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Flashcards in cct4 Deck (237)
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181

How many ports are represented on a hexagonal tap symbol.

8

182

How is tap value determined?

The sum of the directional coupler tap loss plus the loss of the splitter(s)

183

What is the lowest tap value?

4

184

These are low value taps that feed the internal splitter(s) directly without the use of a directional coupler

Terminating tap

185

When low frequency signals are not attenuated as much as high frequency signals in coax cable, it can result in the level of lower frequency signals exceeding the level of the higher frequency signals. What is this called?

reverse tilt

186

What device is used to compensate for reverse tilt?

In-Line Equalizer

187

This device can eliminate the problem of a modem that is connected to a low value tap from overloading the upstream return amplifier.

In-Line Conditioner

188

This is the medium that is used to transmit our signals from the headend to the customer.

coaxial cable

189

Four components of coaxial cable

Jacket, Outer Conductor (Sheath), Dielectric, and Center Conductor

190

What are the three basic parts of a fiber link?

the fiber cable, the transmitter, and the receiver

191

PBX

Private Branch Exchange

192

4 Common types of Toll-fraud

1. Unauthorized Voicemail access2. Unauthorized Call Forward and Transfer3. Direct Inward System Access (DISA)4. Social Engineering

193

DISA

Direct Inward System Access

194

This occurs when perpetrators access your voicemail illegally by determining your access password, and then place outbound calls from the system.

Unauthorized Voicemail Access

195

If a PBX voicemail system is breached, often Call Forward or Call Transfer can be invoked by a criminal to send inbound calls to an unauthorized destination. What is this process called?

Unauthorized Call Forward and Transfer

196

This telephone feature allows an outside caller to dial directly into the telephone system and to access all the system's features and functions.

Direct Inward System Access (DISA)

197

It is the most common way perpetrators commit Toll-fraud

Direct Inward System Access (DISA)

198

Changing all of your phone system factory default passwords to prevent fraud should be don how often?

60-120 days is recommended

199

Asking Comcast or PBX maintenance provider to turn off international calling functionality if not needed will help prevent what?

International Toll-Fraud

200

Installing intrusion detection alarms for the PBX room and Providing remote access only to those that need are are two forms of what?

PBX lock-down activities (Fraud Prevention Techniques)

201

Doing a PBX audit with PBX vendor and having a phone system security audit performed by a third party are examples of what?

Fraud prevention Techniques

202

What site do business class customers go to to manage services online?

business.comcast.com/myaccount

203

Where can a comprehensive Help & Support Library be located?

business.comcast.com/elp

204

What is the money back guarantee for Business VoiceEdge or Business Trunks?

60-day money back guarantee

205

Where can customers go to learn about the Comcast Business Promise?

business.comcast.com/promise

206

At what point in the installation process can a customer register an account online?

As soon as installation is scheduled.

207

What are the benefits of a customer registering their account online before the installation is completed?

1. set up billing preferences2. get installation text reminders3.access to the Upware marketplace

208

Why would a non-customer activate an account with Comcast Business Internet?

to access the Upware marketplace

209

What Business Internet services do not include wifi?

Internet-only Starter, Hospitality Internet or Ethernet services

210

DPC3939B

Model Number for the Business Wireless Gateway