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Computer Networking

Computer Networking
Which of the following protocols are used to configure trunking on a switch?1. VLAN Trunk Protocol2. VLAN3. 802.1Q4. ISL

3 and 4
1, 3 and 4
3 only
1 only

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Computer Networking
What frequency range is used for TV transmission and low power microwave applications?

Ultra High Frequency : 300 MHz to 3000 MHz
None of these
Medium Frequency : 300 kHz to 3 MHz
Super High Frequency : 3000 MHz to 30000 MHz
Very Low Frequency : 3 kHz to 30 kHz

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Computer Networking
An example of digital, rather than analog, communication is

WATS
DDD
None of these
DDS
DDT

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Computer Networking
A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as

Gateways
mail gateway
User Agent
None of these
bridges

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Computer Networking
You are working with a network that has the network ID 172.16.0.0, and you require 25 subnets for your company and an additional 30 for the company that will merge with you within a month. Each network will contain approximately 600 nodes. What subnet mask should you assign?

255,255.248.0
255.255.224.0
255.255.192.0
255.255.252.0
255.255.240.0

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Computer Networking
To avoid transmission errors, a check figure is calculated by the

Start and stop bit
transmitting computer
receiving computer
both A and B
None of these

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