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MTCNA模拟测试题一

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发表于 2016-8-2 18:11:33 | 显示全部楼层 |阅读模式
模拟题一
Certification example test
1. What protocol does ping use?  
使用的是ICMP协议,是“Internet Control Message Protocol”(Internet控制消息协议)的缩写,是TCP/IP协议族的一个子协议,用于在IP主机、路由器之间传递控制消息。
ARP

UDP

*ICMP

TCP

2. Select valid MAC-address   MAC地址为16进制,6个字节。
MAC(Medium/Media Access Control)地址,用来表示互联网上每一个站点的标识符,采用十六进制数表示,共六个字节(48位)。
G2:60:CF:21:99:H0

192.168.0.0/16

AEC8:21F1:AA44:54FF:1111:DDAE:0212:1201

*00:00:5E:80:EE:B0

3. You have a router with configuration
- Public IP :202.168.125.45/24
- Default gateway:202.168.125.1
- DNS server: 248.115.148.136, 248.115.148.137
- Local IP: 192.168.2.1/24

Mark the correct configuration on client PC to access to the Internet
IP:192.168.2.2/24 gateway:202.168.125.45

IP:192.168.0.1/24 gateway:192.168.2.1

*IP:192.168.2.115/24 gateway: 192.168.2.1

IP:192.168.1.223/24 gateway:248.115.148.136

IP:192.168.2.253/24 gateway:202.168.0.1

4. Is ARP used in the IPv6 protocol ?  F
地址解析协议是IPv4中必不可少的协议,但在IPv6中将不再存在地址解析协议。
在IPv6中,地址解析协议的功能将由NDP邻居发现协议,Neighbor Discovery Protocol)实现

5. Which computers would be able to communicate directly (without any routers involved):
192.168.17.15/29 and 192.168.17.20/28

192.168.0.5/26 and 192.168.0.100

*10.10.0.17/22 and 10.10.1.30/23

*10.5.5.1/24 and 10.5.5.100/25

6. Which of the following is NOT a valid MAC Address?
95:B5:DD:EE:78:8A

88:0C:00:99:5F:EF

*80:GF:AA:67:13:5D

EA:BA:AA:EE:FF:CB

13:16:86:53:89:43

7. What is term for the hardware coded address found on an interface?
Interface Address

*MAC Address

FQDN Address

IP Address

8. The basic unit of a physical network (OSI Layer 1) is the:  ???
*Bit

Header

Byte

Frame

9. A network ready device is directly connected to a MikroTik RouterBOARD 750 with a correct U.T.P. RJ45 functioning cable. The device is configured with an IPv4 address of 192.168.100.70 using a subnet mask of 255.255.255.252. What will be a valid IPv4 address for the RouterBOARD 750 for a successful connection to the device?     (192.168.100.68~192.168.100.71)
192.168.100.70/255.255.255.252

192.168.100.68/255.255.255.252

*192.168.100.69/255.255.255.252

192.168.100.71/255.255.255.252

10. Select valid subnet masks:    224.0.0.0 开始有效
192.0.0.0

*255.255.224.0

*255.192.0.0

255.255.192.255

11. In MikroTik RouterOS, Layer-3 communication between 2 hosts can be achieved by using an address subnet of:
*/30

/31

*/32

*/29

12. Select which of the following are 'Public IP addresses':   172.16.0.0-172.31.0.0 为私有地址
*11.63.72.21

10.110.50.37

*172.168.254.2

172.28.73.21

192.168.0.1

13. How many usable IP addresses are there in a 20-bit subnet?  可用地址为40964,共4096个减于广播地址2个。
2046

2047

2048

4096

*4094

14. How many layers does Open Systems Interconnection model have?
7层。
由下至上有:物理层,数据链路层,网络层,传输层,会话层,表示层,应用层。
5

*7

6

9

12

15.  Collisions are possible in full-duplex Ethernet networks。    F错误
CCNA学习指南 第六版 P26:全双工以太网有专用冲突域(小字)重点:在全双工模式下,不会有冲突域。

16. Choose all valid hosts address range for subnet 15.242.55.62/27
*15.242.55.33-15.242.55.62

15.242.55.32-15.242.55.63

15.242.55.31-15.242.55.62

15.242.55.33-15.242.55.63

17. MAC layer by OSI model is also known as  数据链路层
Layer 1 物理层(Physical Layer):

Layer 7 应用层 (Application):

Layer 3 网络层 (Network):
Layer 4 传输层 (Transport):
Layer 5 会话层(Session Layer):

*Layer 2 数据链路层 (Link):

Layer 6 表示层(Presentation Layer):

18. Which of the following are valid IP addresses?
*192.168.13.255
*1.27.14.254
*10.10.14.0
192.168.256.1

19. Which of the following protocols / port s are used for SNMP. (Simple Network Managemnt Protocol)
标准的SNMP服务使用161和162端口,厂商私有的实现一般使用199、391、705和1993端口
*UDP 162

TCP 162

*UDP 161

TCP 25

TCP 161

TCP 123

20. The network address is
*The first address of the subnet

The last address of the subnet

The first usable address of the subne
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