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Computer Networking

Computer Networking
Which of the following provide inter-switch VLAN communication? 1. ISL 2. VTP 3. 802.1Q 4. 802.3Z

2 only
2, 3 and 4
1 and 3
2 and 4

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Computer Networking
Which of the following protocols uses both TCP and UDP?

FTP
Telnet
SMTP
DNS

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Computer Networking
If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?

172.16.45.0
192.168.10.126
172.16.45.12
172.16.45.4
172.16.45.8

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Computer Networking
What is the port number for POP3?

80
110
90
49

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Computer Networking
The synchronous modems are more costly than the asynchronous modems because

they operate with a larger bandwidth
None of these
they produce large volume of data
they transmit the data with stop and start bits.
they contain clock recovery circuits

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

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

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