CNT 206 - Chapter 15 quizzes

What part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain?

.com

How many connections are required by FTP between client and server?

2

Which of these ports are used by FTP? (Choose two.) 20 21 25 110

20 21

Which of the following DNS record types is used to resolve IPv6 addresses? A NS AAAA MX

AAAA

A wireless host needs to request an IPv4 address. What protocol would be used to process the request?

DHCP

Of the following, which two are protocols that belong in the OSI application layer? PNG DNS SMTP QuickTime

DNS SMTP

This is a function of the OSI session layer

Exchange of information to initiate dialog between peers

True or false? A DNS server that receives a request for a name resolution that is not within its DNS zone will send a failure message to the requesting client

False

True or false? HTTP is a secure protocol.

False

True or false? Resource sharing over SMB is only supported on Microsoft operating systems

False

True or false? The peer-to-peer networking model requires the implementation of a dedicated server for data access

False

What message type is used by an HTTP client to request data from a web server?

GET

This protocol is used by a web browser to establish a connection to a web server

HTTP

Which three protocols or standards are used at the application layer of the TCP/IP model? (Choose three.) UDP IP HTTP TCP MPEG GIF

HTTP MPEG GIF

Which protocol uses encryption? FTP DHCP DNS HTTPS

HTTPS

When retrieving email messages, which protocol allows for easy, centralized storage and backup of emails that would be desirable for a small- to medium-sized business?

IMAP

Which of the following DNS resource record types resolves authoritative name servers? NS A AAAA MX

NS

Which protocol can be used to transfer messages from an email server to an email client?

POP3

This message type is used when uploading data files to a web server

POST

Which application layer protocol is used to provide file-sharing and print services to Microsoft applications?

SMB

This protocol is used by a client to send email to a mail server

SMTP

Which statement is true about FTP? FTP is a peer-to-peer application The client can choose if FTP is going to establish one or two connections with the server The client can download data from or upload data to the server FTP does not provide reliability during data transmission

The client can download data from or upload data to the server

This layer of the OSI model is concerned with the protocols that exchange data between programs running on hosts

application

Which TCP/IP model layer is closest to the end user?

application

These three OSI layers define the same functions as the TCP/IP model application layer

application presentation session

An author is uploading one chapter document from a personal computer to a file server of a book publisher. What role is the personal computer assuming in this network model?

client

On a home network, which device is most likely to provide dynamic IPv4 addressing to clients on the home network?

home router

Which two tasks can be performed by a local DNS server? (Choose two.) allowing data transfer between two network devices providing IP addresses to local hosts mapping name-to-IP addresses for internal hosts forwarding name resolution requests between servers retrieving email messages

mapping name-to-IP addresses for internal hosts forwarding name resolution requests between servers

MKV, GIF, and JPG standards are associated with which OSI layer?

presentation

Which of the following is displayed by the nslookup utility? the configured default DNS server the IP address of the end device all cached DNS entries

the configured default DNS server

What are two characteristics of the application layer of the TCP/IP model? (Choose two.) the creation and maintenance of dialogue between source and destination applications responsibility for physical addressing responsibility for logical addressing closest to the end user

the creation and maintenance of dialogue between source and destination applications closest to the end user

Of the following, which peer-to-peer application allows users to share pieces of many files with each other at the same time? Hybrid Gnutella BitTorrent

BitTorrent

Of the following, which is a feature of IMAP? It uploads email messages to a server It listens passively on port 110 for client requests It downloads a copy of email messages leaving the original on the server

It downloads a copy of email messages leaving the original on the server

Why is DHCP for IPv4 preferred for use on large networks?

It is a more efficient way to manage IPv4 addresses than static assignment is

True or false? FTP data transfers take place from client to server (push) and from server to client (pull)

True

Which of the following is a feature of the Gnutella protocol? Users can share whole files with other users Users can share pieces of files with other users Users can access an index server to get the location of resources shared by other users

Users can share whole files with other users

True or false? In a peer-to-peer network environment every peer can function as both a client and a server

True