47. Fill in the blank: MAC address stands for ____ address
- Media Access Control
- Maximum Allowable Cost
- Message Authentication Check
- Memory Access Controller
48. Which layer in the Transmission Control Protocol/Internet Protocol (TCP/IP) model is responsible for defining a common way to interpret signals so network devices can communicate?
- Data link
- Application
- Transport
- Network
49. Which protocol do routers use to determine the optimal path to forward traffic?
- User Datagram Protocol (UDP)
- Transmission Control Protocol (TCP)
- Border Gateway Protocol (BGP)
- Internet Protocol (IP)
50. True or false: The TCP provides mechanisms to ensure that data is reliably delivered.
- True
- False
51. Which layer of the network model includes specifications for cables and connectors and how signals are sent over these connections?
- Data link
- Network
- Physical
- Transport
52. 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?
- Client
- Hub
- Server
- Router
53. Which section in an ethernet frame contains the data from higher layers, such as Internet Protocol (IP) and the transport and application layers?
- Payload
- Frame Check Sequence
- Preamble
- EtherType
54. Which of the following is a device that knows how to forward traffic between independent networks?
- Client
- Router
- Hub
- Switch
55. Which of the following is the fifth layer of the TCP/IP Five-layer network model.
- Data Link
- Transport
- Application
- Physical
