Connecting to the Internet

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

• POTS

• DSLAM

• CMTS

• ONT

Answer explanation

Yep! 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

• channel

• collision domain

• wireless LAN

Answer explanation

Right on! Different locales might have different frequency bands defined.

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

• duration field

• Sequence Control Field

• frame control field

• preamble

Answer explanation

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

WPA stands for _______.

• wifi protected address

• wireless protection augmentation

• wifi proxy access

• wired protected access

Answer explanation

You got it! 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/routers

• phones/tablets

• servers/data centres

• computers/laptops

Answer explanation

Correct

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

Which wireless security standards uses a 128-bit key?

• WPA2

• ad-hoc

• WEP

• WPA

Answer explanation

Correct

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

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

• local loop

• core network

• WAN

• demarcation point

Answer explanation

Correct

Awesome! 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?

• 5Ghz Channel

• MAC filtering

• WPA

• WEP

Answer explanation

Great work! MAC filtering only allows certain devices to connect to a network.

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

• SDSL

• DSLAM

• HDSL

• ADSL

Answer explanation

Correct

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

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

• point to point vpn

• t-carrier tech

• cable broadband

• ATM

Answer explanation

Correct

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