N10-004章节练习(2018.08.08)

单项选择题
For an enterprise to use one of the reserved private IP address ranges, as best practice they shouldcoordinate with:（）
A.their legal department
B.IANA
C.IEEE
D.their IT department
单项选择题
Which of the following is resistant to crosstalk?（）
A.1000Base-T
B.10GBase-CX
C.100Base-FX
D.STP
单项选择题
Keyword and blacklist filtering would be handled at which level in a network?（）
A. Layer 2 managed switch
B. DHCP server
C. Hardware firewall
D. Bridge
单项选择题
A network administrator has been receiving work orders about poor voice quality crossing a branch T1.The cause is determined to be users running high bandwidth file sharing applications across the T1sending large packets delaying the smaller voice streams.Which of the following would improve voice quality?（）
A.Configure traffic shaping to reduce the bandwidth available to the file sharing application.
B.Configure a separate VLAN for the IP phones.
C.Install a content caching proxy at the branch to reduce inbound WAN traffic.
D.Upgrade switches to provide higher bandwidth ports for workstations and IP phones.
单项选择题
A second network card in a server that activates if the primary card fails is an example of which of the following network performance optimization?（）
A.Load balancing
B.QoS
C.High availability
D.Fault tolerance
单项选择题
A web server is running correctly but sending a RST packet to any client trying to connect using HTTP on TCP port 80.Which of the following tools should be used to determine the listening port of the web server?（）
A.Route
B.Ifconfig
C.Netstat
D.Nslookup
单项选择题
Which of the following network protocols is used to ensure consistent time across network devices on the domain?（）
A.NTP
B.FTP
C.RTP
D.IGMP
单项选择题
A new segment needs to be added to a network to provide access for 64 servers. Which of thefollowing subnets will provide the needed access and still conserve IP addresses?（）
A.192.168.1.0/26
B.192.168.1.0/23
C.192.168.1.0/24
D.192.168.1.0/25
单项选择题
A company has installed a new 802.11g point-to-point connection between two buildings and isexperiencing low throughput across the link. The current setup involves a wireless bridge on the roof with an omni-directional antenna. Which of the following would BEST improve the link performance?（）
A. Replace the wireless bridges with wireless access points.
B. Install bi-directional amplifiers at both sites.
C. Configure channel hopping on both wireless bridges.
D. Replace the omni-directional antennas with Yagi antennas
单项选择题
After a technician came out and installed a new wireless router, one of the wired workstations beganhaving problems connecting to the file server. This is only an intermittent problem.Which of the following actions will the technician MOST likely perform to resolve this problem?（）
A. Change the router's SSID
B. Move the router's location
C. Check user permissions
D. Check the cable ends