2014年思科认证考试CCNA备考模拟试题七
为了帮助考生们复习好《思科认证：CCNA认证学科》，我们考吧网整理了一些关于思科认证：CCNA认证模拟试题，本次汇编的模拟试题希望对你的考试有所帮助，预祝你考试顺利
1: 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.
2: which of the following are used by tcp to ensure reliable delivery of data? (choose two.)
a. mac address resolution
b. sequence numbers
c. acknowledgments(GbbFi, tk k&dF={(GbbFi, tk k&dF={t$
d. ping
e. routing updates
3: you discover that you are able to adjust the window size of the tcp segment. you increase the window size to test the results. what will you observe happening on your network?
a. increased throughput
b. decreased throughput
c. increased latency
d. decreased reliability
4: 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 192.168.1.64/26 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. 255.255.255.128
b. 255.255.255.192
c. 255.255.255.224
d. 255.255.255.240
e. 255.255.255.248
5: you have subnetted the 210.106.14.0 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
6: identify three valid host addresses in any subnet of the 201.168.27.0 network, assuming a fixed subnet mask of 255.255.255.240. (choose three.)
a. 201.168.27.33
b. 201.168.27.112
c. 201.168.27.119
d. 201.168.27.126
e. 201.168.27.175
f. 201.168.27.208
7: what is the subnetwork address for a host with the ip address 201.100.5.68/28?
a. 201.100.5.0
b. 201.100.5.32
c. 201.100.5.64
d. 201.100.5.65
e. 201.100.5.31
f. 201.100.5.1
8 which of the following protocols uses a three-way handshake mechanism to establish sessions?
a. tcp
b. ip
c. udp
d. ipx
e. frame relay
9 your junior network administrator wants to know what the default subnet mask is for a class c ip address. what do you tell him?
a. 255.0.0.0]6l
b. 255.255.0.0
c. 255.245.255.0
d. 255.255.255.0
e. 255.255.255.255
10: an application needs to have reliable, end-to-end connect-ivity. which of the following protocols will give you reliable connectivity?
a. tcp
b. udp
c. ip
d. icmp
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