Connecting to a Network and Secure Web Browsing

Flashcards about Connecting to a Network and Secure Web Browsing

Switch

Connects computers together in an Ethernet LAN using RJ-45 network ports and twisted-pair cabling.

Access Point (AP)

Creates a Wi-Fi wireless network (WLAN) between computers and mobile devices and switches communications between the wired and wireless networks.

Internet router/modem

Connects the wired and wireless network clients to the Internet via a WAN link.

Modem

Transmits frames across the WAN link.

Router

Forwards packets between the local network and the Internet.

Digital Subscriber Line (DSL)

One of the most popular SOHO Internet service types that works over an ordinary telephone line.

RJ-11

Connects the DSL modem/router to the telephone line using a cable with RJ-11 connectors.

asymmetric (ADSL)

Most residential DSL services, meaning that the uplink is slower than the downlink.

fiber optic

Faster Internet services can be provisioned using these networks.

Fiber to the Home (FTTH)

Fiber cable all the way to customer premises.

Fiber to the Curb (FTTC)

Compromise solution where the telecom provider has installed a fiber network terminating at a cabinet somewhere in a nearby street.

Very High Bit Rate DSL (VDSL)

Each residence is connected to the fiber network over the ordinary copper telephone cabling using this.

Cable

Internet connection usually provided as part of a Cable Access TV (CATV) service.

Hybrid Fiber Coax (HFC)

Networks that combine a fiber optic core network with coax links to customer premises equipment.

DOCSIS

Based on the Data Over Cable Service Interface Specification.

Dynamic Host Configuration Protocol (DHCP)

The Internet Protocol (IP) address information is usually configured by the router, using a service called the __.

areas

Satellite systems provide far bigger __ of coverage than can be achieved using other technologies.

satellite dish (antenna)

To create a satellite Internet connection, the ISP installs a __ at the customer's premises and aligns it with the orbital satellite

equator

The satellites all orbit the __, so in the northern hemisphere the dish will be pointing south.

DVB-S (Digital Video Broadcast Satellite)

The antenna is connected via coaxial cabling to a __ modem.

Cellular

__ data connections use radio transmissions but at greater range than Wi-Fi.

transmitter

A cellular phone makes a connection using the nearest available __ (cell or base station).

GSM (Global System for Mobile Communication)

__ allows subscribers to use a SIM (Subscriber Identity Module) card to use an unlocked handset with their chosen network provider.

CDMA

With __, the handset is managed by the provider not the SIM.

Wi-Fi

Radio Frequency (RF) is a means of provisioning a wireless local network using __ standard equipment.

802.11

Wireless networking is generally understood to mean the IEEE's __ standards for Wireless LANs (WLAN), also called Wi-Fi.

802.11g

__ acted as an upgrade path for 802.11g, working at 54 Mbps but also allowing support for older 802.11b clients.

802.11n

The __ standard can use either frequency band and deliver much improved data rates (nominally up to 600 Mbps).

802.11ac

The latest __ standard is now widely supported and can deliver up to 1.7 Gbps throughput at the time of writing.

LAN

To configure an access point, you connect a PC or laptop to one of the __ ports on the SOHO router.

admin

Use the System page to choose a new __ password.

SSID

__ (Service Set ID)—a name for the WLAN.

encryption

To prevent snooping, you should enable __ on the wireless network.

Encryption

__ scrambles the messages being sent over the WLAN so that anyone intercepting them is not able to capture any valuable information.

encryption

An __ system consists of a cipher, which is the process used to scramble the message, and a key.

WEP

__ (Wired Equivalent Privacy)—this is an older standard.

Wi-Fi Protected Access (WPA)

__ fixes most of the security problems with WEP.

RC4 (Rivest Cipher)

WPA uses the same weak __ cipher as WEP but adds a mechanism called the Temporal Key Integrity Protocol (TKIP) to make it stronger.

AES (Advanced Encryption Standard)

The main difference to WPA is the use of the __ cipher for encryption.

Pre-Shared Key (PSK)

On a SOHO network, you would also generate a __ using a wireless password.

open authentication

Selecting __ means that the client is not required to authenticate.

network status

To connect a Windows computer to a wireless network, click the __ icon in the notification area.

Dynamic Rate Switching/Selection (DRS)

Each station determines an appropriate data rate based on the quality of the signal using a mechanism called __.

flood wired

An office building is likely to be __ with cabling so that there are network ports at every desk.

20

While the switch in a SOHO Internet router usually provides four ports, a single enterprise switch will support __ ports or more.

Virtual LAN (VLAN)

The ports are divided into groups using a technology called __ and each VLAN is associated with a different subnet.

Ethernet

What device is used to connect computers together in an __ network?

frequency

What is the latest Wi-Fi standard and which __ band(s) does it use?

network

In Lab 17, you will verify the __ connection between your computer and your Internet router.

open

Explain risks of using __ Internet access methods.

Securing

__ devices (Host firewall, Safe browsing practices)