Network+ Guide To Networks Chapter 3 - How Data Is Transported Over Networks

Front 1

Devices that allow two or more networks or multiple parts of one network to connect and exchange data.

Back 1

Connectivity Devices

Front 2

TCP uses what to establish a TCP connection?

Back 2

three-way handshake

Front 3

How many fields are in a TCP header?

Back 3

10

Front 4

TCP sends a ________ of character strings to the destination host? The destination host sends a similar message back to to establish the fact that the two can talk to each other.

Back 4

checksum

Front 5

Messages do not always arrive in the same order they were sent. TCP attaches a chronological _________ __________ to each segment so the destination host can reorder the segments has they arrive.

Back 5

sequence number

Front 6

The process of gauging the appropriate rate of transmissions based on how quickly the recipient can accept data is what?

Back 6

flow control

Front 7

In a TCP segment the _______ _______ indicates the port number at the source node.

Back 7

Source Port

Front 8

In a TCP segment the ________ _______ indicates the port number at the destination note.

Back 8

Destination Port

Front 9

In a TCP segment the ________ ________ identifies the data segments position in stream of data segments already sent

Back 9

Acknowledgement number (ACK)

Front 10

What is the maximum number of bytes in a TCP header length field of a TCP segment?

Back 10

60 bytes

Front 11

In a TCP segment what indicates the field will be for later use?

Back 11

reserved

Front 12

What are the six flag used in a TCP segment?

Back 12

URG - urgent pointer field

ACK - Acknowledgement contains info for the receiver

PSH - Push the data to an application without buffering

RST - Indicates the connection to be reset

SYN - Synchronization of the sequence number between two nodes.

FIN - Finishes the segment and signals the connections to be closed.

Front 13

What TCP Segment field is responsible for flow control?

Back 13

Sliding-window size (or window)

Front 14

What field in a TCP segment allows the receiving node to determine whether the TCP segment became corrupted during transmission?

Back 14

checksum

Front 15

The field in a TCP/IP segment that indicates a location in the data field where ________ data resides.

Back 15

Urgent Pointer

Front 16

The field in a TCP/IP segment specifies special ________, such as the maximum segment size a network can handle.

Back 16

options

Front 17

This field in a TCP/IP segment contains filler information to ensure the size of the TCP header is a multiple of 32 bits.

Back 17

padding

Front 18

This field in a TCP/IP segment contains data originally sent by the source host.

Back 18

data

Front 19

This protocol provides no error checking or sequencing. For example talking on a radio show where you can send out your signal whether anyone is listening or not. It is more efficient than TCP and is useful when large amounts of data must be transferred quickly.

Back 19

UDP (user datagram protocol)

Front 20

How many fields are in a UDP header?

Back 20

4

Front 21

The ___ packet acts as an envelope for data and contains information necessary for routers to transer data between different LAN segments

Back 21

IP

Front 22

What indicates the maximum duration that an IPv4 packet can remain on the network before it is discarded? When a router receives a packet with ______ set to 0 it discards the packet.

Back 22

TTL (time to live)

Front 23

What can indicate when part of a network is congested, when data fails to reach its destination, and when data has been discarded because the allotted Time to Live has expired.

Back 23

ICMP (internet control message protocol)

Front 24

This protocol works at the network layer and manages multicasting. Used for teleconferencing or video conferencing over the internet.

Back 24

IGMP (internet group management protocol)

Front 25

The database of IP-to-MAC address mappings on a router is known as what?

Back 25

ARP table

Address Resolution Protocol table

Front 26

A group of networks within the same domain that are operated by the same organization are known as what kind of system?

Back 26

autonomous system

Front 27

These types of routers direct data between networks within the same autonomous system.

Back 27

Interior routers

Front 28

These types of routers connect autonomous systems with an outside network.

Back 28

Border routers or gateway routers

Front 29

These types of routers operate on the internet backbone and direct data between autonomous systems

Back 29

Exterior routers

Front 30

This database maintains information about where hosts are located and the most efficient way to reach them.

Back 30

Routing Table

Front 31

What command allows you to view a host's routing table on a windows based system?

Back 31

route print

Front 32

The time it takes for routers to recognize the best path for routing protocols in the event of a change or network outage.

Back 32

convergence time

Front 33

This calculates the best path to a destination on the basis of the distance to that destination. They periodically exchange their route information with neighboring routers.

Back 33

Distance-vector routing protocols

Front 34

This enables routers to communicate beyond neighboring routers, after which each router can independently map the network and determine the best path between itself and a message's destination node.

Back 34

link-state routing protocol

Front 35

Routing protocols used by border routers and exterior routers to distribute data outside of autonomous systems.

Back 35

EGP (exterior gateway protocols)

Front 36

A link state routing protocol used on interior or border routers. Has no hop limits on a transmission path, uses a complex algorithm for determining the best path, and maintains a database of other routers links.

Back 36

OSPF (open shortest path first)

Front 37

A link state routing protocol that uses the best path algorithm, but only was designed for use on interior routers only.

Back 37

IS-IS (intermedieate system to intermediate system)

Front 38

The only exterior gateway protocol and known as the "protocol of the internet". Spans multiple autonomous systems and used by border and exterior routers.

Back 38

BGP (border gateway protocol)

Front 39

RIP

Router location?

Algorithm?

Back 39

Routing Information Protocol

Router Location - Interior

Algorithm - Distance Vector

Front 40

RIPv2

Router Location?

Algorithm?

Back 40

Routing Information Protocol version 2

Router Location - Interior

Algorithm - Distance Vector

Front 41

OSPF

Router Location?

Algorithm?

Back 41

Open Shortest Path First

Router Location - Interior or Border

Algorithm used - Link State

Front 42

IS-IS

Router Location?

Algorithm?

Back 42

Intermediate System to Intermediate System

Router Location - Interior

Algorithm - Link State

Front 43

BGP

Router Location?

Algorithm?

Back 43

Border Gateway Protocol
Router Location - Exterior or border
Algorithm - Advanced distance vector

Front 44

What command or utility displays TCP/IP statistics and details about TCP/IP components and connections on a host.

Includes which port a TCP/IP service is running; which network connections are currently established; number of messages and errors a network interface has handled.

Back 44

netstat