Chapter 3 Fundamentals Of WANs And IP Routing Flashcards Preview

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Flashcards in Chapter 3 Fundamentals Of WANs And IP Routing Deck (13)
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1
Q

WAN

A

Wide Area Network. it is a collection of LANs or how LANs communicate

2
Q

Leased line

A

A serial communication circuit between two points provided by a service provider, typically a telephone company or Telco.

3
Q

HDLC

A

HDLC. High level data link control. This is a data link protocol for leased lines. They have a similar header to ethernet.

Flag - list recognizable bit pattern so that the receiving knows realize that a new frame is arriving.

Address - destination device

Control - legacy ( not really used

Type - ipv4 or 6

FCS - error detection

4
Q

T1, speed

A

This is a leased line

1.544 Mbps

5
Q

PPP

A

Point to point protocol. This is a data link protocol for leased lines.

6
Q

MPLS

A

Multiprotocol label switching. It is a routine technique used by telecommunications networks that directs data from one node to the next based on short path labels.

7
Q

PoP

A

Point of presence is where your network connects to the service providers.

8
Q

Ethernet emulation

A

A term emphasizing that the link is not a literal ethernet link from end to end.

9
Q

Eompls

A

Ethernet over multiprotocol labeling service. This will use the 802.3 Ethernet protocol

10
Q

ARP

A

Address Resolution Protocol. ARP dynamically learns the data link address(mac address) of an IP host connected to a LAN.

11
Q

DNS

A

Domain Name Systems. Translates IP addresses into hostnames.

12
Q

ICMP

A

Internet control method protocol. Is the protocol for the ping command which sends an ICMP echo to an IP address to test connectivity. If it receives an echo reply back then it was successful.

13
Q

Unicast address

A

An IP address that represents a single interface.