Chapter 10 Flashcards
The application layer is the _th layer of the OSI Model?
7th.
The application layer on the TCP/IP model is made up of what OSI layers?
- Application6. Presentation5. Session
The Application layer is the _____ interface to the network?
Human
The presentation layer has three primary functions
- Encoding2. Compression3. Encryption
The session layer ______ and ________ dialog between source and destination applications.
Creates and Maintains.
The session layer is essentially a?
Traffic Cop.
Many peer-to-peer applications are based on what protocol?
Gnutella Protocol
Servers usually run listening services that are called?
Daemons
Below are examples of URL, describe each colored element
- Service Protocol
- Sub domain (optional)
- Domain Name
- Top-Level-Domain
- Requested File Path
What port does HTTP services operate on?
TCP Port 80
What port does HTTPS services operate on?
TCP Port 443
What port does SMPT services operate on?
TMP Port 25
What port does POP3 services operate on?
TMP Port 110
What port does IMAP services operate on?
TCP Port 143
True/False: DNS operates on both TCP and UDP?
True.
What port does DNS services operate on?
TCP & UDP Port 53
True/False: DHCP operates on TCP?
False. DHCP is considered a local-only service and does not use TCP.
What two ports does DHCP services operate on?
UDP Ports 67 and 68.
What port does Telnet services operate on?
TCP Port 23
What port does SSH services operate on?
TCP Port 22
What two ports does FTP services operate on?
TCP Ports 20 and 21.
What does FTP Services uses port 21 for?
Commands and Replies
What does FTP Services uses port 20 for?
For the actual file transfers.
What are 10 types Application Layers?10.1.1.2
HTTPHTTPSFTPTFTPIMAPDNSPOPIMAPBOOTPDHCP
What is peer-to-peer(P2P)10.1.2.2
An application allows a device to act as both a client and a server within the same communication
What are the 3 common messages for HTML?10.2.1.3
GET,POST,PUT
What does the GET message do?10.2.1.3
A client (web browser) sends the GET message to the web server to request HTML pages.
What does the POST message do?10.2.1.3
A POST message is the data that the user submitted in the form.
What does the PUT message do?10.2.1.3
Uploads resources or content to the web server (i.e a file)
What is the Port for SMTP?10.2.1.5
25
What is the Port for Post Office Protocol (POP)10.2.1.6
110
What is the Port for Internet Message Access Protocol (IMAP)10.2.1.7
143
What does BIND stand for?10.2.2.2.
Berkeley Internet Name Domain
What is the command line to display DNS records on the local client?10.2.2.2
ipconfig /displaydns
what does DHCP stand for?10.2.2.6
The Dynamic Host Configuration Protocol
What is SMB?10.2.3.4
Server Message Block
What is Server Message Block us for?
It is a client/server file sharing protocol,
