Chapter 12: Advanced Networking Devices Flashcards

1
Q

Dedicated Server

A

A computer that only acts as a server, never a client.

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2
Q

Peer-to-Peer network

A

Any system can act as a server, a client, or both, depending on how you configure them.

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3
Q

Peer-to-Peer Applications (P2P)

A

Act as both client and server (uTorrent and shit)

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4
Q

Virtual Private Network (VPN)

A
  • A network configuration that enables a remote user to access a private network via the Internet.
  • Use tunneling
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5
Q

Point-to-Point Tunneling Protocol (PPTP)

A
  • An advanced version of PPP that handles VPNs.

- Used on Windows.

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6
Q

Routing and Remote Access Service (RRAS)

A

A special remote access server program on which a PPTP endpoint is placed in Microsoft networks.

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7
Q

Web browser performance on a VPN

A

Hella fucking slower

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8
Q

Host-to-Site

A

Type of VPN connection where a host logs into a remote network as if it were any other local resource of that network.

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9
Q

Layer 2 Tunneling Protocol (L2TP)

A

A VPN protocol that uses IPsec

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10
Q

VPN Concentrator

A

The new endpoint of the local LAN in L2TP

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11
Q

Host-to-Host

A

Type of VPN connection in which a single host establishes a link with a remote, single host.

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12
Q

Site-to-Site

A

A type of VPN connection using two Cisco VPN concentrators to connect two separate LANs permanently.

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13
Q

SSL VPN

A

A type of VPN in which clients connect to the VPN server through a web browser, with the traffic secured by SSL

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14
Q

Portal SSL VPN

A

A client accesses the VPN and is presented with a secure web page. (Like myucsc and shit)

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15
Q

Tunnel SSL VPN

A

The client web browser runs some kind of active control, such as Java or Flash, and gains much greater access to the network.

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16
Q

Managed Switch

A

Switches that have extra programming and logic to handle switching, security, and many other functions

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17
Q

Console Port

A

Connection jack in a switch used to connect a computer that will manage the switch.

18
Q

Out-of-Band Management

A

Method to connect to and administer a network device. An example is connecting a computer to the console port of a switch.

19
Q

VLAN

A

Enables a single switch to support multiple logical broadcast domains

20
Q

Trunking

A

The process of transferring VLAN traffic between switches

21
Q

Trunk Port

A

A port on a switch configured to carry all traffic between switches in a LAN

22
Q

Native VLAN

A

The specified VLAN designation that will be assigned to all untagged frames entering a trunk port in a switch

23
Q

IEEE 802.1Q

A

Trunk standard that enables you to connect switches from different manufacturers

24
Q

VLAN Trunking Protocol (VTP)

A

Cisco proprietary protocol to automate the updating of multiple VLAN switches.

25
Q

3 states of VTP

A

1) server
2) client
3) transparent: tells it not to update

26
Q

DHCP Relay

A

A router process that allows DHCP communications to cross from one network to another.

27
Q

IP Helper

A

Command used in Cisco switches and routers to enable, disable, and manage internetwork forwarding of certain protocols.

28
Q

Multilayer Switch

A

Switch that works on multiple layers of the OSI model.

29
Q

Load Balancing

A

The process of taking several servers and making them look like a single server, for purposes of spreading shit out.

30
Q

Round Robin DNS

A

Assigning multiple IPs to the same FQDN to share the load of DNS requests

31
Q

Quality of Service (QoS)

A

Policies that prioritize traffic/bandwidth based on certain rules.

32
Q

Traffic Shaping

A

Controlling the flow of packets into or out of the network according to the type of packet or other rules.

33
Q

Shapers

A

Network devices that can implement traffic shaping

34
Q

Port Bonding

A

The logical joining of multiple redundant ports and links between two network devices. Basically to improve performance.

35
Q

Link Aggregation Control Protocol (LACP)

A

IEEE specification of certain features and options to automate the negotiation, management, load balancing, and failure modes of aggregated ports.

36
Q

Intrusion Detection System (IDS)

A

An application that inspects packets looking for intrusions. Finds the intrusions after they have already hit.

37
Q

Network-Based IDS (NIDS)

A
  • Multiple sensors placed around the network that report to a central app that reads a signature file to detect weird stuff.
  • Signature-based IDS
38
Q

Host-Based IDS (HIDS)

A
  • Software running on individual systems that monitors for out of the ordinary events.
  • Behavior-based IDS
39
Q

Intrusion Prevention System (IPS)

A

Sits directly in the flow of network traffic to stop intrusions.

40
Q

Port Mirroring

A

Copying data from any or all physical ports on a switch to a single physical port.

41
Q

Proxy Server

A

A device that fetches Internet resources for a client without exposing that client directly to the Internet.