Network+ Guide to Networks (8th Edition) - Chapter 1 Key Terms
Questions with Verified Answers (Correct Update)
Question 1: Active Directory (AD)
Answer: The centralized directory database that contains user account information and security for the
entire group of computers on a network.
Question 2: Active Directory Domain Services (AD DS)
Answer: The Active Directory service that manages the process allowing a user to sign on to a
network from any computer on the network and get access to the resources that Active Directory
manages.
Question 3: API (Application programming interface) call
Answer: The process an application uses to make a request of the OS.
Question 4: Application layer
Answer: The seventh layer of the OSI model. These protocols enable software programs to negotiate
formatting, procedural, security, synchronization, and other requirements with the network.
Question 5: backbone
Answer: The central conduit of a network that connects network segments and significant shared
devices (such as routers, switches, and servers) and is sometimes referred to as "a network of
networks."
Question 6: bus topology
Answer: A topology in which a single cable connects all nodes on a network without intervening
connectivity devices.
Question 7: CAN
Answer: A network of connected LANs within a limited geographical area, such as the buildings on a
university campus.
Question 8: catastrophic failure
Answer: A failure that destroys a component beyond use.
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, Question 9: client
Answer: A computer or application that makes a request from another computer or application.
Question 10: client-server application
Answer: Data or a service requested by one computer from another.
Question 11: client-server network model
Answer: A network where resources are managed by the NOS via a centralized directory database.
Question 12: connectionless protocol
Answer: A type of Transport layer protocol that services a request without requiring a verified session
and without guaranteeing delivery of data.
Question 13: connection-oriented protocol
Answer: A type of Transport layer protocol that requires the establishment of a connection between
communicating nodes before it will transmit data.
Question 14: Data Link Layer / Link Layer
Answer: The second layer in the OSI model. This bridges the Physical layer's networking media with
Network layer processes.
Question 15: datagram
Answer: A UDP message at the Transport layer.
Question 16: decapsulation
Answer: Removing a header or trailer from a lower OSI layer.
Question 17: domain
Answer: In the context of Windows Server NOSes, a group of users, servers, and other resources that
share account and security policies.
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Questions with Verified Answers (Correct Update)
Question 1: Active Directory (AD)
Answer: The centralized directory database that contains user account information and security for the
entire group of computers on a network.
Question 2: Active Directory Domain Services (AD DS)
Answer: The Active Directory service that manages the process allowing a user to sign on to a
network from any computer on the network and get access to the resources that Active Directory
manages.
Question 3: API (Application programming interface) call
Answer: The process an application uses to make a request of the OS.
Question 4: Application layer
Answer: The seventh layer of the OSI model. These protocols enable software programs to negotiate
formatting, procedural, security, synchronization, and other requirements with the network.
Question 5: backbone
Answer: The central conduit of a network that connects network segments and significant shared
devices (such as routers, switches, and servers) and is sometimes referred to as "a network of
networks."
Question 6: bus topology
Answer: A topology in which a single cable connects all nodes on a network without intervening
connectivity devices.
Question 7: CAN
Answer: A network of connected LANs within a limited geographical area, such as the buildings on a
university campus.
Question 8: catastrophic failure
Answer: A failure that destroys a component beyond use.
Page 1
, Question 9: client
Answer: A computer or application that makes a request from another computer or application.
Question 10: client-server application
Answer: Data or a service requested by one computer from another.
Question 11: client-server network model
Answer: A network where resources are managed by the NOS via a centralized directory database.
Question 12: connectionless protocol
Answer: A type of Transport layer protocol that services a request without requiring a verified session
and without guaranteeing delivery of data.
Question 13: connection-oriented protocol
Answer: A type of Transport layer protocol that requires the establishment of a connection between
communicating nodes before it will transmit data.
Question 14: Data Link Layer / Link Layer
Answer: The second layer in the OSI model. This bridges the Physical layer's networking media with
Network layer processes.
Question 15: datagram
Answer: A UDP message at the Transport layer.
Question 16: decapsulation
Answer: Removing a header or trailer from a lower OSI layer.
Question 17: domain
Answer: In the context of Windows Server NOSes, a group of users, servers, and other resources that
share account and security policies.
Page 2
