Quiz 6/7
What is auto-MDIX? a) a feature that detects Ethernet cable type b) a type of port on a Cisco switch c) an Ethernet connector type d) a type of Cisco switch
a) a feature that detects Ethernet cable type
What are two potential network problems that can result from ARP operation? (Choose two.) a) On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. b) Manually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing. c) Large numbers of ARP request broadcasts could cause the host MAC address table to overflow and prevent the host from communicating on the network. d) Multiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port. e) Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.
- 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.
What are the two sizes (minimum and maximum) of an Ethernet frame? (Choose two) a) 56 bytes b) 64 bytes c) 128 bytes d) 1024 bytes e) 1518 bytes
Min = 64 bytes Max = 1518 bytes
The ARP table in a switch maps which two types of address together? a) Layer 3 address to a Layer 2 address b) Layer 3 address to a Layer 4 address c) Layer 4 address to a Layer 2 address d) Layer 2 address to a Layer 4 address
a) Layer 3 address to a Layer 2 address
What happens to runt frames received by a Cisco Ethernet switch? a) The frame is dropped. b) The frame is sent to the default gateway. c) The frame is returned to the originating network device. d) The frame is broadcast to all other devices on the same network.
a) The frame is dropped.
What addressing information is recorded by a switch to build its MAC address table? a) the source Layer 2 address of incoming frames b) the destination Layer 3 address of incoming packets c) the destination Layer 2 address of outgoing frames d) the source Layer 3 address of outgoing packets
a) the source Layer 2 address of incoming frames
Which statement describes the treatment of ARP requests on the local link? a) They are received and processed by every device on the local network. b) They are received and processed only by the target device. c) They must be forwarded by all routers on the local network. d) They are dropped by all switches on the local network.
b) They are received and processed only by the target device.
Which switching method uses the CRC value in a frame? a) fast-forward b) store-and-forward c) cut-through d) fragment-free
b) store-and-forward
Which destination address is used in an ARP request frame? a) 255.255.255.255 b) 0.0.0.0 c) FFFF.FFFF.FFFF d) 01-00-5E-00-AA-23 e) 127.0.0.1
c)FFFF.FFFF.FFFF
What statement describes a characteristic of MAC addresses? a) They are added as part of a Layer 3 PDU. b) They have a 32-bit binary value. c) They are only routable within the private network. d) They must be globally unique.
d) They must be globally unique.
