Ch15 Networking Flashcards
MAN
Metropolitan Area Network
PAN
Personal Area Network - ad-hoc usually between portable devices.
Bridge
Device that can either connect two LANs together or separate them into two sections.
Five Network Topologies
- Start - Devices all connected to a central point.
- Bus - Devices all connected to backbone cable with no switches or routers.
- Ring - Devices all connected to each other in a loop / ring fashion.
- Mesh - Every device connects to all devices in network.
- Hybrid
What term describes a group of computers located in a small area?
Local Area Network (LAN)
Name two devices commonly used to connect a group of computers in a LAN?
- Switch
- Wireless Access Point (WAP)
What device contains multiple hard drives and is connected directly to a network?
Network attached storage (NAS)
What device allows voice communication over IP-base networks?
VoIP
What network topology is the most common ?
Star
What network technology combines the charactersistcs of other topologies?
Hybrid
What network device moves frames of data between a source and destination based on their MAC addresses?
Switch
Cat 3 Network Data Rating
10 Mbps Networks
Cat 5 Network Data Rating
100 Mbps Networks
Cat 5e Network Data Rating
100 / 1Gbps Networks
Cat 6 Network Data Rating
100 Mbps / 1 Gbps Networks
568B Wiring Standard
Most Common
- Orange-White
- Orange
- Green-White
- Blue
- Blue-White
- Green
- Brown-White
- Brown
568A Wiring Standard
Pins 1&3 , 2&6 are switched from 568B
- Green-White
- Green
- Orange-White
- Blue
- Blue-White
- Orange
- Brown-White
8 Brown
What are the main difference between single-mode and multimode fiber optic cables?
Single-mode is used over longer distances.
Single Mode Cable Diameter is :125 Microns
Multimode Cable Diameter is 50 or 62.5 Microns
Punch down tool
Punches individual wires down into the 110 IDC clips of an RJ45 Jack
What cable tupes would be suitable for 1000 Mbps networks?
Cat 5e / 6
What type of cable would you use if you were concerned about EMI?
Shielded Twisted Pair (STP)
What type of cable can connect a computer to another computer directly?
Crossover
What cable has a core diameter of 62.5 Microns
Multimode
What cable would you use for Cable Internet?
F-Connector
Which tool would you use to test a network adapter not connected to the network?
Loopback plug.
What IP-addressed network does APIPA assign address to?
169.254.0.0
Class A Addressable IP Range (1st Octet)
1 to 126
Class B Addressable IP Range (1st Octet)
128 to 191
Class C Addressable IP Range (1st Octet)
192 - 223
Class A Private IP Range
10.0.0.0 to 10.255.255.255
Class B Private Range
172.16.0.0 - 172.31.255.255
Class C Private Range
192.168.1.1 to 192.168.255.255
Loopback Addresses for IPv4 and IPv6
IPv4: 127.0.0.1
IPv6 ::1
IPv6 Unicast Address Beginning Digit
2000
IPv6 Multicast Range
FF00::/8
FTP Port Number
21
SSH Port Number
22
Telnet Port Number
23
SMTP Port Number
Simple Mail Transport Protocol
25
DNS Port Number
Domain Name Server
53
HTTP Port Number
80
POP3 Port Number
110
IMAP Port Number
143
HTTPS Port Number
443
RDP Port Number
Remote Desktop Protocol
3389
Which protocol uses port 22
Secure Shell (SSH)
Which address needs to be configured to enable a computer access to the Internet or other networks?
Gateway Address
The IP address 128.0.0.1 would be part of whatIPv4 Class?
Class B
What technology assigns addresses on the 169.254.0.0 network?
APIPA
What type of IPv6 address is commonly assigned to client computers?
Unicast beginning with FE80::/10
You want to test the local loopback IPv6 address.
Which address would you use?
::1
Which Internet protocol would be used for streaming media?
UDP
Which port is used by the IMAP protocol?
143
Which protocol sends and receives information in an encrypted manner by default?
HTTPS
Which IP address can be a gateway for a computer using the IP address 10.58.64.192 and the subnet of 255.255.255.0?
10.58.64.1
A user can receive e-mail but cannot send any. Which protocol is not configured properly?
Simple Mail Transport Protocol (SMTP)
POTS
Plain Old Telephone Service - Simple landline that comes into a home allowing a person to make phone calls.
PSTN
Public Switched Telephone Network - Entire set of hardware / network that controls POTS connections.
Two Types of ISDN Services
- Basic Rate ISDN (BRI)
- Primary Rate ISDN (PRI)
BRI Specs
Basic Rate ISDN
- 128 Kbps
- Two B Equal channels at 64 Kbps each.
- Separate D Channel at 16Kbps for timing
PRI Spec
- 1.536 Mbps running on a T1 circuit.
- 23 Equal 64 Kbps B channels for data
- One 64 Kbps D channel for timing.
802.11a Data Rate / Frequency / Range Indoor / Range Outdoor
- 54 Mbps
- 5 GHz
- 35 m / 115 Ft
- 120 m / 390 Ft
802.11b Data Rate / Frequency / Range Indoor / Range Outdoor
- 11 Mbps
- 2.4 GHz
- 35 m / 115 ft
- 140 m / 460 ft
802.11g Data Rate / Frequency / Range Indoor / Range Outdoor
- 54 Mbps
- 2.4 Ghz
- 38 m / 125 ft
- 140 m / 460 ft
802.11n Data Rate / Frequency / Range Indoor / Range Outdoor
- 600 Mbps
- 5 and/or 2.4 GHz
- 70m / 230 ft
- 250 m / 820 ft
How to map a network drive in CMD
net use <drive>: \\<computer>\<share></share></computer></drive>
What internet service makes use of PSTN?
Dial-Up
What Internet service is wireless and has a range of 50 km?
WiMax
Which 802.11 version has a maximum data rate of 54 Mbps and uses the 2.4 GHz frequency range?
802.11g
What forwards an external network port to an internal IP address / port on a computer on the LAN?
Port Forwarding
What is described as the simultaneous sending and receiving of network data?
Full-duplex
What network type requires a Windows-created password to gain access to?
Homegroup
You want to connect to a share on \server1\data-share.
What should you use to accomplish this?
Net use cmd
Which tab of Internet Options would you go to if you wanted to configure a Proxy Server?
Connections
Which command erases the DNS Cache?
ipconfig /flushdns
Name the 3 Ping Commands with explanation?
ping -t // Pings host until command is stopped.
ping -n X// Pings a specific number of times defined by the value X
ping -l // pings the host but you can specify the amount of bytes per packet.
Netstat
Command that shows the network status for the local computer
NBTSTAT
displays network protocol statistics that use NetBIOS over TCP/IP connections
common use is nbtstat -a <ip></ip>
Which command will display the MAC address of a computer?
ipconfig /all
Which command will ping continuously?
ping -t
Which command will show the path of routers between your computer and a web server?
tracert
You need to map a network drive to a share named data1 on a computer named Jupiter-Server. You want to use the J: drive letter. What syntax should you use if you were to do this in a CMD environment?
net use J: \Jupiter-Server\data1
A user complains that the computer is not connecting to the network. What should you check first?
Network Cables
One computer loses connectivity. All connectors and settings appear to be correct. What tool should you use to fix the problem?
Cable tester
One of your customers no longer has access to a frequently accessed website. You ping another computer and the router on the network successfully. What should you do next?
Ping the website
A user moves a laptop from one office to another. The patch cable and the network adapter do not appear to be working properly at the new office. The cable is plugged in correctly and tests okay when checked with a patch tester. What should you do first?
Check if the port on the switch is enabled.