单选题In BGP graceful restart， how does a peer router indicate the end of a route exchange？（）A An open message with the E bit set.B An update message with the E bit set.C An open message with an end-of-RIB marker.D An update message with an end-of-RIB marker

第1题：

第2题：

In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）

• A、The peer router sends an end-of RIB message to the restarting router
• B、The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
• C、The restarting router does not remove any stale prefixes after the timer for stale entries expires
• D、The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updates
• E、The restarting router removes any stale prefixes after the timer for stale entries expires

第3题：

第4题：

In which two ways does the BGP graceful capability preserve prefix information during a restart？（）

• A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.
• B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.
• C、The peer router sends an end-of-RIB message to the restarting router.
• D、The restarting router removes any stale prefixes after the timer for stale entries expires.
• E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.

第5题：

You have an Organization 2010.Internal user named User1 sends a confidential message to another internal user named User2.User1 does not have any administrative privileges in theory. You need to ensure User1 can identify whether the message was successfully delivered？. What should you instruct User1 to do？（）

• A、View the message headers in the sent item folder
• B、Open Microsoft Outlook and modify Read Receipt Settings
• C、Open Microsoft Outlook and modify Delivery Receipt Settings
• D、Open the ECP and select Organize E-Mail

第6题：

Which of the following answers is most true about the BGP Update message?（）

• A、It lists a set of path attributes, along with a list of prefixes that use those PAs
• B、It lists a prefix/length, plus the PA settings for that prefix
• C、It  lists withdrawn routes, but never in the same Update message as newly advertised routes
• D、A single Update message lists at most a single prefix/lengtH

第7题：

In which of the following BGP-related events is an End-of-RIB （EOR） message sent？（）

• A、Following a link flap in the BGP speaker’s AS
• B、During initial convergence.
• C、Following a Route Processor Switchover.
• D、Just before sending a CEASE message to tear down the session.
• E、During capability negotiation

第8题：

第9题：

使用displabgppeer命令锁查看的邻居状态为Established时，表示从对等体处接收到了（）。

• A、Open Message
• B、Keepalive Message
• C、Establish Message
• D、Update Message

第10题：

A network administrator enters the command clear ip route * and as a result he sees the message，"Please update the network documentation to record why the ip routing table was cleared." Which router feature was used in this case？（）

• A、NetFlow
• B、SNMP
• C、Debug
• D、SysLog
• E、EEM
• F、CEF