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Computer Networking

Computer Networking
An internetworking protocol that provides virtual circuit service across multiple X.25 protocol, is

X.21
X.400
X.75
X.25
None of these

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Computer Networking
Which statements are true regarding ICMP packets?1. ICMP guarantees datagram delivery.2. ICMP can provide hosts with information about network problems.3. ICMP is encapsulated within IP datagrams.4. ICMP is encapsulated within UDP datagrams.

All of these
1 only
1 and 4
2 and 3

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Computer Networking
Which of the following is considered to be the address after translation?

Outside global
Outside local
Inside global
Inside local

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Computer Networking
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?1. Switch2. NIC3. Hub4. Repeater5. RJ45 transceiver

All of these
5 only
1 only
3 and 4
1 and 3

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Computer Networking
What is the frequency range of the IEEE 802.11b standard?

2.4Gbps
5GHz
2.4GHz
5Gbps

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Computer Networking
Which command will delete the contents of NVRAM on a router?

erase start
delete startup-config
delete NVRAM
erase NVRAM

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