1. The growing importance of WANs in corporations has created the need for effective SLAs.

2. Frame relay has enabled network managers to keep an eye on and control various critical performance factors.

3. Service-level guarantees require frame relay–service providers to provide some type of economic relief should they fail to meet their contractual obligations.

4. SLAs covering individual components unfortunately may contribute to higher downtime than those covering entire networks.

5. Most carriers demand a minimum number of sites (usually ten) before they enter into negotiation of SLAs.

6. What items may be excluded from SLAs?

7. What factors contribute to a quality WAN implementation?

8. What are some of the components of a frame relay SLA?

9. Most carriers are committing to a monthly availability guarantee of at least _____.

10. Once WAN–service levels are established, they must be _______.