Module 3: Protocols and Models

True

True or false. Standards organizations are usually vendor-neutral.

Ethernet

Which protocol operates at the network access layer of the TCP/IP model?

Routing protocols. Messaging. Internet protocol.

Which services are provided by the internet layer of the TCP/IP protocol suite? (Choose three.)

Formatting

Which step of the communication process is concerned with properly identifying the address of the sender and receiver?

Flow control. Access method. Response timeout

Which three are components of message timing? (Choose three.)

DNS and DHCP

Which two protocols are service discovery protocols? (Choose two.)

DNS and DHCP

Which two protocols belong in the TCP/IP model application layer?

routing

BGP and OSPF are examples of which type of protocol?

transport

UDP and TCP belong to which layer of the TCP/IP protocol?

data link

Which protocol stack layer encapsulates data into frames?

encapsulation

What is the name of the process of adding protocol information to data as it moves down the protocol stack?

destination MAC, source MAC

What is the order of the two addresses in the data link frame?

subnet mask

What is used to determine the network portion of an IPv4 address?

IP at the internet layer

A device receives a data link frame with data and processes and removes the Ethernet information. What information would be the next to be processed by the receiving device?

TCP

This protocol is responsible for guaranteeing the reliable delivery of information.

Internet Engineering Task Force (IETF)

This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones.

Internet Assigned Numbers Authority (IANA)

This standards organization is responsible for IP address allocation and domain name management.

False

True or False? Data Link addresses are physical so they never change in the data link frame from source to destination.

True

True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway.

False

True or false? The right-most part of an IP address is used to identify the network that a device belongs to.

segment

What is the PDU associated with the transport layer?

Encoding

What is the process of converting information into the proper form for transmission?

segmentation

What is the process of dividing a large data stream into smaller pieces prior to transmission?

to uniquely label transmitted segments of data for proper reassembly by the receiver

What is the purpose of the sequencing function in network communication?

electric wiring and connectors

What types of standards are developed by the Electronics Industries Alliance (EIA)?

Multicast

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?

ICMPv4 and ICMPv6

Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Choose two.)

Networking layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits. Data link layer addresses are physical and network layer addresses are logical. Network layer addresses are either 32 or 128 bits in length.

Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.)