NCC chapter 5
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
