Chapter 2 - Network Infrastructure and Documentation

Rack ears

If you're shopping for a rack switch, what component on the switch tells you it can be mounted to a rack?

Crosstalk

Increases the possibility of transmission interference between wires, a phenomenon.

installation

New software, such as CRM (customer relationship management) software for sales reps or a financial software package for accountants, must be installed on the relevant devices and incorporated with network resources.

IDF (Intermediate Distribution Frame)

Provides an intermediate connection between the MDF and end-user equipment on each floor and in each building.

ROM

Read Only Memory

RMA

Returned Materials Authorization

RIP

Routing Information Protocol

TIA/EIA

Telecommunications Industry Association/Electronics Industries Alliance - Company responsible for the TIA/EIA-568 commercial building wiring standard.

Wiring schematic

What type of diagram shows a graphical representation of a network's wired infrastructure?

Termination

When terminating twisted-pair cabling, don't leave more than 1 inch of exposed (stripped) cable before a twisted-pair termination.

A password manager

Which of these is considered a secure place to store a list of documented net- work passwords?

Patch cable

You need to connect a new network printer to a nearby wall jack. What kind of cable should you use?

Zenmap, Command Prompt, and PowerShell

You've decided to run an Nmap scan on your network. What app could you open to perform this task? Choose all that apply.

network diagrams

graphical representations of a networks devices and connections

Plenum cabling

if you run cable in the plenum the area above the ceiling tile or below the subflooring make sure that cable sheath is plenum-rated and consult with local electric installation codes to be certain

Cable Trays

used to carry cabling throughout the building.

Horizontal Cabling

—This is the cabling that connects workstations to the closest data room and to switches housed in the room. The maximum allowable distance for it is 100 m.

Demarc (Demarcation Point)

A device that marks where a telecommunications service provider's network ends and the organization's network begins

Nmap

A network utility designed to scan a network and create a map. Frequently used as a vulnerability scanner.

Patch Cable

A relatively short section (usually between 3 and 25 feet) of cabling with connectors on both ends.

Entrance facility

A technician from your ISP has arrived to help you troubleshoot a weak WAN connection. To what location do you take her?

KVM (Keyboard, Video, and Mouse) switch

Connects to a single console to provide a central control portal for all devices on a rack

MDF (Main Distribution Frame or Main Distribution Facility)

aka Main cross connect, the first point of interconnection between an organization's LAN or WAN and a service provider's facility

Upgrade

A major change to a software package that enhances the functionality and features of the software, while also correcting bugs and vulnerabilities.

UTP (Unshielded Twisted Pair)

A type of copper-based cable that consists of one or more insulated twisted-pair wires encased in a plastic sheath.

Wiring Schematic

A(n) ____ is a graphical representation of a network's wired infrastructure.

110 Block

Punch-down block used on data networks.

Entrance Facility

The location where an incoming network service (whether phone, Internet, or long-distance service) enters a building and connects with the building's backbone cabling.

List all components on the network.

What is the first step of inventory management?

RFP (Request for Proposal)

A document that is provided to vendors to ask them to propose hardware and system software that will meet the requirements of your new system.

PVC (polyvinyl chloride)

A flame-resistant material used to manufacture cable jackets because it produces less smoke than regular cable coating materials, which is made from a cheaper plastic that is toxic when burned.

MSA (Master Service Agreement)

A contract that defines the terms of future contracts between parties, such as payment terms or arbitration arrangements.

patch

A correction, improvement, or enhancement to software. It corrects a bug, closes a vulnerability, or adds minor enhancements to only part of the software, leaving most of the code untouched.

Look at whether the device is located on the ISP's side of the demarc.

A transceiver was recently damaged by a lightning strike during a storm. How might you decide whether the ISP is responsible for replacing this device, or whether your company must foot the bill?

Avoid EMI

Install 3ft away from fluorescent lights or other sources of EMI

VoIP (Voice over Internet Protocol)

Is the use of any network (either public or private) to carry voice signals using TCP/IP protocols.

