Network+ Guide to Networks (Eighth Edition) Chapter 1 Review Questions

At the Data Link layer, which type of network address is used to identify the receiving node?

MAC address

What is the fundamental distinction between a node and a host?

A host is a computer that hosts a resource on the network while a node is any computer that can be addressed on the network

What is the fundamental distinction between a Layer 2 switch and router?

A switch belongs only to one network while a router belongs to more than one network

What is the name of the domain controller database that Windows Server 2016 uses to store data about user access and resources on the network?

AD (Active Directory)

In Question 6, suppose one computer is upgraded from Windows 10 Professional to Windows Server 2016. Which networking model can the network now support that it could not support without the upgrade?

Client-server model

In the client-server model, what is the primary protocol used for communication between a browser and Web server?

HTTP

Which email protocol allows an email client to read mail stored on the mail server?

IMAP4

At the Network layer, what type of address is used to identify the receiving host?

IP address

A computer is unable to access the network. When you check the LED lights near the computer's network port, you discover the lights are not lit. Which layer of the OSI model are you using to troubleshoot this problem? At which two layers does the network adapter work?

Layer 1 (Physical Layer); Layer 2 (Data Link Layer)

A user complains that Skype drops her videoconference calls and she must reconnect. At which layer of the OSI model should you begin troubleshooting? Which OSI layer is responsible for not dropping the Skype connection?

Layer 5 (Session Layer); Layer 7 (Application Layer)

A user complains that he cannot access a particular website, although he is able to access other websites. At which layer of the OSI model should you begin troubleshooting this problem?

Layer 7 (Application Layer)

What is the fundamental distinction between a MAN and a WAN?

MANs cover a small geographical area while WANs cover a large geographical area

Which email protocol allows an email client to download email messages to the local computer?

POPv3 (POP3)

A network consists of five computers all running Windows 10 Professional. All the computers are connected to a switch, which is connected to a router, which is connected to the Internet. Which networking model does the network use?

Peer-to-peer model

Which type of address is used at the Transport layer to identify the receiving application?

Port

Which application embedded in Windows operating systems allows remote control of a computer and uses the RDP secure protocol for transmissions?

Remote Desktop

Which two encryption protocols might be used to provide secure transmissions for browser and Web server communications?

SSL and TLS

What is a message called that is delivered by TCP? What is a message called that is delivered by UDP? At which layer do the two protocols work?

Segment; Datagram; Layer 4 (Transport Layer)

A network consists of seven computers and a network printer, all connected directly to one switch. Which network topology does this network use?

Star topology

In question 8, suppose a new switch is connected to the first switch by way of a network cable, and three computers are connected to the new switch. Which network topology is used?

Star-bus topology