NT1210 Mid-Term

What network topology has the inherent weakness of a single point of failure
The Star physical network
Define “networking standard”
The details of what a networking topology does and how it does it
“De facto standards”
No particular standards, they are established as a matter of practice
About how many bytes are in a kilobyte (KB)
1000 bytes
Convert to decimal “00101011”
A single hexadecimal digit is equivalent to ______ binary digits
How are “Voice Communications” converted to digital signals
By being broken into very small samples, and then binary values are assigned to them
How are “video files compressed”
Taking a standard video and storing it in a smaller video file
What part identifies the protocol being used
The internet core comprises of
Many separate networks, some small some large
What is designed to specifically manage computer peripheral devices
Device driver
Why is the TCP/IP model divided into layers
To make it easier to understand how networks work, write protocols for networks, and to create standards for networks
Why is the TCP/IP considered an “open” network model
It is not owed by any specific organization and shares details of how it works with all
The function of a Routers in networking is to
Move data between separate LAN’s, often by linking them to WAN lines in a network
What is “Encapsulation”
A way to address data to cross over any type of network link
In TCP/IP networks, each devices needs neither an _________or an __________ to be able to transmit or recevie data. This is handled simply by the NIC Card
IP address or an MAC address
The address is an example of
An IP Address
Define The Physical Layer of TCP/IP model
Anything that is used to transmit bits over a single physical connection
What is the benefit of having the Wi-Fi Alliance’s input on how wireless devices act
Because wireless devices from different vendors are more likely to be interoperable
Frames are associated with what layer in the TCP/IP and OSI model
Data link layer
LAN’s and WAN’s do NOT differ on the means they use to send data. What is three ways the send data
Electricity, light, and RF
Why is it important to understand alternating current when learning about networks
AC signal changes over time, which gives standard groups more options for how to encode data using electricity
Full duplex transmits and receives simultaneously. There are 4 wires how do they work
one pair of wires for receiving and another pair for transmitting
To Attenuate when describing data signals means _______
Signal fade
Name the connector for UTP network cabling
802.11g is considered
Wireless LAN topology/ standard
Satellite, microwaves, and others are considered
WAN topologies
CSMA/CA is used on wireless LAN’s for
Avoidance of data frame collisions
Today in a typical LAN, fiber optics are more commonly used for links between?
Floors, and buildings
When cabling across an area that has a lot of EMI you would use?
Shielded twisted pair cabling
Straight-through cables are used to
Connect unlike devices. Such as connecting a pc to a printer
Cross-over or Rollover cables are used in what situations
Connect a PC to router to configure it, PC to switch to configure it, and a PC to a PC to share data
How do LAN switches determine how to deliver a frame to the correct destination
MAC address table
If you wanted to find out if you could reach a printer or another device on the network you would use
A ping command
when developing a network troubleshooting strategy you should generally start where
bottom up on the TCP/IP model
Ethernet began life as a
LAN technology
What is the IEEE standard for Ethernet
Ethernet “bit rate” defined by IEEE standards
speed of the cables used in an Ethernet network
What is “10BaseTx”
Twisted pair cable
Edge switches would typically be located in what layer
Access Layer