Which two engineering organizations define open standards and protocols that apply to the data link layer? (Choose two.)

Institute of Electrical and Electronics Engineers (IEEE)

International Telecommunication Union (ITU)

Internet Assigned Numbers Authority (IANA)

Electronic Industries Alliance (EIA)

What is true concerning physical and logical topologies?

Logical topologies refer to how a network transfers data between devices.

The logical topology is always the same as the physical topology.

Physical topologies are concerned with how a network transfers frames.

Physical topologies display the IP addressing scheme of each network.

Which statement describes the half-duplex mode of data transmission?

Data that is transmitted over the network flows in one direction at a time.

Data that is transmitted over the network can only flow in one direction.

Data that is transmitted over the network flows in one direction to many different destinations simultaneously.

Data that is transmitted over the network flows in both directions at the same time.

Which is a function of the Logical Link Control (LLC) sublayer?

To identify which network layer protocol is being used

To define the media access processes that are performed by the hardware

To provide data link layer addressing

To accept segments and package them into data units that are called packets

What are two services performed by the data link layer of the OSI model? (Choose two.)

It accepts Layer 3 packets and encapsulates them into frames.

It provides media access control and performs error detection.

It fragments data packets into the MTU size.

It determines the path to forward packets.

It monitors the Layer 2 communication by building a MAC address table.

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?

The use of full-duplex capable Layer 2 switches

The virtually unlimited availability of IPv6 addresses

The development of half-duplex switch operation

The use of Gigabit Ethernet speeds

Which two characteristics describe Ethernet technology? (Choose two.)

It is supported by IEEE 802.3 standards.

It uses unique MAC addresses to ensure that data is sent to the appropriate destination.

It is supported by IEEE 802.5 standards.

It typically uses an average of 16 Mbps for data transfer rates.

What statement describes a characteristic of MAC addresses?

They are only routable within the private network.

They are added as part of a Layer 3 PDU.

They have a 32-bit binary value.

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?

It will forward the frame to the next host.

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

Which function or operation is performed by the LLC sublayer?

It communicates with upper protocol layers.

It performs data encapsulation.

It is responsible for media access control.

It adds a header and trailer to a packet to form an OSI Layer 2 PDU.

What happens to runt frames received by a Cisco Ethernet switch?

The frame is returned to the originating network device.

The frame is broadcast to all other devices on the same network.

The frame is sent to the default gateway.

What addressing information is recorded by a switch to build its MAC address table?

The source Layer 2 address of incoming frames

The destination Layer 3 address of incoming packets

The destination Layer 2 address of outgoing frames

The source Layer 3 address of outgoing packets

A feature that detects Ethernet cable type

A feature to automatically determine speed and duplex

What type of address is 01-00-5E-0A-00-02?

An address that reaches a specific group of hosts

An address that reaches every host inside a local subnet

An address that reaches one specific host

An address that reaches every host in the network

Which statement is true about MAC addresses?

The first three bytes are used by the vendor assigned OUI.

MAC addresses are implemented by software.

A NIC only needs a MAC address if connected to a WAN.

The ISO is responsible for MAC addresses regulations.

Which two functions or operations are performed by the MAC sublayer? (Choose two.)

It is responsible for Media Access Control.

It adds a header and trailer to form an OSI Layer 2 PDU.

It performs the function of NIC driver software.

It handles communication between upper and lower layers.

It adds control information to network protocol layer data.

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