WAN topologies for connecting
remote sites to a headquarters building. Which topology provides high
availability and connects some, but not all, remote sites? - -partial mesh
-Which media communication type does not require media arbitration in the
data link layer? - -full-duplex
-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? - -*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.
, -Which advantage does the store-and-forward switching method have
compared with the cut-through switching method? - -frame error checking
-What are two examples of the cut-through switching method? - -*fast-
forward switching
*fragment-free switching
(FF SQUAD)
-Which is a multicast MAC address? - -01-00-5E-00-00-03
-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? - -shared memory buffering
-What is the auto-MDIX feature? - -It enables a device to automatically
configure an interface to use a straight-through or a crossover cable.
-What is the auto-MDIX feature on a switch? - -the automatic configuration
of an interface for a straight-through or a crossover Ethernet cable
connection
-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 are two actions performed by a Cisco switch? - -*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
-Which switching method uses the CRC value in a frame? - -store-and-
forward
-What is the purpose of the FCS field in a frame? - -to determine if errors
occurred in the transmission and reception
-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.
-Which two functions are performed at the LLC sublayer of the OSI data link
layer? - -*Enables IPv4 and IPv6 to utilize the same network interface and
media.
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