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the users connecting to the network is required for security. additionally, some employees will be dialing long distance and will need callback support. which protocol is the best choice for these remote access services?

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a: 802.1

b: frame relay

c: hdlc

d: ppp

e: slip

f: pap

correct answers: d

18.which statements describe the routing protocol ospf? (choose three.)

a:it supports vlsm.

b:it is used to route between autonomous systems.

c:it confines network instability to one area of the network.

d:it increases routing overhead on the network.

e:it allows extensive control of routing updates.

f:it is simpler to configure than rip v2.

correct answers: a, c, e

20.what is the subnetwork number of a host with an ip address of 172.16.210.0/22?mZ;HJ%j0WK.\EIg-[ ´ËÎÄתÌùÓÚÎÒµÄÑ§Ï°ÍøITÈÏ֤˼¿ÆÈÏÖ¤ http://www.Gzu521.com]mZ;HJ%j0WK.\EIg-

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