g15 - Application Layer

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

.com

(15.5.3) How many connections are required by FTP between client and server? - 1 - 2 - 3 - 4

2

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

AAAA

(15.2.5) Which peer-to-peer application allows users to share pieces of many files with each other at the same time? - Hybrid - Gnutella - BitTorrent

BitTorrent

(15.6.2) A wireless host needs to request an IPv4 address. What protocol would be used to process the request? - SNMP - HTTP - FTP - ICMP - DHCP

DHCP

(15.1.4) Which two are protocols that belong in the OSI application layer? - PNG - DNS - SMTP - QuickTime

DNS SMTP

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

False

(15.3.5) True or false? HTTP is a secure protocol.

False

(15.4.9) 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

(15.5.3) True or false? Resource sharing over SMB is only supported on Microsoft operating systems.

False

(15.6.2) What message type is used by an HTTP client to request data from a web server? - POST - ACK - PUT - GET

GET

(15.3.5) This protocol is used by a web browser to establish a connection to a web server. - HTTP - SSL - IMAP - SMTP

HTTP

(15.6.2) Which protocol uses encryption? - DNS - FTP - HTTPS - DHCP

HTTPS

(15.6.2) 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 - POP - SMTP - HTTPS

IMAP

(15.3.5) 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.

(15.6.2) Why is DHCP for IPv4 preferred for use on large networks? - It is a more efficient way to manage IPv4 addresses than static address assignment is. - DHCP uses a reliable transport layer protocol. - Hosts on large networks require more IPv4 addressing configuration settings than do hosts on small networks. - It prevents sharing of files that are copyrighted. - Large networks send more requests for domain to IP address resolution than do smaller networks.

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

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

MPEG HTTP GIF

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

NS

(15.6.2) Which protocol can be used to transfer messages from an email server to an email client? - SNMP - POP3 - SMTP - HTTP

POP3

(15.3.5) This message type is used when uploading data files to a web server. GET POST PUT

POST

(15.6.2) Which application layer protocol is used to provide file-sharing and print services to Microsoft applications? - SMB - DHCP - SMTP - HTTP

SMB

(15.3.5) This protocol is used by a client to send email to a mail server. - POP - SMTP - IMAP - HTTP

SMTP

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

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

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

True

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

True

(15.2.5) 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.

(15.6.2) On a home network, which device is most likely to provide dynamic IPv4 addressing to clients on the home network? - a dedicated file server - an ISP DHCP server - a home router - a DNS server

a home router

(15.1.4) This layer of the OSI model is concerned with the protocols that exchange data between programs running on hosts. - application - transport - network - physical

application

(15.6.2) Which TCP/IP model layer is closest to the end user? - application - internet - transport - network access

application

(15.1.4) These three OSI layers define the same functions as the TCP/IP model application layer. - application - presentation - session - transport - network - data link

application presentation session

(15.6.2) 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? - server - slave - client - master - transient

client

(15.1.4) This is a function of the OSI session layer. - compress and decompress data - provide an interface between applications - format data for the application layer - exchange of information to initiate dialog between peers

exchange of information to initiate dialog between peers

(15.1.4) MKV, GIF, and JPG standards are associated with which OSI layer? - application - presentation - session - transport

presentation

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

20 21

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

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

(15.4.9) 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

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

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