Computer Networking
Which of the following is a wrong example of network layer?

X.25 level 2-ISO
Internet Protocol (IP) - ARPANET
Source routing and domain naming-USENet
X.25 Packet Level Protocol (PLP)-ISO

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Computer Networking
Which of the following are benefits of VLANs?1. They increase the size of collision domains.2. They allow logical grouping of users by function.3. They can enhance network security.4. They increase the size of broadcast domains while decreasing the number of collision domains.5. They simplify switch administration.6. They increase the number of broadcast domains while decreasing the size of the broadcast domains.

1, 3 and 5
1 and 5
2 and 4
2, 3 and 6

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Computer Networking
In geosynchronous orbit, satellite

moves simultaneously
remains in a fixed position so that as earth rotates, it can fully cover the earth
None of these
remains in a fixed position related to points on earth
moves faster than the earth's rotation so that it can cover larger portion of earth.

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Computer Networking
Which one of the following is true regarding VLANs?

VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
VTP is used to send VLAN information to switches in a configured VTP domain.
You should not have more than 10 switches in the same VTP domain.
Two VLANs are configured by default on all Cisco switches.

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