Midterm Review

Question 1

Bandwidth

Answer 1

The amount of data that can flow from one place to another in a given amount of time measured in the number of bits that can be sent across in a second (theoretical).

Question 2

Throughput

Answer 2

The actual measure of the transfer of bits across the media over a given period of time.

Question 3

Peer-To-Peer

Answer 3

Network in which a host can be a client and a server for other hosts.

Question 4

3 Parts of IP configuration that must be correct

Answer 4

Address, subnet mask, default gateway

Question 5

Types of Media

Answer 5

Copper wires
Glass or plastic fibers (fiber-optic)
Wireless transmission

Question 6

Twisted-Pair (TP)

Answer 6

Copper cable and the most common type of network cabling.

Question 7

Coaxial Cable

Answer 7

Copper/aluminum and used to provide cable television service and for satellite communication systems.

Question 8

Fiber-optic

Answer 8

Glass/plastic and have very high bandwidth. Used in backbone networks, large enterprise environments, and large data centers.

Question 9

Interference

Answer 9

Copper cable is sensitive to EMI and crosstalk.

Question 10

Wiring Schemes

Answer 10

T568A and T568B.

Question 11

3 Elements of Communication

Answer 11

Source, destination, transmission medium

Question 12

Protocol Model

Answer 12

TCP/IP Model - details the protocols to be used at each layer

Question 13

Reference Model

Answer 13

OSI Model - serves as an outline of rules for how protocols can be used to allow communication between computers.

Question 14

Encapsulation

Answer 14

The process of placing one message inside another message format

Question 15

De-encapsulation

Answer 15

Taking a message out of the format it is inside

Question 16

Ethernet Frame (L-R)

Answer 16

Preamble, Frame Delimiter, Destination MAC, Source MAC, Type/Length, Header and Data, Frame Check Sequence

Question 17

MAC Address Table

Answer 17

Relates ports to host MAC addresses attached to them.

Question 18

ARP

Answer 18

IPv4 protocol used to discover the MAC address related to the IP address of any host on the local network. IPv6 uses Neighbor Discovery.

Question 19

LAN

Answer 19

Local network /group of interconnected local networks under the same administrative control.

Question 20

Class A

Answer 20

0 - 127.0.0.0

Question 21

Class B

Answer 21

128 - 191.255.0.0

Question 22

Class C

Answer 22

192 - 223.255.255.0

Question 23

NAT

Answer 23

Network Address Translation - private into unique internet-routable public addresses for outgoing packets (reversed for incoming).

Question 24

Characteristics of IP Protocol

Answer 24

Connectionless
Best Effort
Media Independent

Question 25

4 Criteria for choosing network media

Answer 25

Distance
Environment
Speed
Cost

Question 26

Maximum size of an ethernet frame

Answer 26

1518 bytes

Question 27

Standard

Answer 27

Set of rules that define how a network operates