1A Review Questions Flashcards
Define an internetwork
A collection of individual networks, connected by internetworking devices that function as a single large network.
What are the four common challenges to internetworks?
Connectivity, reliable service, network management, flexibility
A portion of the network, limited by its router connection to a specific group of host computers in a common LAN segment is called a?
Broadcast Domain
In the context of data networking, a _______ is a formal set of rules and conventions that governs how computers and other network entities exchange information over a network medium.
Protocols
What type of address is commonly referred to as the virtual or logical address? Provide an example
Network Addresses, 172.—.—.—
How many network layer addresses do routers require?
One per interface enabled for each net protocol used.
What types of protocols are responsible for providing logical addressing routers to use to determine where to send a data packet to the destination network?
Routed Protocols
____ is the primary routed network layer protocol and is considered the heart of Internet protocols
IP
List the two primary responsibilities of IP?
Providing a connectionless, best effort delivery of packets through an internetwork based on logically assigned addresses; and providing fragmentation and reassembly of packets to support data links with different maximum transmission unit sizes
Which protocol is used to Map IP network addresses to Media Access Control addresses?
Address Resolution Protocol (ARP)
A network layer protocol that is used to send packets, which act as keep-alives, between routers is called?
Hello Protocols
_______ is a network layer internet protocol that provides message packets to report errors and other information regarding IP packet processing back to the source.
The Internet Control Message Protocol (ICMP)
Explain the differences between routing protocols and routed protocols.
Routed- Encapsulates and packages packets, Routing- The actual delivery and building of tables.
A collection of networks under a common administration that share a common routing strategy is called an?
Autonomous System
List 4 examples of Interior Gateway Protocols.
RIP, IGRP, EIGRP, and OSPF
Define the term default gateway.
An IP address on a layer 3 that serves as an access point either coming in or going out.
The act of moving information across a packet switching internetwork from a source to a destination is called?
Routing
List two major Functions of a router?
Path Determination, and Packet Switching
The results of routers algorithmic calculations of available network paths and their associated metric costs are listed in the?
Routing Tables
A router can discard a packet by use of an ________ if it does not meet certain criteria statements.
ACL
List the external components and their purpose.
Console Port- Allows local configuration
Aux Port- Configure Remotely
Network Interfaces- Connection to a LAN, Remote Admin
