2013年3月30日 星期六

The network administrator has asked you to check the status of the workstation's IP stack by pinging the loopback address. 漫步雲端 235


The network administrator has asked you to check the status of the workstation's IP stack by pinging
the loopback address.
Which address would you ping to perform this task?

Workstation A has been assigned an IP address of 192.0.2.24/28. 漫步雲端 234

Workstation A has been assigned an IP address of 192.0.2.24/28.

Workstation B has been assigned an IP address of 192.0.2.100/28.
The two workstations are connected with a straight-through cable.
Attempts to ping between the hosts are unsuccessful.
What two things can be done to allow
communications between the hosts? (Choose two.)



2013年3月25日 星期一

A company implements video conferencing over ip on their ethernet lan.漫步雲端 231

A company implements video conferencing over ip on their ethernet lan.
The users notice that the network slows down,and the video either stutters of fails completely.
What is the most likely reason for this?

Data transfer is slow between the source and destination. 漫步雲端 230

Data transfer is slow between the source and destination.
he quality of service requested by the transport layer in OSI reference model is not being maintained.
 To fix this issue,at which layer should the troubleshooting process being?


2013年3月20日 星期三

Refer to the exhibit.Which WAN protocol is used? 漫步雲端 228

Refer to the exhibit.Which WAN protocol is used?

A network administrator must configure 200 switch ports to accept traffic from only the 漫步雲端 227

A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices.
What would be the most efficient way to configure MAC-level security on all these ports?


2013年3月19日 星期二

2013年3月15日 星期五

Refer to the exhibit.An administrator pings the default gateway at 10.10.10.1 漫步雲端 223

Refer to the exhibit.An administrator pings the default gateway at 10.10.10.1 and sees the output as shown.
At which OSI later is the problem?



2013年3月10日 星期日

Given a subnet mask of 255.255.255.224 漫步雲端 218

  Given a subnet mask of 255.255.255.224
which of the following addresses can be assigned to network hosts?

2013年3月7日 星期四

A national retail chain needs to design an ip addressing scheme to 漫步雲端 214

A national retail chain needs to design an ip addressing scheme to support a nationwide network .
The company needs a minimun of 300 sub-networks and a maximum of 50 host addresses per subnet.
Working with only one class b address,which of the following subnet masks will support an appropriate addressing scheme?

2013年3月2日 星期六