对
错
第1题：
A. MPLS
B. Load Balancing
C. Class Based Forwarding
D. Filter Based Forwarding
第2题：
A. The source and destination addresses
B. The destination port number
C. The destination address
D. The source address
E. All of the above
第3题：
Krashen’s Monitor Theory belongs to nativist theories.()
第4题：
What is the function of the affective filter?
According to the affective filter hypothesis, comprehensible input may not be utilized by second language acquirers if there is a “mental block” that prevents them from fully profiting from it. The affective filter acts as a barrier to acquisition: if the filter is “down”, the input reaches the LAD and becomes acquired competence; if the filter is “up”, the input is blocked and does not reach the LAD. Thus “input is the primary causative variable in SLA, affective variables acting to impel or facilitate the delivery of input to the LAD.”
略
第5题：
第6题：
The API changes should provide both source and binary （71） for programs written to the original API.That is,existing program binaries should continue to operate when run on a system supporting the new API.In addition,existing （72） that are re-compiled and run on a system supporting the new API should continue to operate.Simply put,the API （73） for multicast receivers that specify source filters should not break existing programs.The changes to the API should be as small as possible in order to simplity the task of converting existing （74） receiver applications to use source filters.Applications should be able to detele when the new （75） filter APIs are unavailable(e.g., calls fail with the ENOTSUPP erroe) and react gracefully(e.g., revert to old non-source-filter API or display a meaningful error message to the user).
71.
A.capability
B.compatibility
C.labiality
D.reliability
第7题：
A.protocol
B.VLAN number
C.TCP or UDP port numbers
D.source switch port number
E.source IP address and destination IP address
F.source MAC address and destination MAC address
第8题：
You have a firewall filter containing two terms applied in an inbound direction on a customer interface.You would like this filter to protect your network from a spoofed denial of service attack. Which match criterion should be configured ito identify unwanted packets?（）
A. from source-port
B. from source-address
C. from destination-address
D. from destination-port
第9题：
For Krashen, the affective filter is the principal source of individual difference in second language acquisition.（）
A对
B错
第10题：
For Krashen, the affective filter is the principal source of individual difference in second language acquisition.（）