Cisco 1, Module 3

Which three acronyms/initialisms represent standards organizations? (Choose three.)

• IEEE

• MAC

• IETF

• OSI

• IANA

In computer communication, what is the purpose of message encoding?

• to interpret information

• to break large messages into smaller frames

• to convert information to the appropriate form for transmission

• to negotiate correct timing for successful communication

Which message delivery option is used when all devices need to receive the same message simultaneously?

• multicast

• unicast

• duplex

• broadcast

What type of communication will send a message to all devices on a local area network?

• multicast

• unicast

• duplex

• broadcast

What are two benefits of using a layered network model? (Choose two.)

• It prevents technology in one layer from affecting other layers.

• It ensures a device at one layer can function at the next higher layer.

• It speeds up packet delivery.

• It assists in protocol design.

• It prevents designers from creating their own model.

What is the purpose of protocols in data communications?

• specifying the device operating systems that will support the communication

• specifying the bandwidth of the channel or medium for each type of communication

• providing the rules required for a specific type of communication to occur

• dictating the content of the message sent during communication

Which logical address is used for delivery of data to a remote network?

• destination IP address

• destination port number

• source IP address

• destination MAC address

What is the general term that is used to describe a piece of data at any layer of a networking model?

• packet

• protocol data unit

• frame

• segment

Which two protocols function at the internet layer? (Choose two.)

• IP

• POP

• PPP

• BOOTP

• ICMP

Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?

• network

• application

• session

• presentation

• transport