Cisco Chapter 5
What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?
64 bytes
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 is a characteristic of port-based memory buffering?
Frames are buffered in queues linked to specific ports.
What statement describes Ethernet?
It is the required Layer 1 and 2 standard for Internet communication.
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. 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? (Choose two.)
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.
12. Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?
PC2 will send an ARP reply with its MAC address.
A collision fragment, also known as a frame, is a frame of fewer than 64 bytes in length.
RUNT
Which statement is true about 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.
Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?
The switch will forward the frame to all ports except port 4.
What statement describes a characteristic of MAC addresses?
They must be globally unique.
What is auto-MDIX?
a feature that detects Ethernet cable type
Which switching method uses the CRC value in a frame?
store-and-forward
8. What addressing information is recorded by a switch to build its MAC address table?
the source Layer 2 address of incoming frames
What is the aim of an ARP spoofing attack?
to associate IP addresses to the wrong MAC address
