Chapter 1 & 3 Networks

used to connect an end system to an edge router

A local area network (LAN) is _______________.

false

Suppose that host A wants to send data over TCP to host B, and host B wants to send data to host A over TCP. Two separate TCP connections - one for each direction - are needed.

there is a large distance between source and destination and the transmission rate is high

The stop-and-wait protocol is highly inefficient when

True

The time required to examine a packet's header and determine where to direct the packet is part of the processing delay?

a segment

The TCP transport-layer packet in the TCP/IP protocol suite is called

Reno TCP

The ___________ added a new state to the congestion control FSM, called the fast recovery state.

Digital Subscriber Line

The acronym DSL stands for

application, presentation, and session

The application layer in the TCP/IP protocol suite is usually considered to be the combination of ________ layers in the OSI model

user datagrams

UDP packets are called __________ .

fourth; third

In TCP/IP, a packet at the third layer carries data belonging to the ________ layer and the header belonging to the _________ layer.

false

Before sending a packet into a datagram network, the source must determine all of the links that packet will traverse between source and destination.

ICANN

Currently _______ is responsible for the management of Internet domain names and addresses

persistence

In TCP, a special segment called a probe is sent by a sending TCP when the _______ timer goes off.

no

In TCP, an ACK segments that carry no data consumes _______ sequence number(s).

half-close

In TCP, one end can stop sending data while still receiving data. This is called a ______ termination.

one

In TCP, the receiver can temporarily shut down the window; the sender, however, can always send a segment of _____ byte(s) after the window is shut down.

first

In TCP, the sequence number for each segment is the number of the _______ byte (virtual byte) carried in that segment.

next

In TCP, the value of the acknowledgment field in a sent segment defines the sequence number related to the ______ byte a party expects to receive next.

link

In TCP/IP, a logical connection between an entity at the link layer can be made with another entity at the ________ layer.

application

In TCP/IP, a message at the application layer is encapsulated in a packet at the ________ layer.

network

In TCP/IP, a message at the transport layer is encapsulated in a packet at the ________ layer.

transport layer

In the TCP/IP protocol suite, a port number is the identifier at the ____________.

data link

In the TCP/IP protocol suite, the ______ layer is responsible for moving frames from one hop (node) to the next.

individual bits

In the TCP/IP protocol suite, the physical layer is concerned with the movement of _______ over the physical medium.ó

The Transmission Control Protocol (TCP)

In the TCP/IP protocol suite, which of the following is a transport layer protocol?

FTP

In the TCP/IP protocol suite, which of the following is an application layer protocol?

The Internet Engineering Task Force

Internet standards are developed by

false

Propagation delay is the amount of time it takes to push all of a packets bits into the link

byte

TCP sliding windows are __________ oriented.

an acknowledgment mechanism

TCP uses _________________ to check the safe and sound arrival of data.

unreliable

The Internet Protocol (IP) is ________ protocol.

False

Transmission delay in a wired network is the amount of time it takes for a bit to travel along the wire from the source to the destination.

Multiplexing; Demultiplexing

______________ means accepting items from more than one source. ______________ means examining data that could be intended for different destinatons and delivering the data to the correct destination.