Networks
Terms
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copy deck
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How to establish a TCP connection?
- 1. Client sends SYN to server, 2. Server responds with SYN-ACK, 3. Client sends ACK (SYN-ACK-ACK)
- What addresses do multicast start with?
- 224.0.0.0
- What applications is TCP typically used for?
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http, ftp, email, secure shell
- What are characteristics of UDP?
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- Unreliable
- Not ordered
- Lightweight
- Datagrams
- What are common UDP applications?
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- DNS
- streaming media (IPTV)
- Voice over IP (VOIP)
- Trivial File Transfer Protocol (TFTP)
- online games
- What are the 3 major classes of IP networks?
- A, B, C, D, E
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What are the OSI Layers?
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- Physical Layer
- Data link layer
- Network layer
- Transport layer
- Session layer
- Presentation layer
- Application Layer
- What are the possible TCP states?
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- LISTEN
- SYN-SENT
- SYN-RECEIVED
- ESTABLISHED
- TIME-WAIT
- What are the standard ports on a system?
- 21/TCP,UDP - ftp 22/TCP,UDP - SSH 23/TCP,UDP - telnet 25/TCP,UDP - smtp 110 - POP3 123/UDP - NTP 445 - Microsoft
- What does the Ether type code do?
- It differentiates which protocol is being carried by the ethernet frame
- What is a class D IP address?
- Multicast Address
- What is BGP?
- Border Gateway Protocol. Used for routing between networks on the internet; supports many advanced routing features
- What is OSPF?
- Open Shortest Path First: A routing protocol which supports the concept of a "core" area to which everything attaches.
- What sets TCP apart from UDP?
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- Ordered data transfer
- Retransmission of lost packets
- Discarding duplicate packets
- Error-free data transfer
- Congestion control