思科認(rèn)證考試題庫(kù)

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2017年思科認(rèn)證考試題庫(kù)

　　思科制造的路由器、交換機(jī)和其他設(shè)備承載了全球80%的互聯(lián)網(wǎng)通信，成為硅谷中新經(jīng)濟(jì)的傳奇。下面是小編整理的關(guān)于思科認(rèn)證考試題庫(kù)，歡迎大家參考!

2017年思科認(rèn)證考試題庫(kù)

　　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. 10.23.45.67

　　b. 126.21.34.56

　　c. 172.16.32.1

　　d. 172.31.234.55

　　e. 192.169.4.5

　　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 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

　　8: 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

　　9: 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

　　10: what is the subnetwork address for a host with the ip address 201.100.5.68/28?