2017年思科认证考试题库
思科制造的'路由器、交换机和其他设备承载了全球80%的互联网通信,成为硅谷中新经济的传奇。下面是小编整理的关于思科认证考试题库,欢迎大家参考!
1: which of the following protocols is connection-oriented
a. tcp
b. ip
c. ipx
d. frame relay
2: you are using an application on your windows 2000 client machines that provides error correction. you need a protocol to provide fast transport. which protocol should your application use?
a. tcp
b. ip
c. udp
d. spx
e. appletalk
3: when using tcp, after a session is open, the applications can adjust the number of segments they receive before sending an acknowledgment. this behavior is known as ______________.
a. mtu adjustment
b. windowing
c. flexible send path
d. fcs
4: if the destination did not receive a segment, how will the tcp host know to resend the information?
a. the ack received will not include the segment number that was not received.
b. the ack received will include the segment number that was not received.
c. the sending host will send a pack to verify segment receipt.
d. the destination host will send a yack message back to the sending host.
5: you are planning on using a single network that supports 208 users. which ip address class would you choose to be the most efficient?
a. class a
b. class b
c. class c
d. class d
e. class e
6: rfc 1918 defines the private ip address ranges. which of the following ip addresses are considered part of these ranges? (choose three.)
a.
b.
c.
d.
e.
7: you are designing an ip address scheme for your brand new remote office. the vice president of it calls to tell you that you will be in charge of the subnetwork. this supplies you with a single subnetwork with 62 hosts. you need to have at least two subnets with 14 hosts in each subnet. what custom subnet mask should you use?
a.
b.
c.
d.
e.
8: you have subnetted the network with a /24 mask. your boss at acme, inc. wants to know how many usable subnetworks and usable host addresses per subnet this would provide. what should you tell her?
a. one network with 254 hosts
b. two networks with 128 hosts
c. four networks with 64 hosts
d. six networks with 30 hosts
9: identify three valid host addresses in any subnet of the network, assuming a fixed subnet mask of . (choose three.)
a.
b.
c.
d.
e.
f.
10: what is the subnetwork address for a host with the ip address ?
a.
b.
c.
d.
e.
f.
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