CCNA - ITN - 7.5.2

Which two characteristics describe Ethernet technology? (Choose two.)

• It is supported by IEEE 802.5 standards

• It typically uses an average of 16 Mbps for data transfer rates

• It uses unique MAC addresses to ensure that data is sent to the appropiate destination

• It is supported by IEEE 802.3 standards

• It uses a ring topology

What statement describes a characteristic of MAC addresses?

• They are added as part of a Layer 3 PDU

• They must be globally unique

• They are only routable within the private network

• They have a 32-bit binary value

What is the special value assigned to the first 24 bits of a multicast MAC address transporting an IPv4 packet?

• 01-5E-00

• FF-FF-FF

• 01-00-5E

• FF-00-5E

What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address?

• It will strip off the data-link frame to check the destination IP address

• It will forward the frame to the next host

• It will discard the frame

• It will remove the frame from the media

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?

• hub

• router

• repeater

• switch

Which network device has the primary function to send data to a specific destination based on the information found in the MAC address table?

• hub

• router

• modem

• switch

Which function or operation is performed by the LLC sublayer?

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

• It performs data encapsulation

• It is responsible for media access control

• It communicates with upper protocol layers

What happens to runt frames received by a Cisco Ethernet switch? 

• The frame is broadcast to all other devices on the same network

• The frame is dropped

• The frame is sent to the default gateway

• The frame is returned to the originaring network device

What addressing information is recorded by a switch to build its MAC address table?

• the source Layer 3 address of outgoing packets

• the source Layer 2 address of incoming frames

• the destination Layer 3 address of incoming packets

• the destination Layer 2 address of outgoing frames

What is auto-MDIX? 

• an Ethernet connector type

• a type of Cisco switch

• a feature to automatically determine speed and duplex

• a feature that detects Ethernet cable type