单选题A machine’s ONLY external interface is configured with an address of 192.168.5.1 and a netmask of 255.255.255.0.  No slots are available for expansion. Which of the following procedures should be performed to make it function as a gateway？（）A Enable ip

第1题：

Which of the following is not an essential prerequisite for AutoQoS to be correctly applied to aninterface？ （Choose all that apply.）（）

• A、The interface must be configured as a Multilink PPP interface
• B、The correct bandwidth should be configured on the interface
• C、A QoS policy must not be currently attached to the interface
• D、CEF must be enabled
• E、AutoQoS must be enabled globally before it can be enabled on the interface
• F、An IP address must be configured on the interface if its speed is equal to or less than 768 kbps

第2题：

A TCP/IP application receives files from a remote machine.  The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

• A、 Increase the size of thewall
• B、 Increase the size of sb_max
• C、 Increase the size of tcp_recvspace
• D、 Increase the size of tcp_sendspace

第3题：

When you enable port security on an interface that is also configured with a voice VLAN，  what is the maximum number of secure MAC addresses that should be set on the port？（）

• A、No more than one secure MAC address should be set.
• B、The default will be set.
• C、The IP phone should use a dedicated port， therefore only one MAC address is needed per port.
• D、No value is needed if the switchport priority extend command is configured. 
• E、No more than two secure MAC addresses should be set.

第4题：

In a cluster using /etc/hosts for name resolution， which of the following describes the minimum requirementsfor the /etc/hosts file？（）

• A、IP address and IP label of each service and boot interface in the cluster
• B、IP address and IP label of each service and boot interface in the cluster， loopback interface， and the hostname of the node
• C、IP address and IP label of each service and boot interface in the cluster， the loopbackinterface， and the cluster gateway
• D、IP address and IP label of each service and boot interface in the cluster， the loopbackinterface， the cluster gateway， and the subnet network addresses

第5题：

A machine’s ONLY external interface is configured with an address of 192.168.5.1 and a netmask of 255.255.255.0.  No slots are available for expansion. Which of the following procedures should be performed to make it function as a gateway？（）

• A、Enable ipforwarding only
• B、Configure an alias on the same interface and enable ipforwarding
• C、Add a second interface into the same subnet and enable ipforwarding
• D、Add a second interface into a different subnet， and enable ipforwarding

第6题：

Your network contains a server named Server1. Server1 runs Windows Server 2008 R2 and has a single network connection. The connection is configured to use a default gateway address of 10.0.0.1.The default gateway has a metric value of 100.You configure a second default gateway that uses an address of 10.0.0.2.You need to ensure that 10.0.0.2 is only used as the default gateway if 10.0.0.1 is unreachable. What should you do？（）

• A、For the interface, set the interface metric to 100.
• B、For the 10.0.0.2 gateway, set the metric to 50.
• C、For the 10.0.0.2 gateway, set the metric to 200.
• D、For the 10.0.0.1 gateway and the 10.0.0.2 gateway, enable automatic metric.

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第13题：

You are using AutoQoS Enterprise and realize that the results are not what you expected. Whichof the following are possible reasons for AutoQoS not functioning correctly？（Choose all thatapply.）（）

• A、The interface you configured for AutoQoS is set to half-duplex
• B、AutoQoS was configured on only one end of the link
• C、The interface you configured for AutoQoS has no IP address
• D、The interface’s bandwidth is not correctly configured
• E、CEF is not enabled on the interface
• F、You enabled AutoQoS on the interface but forgot to enable globally first

第14题：

A TCP/IP application is transferring files from a personal machine to a remote machine.  The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size.  Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

• A、 Increase the size of thewall
• B、 Increase the size of sb_max
• C、 Increase the size of tcp_recvspace
• D、 Increase the size of tcp_sendspace

第15题：

When configuring an interface using SMIT and Further Configuration with an IP address and netmask， which of the following outcomes indicates how the routing tables will be affected？（）

• A、A subnet route is automatically added
• B、A default route is automatically added
• C、All other routes are automatically added
• D、The routing table is not affected

第16题：

A basic TCP/IP configuration on the system has just been completed. A remote system can be pinged by IP address but not by hostname. Which of the following actions should be performed next in an effort to successfully ping using the hostname?（）

• A、Check routing
• B、Check inetd.conf
• C、Check /etc/resolv.conf
• D、Check interface with ifconfig

第17题：

Given a new implementation， which of the following procedures should be used to determine a default gateway’s IP address？（）

• A、The address will always end in 255.
• B、The address will always be the first interface’s IP address
• C、The address will always be the network with a 1 as the final octet.
• D、It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP addres

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