What command will permit SMTP mail to only host 1.1.1.1?
A. access-list 10 permit smtp host 1.1.1.1
B. access-list 110 permit ip smtp host 1.1.1.1
C. access-list 10 permit tcp any host 1.1.1.1 eq smtp
D. access-list 110 permit tcp any host 1.1.1.1 eq smtp
Answer: Option D
Solution (By Examveda Team)
When trying to find the best answer to an access-list question, always check the access-list number and then the protocol. When filtering to an upper-layer protocol, you must use an extended list, numbers 100-199 and 2000-2699. Also, when you filter to an upper-layer protocol, you must use eithertcp or udp in the protocol field. If it says ip in the protocol field, you cannot filter to an upper-layer protocol. SMTP uses TCP. This Question Belongs to Networking >> Security
Question 1
1 Point
One way to limit hostile sniffing on a LAN (Local AreaNetwork) is by installing:
One way to limit hostile sniffing on a LAN (Local AreaNetwork) is by installing:
One way to limit hostile sniffing on a LAN (Local AreaNetwork) is by installing:
Which of these is not true ?
One way to limit hostile sniffing on a LAN (Local AreaNetwork) is by installing: