1. What is the process of converting information into the proper form for transmission?

2. Which step of the communication process is concerned with properly identifying the address of the sender and receiver?

3. Which three are components of message timing? (Choose three.)

4. Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?

5. BGP and OSPF are examples of which type of protocol?

6. Which two protocols are service discovery protocols? (Choose two.)

7. What is the purpose of the sequencing function in network communication?

8. This protocol is responsible for guaranteeing the reliable delivery of information.

9. UDP and TCP belong to which layer of the TCP/IP protocol?

10. Which two protocols belong in the TCP/IP model application layer?

11. Which protocol operates at the network access layer of the TCP/IP model?

12. Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Choose two.)

13. A device receives a data link frame with data and processes and removes the Ethernet information. What information would be the next to be processed by the receiving device?

14. Which services are provided by the internet layer of the TCP/IP protocol suite? (Choose three.)

15. True or false. Standards organizations are usually vendor-neutral.

16. This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones.

17. This standards organization is responsible for IP address allocation and domain name management.

18. What types of standards are developed by the Electronics Industries Alliance (EIA)?

19. What is the process of dividing a large data stream into smaller pieces prior to transmission?

20. What is the PDU associated with the transport layer?

21. Which protocol stack layer encapsulates data into frames?

22. What is the name of the process of adding protocol information to data as it moves down the protocol stack?

23. True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway.

24. True or false? The right-most part of an IP address is used to identify the network that a device belongs to.

25. What is used to determine the network portion of an IPv4 address?

26. Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.)

27. What is the order of the two addresses in the data link frame?

28. True or False? Data Link addresses are physical so they never change in the data link frame from source to destination.

29. Which three acronyms/initialisms represent standards organizations? (Choose three.)

TCP/IP is a protocol stack that contains a lot of other protocols such as HTTP, FTP, and DNS. The TCP/IP protocol stack is required to be used when communicating on the Internet. A MAC address is an address that is burned into an Ethernet network card. OSI is the 7 layer model that is used to explain how networking works.

30. What type of communication will send a message to all devices on a local area network?

Broadcast communication is a one-to-all communication. A unicast communication is a one-to-one communication. Multicast is a one-to-many communication where the message is delivered to a specific group of hosts. Allcast is not a standard term to describe message delivery.

31. In computer communication, what is the purpose of message encoding?

Before a message is sent across a network it must first be encoded. Encoding is the process of converting the data message into another format suitable for transmission across the physical medium. Each bit of the message is encoded into a pattern of sounds, light waves, or electrical impulses depending on the network media over which the bits are transmitted. The destination host receives and decodes the signals in order to interpret the message.

32. Which message delivery option is used when all devices need to receive the same message simultaneously?

When all devices need to receive the same message simultaneously, the message would be delivered as a broadcast. Unicast delivery occurs when one source host sends a message to one destination host. The sending of the same message from a host to a group of destination hosts is multicast delivery. Duplex communications refers to the ability of the medium to carry messages in both directions.

33.What are two benefits of using a layered network model? (Choose two.)

Some vendors have developed their own reference models and protocols. Today, if a device is to communicate on the Internet, the device must use the TCP/IP model. The benefits of using a layered model are as follows: o assists in protocol design o fosters competition between vendors o prevents a technology that functions at one layer from affecting any other layer o provides a common language for describing network functionality o helps in visualizing the interaction between each layer and protocols between each layer

34. What is the purpose of protocols in data communications?

Protocols provide rules that define how a message is transmitted across a network. Implementation requirements such as electronic and bandwidth details for data communication are specified by standards. Operating systems are not specified by protocols, but will implement protocols. Protocols determine how and when to send a message but they do not control the contents of a message.

35. Which logical address is used for delivery of data to a remote network?

The destination IP address is used for end-to-end delivery of data to a remote network. The destination MAC address is used for delivery on a local network. The destination port number identifies the application that should process the data at the destination. Source addresses identify the sender of the data.

36. What is the general term that is used to describe a piece of data at any layer of a networking model?

The term protocol data unit (PDU) is used to describe a piece of data at any layer of a networking model. A packet is the PDU at the network layer. A frame is the data link layer PDU. A segment is the PDU at the transport layer.

37. Which two protocols function at the internet layer? (Choose two.)

ICMP and IP both function at the internet layer, whereas PPP is a network access layer protocol, and POP and BOOTP are application layer protocols.

38. Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?

The OSI model consists of seven layers: application, presentation, session, transport, network, data link, and physical. The transport layer defines services to segment, transfer, and reassemble the data for individual communications between the end devices.

39. Which type of communication will send a message to a group of host destinations simultaneously?

Multicast is a one-to-many communication where the message is delivered to a specific group of hosts. Broadcast communication is a one-to-all communication. A unicast communication is a one-to-one communication. Anycast is an IPv6 term and is the sending of data in a one-to-nearest communication.

40. What process is used to receive transmitted data and convert it into a readable message?

Decoding is the process of receiving transmitted data and reversing the encoding process to interpret the information. An example is a person that listens to a voicemail and decodes the sounds to understand the received message.

41. What is done to an IP packet before it is transmitted over the physical medium?

When messages are sent on a network, the encapsulation process works from the top of the OSI or TCP/IP model to the bottom. At each layer of the model, the upper layer information is encapsulated into the data field of the next protocol. For example, before an IP packet can be sent, it is encapsulated in a data link frame at Layer 2 so that it can be sent over the physical medium.

42. What process is used to place one message inside another message for transfer from the source to the destination?

Encapsulation is the process of placing one message format into another message format. An example is how a packet is placed in its entirety into the data field as it is encapsulated into a frame.

43. A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?

1. HTTP governs the way that a web server and client interact. 2. TCP manages individual conversations between web servers and clients. 3. IP is responsible for delivery across the best path to the destination. 4. Ethernet takes the packet from IP and formats it for transmission.