Cable Internet Access Can Be Described With Which Feature

A T1 consists of _____ telephone channels.

A T1 uses 24 telephone channels to send data.

The more accurate name for a cable modem is a ______.

A CMTS is the proper name for a cable modem.

A section of the radio spectrum that's been agreed upon to be used for certain communications is known as a _______.

Frequency Band

Different locales might have different frequency bands defined.

A traditional wireless network involving access points that all have wired connections is known as a(n) _______.

A WLAN is the term for a traditional wireless network.

WPA stands for _______.

WPA is an update to WEP that's much more secure.

A point-to-point virtual private network (VPN) utilizes this type of device at each point.

Firewalls are devices that can act as a VPN endpoint.

A wireless network does not benefit like a wired network does, when it comes to collision reduction. Which device reduces collisions on a wired network?

Switches remember which computers are on which physical interfaces, so traffic is only sent to the intended node.

Which technology is NOT a form of broadband?

ISDN is an older analog dial-up method that is faster than traditional dial-up.

Which connection technology uses what is known as a CMTS?

The Cable Modem Termination System (CMTS) connects lots of different cable connections to an ISPs core network.

An IT suspects that an unauthorized device is connected to a wireless network. This is a result of passkey sharing on a device brought from home. What is put in place to stop such activity?

MAC filtering allows or disallows a device to connect to a network, based on a hardware address.

Cat5 and Cat6 cabling refer to which reference model layer?

Physical media, like cables, provide connectivity and are associated with the physical layer.

What two benefits are a result of configuring a wireless mesh network?

Range increases when access points are configured in a mesh where all points are connected to each other.

Performance increases when access points are configured in a mesh where all points are connected to each other.

A modulator/demodulator is better known as a _____

Modem stands for modulator/demodulator.

FTTP stands for _______

Fiber To The Premises

FTTP is a technology that uses fiber to bring an internet connection to a building or home.

The original and flawed wireless security protocol is known as _____

WEP is not very secure and has been mostly phased out.

WPA stands for _______

WPA is an update to WEP that's much more secure.

Devices that connect to the Internet are often categorized into silos. Which silo controls network traffic?

Switches and routers are two of many devices that control network connectivity and traffic.

Cable Internet access can be described with which feature?

Shared bandwidth means multiple users use the same connection. With cable Internet, many users (like in a city block) use the same line back to the ISP.

An 802.11 frame contains a number of fields. Which field describes the version of 802.11 that is being used?

The frame control field contains a number of subfields to describe the frame and processing. This includes the version of 802.11 being used.

Which form of Digital Subscriber Line (DSL) features differing upload and download speeds?

Asymmetric Digital Subscriber Line (ADSL) connections feature different speeds for outbound and incoming data.

Which Fiber implementation is often referred to as Fiber To The Premises (FTTP)?

Fiber To The Home (FTTH)

With FTTH, fiber is actually run to each individual residence in a neighborhood.

Fiber to the Building (FTTB)

FTTB is a setup where fiber technologies are used for data delivery to an individual building.

Cellular network towers are configured in such a way so that they avoid what type of problem?

Cell towers are similar to wireless access points. Configuration of a tower includes avoiding overlap issues.

Cat5 and Cat6 cabling refer to which reference model layer?

Physical media, like cables, provide connectivity and are associated with the physical layer.

The rate at which a dial-up connection can send data across a telephone wire is known as a _____ rate.

baud

A baud rate is equivalent to bits per second.

ONT stands for ______

Optical Network Terminator

WPA2 uses a key that's ____ bits long.

256-bit keys are pretty difficult to break.

What connection type is known as "always on"?

Broadband is known as an "always on" technology. This is because a connection does not have to first be initiated.

Similar to Wireless networks, cellular networks use band configuration to avoid what problem?

Overlap

Cell towers are configured to use bands that don't overlap, just like WiFi uses different channels.

Which solution eliminates the need for dedicated high-speed WAN connections between sites?

A point-to-point VPN utilizes the Internet to create a more private high-speed link without the need for dedicated WAN technology.

Which technology is used as a demarcation point for fiber optics?

An optical network terminator is similar to a modem and acts as a demarc for a fiber optic line.

Which value once represented a very popular modem baud rate that was used with dial-up connections?

14400

While not commonly used today, dial-up still exists. 14400 (14.4k) baud was a popular baud (speed) rate.

The more accurate name for a modem used for a DSL connection is a ______

A DSLAM is the proper name for a DSL modem.

Digital Subscriber Line (DSL) is the only Internet connection option available for a small office in the middle of nowhere. Which type will provide speeds above 1.544 megabits per second?

High Bit-rate Digital Subscriber Line (HDSL)

While not commonly used today, dial-up still exists. 14400 (14.4k) baud was a popular baud (speed) rate.

In which wireless configuration type do nodes communicate directly with each other, rather than with an access point?

Ad-hoc

In an ad-hoc network, all nodes communicate and transmit directly to each other.

What are two characteristics of a 5Ghz band wireless network?

Short range

Fast speeds

A wireless network that operates with a 5Ghz frequency has a much shorter range than that of a 2.4Ghz network.

Television broadcasts were originally delivered by using which technology?

Wireless

The more accurate name for a modem used for a DSL connection is a ______.

A DSLAM is the proper name for a DSL modem.

An Internet connection problem for customers is found to be outside a carrier's regional office. As a result, which area needs troubleshooting?

A local loop is the portion of a network between a customer's demarcation point and the carrier or ISP facility.

Which configuration is considered to be a common way to increase security in a wireless network?

MAC filtering only allows certain devices to connect to a network.

Another name for cellular networking is ______ networking.

Mobile

Depending on where you're from, one term or the other may be more common.

Modems communicate data by using which method?

Audible wavelengths

Phone lines were developed to transmit sound. Modems transfer data through audible wavelengths.

When it comes to wireless channels, which channels never overlap?

1

11

Some channels are close together and may cause an overlap. Channels 1, 6, and 11 are far enough apart to never overlap.

A T3 consists of _____ T1 lines.

The first field in an 802.11 header is known as a ________.

The Frame Control Field specifies things like what version of 802.11 is in use.

Which wireless security standards uses a 128-bit key?

WiFi Protected Access (WPA)

WPA replaced WEP. It uses a 128-bit key making it harder to crack.

Which of the following is NOT a Wide Area Network (WAN) connection type?

Digital Subscriber Line (DSL)

Fiber optic cable from a service provider can be delivered directly to the end user. Which implementation delivers data to a cabinet for distribution?

FTTN

Fiber To The Neighborhood (FTTN) defines fiber technology used to deliver data to a single physical cabinet that serves a population.

How many simultaneous phone conversations can a T1 line carry?

24

A T1 is a dedicated communication line that can carry both data and voice.