Checkpoint Ethernet Concepts Exam 4-7 review # 3

Which switching method has the lowest level of latency?

• cut-through

• store-and-forward

• fragment-free

• fast-forward

A network administrator is connecting two modern switches using a straight-through cable. The switches are new and have never been configured. Which three statements are correct about the final result of the connection? (Choose three.)

• The link between the switches will work at the fastest speed that is supported by both switches.

• The link between switches will work as full-duplex.

• If both switches support different speeds, they will each work at their own fastest speed.

• The auto-MDIX feature will configure the interfaces eliminating the need for a crossover cable.

• The connection will not be possible unless the administrator changes the cable to a crossover cable.

Which advantage does the store-and-forward switching method have compared with the cut-through switching method?

• collision detecting

• frame error checking

• faster frame forwarding

• frame forwarding using IPv4 Layer 3 and 4 information

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

• source MAC address in the header

• destination MAC address in the header

• protocol type in the header

Which switching method uses the CRC value in a frame?

• cut-through

• fast-forward

• fragment-free

• store-and-forward

What are two actions performed by a Cisco switch? (Choose two.)

• building a routing table that is based on the first IP address in the frame header

• using the source MAC addresses of frames to build and maintain a MAC address table

• forwarding frames with unknown destination IP addresses to the default gateway

• utilizing the MAC address table to forward frames via the destination MAC address

• examining the destination MAC address to add new entries to the MAC address table

Which two statements describe features or functions of the logical link control sublayer in Ethernet standards? (Choose two.)

• Logical link control is implemented in software.

• Logical link control is specified in the IEEE 802.3 standard.

• The LLC sublayer adds a header and a trailer to the data.

• The data link layer uses LLC to communicate with the upper layers of the protocol suite.

• The LLC sublayer is responsible for the placement and retrieval of frames on and off the media.

What is the auto-MDIX feature?

• It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

• It enables a device to automatically configure the duplex settings of a segment.

• It enables a device to automatically configure the speed of its interface.

• It enables a switch to dynamically select the forwarding method.

What is one advantage of using the cut-through switching method instead of the store-and-forward switching method?

• has a positive impact on bandwidth by dropping most of the invalid frames

• makes a fast forwarding decision based on the source MAC address of the frame

• has a lower latency appropriate for high-performance computing applications​

• provides the flexibility to support any mix of Ethernet speeds

Which is a multicast MAC address?

• FF-FF-FF-FF-FF-FF

• 5C-26-0A-4B-19-3E

• 01-00-5E-00-00-03

• 00-26-0F-4B-00-3E