Chapter 7

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

• repeater

• hub

• Layer 2 switch

• router

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

• hub

• router

• Layer 2 switch

• modem

What does the LLC sublayer do?

• It performs data encapsulation.

• It communicates with upper protocol layers.

• It is responsible for media access control.

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

Which statement is true about MAC addresses?

• MAC addresses are implemented by software.

• A NIC needs a MAC address only if it is connected to a WAN.

• The first 3 bytes are used by the vendor-assigned OUI.

• The ISO is responsible for MAC address regulations.

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

• The frame is dropped.

• The frame is returned to the originating network device.

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

• The frame is sent to the default gateway.

What are the minimum and maximum sizes of an Ethernet frame? (Choose two.)

• 56 bytes

• 64 bytes

• 128 bytes

• 1024 bytes

• 1518 bytes

What addressing information does a switch record in order to build its MAC address table?

• the destination Layer 3 addresses of incoming packets

• the destination Layer 2 addresses of outgoing frames

• the source Layer 3 addresses of outgoing frames

• the source Layer 2 addresses of incoming frames

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

• It is supported by IEEE 802.3 standards.

• It is supported by IEEE 802.5 standards.

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

• It uses unique MAC addresses to ensure that data is sent to and processed by the appropriate destination.

• It uses a ring topology.

What statement describes MAC addresses?

• They are globally unique.

• They are routable only within the private network.

• They are added as part of a Layer 3 PDU.

• They have 32-bit binary values.

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

• 01-5E-00

• FF-00-5E

• FF-FF-FF

• 01-00-5E