Miscellany And Definitions Flashcards

0
Q

Handshaking

A

The term “handshaking” is used to describe the process of one computer establishing a connection with another computer or device. The handshake is often the steps of verifying the connection, the speed, or the authorization of the computer trying to connect to it.

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1
Q

Protocol

A

A set of rules governing the format of messages that are exchanged between computers.

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2
Q

CDP is a ___ layer protocol. It shows information about what devices?

A

Data link (layer 2). Directly connected Cisco devices.

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3
Q

CSMA/CD

A

Carrier Sense Multiple Access with Collision Detection -

 Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a media access control method used most notably in local area networking using early Ethernet technology. It uses a carrier sensing scheme in which a transmitting data station detects other signals while transmitting a frame, and stops transmitting that frame, transmits a jam signal, and then waits for a random time interval before trying to resend the frame.
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4
Q

What are the two types of synchronization in the LLC sub layer of the Data Link layer?

A

Isochronous and asynchronous

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5
Q

What does MTU stand for and what is an MTU?

A

A “maximum transmission unit”:

    The maximum transmission unit (MTU) of a communications protocol of a layer is the size (in bytes) of the largest protocol data unit that the layer can pass onwards.

    If a PDU exceeds the MTU size it must be segmented and passed on in multiple pieces.
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6
Q

What is the equation for determining how many links will be needed for a full mesh topology?

A

of links required = n • (n - 1) / 2

where
n = number of sites/nodes

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7
Q

What are the three different types of user applications as regards the level of user interaction? Given example of each.

A
  • Batch applications - Low level of or no user interaction at all. eg: large file transfers with FTP, TFTP (A branch of the store reporting it’s inventory overnight)
  • Interactive applications - involve human-to-device interaction. Bandwidth is more important than it is for batch applications. eg: database update
  • Real-time applications - involve human to human interaction. Eg: Voice over IP, video. bandwidth is crucial
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8
Q

What are the three common types of network topology? Describe each.

A

Bus topology - like a gauntlet, all devices connected to one link:
. . . .
——————-
. . .

Star topology - hub and spoke; aggregation device in the middle, hosts connected directly to it.

Mesh topology - interconnected devices with redundant links. In a full mass, every device is directly connected to every other device

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9
Q

Which CDP command gives the same output as the show CDP neighbors detail command?

A

show cdp entry *

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10
Q

Start the initial configuration:

A

Router1#setup

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