Network+ Chapter 1 - Review Questions

SMTP

(Simple Mail Transfer Protocol) The main protocol used to send electronic mail from server to server on the Internet.

Physical Layer, Physical & Data Link 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? At which two layers does the network adapter work?

Star Topology

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

Session 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?

Application Layer

A user complains that he cannot access a particular Web site, although he is able to access other Web sites. At which layer of the OSI model should you begin trouble- shooting the problem?

Web Server

Apache is a popular example of what type of network software?

Star Bus Topology

In question 14, suppose a new switch is connected to the first switch by way of network cable and three computers are connected to the new switch. Which topology is now used?

Client-server

In question 9, 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?

HTTP

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

21. UDP because live video-streaming appliances are not designed with TCP streaming in mind

Is TCP or UDP normally used when streaming live video? Why?

SFTP

Secure File Transfer Protocol

SNMP

Simple Network Management Protocol. Used to collect system information from a remote computer

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?

TCP/IP

What is the primary protocol used at the Network layer?

Remote Desktop

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

POP3

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 and TLS

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

The transport layer identifies the receiving application through the port number.

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

It's important to wear an ESD strap because it equalizes the electrical potentials between you and the server

Why is it important to wear an ESD strap when installing a server in a rack?

SOHO

small office/home office

They have a peer-to-peer (P2P) network model

A network consists of 10 computers, all running Windows 7 Professionals. One computer acts as a file server and serves up data to other computers on the network. Which networking model does the network use?

Star-bus

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?

MAC or Physical Address

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

IP -- specifically IPv4

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

A MAN is a network that deals with communication within a specific area such as a metropolis area, while a WAN covers connection with in a greater geological sphere.

What are the fundamental distinctions between a MAN and WAN?

Layer 2 switch operating on a local network while the router belongs to 2 or more networks

What are the fundamental distinctions between a layer 2 switch and router?

A host is a computer/device that has an application or data that is needed by other electronics while a node is any computer/device that can be addressed on the network

What are the fundamental distinctions between a node and a host?

PPE - Personal Protective Equipment

What gear is used for the worker when working in a dangerous environment?

TCP = segment (connection oriented) UDP = datagram (connectionless) Work at the Transport Layer

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