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9 Cards in this Set
- Front
- Back
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What layer protocol are TCP/IP considered? |
Layer 4 in OSI, Internet in IP model |
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What protocol does voice and video use |
UDP |
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Do servers typically use dynamic port numbers |
No, because they are servers they conform to the standard port numbers 1- 1024 for the standard services. Ports range up to 64000. There are registered ports in this range too but they are not official as far as the test. |
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Basic firewall function is to limit what? |
Specific port traffic and application layer traffic from accessing the internal network. |
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A DMZ does what? |
Typically hosts servers that need to be accessed from the internet with traffic you do not want on the internal networks. |
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VPN's protect using 2 methods, they are |
1. Auththenticate the end points 2. Encrypt the data packets. |
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Sliding window refers to what? |
Data flow control. It is the max number of unacknowledged bytes that can be outstanding at any given time. It is a function of TCP |
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Connection establishment is made up of what? |
Sync and Ack messages and agreement on what port numbers to use. The messages are numbered to keep track of the sequence. |
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MTU is what |
Max transmission unit. Normally 1500 bytes |
