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Computer Networking

Computer Networking
You want to ping the loopback address of your local host(with IPv6). What will you type?

ping 127.0.0.1
trace 0.0.::1
ping 0.0.0.0
ping ::1

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Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

1/ (1 - F)
None of these
P I (K + 1)
K I (K - P)
KIK (1 + F)

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Computer Networking
Which of the following network types have a designated router and a backup designated router assigned?1. Broadcast2. Point-to-point3. NBMA4. NBMA point-to-point

All of these
1 and 3
1, 2 and 3
3 and 4

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Computer Networking
A devices that links two homogeneous packet-broadcast local networks, is

repeater
hub
None of these
gateway
bridge

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Computer Networking
Which of the following are valid ways to refer only to host 172.16.30.55 in an IP access list? 1. 172.16.30.55 0.0.0.255 2. 172.16.30.55 0.0.0.0 3. any 172.16.30.55 4. host 172.16.30.55 5. 0.0.0.0 172.16.30.55 6. ip any 172.16.30.55

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

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Computer Networking
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

synchronizing
demodulation
modulation
None of these
synchronizing

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