Quiz 5

The binary number 0000 1010 can be expressed as ______ in hexadecimal.

0A

The Ethernet ______ sublayer is responsible for communicating directly with the physical layer. (5.1.1)

MAC

What is the primary purpose of ARP? (5.3.2) translate URLs to IP addresses resolve IPv4 addresses to MAC addresses provide dynamic IP configuration to network devices convert internal private addresses to external public addresses

resolve IPv4 addresses to MAC addresses

What is the decimal equivalent of the hexadecimal value of 3F? (5.1.2) 18 34 45 46 63

63

The minimum Ethernet frame size is __________ bytes. Anything smaller than that should be considered a "runt frame." (5.1.1)

64

On Ethernet networks, the hexadecimal address FF-FF-FF-FF-FF-FF represents the __________ MAC address. (5.1.2)

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? (5.2.2) CRC in the trailer source MAC address in the header destination MAC address in the header protocol type in the header

CRC in the trailer

Which two functions or operations are performed by the MAC sublayer? (Choose two.) (5.1.1) It is responsible for Media Access Control. It performs the function of NIC driver software. It adds a header and trailer to form an OSI Layer 2 PDU. It handles communication between upper and lower layers. It adds control information to network protocol layer data.

It adds a header and trailer to form an OSI Layer 2 PDU.

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame? (5.2.1) It drops the frame. It sends the frame to all ports except the port on which it received the frame. It sends the frame to all ports that are registered to forward broadcasts. It sends the frame to all ports.

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

When PC1 on SW1 issues an ARP request to PC3 on SW2 connected to the same router, what will happen? (5.3.2) RT1 will forward the ARP request to PC3. RT1 will send an ARP reply with its own Fa0/0 MAC address. RT1 will send an ARP reply with the PC3 MAC address. SW1 will send an ARP reply with its Fa0/1 MAC address. RT1 will send an ARP reply with its own Fa0/1 MAC address.

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

What type of address is 01-00-5E-0A-00-02? (5.1.2) an address that reaches every host inside a local subnet an address that reaches one specific host an address that reaches every host in the network an address that reaches a specific group of hosts

an address that reaches a specific group of hosts The multicast MAC address is a special value that begins with 01-00-5E in hexadecimal. It allows a source device to send a packet to a group of devices.

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? (5.2.2) port-based buffering level 1 cache buffering shared memory buffering fixed configuration buffering

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? fragment-free fast-forward cut-through store-and-forward

store-and-forward