L2: Explaining Properties of Network Traffic

Question 1

What type of media is bounded?

Answer 1

Cabled Media

Question 2

What type of media is unbounded?

Answer 2

Wireless Media

Question 3

What is bandwidth?

Answer 3

Range of available frequencies

Question 4

What unit of measure does Bandwidth use?

Answer 4

Hertz (Hz)

Question 5

What kind of signaling is Baseband Transmission?

Answer 5

Digital Signaling

Question 6

What kind of signaling is Broadband Transmission?

Answer 6

Analog Signaling

Question 7

Cycles per second is measured in what?

Answer 7

Hertz (Hz)

Question 8

What is a loss of signal strength called?

Answer 8

Attenuation

Question 9

What is stray or unwanted signals that interfere with a signal?

Answer 9

Noise

Question 10

What kind of cable uses is a low voltage electrical circuit and is subject to high attenuation and interference?

Answer 10

Copper Cable

Question 11

What are two types of Copper Cables?

Answer 11

Twisted Pair (CAT Cables) and Coaxial Cables (Coax)

Question 12

What kind of cable uses light signals and is less susceptible to attenuation and interference?

Answer 12

Fiber Optic Cables

Question 13

What kind of transmission used Radio Frequency?

Answer 13

Wireless Radio

Question 14

What are the two frequency bands used for Wireless transmissions?

Answer 14

2.4 GHz and 5 GHz

Question 15

What technology only allows one device to to transmit data at a time?

Answer 15

Half-Duplex Technology

Question 16

Which type of Carrier Sense Multiple Access (CSMA) tries to avoid data collisions by transmitting data when the “line” is clear?

Answer 16

CSMA/CA (with Collision Avoidance)

Question 17

Which type of Carrier Sense Multiple Access (CSMA) sends data when the “line” seems to be clear, but will retransmit the data when a collision occurs?

Answer 17

CSMA/CD (with Collision Detection)

Question 18

What type of transmission sends data from one node to all nodes on a network?

Answer 18

Broadcast

Question 19

What type of transmission sends data from one node to many nodes on a network?

Answer 19

Multicast

Question 20

What type of transmission sends data from one node to one node on a network?

Answer 20

Unicast

Question 21

What device/OSI Layer establishes Broadcast Domain Boundaries?

Answer 21

Routers (Layer 3)

Question 22

How many MAC addresses are in a Ethernet Frame Format and what are they called?

Answer 22

Two (Destination MAC and Source MAC)

Question 23

How many bits(bytes) are in a MAC address?

Answer 23

48-bits (6 bytes)

Question 24

What is the Payload of the Ethernet Frame Format?

Answer 24

Data

Question 25

What does the Frame Check Sequence (FCS) of the Ethernet Frame Format do?

Answer 25

Ensures the data is valid, and will drop the data if an error occurs

Question 26

What is Maximum Transmission Unit (MTU) size of a Payload? (in bytes)

Answer 26

1500 bytes

Question 27

What is a frame called if the payload exceed 1500 bytes (the Maximum Transmission Unit)?

Answer 27

Jumbo Frame