CH1: Introduction to Networking Review Questions

Client/Server

1In Question 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), 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?

Layer 1 - Physical layer

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?

P2P (peer-to-peer)

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?

Star Topology

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

Layer 7 - Application 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?

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?

MAC address

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

IP address

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

Layer 4 - Transport Layer

At which layer do TCP and UDP protocols work?

Layer 1: Physical Layer, Layer 2: Data Link Layer

At which two layers does the network adapter work?

Star bus topology

In Question 8 (A network consists of seven computers and a network printer, all connected directly to one switch), 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 now used?

HTTP (Hypertext Transfer Protocol)

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

Segment

What is a message called that is delivered by TCP?

Datagram

What is a message called that is delivered by UDP?

A Layer 2 switch belongs only to its local network, and a router belongs to two or more networks.

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

A MAN covers a small geographical area, and a WAN covers a large geographical area.

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

A host is a computer that hosts a resource on the network, and a node is any computer or device that can be addressed on the network.

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

Active Directory

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?

Layer 5 - Session Layer

Which OSI layer is responsible for not dropping the Skype connection?

Remote Desktop

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

POP3 (Post Office Protocol version 3)

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

IMAP4

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

SSL/TLS

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

Port

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