Networking Basics Flashcards
What are the five protocol layers?
- Physical
- Data Link
- Network
- Transport
- Application
What is UDP?
User Datagram Protocol.
What is TCP?
Transmission Control Protocol.
What are the main twisted copper cables?
Cat 5
Cat 5e
Cat 6
What is a hub?
A physical layer device that allows for connections from many computers at once.
What is a switch?
Layer 2 and can inspect the contents of the data.
What is a router?
Layer 3 A device that knows to forward data between independent layer networks. Can inspect IP data.
How do routers share data?
BGP - Border Gateway Protocol
What is duplex communication?
The concept that information can flow in both directions across the cable.
What is simplex?
One direction.
What is half duplex?
Only one device can communicate at a time.
A network segment where only one device can communicate at a time is known as a _____.
a. cross talk
b. protocol
c. collision domain
d. modulation
c. collision domain
The transmission method that sends data to every device on a LAN is known as a _____ transmission.
a. broadcast
b. unicast
c. multicast
d. simulcast
a. broadcast
The most common data link layer protocol for wired connections is _____.
a. Ethernet
b. BGP
c. TCP
d. UDP
a. Ethernet
When an electrical pulse on one wire is accidentally detected on another nearby wire, this is known as _____.
a. duplex communication
b. preamble
c. cross talk
d. multicast
c. cross talk
A defined set of standards that computers must follow in order to communicate properly is known as a _____.
a. switch
b. collision domain
c. modulation
d. protocol
d. protocol
What layer in the Transmission Control Protocol/Internet Protocol (TCP/IP) model does IP use?
a. Network
b. Physical
c. Transport
d. Data link
a. Network
Which layer in the Transmission Control Protocol/Internet Protocol (TCP/IP) model is responsible for delivering data between two nodes?
a. Transport
b. Application
c. Network
d. Data link
a. Transport
What type of cable communicates binary data by changing the voltage between two ranges?
a. Fiber
b. Gold
c. Silver
d. Copper
d. Copper
You have installed a device at the physical layer. All of the systems you connect to this device will talk to each other at the same time. What have you installed?
a. Hub
b. Switch
c. Router
d. Server
a. Hub
What device forwards data and operates at layer three of the Transmission Control Protocol/Internet Protocol (TCP/IP) model?
a. Hub
b. Client
c. Router
d. Switch
c. Router
You get in your car after work and turn on the radio. What type of communication does the radio use?
a. Simplex
b. Twisted
c. Full duplex
d. Half duplex
a. Simplex
Select the device that will have the most network ports.
a. Switch
b. Desktop
c. Server
d. Laptop
a. Switch
Which layer abstracts away the need for any other layers to care about what hardware is in use?
a. Physical
b. Network
c. Data link
d. Transport
c. Data link
A user is operating Client A and sends a message to Client B. What is used to identify the node the transmission is meant for?
a. Internet Protocol (IP) address
b. Subnet address
c. Ethernet address
d. Media Access Control (MAC) address
d. Media Access Control (MAC) address
What type of transmission will have a zero in a special bit in the destination Media Access Control (MAC) address?
a. Broadcast
b. Multicast
c. Singlecast
d. Unicast
d. Unicast
Where is the Start Frame Delimiter (SFD) found in an ethernet frame?
a. The last byte of the EtherType field
b. The first byte of the preamble
c. The first byte of the EtherType field
d. The last byte of the preamble
d. The last byte of the preamble
