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20 Cards in this Set
- Front
- Back
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How can digital subscriber lines be connected?
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Through a usb or ethernet.
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What does http stand for?
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Hyper text transfer layer
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What is TFTP?
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Trivial file transfer protocol It is like the UDP of ftp.
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What is SFTP and scp?
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secure versions of ftp
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Describe SMTP
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Secure mail transport protocol. It is the protocol used to send mail over the internet
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Describe the POP3 protocol
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post office protocol. Emails are saved to the client so that you are always able to access the mail even though the network is down.
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Describe IMAP
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The mail stays on the server
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Describe NTP network time protocol
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It allows you to verify time on a network
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Describe NNTP
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Network news transfer protocol. It allows you to read news from newsgroups
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Describe SNMP
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Simple network management protocol.
It enables the use of managing computer networks on nodes. |
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What is telnet and secure shell?
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It allows remote management.
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What is ICMP?
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It is like a status indicator that informs if things are slow busy etc... Uses ping and such
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What is the primary goal of the osi model?
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To allow proprietary devices to communicate through the use of protocols.
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Do most protocols span into different layers?
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Yes.
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Describe the session layer
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It uses session ID's to segregate sessions and hold them and terminate them
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Describe the transport layer
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It analyses segments and organizes them in terms of what the receiver can handle and distributes the packets accordingly.
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Where in the osi model is TCP and UDP used?
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In the transport layer.
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Where are port numbers assigned?
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In the transport layer. THe port number prepares the data for use in upper layers. Specificcally for file/email ect...
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Here is an image of the OSI layers and associated protocols
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sjhdasuyfaud
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THe phisical aspect of the osi model is segregated into two sublayers
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LLc logical link control and MAC media accsess control. MAC translates network specific requests into device specific terms. LLC provides the operating system link to the device driver.
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