Define proxy servers and how do they protect computer networks?
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How a switch will identify that it has received a STP packet
You are using DNS only for name resolution. If the primary server is not responding (down), which "condition" (nsswitch.conf) does this situation fall in?
Which layer does error notification ? a. Physical b. Data Link c. Network d. Transport
You have the following Network ID: 192.115.103.64/27. What is the IP range for your network?
You have a few machine on remore location. Uplink bandwidth is premium. You want to reduce name lookup traffic as much as possible. Which should you do ?
What OSI level does a bridge work at? a. Application Layer b. Presentation Layer c. Session Layer d. Transport Layer e. Network Layer f. Data Link Layer g. Physical Layer
In network topology what is called as one large coaxial cable joins all the computers.
Which layer uses datagrams? a. physical b. data-link c. network d. transport
How can we create more than 20 ID's in Gmail.com from one IP ?
A modem modulates digital signals into analog and __ analog signals back into digital signals.
what is the difference between gsm and cdma
The following are the steps toward encapsulation. Put them in order: 1. User input 2. data 3. frame 4. segment 5. datagram 6. bits a. 1-4-2-5-3-6 b. 1-5-4-2-3-6 c. 1-2-3-5-4-6 d. 1-2-4-5-3-6