ICS 621 Exam 3

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What is an advantage of network devices using open standard protocols?

A client host and a server running different operating systems can successfully exchange data.

Which protocol is used by a computer to find the MAC address of the default gateway on an Ethernet network?

ARP

What statement describes the function of the Address Resolution Protocol?

ARP is used to discover the MAC address of any host on the local network.

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

DHCP DNS FTP

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?

HTTP TCP IP Ethernet

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

PDU

Which PDU format is used when bits are received from the network medium by the NIC of a host?

PDU

What is an advantage of using standards to develop and implement protocols?

Products from different manufacturers can interoperate successfully.

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

Segments are sent from the transport layer to the internet layer.

A user is viewing an HTML document located on a web server. What protocol segments the messages and manages the segments in the individual conversation between the web server and the web client?

TCP

Which protocol is responsible for controlling the size and rate of the HTTP messages exchanged between server and client?

TCP

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

The MAC address of the default gateway

Which statement is true about the TCP/IP and OSI models?

The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.

What will happen if the default gateway address is incorrectly configured on a host?

The host cannot communicate with hosts in other networks.

ISOC

The organization promotes the open development, evolution, and use of the internet throughout the world

Which statement is correct about network protocols?

They define how messages are exchanged between the source and the destination.

IANA

This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers

ISO

This organization is the largest developer of international standars in the world for a wide variety of products and services. It is know for its Open System Interconection (OSI) reference model.

governing the web server and a web client interact

application protocol

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

broadcast

Which address does a NIC use when deciding whether to accept a frame?

destination MAC address

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

encapsulation

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

flow control

What is a benefit of using a layered model for network communications?

fostering competition among device and software vendors by enforcing the compatibility of their products

taking the segments from the transport protocol, encapsulate them into packets, and assigning them with appropriate addresses

internet protocol

Which address provides a unique host address for data communications at the internet layer?

logical address

the process of converting information from one format into another acceptable for transmission

message encoding

the process of breaking up a long message into individual pieces before being sent over the network

message sizing

A computer in a given network is communicating with a specific group of computers. What type of communication is this?

multicast

Preparing packets to be transmitted over the network media

network access protocol

At which layer of the OSI model would a logical address be encapsulated?

network layer

What are proprietary protocols?

protocols developed by organizations who have control over their definition and operation

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

segment

Which characteristic describes the default gateway of a host computer?

the logical address of the router interface on the same network as the host computer

What is a function of Layer 4 of the OSI model?

to describe the ordered and reliable delivery of data between source and destination

managing the individual conversations between web servers and web clients

transport protocol


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