Computer Networking
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

None of these
Electronic mail
Telex
Facsimile
Word processor

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Computer Networking
In geosynchronous orbit, satellite

None of these
moves faster than the earth's rotation so that it can cover larger portion of earth.
moves simultaneously
remains in a fixed position so that as earth rotates, it can fully cover the earth
remains in a fixed position related to points on earth

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Computer Networking
If you wanted to deny FTP access from network 200.200.10.0 to network 200.199.11.0 but allow everything else, which of the following command strings is valid?

access-list 198 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftpaccess-list 198 permit ip any 0.0.0.0 255.255.255.255
access-list 110 deny 200.200.10.0 to network 200.199.11.0 eq ftpaccess-list 111 permit ip any 0.0.0.0 255.255.255.255
access-list 1 deny ftp 200.200.10.0 200.199.11.0 any any
access-list 100 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp

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