When you send an email you should provide the sender's email address.()

A.while

B.when

C.if

A.send

B.let

C.visit

D.show

A.original

B. old

C. genuine

D. real

A.which summarize

B.summarizing

C.summarize

A.cc

B.bcc

C.forward

D.draft

A．others

B．other

C．the other

D．the others

A．Echo request and Echo reply

B．ICMP hold and ICMP send

C．ICMP request and ICMP reply

D．Echo off and Echo on

E．None of the above

A. After the router ospf 10 and passive - interface s0/0 commands have been issued , the s0/0 interface will not send any OSPF updates, but will receive routing updates on that interface

B. When you use the passive - interface command with RIPv2, multicasts are sent out the specified interface

C. After the router rip and passive -interface s0/0 commands have been issued, the s0/0 interface will not send any RIP updates, but will receive routing updates on that interface

D. When you use the passive - interface command with EIGRP, hel lo messages are not sent out the specified interface

E. After the router eigrp 10 and passive - interface s0/0 commands have been issued, the s0/0 interface will not send any EIGRP updates, but will receive routing updates on that interface

F. When you use the passive - interface command with OSPF, hello messages are not sent out the specified interface