ExamCompass: Network+ Practice Exam 8

PAT

A Network Address Translation (NAT) method that binds a combination of private IP address and port number with a corresponding public IP address and port information

ipconfig /all

A command-line command used to display MAC address in MS Windows

TTL

A field in an IP datagram that specifies how many more hops a packet can travel before being discarded

Static route

A manually-configured routing entry

CSMA

A network protocol providing means for controlling access to a transmission medium

Routing table

A set of rules stored on a Layer 3 switch or a networked host that allows to determine the topology of the surrounding network

collision

A situation in which two or more demands are made simultaneously on equipment that can handle only one at any given moment

Multicast

A type of network traffic intended for a particular group of hosts

Unicast

A type of network traffic intended for a single host identified by a unique IP address

Hard-coded into a NIC 48-bit hexadecimal number Physical address

Characteristic features of a MAC address

route print netstat -r

Command-line commands in MS Windows which are used to display the contents of a routing table

ifconfig

Commands used to display MAC address in Linux

Router

Device used for separating broadcast domains

IP to MAC

Kind of resolution provided by Address Resolution Protocol (ARP)

Smurf attack

Network attack type which exploits broadcast traffic

Network Address Translation (NAT)

Provides an IP proxy between a private LAN and a public network such as the Internet.

CSMA/CD

Solution which allows for verifying the absence of other traffic on a shared medium before transmitting in order to prevent collisions and loss of data in 802.3 networks

NAT

Solution which hides the internal IP addresses by modifying IP address information in IP packet headers while in transit across a traffic routing device

Broadcast

Transmission type which would be used to reach a networked host with unknown address

CSMA/CA

allows for controlling the shared medium in order to minimize collisions in 802.11 networks

All routers have finished updating their routing tables

known as a convergence state in routing

Maximum hop count Time to live (TTL)

mechanisms which can be used to prevent routing loops

A loopback interface on a router

provides the means for basic testing whether the router is on and operational

NAT

solutions alleviates the problem of the depleting IPv4 address space by allowing multiple hosts on the same private LAN to share a single public IP address

Dynamic routing

the process of the automated update of a routing table