Once the TCP connection is established, which message type initiates the BGP peering process?（）A、OpenB、ActiveC、UpdateD、KeepaliveE、Notification
Once the TCP connection is established, which message type initiates the BGP peering process?（）
- A、Open
- B、Active
- C、Update
- D、Keepalive
- E、Notification
相关考题：
●The TCP protocolis a (71) layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides ofthe globe. In other words, each connection creates a (72) witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. Selecting afixed retransnussion time for all connections can result in serious consequences. Ifthe retransmission time does not allow enough time for a (73) to reach the destination and an acknowledgment to reach the source, it can result in retransmission of segments that are still on the way. Conversely, if the retransnussion time is longer than necessary for a short path, it may result in delay for the application programs.Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (74)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. Retransmission time can be made(75) by basing it on the round-trip time (RTT). Several formulas are used for this purpose.(71) A.physicalB.networkC.transportD.application(72) A.pathB.windowC.responseD.process(73) A.processB.segmentC.programD.user(74) A.connectionsB.requestsC.acknowledgmentsD.datagrams(75) A.longB.shortC.fixedD.dynamic
The TCP protocolis a (71) layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides ofthe globe. In other words, each connection creates a (72) witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. Selecting afixed retransnussion time for all connections can result in serious consequences. Ifthe retransmission time does not allow enough time for a (73) to reach the destination and an acknowledgment to reach the source, it can result in retransmission of segments that are still on the way. Conversely, if the retransnussion time is longer than necessary for a short path, it may result in delay for the application programs.Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (74)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. Retransmission time can be made(75) by basing it on the round-trip time (RTT). Several formulas are used for this purpose.A.physicalB.networkC.transportD.application@@@SXB@@@A.pathB.windowC.responseD.process@@@SXB@@@A.processB.segmentC.programD.user@@@SXB@@@A.connectionsB.requestsC.acknowledgmentsD.datagrams@@@SXB@@@A.longB.shortC.fixedD.dynamic
Which statement is true when express AV detects a virus in TCP session?() A. TCP RST is sent and a session is restarted.B. TCP connection is closed gracefully and the data content is dropped.C. TCP traffic is allowed and an SNMP trap is sent.D. AV scanning is restarted.
Once the TCP connection is established, which message type initiates the BGP peering process?() A. OpenB. ActiveC. UpdateD. Notification
Which Packet Flow Acceleration feature is most effective for short－lived TCP sessions?() A. Active Flow PipeliningB. Fast Connection SetupC. TCP Acceleration (AFP)D. Forward Error Correction
What are three characteristics of UDP?() A. UDP is faster than TCPB. UDP operates at the Transport LayerC. UDP is connection-orientedD. UDP data is sent best-effortE. UDP is more reliable than TCP
Above is the output from show ip bgp neighbors command. What is line 21 stating about the BGP connection?() A. the number of consecutive TCP connections to the specified remote neig hborB. the number of total TCP connections that the router hasC. the number of times the router has established a TCP connectionD. the number of neighbors that the router has
For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?() A. The router will not accept connections from the peer.B. BGP can exchange routing information in this state.C. The router is listening on its server port for connection requests from the peer.D. The router ha s sent out an active TCP connection request to the peer.
Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive （74）faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. A.connections B.requests C.acknowledgmentsD.datagrams
In other words, each connection creates a （72） witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. A.path B.window C.response D.process
Which feature is a potential security weakness of a traditional stateful firewall？（）A、It cannot support UDP flows.B、It cannot ensure each TCP connection follows a legitimate TCP three-way handshake.C、It cannot detect application-layer attacks.D、The status of TCP sessions is retained in the state table after the sessions terminate.
Which statement is true when express AV detects a virus in TCP session?（）A、TCP RST is sent and a session is restarted.B、TCP connection is closed gracefully and the data content is dropped.C、TCP traffic is allowed and an SNMP trap is sent.D、AV scanning is restarted.
What are two reasons for packet loss on a VoIP connection？（）A、serialization delayB、overrunC、full buffers and queuesD、propagation delayE、shaping delayF、TCP header errors
Which type of attack is characterized by a flood of packets that are requesting a TCP connection to a server（）。A、denial of serviceB、brute forceC、reconnaissanceD、Trojan horse
Which information is stored in the stateful session flow table while using a stateful firewall？（）A、the inside private IP address and the translated inside global IP addressB、the source and destination IP addresses， port numbers，TCP sequencing information， and additional flags for each TCP or UDP connection associated with a particular sessionC、the outbound and inbound access rules （ACL entries）D、all TCP and UDP header information only
What are three characteristics of UDP?（）A、UDP is faster than TCPB、UDP operates at the Transport LayerC、UDP is connection-orientedD、UDP data is sent best-effortE、UDP is more reliable than TCP
Which Packet Flow Acceleration feature is most effective for short-lived TCP sessions?（）A、Active Flow PipeliningB、Fast Connection SetupC、TCP Acceleration (AFP)D、Forward Error Correction
单选题Which information is stored in the stateful session flow table while using a stateful firewall？（）Athe inside private IP address and the translated inside global IP addressBthe source and destination IP addresses， port numbers，TCP sequencing information， and additional flags for each TCP or UDP connection associated with a particular sessionCthe outbound and inbound access rules （ACL entries）Dall TCP and UDP header information only
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