CompTIA Network+ (2009 Edition) 认证作为全球IT领域专家热门 CompTIA认证之一，是许多大中IT企业选择人才标准的必备条件。

Comptia N10-004 Exam 
CompTIA Network+ (2009 Edition)

科目编号：N10-004
科目名称：CompTIA Network+ (2009 Edition)
考题数目：490 Q&As

CompTIA N10-004 pdf下载

1. Which of the following does a star ring topology use for data transfer?
A.CSMA/CD
B.CSMA/CA
C.CHAP
D.Token passing
Answer: D

2. In the OSI model, which of the following layers would be the cause of a session time-out while browsing the web?
A.Layer 2
B.Layer 3
C.Layer 5
D.Layer 7
Answer: C

3. Which of the following network hardware allows the MOST network traffic collisions?
A.WAP
B.Hub
C.Switch
D.Router
Answer: B

4. Which of the following is a valid IP address in the public addressing scheme?
A.10.20.1.1
B.168.192.10.1
C.233.10.20.1
D.172.20.10.1
Answer: B

5. On a Windows network, users are reporting that they cannot access any network resources. The users can ping the IP address and connect to the network resource using the IP address. Which of the following is the cause of the problem?
A.The file server is offline.
B.The DNS server is not resolving correctly.
C.The DHCP server is not assigning correct IP addresses.
D.The domain controller is not responding.
Answer: B

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