A Layered System of Data Protocols

Which of the following is the primary purpose of a Physical Layer protocol?

Transmit bits across a Physical link

What is the binary equivalent to the decimal number "14"?

00001110

A service of the session Layer that manages multiple data streams by inserting control information into the session Layer header for each activity

Activity management

Which of the following protocols is commonly used in the Session Layer?

Advanced Program-to-Program Communications (APPC)

The Session Layer is concerned with which of the following?

All of the above

The ______________ Layer includes some programs that interact directly with users, and some that provide services to user applications

Application

A_______ P_______ S_______ T_______ N______ D______ P______

Application Presentation Session Transport Network Data Link Physical

Base two numbering convention used by electronic devices

Binary

Primary ways in which data varies

Byte order (least-most) significant. character coding format of floating point numbers (3-1)

The two types of switched networks

Circuit and packet switched

Which layer of the OSI protocol stack handles frames?

Data link

Data security, data compression, and ________ are the three main services that the Presentation Layer provides.

Data representation

Starting with the bottommost layer, each process removes its own header and passes the message up to the layer above. This is called

Decapsulation

As data moves down the Protocol stack, each layer that receives data from above repackages the message by adding its own header. This is called

Encapsulation

A session must be completed in a single connection.

False: a session can require several connections to complete.

Which activities occur at the Application Layer?

File transfer and access email web browser ((all of the above))

FCS - a data field in the data link Layer trailer used to determine if a frame has been transmitted with or without errors

Frame check sequence

The Network Layer is to packets as the Data Link Layer is to:

Frames

____________ are the outermost envelopes in which a message travels along the Network. Passed to a specific node along the data link layer.

Frames

Which of the following is an example of a Network Layer protocol?

IP

Which of the following best represents a logical address?

IPv6

The Physical path that connects two nodes is called a ___________

Link

The OSI model Presentation Layer does which of the following?

Manages the way computers read information encrypts and decrypts information is concerned with the order of buyers and integers ((all of the above))

Which of the following hardware devices builds a frame?

NIC

Which type of address is unique anywhere in the world?

NIC address

The _______ Layer accepts data passed down from the transport layer, adds a header to the p________t, then passes it down to the data link Layer.

Network, packet

A __________ (4 bits) is a part of the hexadecimal numbering system. Two equal a byte

Nibble

The Transport Layer is not concerned with which of the following?

None of the above

______________ are sent down to the data link Layer by the Network Layer. The data link Layer encapsulates these by adding an addressed header and creating a frame.

Packets

Transport layer processes work with transmission channels using multiplexing and ___________ techniques.

Parallelization

Processes use __________ numbers to establish end-to-end communication without having to worry about the details of the physical link.

Port

The ______________ Layer provides data representation, data security, and data compression

Presentation

The ________________ is the layer concerned with how data is presented on the computer and represented inside the computer.

Presentation Layer

When non-message data is added to the beginning of a message, we call that additional data a ______________

Protocol header

_________ are necessary to give meaning to signals

Protocols

In data networking, ________ describes the characteristics of a transmission link, such as throughput, setup time, or accuracy.

Quality of service

Which of the following will not occur at the Physical Layer?

Rerouting of information

Encapsulation and protocol headers, decapsulation, and reassembly are three of the four basic techniques used whenever different layers of protocols work together. What is the fourth?

Segmentation

The ________ Layer is where a conversation starts and stops, and the rules of the conversation are agreed upon.

Session

Points within session activities that allows both parties to agree on/confirm the data that has been sent up until that point

Sync points

Which layers are primarily concerned with moving raw data?

The lower four

Which OSI model layers are concerned primarily with applications?

The top three

A service of the session Layer that allows nodes to conduct orderly dialog

Token passing

Some protocols as data to the end of a message. This data is called a _____________

Trailer

Which of the following is an example of a Transport Layer protocol?

Transmission Control Protocol (TCP)

Which of the following is the primary purpose of a Data Link Layer protocol?

Transmit frames across a Physical link

Which of the following is the primary purpose of a Transport Layer protocol?

Transmit messages from process to process

The ________ layer acts as a keystone separating the base physical layer delivery platforms from the logical process in higher layers.

Transport

Which layer uses port numbers for communication?

Transport Layer

Frame headers and packet headers contain addresses. True or False?

True

One or more sessions can take place during a single connection.

True