Chap5

Question 1

8 network topologies

Answer 1

1. WMN (wireless mesh network)
   - cinnects multiple wireless access points, like wifi in the building
2. MAN (metropolitan area network) – A network that spans a city. Within
3. WAN (wide area network) – A network that spans a large geographical area. ex: International network / internet
4. VPN (virtual private network) – A method of connecting to a network such as a company network across an unsecure network.
   - available movies sa us than ph, to hide ur IP address
   5l PAN (personal area network
5. LAN (local area network)
   - LImited geographical area
6. VLAN (virtual Lan)- extends
7. WLAN - connects multiple WIRELESS DEVIce

Question 2

History ng Connection Technologies3

Answer 2

1. analog Telephone access (dialup) // uses an analoh modem to call other modem
2. ISDN (Intergrated Service Digital Netw) / carry voise video n data
   3 Broadband // uses diffent frequencies to send multiple signals over the media

Question 3

Tetheing is also known as

Answer 3

Hotspot

Question 4

Sender pag nagsend, dapat babalik sayo na nareceive m ung data

Answer 4

Transpot Layer Protocol

Question 5

UDP (User Diagram Protocol)

Answer 5

Fast
Low overgead
Does not require acknowledgements

Question 6

CELLULAR GENERATIONS 8 Sila

Answer 6

1-2G // 1st generation
, was analog calls only, sa 2 G Introduced digital voice, conference calls n caller ID w speeds less than 9.6Kbs

2.5G // supports web browsing short audio , video clips

3G // video streaming music speed at 2mbs

3.5 G// high wualitys lhat
KULANG

Question 7

Zig bee Vs Z-Wave

Answer 7

Zigbee
Requires a ZigBee Coordinator to manage client devices connected in a wireless mesh network.
Devices commonly managed from a cell phone app
IEEE 802.15.4 standard
868 MHz to 2.4 GHz range up to 20 meters, 65,000 devices, and data speeds up to 250 kb/s

Z-Wave
Proprietary standard, but public version available
232 devices can connect to a wireless mesh network with data speeds up to 100 k

Question 8

DHCP Server

Answer 8

Used by ISPS ADDRESSING INFORMATION TO HOST.

// request, then will proviede u w address
The client must contact the DHCP server periodically to extend the lease.

Question 9

DNS Server

Answer 9

Translates domain names such as cisco to IP Address
Has 5 steps
1. KULANG

Question 10

Also called extenders because they regenerate the signal so it can be sent further.

Answer 10

Repeaters

Question 11

Receives data on one port and sends to all other ports.

Answer 11

Hub , to all devices connected to it

Question 12

Divides a network into two or more segments and tracks which device is on each segment.

Answer 12

Bridge

Question 13

Switch

Answer 13

Records MAC addresses for each dev.

Question 14

UTM

Answer 14

Universal Threat Management (UTM) is an all-in-one security appliance

Avoid spyware n filtering

Question 15

Network tap - to capture signa.
2 tupes

Answer 15

Active TAP-This type of TAP regenerates the signal. Due to the complexity of gigabit signaling, a passive TAP is unable to be used. Also, some fiber links may become corrupt using an optical splitter, so an active TAP is used instead.
cab
Passive test access point (TAP)-This type of TAP is a box with network ports to carry signals in and out. Inside, an inductor or optical splitter is used to copy the signal and send it out a monitor port. The monitor port receives all the traffic from the cable.