When creating a class that associates a set of keys with a set of values， which of these interfaces is most applicable？（） 

You have created a job class， CUST_JOB_1， with two jobs， CUST_JOB_1_A and CUST_JOB_1_B. Which two statements are true？ （）

When is a first-hop redundancy protocol needed in the distribution layer？（）

What happens when the CRS Engine fails in a High-Availability CRS deployment? （）

On a router that is configured with multiple IP SLA probes， which command can be used to manage the CPU load that was created by the periodic probing？（）

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival. 

Which step is designed to prompt a user to press or say a single-digit number to perform a specific function? （）

Which command will create a group called ’delivery’ and set the administrators to ’john’ and ’mary’？（）  

What command should a system administrator run after using an editor to create the /etc/tunables/nextboot file？（）

The George Char Broiler Company wants to create its own locale file to accommodate a non-supported German language among its customers from Brunswick. This is the first locale file the company has tried to create. Which tag number will it assign to this locale?（）

You work as a database administrator for Certkiller .com. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）

You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）