NCC chapter 5

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Which two functions or operations are performed by the MAC sublayer? (Choose two)

-It is responsible for Media Access Control -It adds a header and trailer to form an OSI Layer 2 PDU

What is the destination MAC address of the Ethernet frame as it leaves the web server if the final destination is PC1

00-60-2F-3A-07-CC

The binary number 0000 1010 can be expressed as __ in hexadecimal

0A

What is the decimal equivalent of the hexadecimal value of 3F?

63

The minimum Ethernet frame size is __ bytes. Anything smaller than that should be considered a "runt frame"

64

What type of address is 01-00-5E-0A-00-02

An address that reaches a specific group of hosts

On Ethernet networks, the hexadecimal address FF-FF-FF-FF-FF-FF represents the _________ Mac address

Broadcast

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

H2 Has sent a broadcast message to all of the hosts. If host H1 wants to reply to the broadcast message, which statement is true?

H1 sends a unicast message to H2,and the switch forwards it directly to H2.

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

It sends the frame to all ports except the port on which it received the frame

The Ethernet ___ sublayer is responsible for communicating directly with the physical layer

MAC

PC1 issues an ARP request because it needs to send a packet to PC3. n this scenario, what will happen next?

RT1 will send an ARP reply with its own Fa0/0 MAC addess

What is the primary purpose of ARP?

Resolve IPv4 to MAC addresses

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

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

Store-and-forward


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