CCNA Chapter 10 Review
FTP, HTTP, SMTP
A manufacturing company subscribes to certain hosted services from its ISP. The services that are required include hosted world wide web, file transfer, and e-mail. Which protocols represent these three key applications? - FTP - HTTP - DNS - SNMP - DHCP - SMTP
peer-to-peer - no dedicated server is required - client and server roles are set on a per request basis peer-to-peer application - requires a specific user interface - a background service is required
Match a statement to the related network model
DHCP - dynamically assigns IP addresses to clients DNS - maps URLs to numerical addresses IMAP - allows viewing of messages on email clients HTTP - displays web pages SMTP - sends email messages
Match the function to the name of the application
PC_2
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which PC or PCs are sending FTP packets to the server? - PC_3 - PC_1 - PC_2 - PC_1 and PC_3
nslookup
Refer to the exhibit. What command was used to resolve a given host name by querying the name servers?
GET
The HTTP message type used by the client to request data from the web server is the _______ message.
Session, Presentation, Application
The application layer of the TCP/IP model performs the functions of what three layers of the OSI model? - physical - session - network - presentation - data link - transport - application
- Both models support devices in server and client roles.
What do the client/server and peer-to-peer network models have in common? - Both models have dedicated servers. - Both models support devices in server and client roles. - Both models require the use of TCP/IP-based protocols. - Both models are used only in the wired network environment
- A workstation initiates a DNS request when the user types www.cisco.com in the address bar of a web browser.
What is an example of network communication that uses the client-server model? - A user uses eMule to download a file that is shared by a friend after the file location is determined. - A workstation initiates an ARP to find the MAC address of a receiving host. - A user prints a document by using a printer that is attached to a workstation of a coworker. - A workstation initiates a DNS request when the user types www.cisco.com in the address bar of a web browser.
HTTPS
What is the acronym for the protocol that is used when securely communicating with a web server?
- to manually query the name servers to resolve a given host name
What is the function of the Nslookup utility? - to manually force a client to send a DHCP request - to view the network settings on a host - to manually query the name servers to resolve a given host name - to display all cached DNS entries on a host
- Clients establish a long term connection to servers.
What is true about the Server Message Block protocol? - Different SMB message types have a different format. - Clients establish a long term connection to servers. - SMB messages cannot authenticate a session. - SMB uses the FTP protocol for communication.
- GET
What message type is used by an HTTP client to request data from a web server? - GET - POST - PUT - ACK
- Telnet - provides remote access to servers and networking devices - DNS - resolves Internet names to IP addresses
Which two definitions accurately describe the associated application layer protocol? - SMTP - transfers web pages from web servers to clients - Telnet - provides remote access to servers and networking devices - DNS - resolves Internet names to IP addresses - FTP - transfers email messages and attachments - HTTP - enables devices on a network to obtain IP addresses
- mapping name-to-IP addresses for internal hosts - forwarding name resolution requests between servers
Which two tasks can be performed by a local DNS server? - providing IP addresses to local hosts - allowing data transfer between two network devices - mapping name-to-IP addresses for internal hosts - forwarding name resolution requests between servers - retrieving email messages
- peer-to-peer
Two students are working on a network design project. One student is doing the drawing, while the other student is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used? - peer-to-peer - client-based - master-slave - point-to-point
- the creation and maintenance of dialogue between source and destination applications - closest to the end user
What are two characteristics of the application layer of the TCP/IP model? - 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 establishing of window size
- Messages are kept in the mail servers until they are manually deleted from the email client.
What is an advantage for small organizations of adopting IMAP instead of POP? - Messages are kept in the mail servers until they are manually deleted from the email client. - When the user connects to a POP server, copies of the messages are kept in the mail server for a short time, but IMAP keeps them for a long time. - IMAP sends and retrieves email, but POP only retrieves email. - POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage
- .com
What part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain? - .com - www - http - index
- IMAP
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
- SMB
Which application layer protocol is used to provide file-sharing and print services to Microsoft applications? - HTTP - SMTP - DHCP - SMB
- HTTP
Which application layer protocol uses message types such as GET, PUT, and POST? - DNS - DHCP - SMTP - HTTP - POP3
- application
Which layer in the TCP/IP model is used for formatting, compressing, and encrypting data? - internetwork - session - presentation - application - network access
- a program that is running on an FTP server
Which phrase describes an FTP daemon? - a diagnostic FTP program - a program that is running on an FTP server - a program that is running on an FTP client - an application that is used to request data from an FTP server
- HTTPS
Which protocol is used by a client to communicate securely with a web server? - SMTP - SMB - IMAP - HTTPS
- The client can download data from or upload data to the server.
Which statement is true about FTP? - 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 is a peer-to-peer application. - FTP does not provide reliability during data transmission.
- The destination IP address is 255.255.255.255. - The message comes from a client seeking an IP address. - All hosts receive the message, but only a DHCP server replies.
Which three statements describe a DHCP Discover message? - The source MAC address is 48 ones (FF-FF-FF-FF-FF-FF). - The destination IP address is 255.255.255.255. - The message comes from a server offering an IP address. - The message comes from a client seeking an IP address. - All hosts receive the message, but only a DHCP server replies. - Only the DHCP server receives the message.
