CCIE口語考試試題

思科官方宣布從2009年2月1日起，CCIE路由交換的實驗考試增加了口語部分，下面是轉載自國外一個BLOG的一些口語的試題：
Bridging and Switching
Explain the advantages of MSTP (802.1s).
Explain the advantages of RSTP (802.1w).
Explain the differences between 802.1Q and ISL.
IP IGP Routing
Explain the advantages presented by the DUAL algorithm in EIGRP.
Why does OSPF use a DR in an Ethernet LAN environment?
Why does OSPF feature different network types for use in an NBMA area of your network?
BGP
What issues can the use of a peer group solve in BGP?
IP and IOS Features
How can a Cisco router assist a client PC to obtain a DHCP address from a DHCP server located on a remote subnet?
What issue does HSRP help solve?
IP Multicast
Discuss issues that exist with the PIM Dense-Mode protocol.
QoS
Describe differences between Custom Queuing and Class-Based Weighted Fair Queuing.
What are the advantages presented by DSCP markings when compared to the legacy IP Precedence approach?
Security
Describe the basic operation of CBAC on a Cisco router.