Shared Flashcard Set

Details

Network Architecture
Functions and applications of various network devices
20
Computer Networking
Graduate
01/25/2017

Additional Computer Networking Flashcards

 


 

Cards

Term

 

 

 

What are routers?

Definition

 

 

These are devices that do the job of directing data around the network. As the data arrives, the router determines its destination of the data and determines the best way for the data to travel.

Term

 

 

 

How does a router determine the destination for data?

Definition

 

 

The software configured network addresses are used by the router for determining the destination.

Term

 

 

 

Which functions best: a router, a switch, or a bridge?

Definition

 

 

 

Routers prove better than bridges and switches when it comes to functioning. They are also more complex.

Term

 

 

 

What is a Network Switch versus a Router?

Definition

 

 

Switches create a network. Routers connect networks. A router links computers to the Internet, so users can share the connection. A router needs a minimum two network interfaces.

Term

 

 

 

What are the two ways a router can be installed?

Definition

 

 

 

A router can be installed as a dedicated hardware device or as a server system.

Term

 

 

 

What are the advantages of dedicated hardware routers?

Definition

 

 

 

They offer greater levels of performance than the server based. Their performance in terms of speed is good. They are more reliable than server-based routers. When it comes to efficacy against attacks they are better than the server-based routing solutions.

Term

 

 

 

What are the disadvantages of dedicated hardware routers?

Definition

 

 

 

The limitation with these is that they have only limited features as compared to their costs. They are not pocket friendly. They need specialized and trained staff to manage them.

Term

 

 

 

How do the features of a router determine its capabilities?

Definition

 

 

Where a basic router may route only one protocol between two network interfaces of the same type; an advanced router may act as a gateway between two networks and two protocols. Features like firewall services, remote access functionality, security and authentication may also be provided.

Term

 

 

Network switch

Definition

 

 

 

a computer networking device that connects devices together on a computer network.

Term

 

 

 

Ethernet switch

Definition

 

 

A "central hub" wired to every computer and network device in an Ethernet.

Term

 

 

 

layer 2 switch

Definition

 

 

 

A network bridge, operating at the data link layer, may interconnect a small number of devices in a home or the office.

Term

 

 

 

 

layer 1 switch

Definition

 

 

 

A network hub, or a repeater, is a simple network device that does not manage any of the traffic coming through it.

Term

 

 

 

layer 3 switch

Definition

 

 

 

Within the confines of the Ethernet physical layer, a layer-3 switch can perform some or all of the functions normally performed by a router.

Term

 

 

 

layer 4 switch

Definition

 

 

 

While the exact meaning of the term layer-4 switch is vendor-dependent, it almost always starts with a capability for network address translation, but then adds some type of load distribution based on TCP sessions.[20]

Term

 

 

 

layer 7 switch

Definition

 

 

 

Layer-7 switches may distribute the load based on uniform resource locators (URLs), or by using some installation-specific technique to recognize application-level transactions.

Term

 

 

segmentation

Definition

 

 

Involves the use of a bridge or a switch (or a router) to split a larger collision domain into smaller ones in order to reduce collision probability, and to improve overall network throughput.

Term

 

 

 

unmanaged switches

Definition

 

 

 

have no configuration interface or options

Term

 

 

 

managed switches

Definition

 

 

Have one or more methods to modify the operation of the switch.

Term

 

 

 

smart switches

Definition

 

 

Managed switches with a limited set of management features.

Term

 

 

 

enterprise managed switches

Definition

 

 

 

Have a full set of management features, including CLI, SNMP agent, and web interface.

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