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Computer Networking

Computer Networking
What is the subnetwork number of a host with an IP address of 172.16.66.0/21?

172.16.48.0
172.16.0.0
172.16.64.0
172.16.36.0

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Computer Networking
Which fields are contained within an IEEE Ethernet frame header?1. Source and destination MAC address2. Source and destination network address3. Source and destination MAC address and source and destination network address4. FCS field

1 and 4
2 only
2 and 3 only
3 only

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Computer Networking
What is the default subnet mask for a class C network?

127.0.0.1
None of these
255.255.255.0
255.0.0.0
255.255.0.0

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Computer Networking
How many non-overlapping channels are available with 802.11a?

12
3
40
23

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Computer Networking
Which of the following files is used for NetBIOS name resolution?

ARP
HOSTS
LMHOSTS
FQDN
None of these

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Computer Networking
Which file transfer protocol uses UDP?

TFTP
None of these
TELNET
FTP
NFS

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