CCNA Chapter 5
What are the two sizes (minimum and maximum) of an Ethernet frame? (Choose two.)
64 bytes 1518 bytes
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
What statement describes Ethernet?
It defines the most common LAN type in the world.
The ARP table in a switch maps which two types of address together?
Layer 3 address to a Layer 2 address
Which two statements describe features or functions of the logical link control sublayer in Ethernet standards?
Logical link control is implemented in software. The data link layer uses LLC to communicate with the upper layers of the protocol suite.
What are two potential network problems that can result from ARP operation?
On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.
Fill in the blank. A collision fragment, also known as a ---------- frame, is a frame of fewer than 64 bytes in length.
RUNT
MAC addresses
The first three bytes are used by the vendor assigned OUI.
What happens to runt frames received by a Cisco Ethernet switch?
The frame is dropped.
Which statement describes the treatment of ARP requests on the local link?
They are received and processed by every device on the local network.
What statement describes a characteristic of MAC addresses?
They must be globally unique.
What is auto-MDIX?
a feature that detects Ethernet cable type
Fill in the blank. On a Cisco switch, ---------- memory buffering is used to buffer frames in queues linked to specific incoming and outgoing ports.
port-based
Fill in the blank. ARP ---------- is a technique that is used to send fake ARP messages to other hosts in the LAN. The aim is to associate IP addresses to the wrong MAC addresses.
spoofing
Which switching method uses the CRC value in a frame?
store-and-forward
What addressing information is recorded by a switch to build its MAC address table?
the source Layer 2 address of incoming frames
True or False? When a device is sending data to another device on a remote network, the Ethernet frame is sent to the MAC address of the default gateway.
true