RF

Radio Frequency

RFI

Radio Frequency Interference

Rollback

The process of reverting to a previous version of software after attempting to patch or upgrade it.

fiber-optic cable

A form of cable that contains one or several glass or plastic fibers in its core and comes in two types : SMF or MMF

Racks

A large data center can contain rows of racks to hold various network equipment.

SLA (Service Level Agreement)

A legally binding contract or part of a contract that defines, in plain language and in measurable terms, the aspects of a service provided to a customer. Specific details might include contract duration, guaranteed up-time, problem management, performance benchmarks, and termination options.

STP (Shielded twisted-pair cable)

A type of copper-based cable containing twisted-pair wires that are not only individually insulated, but also surrounded by a shielding made of a metallic substance such as foil

EMI (electromagnetic interference)

A type of interference that may be caused by motors, power lines, televisions, copiers, fluorescent lights, or other sources of electrical activity.

Wiki

A website that can be edited by users. You can add files and photos, easily create links between pages, group pages by different criteria, and make choices about which users have which privileges on the site

(SOW) statement of work

Documents in detail the work that must be completed for a particular project, and includes specifics such as tasks, deliverable, standards, payment schedule, and work timeline.

MOU(Memorandum of Understanding)

Documents the intentions of two or more parties to enter into a binding agreement, or contract, and is sometimes used between an informal handshake and the legally binding signatures on con- tracts.

Patch Panel

Help keep lines organized as they run from walls to racks to network devices, and they make it easy to switch out patch cables of variable lengths when devices are moved or changed.

66 block

Older punch-down block used primarily for telephone connections.

RGB

Red, Green, Blue

RISC

Reduced Instruction Set Computer

RJ-11

Registered Jack Function 11

RJ-45

Registered Jack Function 45

RIS

Remote Installation Service

Inventory Management

The monitoring and maintaining of all the assets that make up a network.

System Life Cycle

The process of designing, implementing, and maintaining an entire network.A major part of this process is the removal and disposal of out- dated assets, and the addition of compatible, updated devices.

Patch Management

The process of monitoring the release of new patches, testing them for use on networked devices, and installing them.

Bend Radius

The radius of the maximum arc into which you can loop a cable before you will cause data transmission errors. Generally, a twisted pair cable's bend radius is equal to or greater than four times the diameter of the cable.

VoIP gateway

Which device converts signals from a campus's analog phone equipment into IP data that can travel over the Internet?

Routers, Switches, and KVM switch

Which of the following devices are you likely to find in the MDF? Choose all that apply.

MLA (Master License Agreement)

grants a license from a creator, developer, or producer, such as a software producer, to a third party for the pur- poses of marketing, sub-licensing, or distributing the product to consumers as a stand-alone product or as part of another product.

Data Room

Also called data closet, data center, equipment room, or telecommunications room, a data room is the enclosed space that holds network equipment.

Protect Cables

Avoid laying cables across the floor where it might sustain damage from rolling chairs or foot traffic.

MDF, and IDFs

There is only one -------- per network, but there can be many -------- connecting internal portions of the network.

Rack Diagrams

These drawings show the devices stacked in a rack system and are typically drawn to scale.

Patch Panel

This is a panel of data receptors which can be mounted to a wall or a rack and which provides a central termination point when many patch cables converge in a single location.

VoIP PBX (Private Branch Exchange)

This is dedicated telephone switch or virtual switching device that connects and manages calls within a private organization, and manages call connections that exit the network through a VoIP gateway.

Verify Continuity

Use a cable tester to verify that each segment of cabling you install transmits data reliably

Backbone Cabling

Consists of the cables or wireless links that provide interconnection between the entrance facility and MDF, and between the MDF and IDFs.

VoIP Gateway

Converts signals from a campus's analog phone equipment into IP Data that can travel over the internet, or which converts VoIP data from an internal IP network to travel over a phone company's analog telephone lines.