多选题SONET Path Terminating Equipment (PTE) requires which three line codes to be supported for DS1 and DS3 circuits?（） (Choose three.)AAMIBESFCDUSDSSMEB3ZSFB8ZS

第1题：

第2题：

第3题：

第4题：

For the following statements， which one is perceived as a drawback of implementing Fibre ChannelAuthentication Protocol （FCAP）？（）

• A、It is restricted in size to only three segments
• B、It requires the use of netBT as the network protocol
• C、It requires the implementation of IKE
• D、It relies on an underlying Public Key Infrastructure

第5题：

SONET’s three layers are（）.

• A、Section
• B、Line
• C、Frame
• D、Path
• E、DS1

第6题：

第7题：

Which three are advantages of SONET？（）

• A、Allows the transportation of all forms of traffic
• B、Multiplexing is easy
• C、Clocks do not need to be synchronized
• D、Reduces network complexity and cost
• E、Padding is not necessary and not permitted

第8题：

第9题：

When policy - based routing (PBR) is being configured, which three criteria can the set command specify?（）

• A、all interfaces in the path toward the destination
• B、all networks in the path toward the destination
• C、adjacent next hop router in the path toward the destination
• D、all routers in the path toward the destination
• E、all interfaces through which the packets can be routed
• F、type of service and precedence in the IP packets

第10题：

UPSR protection switching is initiated by （）, while BLSR is initiated by （）.

• A、the K1 SONET byte； the K2 SONET byte
• B、the K2 SONET byte；the K1 SONET byte
• C、transmitter switching；receiver detection
• D、Line Overhead bytes；Path Overhead bytes
• E、Path Overhead bytes；Line Overhead bytes