Chapter 1 review questions

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)

6. 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? a. Star-bus b. Ring c. Hybrid d. Peer-to-peer

D. Peer-to-peer

While troubleshooting a problem, you realize the problem is caused by a complex series of issues that will affect a large number of users even to test your theory as to the cause, and that process won't even solve the problem. What should you do next in the troubleshooting process?

Escalate the problem

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

Hosts are endpoints on a network, a node is any computer that can be addressed on the network

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 their computer cannot access email, although the computer can access websites. At which layer of the OSI model should you begin troubleshooting this problem and why?

Layer 7: Application Layer. If they are able to access other websites, then the computer is able to access other resources at every other layer. It is one application that is causing errors, in the application layer.

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 Layer 2 switch and router?

Switches extend networks, routers can connect networks, because routers can operate at layer 3.

List two protocols that function at the transport layer of the OSI model. What type of address do these protocols add to their headers, and what element does that address identify?

TCP and UDP. Source and destination ports, they address the receiving application.

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

WANs expand over a larger geographical area than MANs MANs cover a small geographical area. WANs cover a large geographical area

Which email protocol allows an email client to read mail stored on the mail server? a. IMAP4 b. SMTP c. TCP d. POP3

a. IMAP4

Which application embedded in Windows operating systems allows remote control of a computer and uses the RDP secure protocol for transmissions? a. Telnet b. Remote Desktop c. SFTP d. SSH

b. Remote Desktop

Which two encryption protocols might be used to provide secure transmissions for browser and web server communications? a. HTTP and HTTPS b. SSL and TLS c. SSL and HTTP d. TCP and UDP

b. SSL and TLS

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? a. Hybrid b. Client-server c. Star-bus d. Ring

b. client-server

Which type of address is used at the Transport layer to identify the receiving application? a. IP address b. Port c. MAC address d. Protocol

b. port

In the client-server model, what is the primary protocol used for communication between a browser and web server? a. FTP b. TCP c. HTTP d. SSL

c. HTTP

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? a. Hybrid b. Mesh c. Star-bus d. Star

c. star-bus

Which email protocol allows an email client to download email messages to the local computer? a. IMAP4 b. SMTP c. TCP d. POP3

d. POP3

8. A network consists of seven computers and a network printer, all connected directly to one switch. Which network topology does this network use? a. Hybrid b. Mesh c. Star-bus d. Star

d. star

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