Networking module 7 practice questions

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame? a. switch b. hub c. router d. repeater

a. switch

Which statement is true about MAC addresses? a. the first three bytes are used by the vendor-assigned OUI. b. a NIC only needs a MAC address if connected to a WAN c. the ISO is responsible for MAC address regulations d. MAC addresses are implemented by software.

a. the first three bytes are used by the vendor-assigned OUI.

What happens to runt frames received by a Cisco Ethernet switch? a. the frame is dropped b. the frame is returned to the originating network device c. the frame is broadcast to all other devices on the same network d. the frame is sent to the default gateway.

a. the frame is dropped

What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address? a. it will strip off the data-link frame to check the destination IP address. b. it will discard the frame c. it will remove the frame from the media d. it will forward the frame to the next host

b. it will discard the frame

Which network device has the primary function to send data to a specific destination based on the information found in the MAC address table? a. router b. switch c. modem d. hub

b. switch

What addressing information is recorded by a switch to build its MAC address table? a. the destination layer 2 address of outgoing frames b. the source layer 3 address of outgoing packets c. the source layer 2 address of incoming frames d. the destination layer 3 address of incoming packets

c. the source layer 2 address of incoming frames

What are the two sizes (minimum and expected maximum) of an Ethernet frame? (Choose two.) a. 1518 bytes b. 128 bytes c. 1024 bytes d. 64 bytes e. 56 bytes

a. 1518 bytes d. 64 bytes

What is the special value assigned to the first 24 bits of a multicast MAC address transporting an IPv4 packet? a. FF-00-5E b. FF-FF-FF c. 01-00-5E d. 01-5E-00

c. 01-00-5E

What type of address is 01-00-5E-0A-00-02? a. an address that reaches every host inside a local subnet b. an address that reaches one specific host c. an address that reaches a specific group of hosts d. an address that reaches every host in the network

c. an address that reaches a specific group of hosts

Which two characteristics describe Ethernet technology? (Choose two.) a. it uses a ring topology b. it is supported by IEEE 802.5 standards c. it uses unique MAC addresses to ensure that data is sent to the appropriate destination. d. it is supported by IEEE 802.3.standards e. it typically uses an average of 16 Mbps for data transfer rates

c. it uses unique MAC addresses to ensure that data is sent to the appropriate destination. d. it is supported by IEEE 802.3.standards

What is auto-MDIX? a. a feature to automatically determine speed and duplex b. an ethernet connector type c. a type of Cisco switch d. a feature that detects ethernet cable type

d. a feature that detects ethernet cable type

Which function or operation is performed by the LLC sublayer? a. it performs data encapsulation b. it adds a header and trailer to a packet to form an OSI layer 2 PDU. c. it is responsible for media access control. d. it communicates with upper protocol layers

d. it communicates with upper protocol layers

Which two functions or operations are performed by the MAC sublayer? (Choose two.) a. it handles communication between upper and lower layers. b. it adds control information to network protocol layer data c. it performs the function of NIC driver software d. it is responsible for media access control. e. it adds a header and trailer to form an OSI layer 2 PDU.

d. it is responsible for media access control. e. it adds a header and trailer to form an OSI layer 2 PDU.

What statement describes a characteristic of MAC addresses? a. they are only routable within the private network b. they have a 32-bit binary value c. they are added as part of a layer 3 PDU d. they must be globally unique

d. they must be globally unique