WAN Technologies

Question 1

• When data is sent across a network, it is not sent as one large piece. The data is actually divided into smaller pieces or data packets, and then they are sent individually.
• These data packets are sent using two different methods:

Answer 1

packet switching and circuit switching.

Question 2

(packet switching) - In packet switching, the data packets take _________ routes to their destination, and once all the data packets reach their destination, they are recompiled into the original _______.
- This method of communication is also known as ____________.

Answer 2

different, message, connectionless

Question 3

(packet switching) The _______ mostly uses packet switching technology.

Answer 3

internet

Question 4

(circuit switching) circuit switching, all the data is sent along the same __________ _____.

Answer 4

dedicated route

Question 5

(circuit switching) A good example of circuit switching would be _________ _____.

Answer 5

telephone lines

Question 6

(ISDN) ISDN stands for _________ ________ _______ ________.
- This is an international standard for digital transmission over ordinary telephone lines.

Answer 6

Integrated, Services, Digital, Network

Question 7

(ISDN) In order to use ISDN, users had to ______ ISDN modems.

Answer 7

install

Question 8

(ISDN) This was a significant improvement in ______ over the standard modem because a standard modem sends data at a maximum speed of __ kbps

Answer 8

speed, 56 kbps

Question 9

(ISDN) ISDN sends data at ___ kbps

Answer 9

128 kbps

Question 10

(ISDN) ISDN never really caught on because of the faster speeds of ___ and _____.

Answer 10

DSL, cable

Question 11

T1 stands for?

Answer 11

T Carrier Level 1

Question 12

(T1) T1 lines are probably the most commonly used _________ _______ for businesses today.

Answer 12

internet service

Question 13

(T1) It’s a dedicated connection that supports data rates of _.___ megabits per second.

Answer 13

1.544 mbps

Question 14

(T1) A T1 line consists of __ individual channels that each carries a rate of __ kbps. Each of these channels can carry ____ or voice traffic.

Answer 14

24, 64, data

Question 15

T3 stands for?

Answer 15

T carrier level 3

Question 16

(T3) A T3 line is a ____-_____ internet connection

Answer 16

high, speed

Question 17

(T3) Supports rates of __ megabits per second.

Answer 17

43 mbps

Question 18

(T3) It consists of ___ individual channels, and each of these carries a rate of __ kbps.

Answer 18

672, 64 kbps

Question 19

(T3) T3 lines are mainly used by internet service providers that connect directly to the ________ of the _________.

Answer 19

backbone, internet

Question 20

(E1) An E1 line is similar to a T1 line, but an E1 line is the format that is used in Europe for _______ ___________.

Answer 20

digital, transmission

Question 21

(E1) The speed is __ megabits per second and consists of __ channels that carry __ kbps of data.

Answer 21

2 mbps, 32, 64 kbps

Question 22

(E3) An E3 line is the ________ equivalent of a T3 line. It has a speed of __ megabits per second and has _____ channels than a T3 line.

Answer 22

European, 34 mbps, fewer

Question 23

(OCx) OCx stands for _______ ______.

Answer 23

Optical, Carrier

Question 24

(OCx) These are levels that describe the speed of networks that can be carried on SONET, which stands for ___________ ______ ________.

Answer 24

Synchronous, Optical, Network

Question 25

(OCx) It’s a fiber optic technology that delivers voice, data, and video at ____ ______.

Answer 25

high, speeds

Question 26

(OCx) The OC levels are calculated by multiples of __.__ megabits per second.

Answer 26

51.84 mbps