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考试代号： N10-004
认证名称：CompTIA Network+ (2009 Edition)
版本号：V10.02
考题数量：437道
更新日期：2010-11-11
1.In which of the following topologies could the failure of one machine cause the entire network to stop functioning?
A. Mesh
B. Token ring
C. Star
D. Spanning tree
Answer: B
2.Which of the following has a maximum data rate of 11Mbps?
A. 802.11n
B. 802.11g
C. 802.11b
D. 802.11a
Answer: C
3.A small company needs to temporarily extend its call center by ten employees. The company decides to rent office space on the opposite side of the building; the two spaces are 400 feet (122 meters) apart. Which of the following is the MOST cost effective solution?
A. Install a new T1 line for that office.
B. Use a wireless repeater and a WAP.
C. Connect the two offices with fiber.
D. Install gigabit switches and run Ethernet.
Answer: B
4.A user contacts a technician and states, ° The net wor ki s down¡± Af ter fur t her i nvest i gat i on t he user I unable to get to a file share on the LAN. Which of the following is the NEXT step the technician should take to help determine the root cause of the problem?
A. Have the user ping the default gateway.
B. Unplug and then plug the network cable back in.
C. Reboot the core router.
D. Have the user run netstat.
Answer: A
5.A network sniffer has been set up on a switch port in an attempt to monitor traffic from another switch
port. Which of the following technologies would allow this to work in a switched network?
A. Spanning tree
B. Port trunking
C. Port mirroring
D. VLANs
Answer: C
6.A firewall acts at which layer of the OSI model to perform content filtering?
A. Session
B. Presentation
C. Network
D. Application
Answer: D
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