The Bits and Bytes of Computer Networking Review Questions with complete Solutions Rated A+

The Bits and Bytes of Computer Networking Review Questions with complete Solutions Rated A+ Which of the following is an example of a network layer (layer 3) protocol? - Answers IP, or Internet Protocol, is the most common network layer protocol. What's the difference between a client and a server? - Answers A client requests data, a server responds to that request Which of the following are examples of layers of our five-layer network model? - Answers Transport layer, application layer, physical layer Which of the following statements accurately describe the differences between a hub and a switch? - Answers A hub is a physical layer device that causes larger collision domains. A switch is a data link layer device that remembers which device is connected on each interface What does LAN stand for? - Answers LAN stands for Local Area Network. What's a router? - Answers A router connects independent networks by forwarding data between them. What is the type of modulation used by twisted pair cable computer networks known as? - Answers Line coding is the modulation of an electrical charge so that each side of a connection knows what is a one and what is a zero. What's the difference between full and half duplex? - Answers A half duplex connection allows communication in both directions, but only one side can communicate at a time. How many octets are there in a MAC address? - Answers A MAC address is a 48-bit number consisting of 6 octets. What address is used for Ethernet broadcasts? - Answers The address FF:FF:FF:FF:FF:FF is used for Ethernet broadcast traffic. What is a cyclical redundancy check? - Answers A cyclical redundancy check ensures that there was no data corruption. When data can flow across a cable in both directions, this is known as _____ communication. - Answers Duplex communication occurs when data flows in both directions. The transmission method that sends data to every device on a LAN is known as a _____ transmission. - Answers Broadcast transmissions are used to communicate with every node on a network segment. Something that requests data from a server is known as a ____ - Answers A client requests data, and a server responds to that request. When an electrical pulse on one wire is accidentally detected on another nearby wire, this is known as _____. - Answers Crosstalk is reduced by the way that wires are twisted inside of a cable. A defined set of standards that computers must follow in order to communicate properly is known as a _____. - Answers Protocols help define standards so that different computers can communicate with each other. What is the fifth layer of the Transmission Control Protocol/Internet Protocol (TCP/IP) model? - Answers The fifth layer of the TCP/IP model is the application layer. The application layer focuses on application specific protocols. What type of cable communicates binary data by changing the voltage between two ranges? - Answers Copper cables communicate binary data across wires by changing the voltage between two ranges. Multiple systems try to send data at the same time. The electrical pulses sent across the cable interfere with each other. What type of network segment is being used? - Answers A collision domain is a network segment where only one device can communicate at a time.