Dallas College week 3 questions intro to networking Protocols and models

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.

Broadcast

Which two protocols belong in the TCP/IP model application layer? DHCP and DNS are both application layer protocols.

DHCP and DNS

Which two protocols are service discovery protocols? (Choose two.) Service discovery protocols, such as DNS and DHCP enable automatic detection of service. DHCP is used to discover services for automatic IP address allocation and DNS for name-to-IP address resolution services.

DNS and DHCP

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

Decoding

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.

Encapsulation

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.

Encoding is the process of converting the data message into another format suitable for transmission across the physical medium.

Which protocol operates at the network access layer of the TCP/IP model?Ethernet is a network access layer protocol.

Ethernet

True or False? Data Link addresses are physical so they never change in the data link frame from source to destination. The correct answer is False. Data link addresses change within the data link frame when the receiving device is not on the same network.

False

True or false? The right-most part of an IP address is used to identify the network that a device belongs to. The correct answer is False. It is the left-most portion of an IP address that identifies the network. The right-most portion is used to identify the specific device or interface.

False

Which three are components of message timing? (Choose three.) Flow control is the managing of the rate of transmission. Response timeout is how long to wait for responses. Access methods determine when someone can send a message. These are the three components of message timing.

Flow control Response timeout Access methods

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.

HTTP ,TCP, IP, Ethernet

This standards organization is responsible for IP address allocation and domain name management. IANA is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers for ICANN.Internet Assigned Numbers Authority

IANA

Which two protocols function at the internet layer? (Choose two.) ICMP and IP both function at the internet layer,

ICMP and IP

Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Choose two.) ICMPv4 and ICMPv6 provide feedback when errors occur.

ICMPv4 and ICMPv6

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

IEEE, IETF, IANA

This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones. The IETF develops and maintains the specifications for new protocols and updates to existing protocols through published documents called Request for Comments (RFCs). Internet Engineering Task Force

IETF

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? Data is de-encapsulated so the next layer to receive the data would be the internet layer.

IP at internet layer

Which services are provided by the internet layer of the TCP/IP protocol suite? (Choose three.) (Internet Protocol), ICMP (Messaging), and Routing Protocols are services provided at the Internet Layer.

Internet Protocol Messaging and Routing Protocol

Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.) MAC addresses are physical addresses and 48 bits or 12 hex digits in length. IPv4 addresses and IPv6 addresses are logical. IPv4 addresses are 32 bits and IPv6 addresses are 128 bits.

MAC addresses are physical addresses and 48 bits or 12 hex digits in length. IPv4 addresses and IPv6 addresses are logical. IPv4 addresses are 32 bits and IPv6 addresses are 128 bits.

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.

Multicast

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network? Multicastmessages are addressed for transmission to one or more end devices on a network. Broadcast messages are addressed for transmission to all devices on the network. Unicast messages are addressed for transmission to one device on the network.

Multicast messages

What is the purpose of protocols in data communications?Protocols provide rules that define how a message is transmitted across a network.

Protocols provide rules that define how a message is transmitted across a network.

What is the process of dividing a large data stream into smaller pieces prior to transmission? Segmentation is the process of dividing a large data stream into smaller pieces which are then transmitted to the receiver.

Segmentation

What is the purpose of the sequencing function in network communication? Sequencing uniquely identifies or labels each transmitted segment with a sequence number that is used by the receiver to reassemble the segments in the proper order.

Sequencing uniquely identifies or labels each transmitted segment

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 IP address

True or false. Standards organizations are usually vendor-neutral. The correct answer is True. Most standards organizations are vendor-neutral, non-profit organizations that develop and promote open standards.

True

True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway.The correct answer is True. When two devices are on different IP networks, frames cannot be sent directly to the receiver since it is on a different logical network. The frames must first be forwarded to a default gateway (router).

True

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.

broadcast

Which protocol stack layer encapsulates data into frames? The data link layer encapsulates data into a frame.

data link

What is the order of the two addresses in the data link frame? The data link frame addressing consists of a destination and source MAC address in that order.

destination and source MAC address

What types of standards are developed by the Electronics Industries Alliance (EIA)? The Electronics Industries Alliance (EIA) develops standards related to electrical wiring, connectors, and network equipment racks.

electrical wiring and connectors

What is the name of the process of adding protocol information to data as it moves down the protocol stack? As data moves down the protocol stack, protocol data is added to the original data. This process is known as encapsulation.

encapsulation

What is the process of converting information into the proper form for transmission? One of the first steps to sending a message is encoding. During the encoding process, information is converted from its original form into an acceptable form for transmission.

encoding

Which step of the communication process is concerned with properly identifying the address of the sender and receiver? Messages sent over a computer network must be in the correct format for them to be delivered and processed. Part of the formatting process is properly identifying the source of the message and its destination.

formatting

What is done to an IP packet before it is transmitted over the physical medium? it is encapsulated in a data link frame at Layer 2 so that it can be sent over the physical medium.

it is encapsulated in a data link frame at Layer 2

What are two benefits of using a layered network model? (Choose two.) prevents a technology that functions at one layer from affecting any other layer assists in protocol design

prevents a technology that functions at one layer from affecting any other layer assists in protocol design

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.

protocol data unit

BGP and OSPF are examples of which type of protocol? BGP and OSPF are routing protocols. They enable routers to exchange route information to reach remote networks.

routing

What is the PDU associated with the transport layer? The transport layer PDU is known as a segment.

segment

What is used to determine the network portion of an IPv4 address? It is the subnet mask used in IPv4 that is used to determine the network portion of an IPv4 address.

subnet mask

This protocol is responsible for guaranteeing the reliable delivery of information. Transmission Control Protocol (TCP) manages the conversation between end devices and guarantees the reliable delivery of information.

tcp

UDP and TCP belong to which layer of the TCP/IP protocol? TCP and UDP are both transport layer protocols.

transport layer

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

transport layer