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C. access-list 101 deny ip 210.93.105.0 0.0.0.255 223.8.151.0 0.0.0.255 eq 21 access-list 101 deny ip 210.93.105.0 0.0.0.255 223.8.151.0 0.0.0.255 eq 20
D. access-list 101 deny ip 210.93.105.0 255.255.255.0 223.8.151.0 255.255.255.0 eq 21 access-list 101 deny ip 210.93.105.0 255.255.255.0 223.8.151.0 255.255.255.0 eq 20
Answer: A
When using an extended access-list to check addresses and port numbers you reference tcp as the protocol, the source and destination network address with wildcard masks and the port number to validate. FTP uses
two ports so we must check both.
Chapter: 6
266. What is the key reason the ISO released the OSI model?
A. To reduce vendor fighting over standards B. To allow vendor inter-operability.
C. To make vendor equipment less compatible.
D. To confuse users
Answer: B
To ensure vendors had a standard that would support inter-operability.
Chapter: 6
267. What is the encapsulation order?
A. Segment, Packet, Frame, Bits
B. Packet, Segment, Frame, Bits C. Frame, Packet, Segment. Bits
D. Bits, Segment, Frame, Packet
Answer: A
The encapsulation order is from Transport to Network to Data-link to Physical, so Segment, Packet, Frame
and Bits.
Chapter: 6
268. Full duplex requires a ___________________ connection when only two nodes are present. A. point-to-multipoint
B. multipoint-to-point