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Computer Networking

Computer Networking
Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?

VPN
HDLC
xDSL
Cable
IPSec

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Computer Networking
You are working with a network that is 172.16.0.0 and would like to support 600 hosts per subnet. What subnet mask should you use?

255.255.248.0
255.255.252.0
255.255.192.0
255.255.240.0
255.255.224.0

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Computer Networking
When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?

150
30
None of these
80
100

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Computer Networking
You are unsuccessful in telnetting into a remote device. What could the problem be?1. IP addresses are incorrect.2. Access control list is filtering Telnet.3. There is a defective serial cable.4. The VTY password is missing.

All of these
1 only
3 only
2 and 4 only

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Computer Networking
What are the distinct functions of layer 2 switching that increase available bandwidth on the network?1. Address learning2. Routing3. Forwarding and filtering4. Creating network loops5. Loop avoidance6. IP addressing

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

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Computer Networking
Which command will allow you to see real-time translations on your router?

clear ip nat translations *
show ip nat statistics
debug ip nat
show ip nat translations

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