A router that performs Network Address Translation (NAT) is installed between your computer and the Internet. The router fails. You connect the computer directly to the Internet. You need to ensure that the computer is connected to the Internet in the most secure manner possible. What should you do?（）

The cisco ironport portfolio performs which service?（）

EIGRP performs automatic summarization at network boundaries. What administrative distance is given to these EIGRP summary routes?（）

During a cluster synchronization， an administrator inadvertently performs al ctrl ’C’ causing the synchronization to fail. After restarting the resynchronization， the administrator notices a message stating that a previous dare operation has been detected.  What is the best way to resolve this problem？（）  

Which Cisco product performs virtualized Ethernet switching within a VMware ESX host?（）

Which of the following server types performs the same function as the HOSTS file？（）

What are two functions that the parameter max-session performs? （）(Choose two.)

A system administrator performs a full backup every Saturday evening and incremental backups the rest of the week. The system failed on Thursday and needs to be restored. Which backup tapes will be required to restore the system to its most recent recoverable state？（）

You are creating a class that performs complex financial calculations. The class contains a method named GetCurrentRate that retrieves the current interest rate and a variable named currRate that stores the current interest rate. You write serialized representations of the class. You need to write a code segment that updates the currRate variable with the current interest rate when an instance of the class is deserialized. Which code segment should you use?（）

A user performs an update on a table. Shortly after committing the transaction， they realize that they had an error in their WHERE clause causing the wrong rows to be updated. Which Flashback option would allow you to undo this transaction and restore the table to its previous state？（）