Computer Networking
An information utility can offer a user

All of these
complete airline schedules for all domestic flights
instant bonds and stock quotations
None of these
news stories from wire services

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Computer Networking
You want to create a standard access list that denies the subnet of the following host: 172.16.144.17/21. Which of the following would you start your list with?

access-list 10 deny 172.16.64.0 0.0.31.255
access-list 10 deny 172.16.144.0 0.0.7.255
access-list 10 deny 172.16.136.0 0.0.15.255
access-list 10 deny 172.16.48.0 255.255.240.0

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Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

can receive and send data simultaneously
None of these
cannot talk at once
can send or receive data one at a time
can do one way data transmission only

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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 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 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 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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