When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.空白处（23）应选择（）A、resetB、acknowledgmentC、sequenceD、synchroizer
When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination. 空白处（23）应选择（）
- A、reset
- B、acknowledgment
- C、sequence
- D、synchroizer
相关考题：
when the system upon which a transport entity is running fails and subsequently reatarts，the（）information of all active connections is lost.the affected connections become half-open，as the side that did not fail does not yet realize the promble. The still active side of a half-open connections using a（）timer.this timer measures the time transport machine will continue to await an（）of a transmitted segment after the segment has been retransmitted the maximum number of times.when the timer（），the transport entity assumes that either the other transport entity or the intervening network has failed.as a result，the timer closes the connection，and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restart，half-open connections can be teminated more quickly by the use of the RST segment.the failed side returns an RST I to every segment I that it receives.when the RST I reaches the other side，it must be checked for validity dased on the （）number I，as the RST could be in response to an old segment .if the reset is valid，the transport entity performs an abnormal termination.A.data B.state C.signal D.control A.give-up B.abandon C.quit D.connection A.reset B.acknowledgment C.sequence D.synchroizer A.stops B.restarts C.expires D.abandons A.sequence B.acknowledgment C.connection D.message
Which two statements are true regarding the starting of the database instance using the following command?()SQLSTARTUP UPGRADE A. It enables all system triggers.B. It allows only SYSDBA connections.C. It ensures that all job queues remain active during the upgrade process.D. It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.
Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with(71), and that it has a mechanism for(72)graphical files. Display text, display graphics, and(73)hypefiinks, there's 99 percent of the(74)value. That's not to say that the manufacturers didn't go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can't wait to delete from your favorites of bookmarks menu? Remember when client-side Java applets were supposed to become the preferred(75)for application development? Remember frames and all their nasty side effects?A．superlinksB．linksC．hyperlinksD．connections
How does the Juniper DX accelerate web servers? () A. by translating HTTP requests to HTTPSB. by refusing client connections that are unnecessarily refreshed by end usersC. by multiplexing numerous client-side connections to fewer server-side connectionsD. by multiplexing numerous server-side connections to fewer client-side connections
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.
When the system upon which a transport entity is running fails and subsequently restarts, the(66)information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connection can close the connection using a(67)timer. This timer measures the time the transport machine will continue to await an(68)of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer(69), the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment. The failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the(70)number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.A．dataB．stateC．signalD．control
Which command shows your active Telnet connections?（）A、show sessionB、show cdpneighborsC、show usersD、show queue
It’s a configuration that experts are calling a "firewall sandwich，" with the second firewall providinga second level of load balancing after traffic down. What is meant by the term "firewall sandwich"？（）A、 single layer of firewallingB、 multiple layers of firewallingC、 firewall connections in either an active or standby stateD、 an architecture in which all traffic between firewalls goes through application-specific servers
Which is true when describing a connection replication in Cisco ACE？（）A、 It is not supported for SSL connections.B、 It is not supported for non-SSL connections.C、 It can only be configured manually.D、 It has a maximum limit of 50，000 replicated connections.
What is meant by the term "firewall sandwich"？（）A、multiple layers of firewallingB、a method of operating firewalls from multiple vendorsC、firewall connections in either an active or standby stateD、an architecture in which all traffic between firewalls goes through application-specific serversE、an architecture in which all traffic between firewalls goes through application-specific gateways
When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.空白处（21）应选择（）A、dataB、stateC、signalD、control
Which of the following is TRUE about the ate program？（）A、When running ate for the first time it will prompt for all the required information and configure all the required devicesB、The program is used by cu to communicate to a remote systemC、The program is used for remote communications between the host and a remote system using a modem or null modem via a tty portD、The program ate calls cu to communicate with the remote system
How does the Juniper DX accelerate web servers? （）A、by translating HTTP requests to HTTPSB、by refusing client connections that are unnecessarily refreshed by end usersC、by multiplexing numerous client-side connections to fewer server-side connectionsD、by multiplexing numerous server-side connections to fewer client-side connections
Which command shows your active Telnet connections?（）A、show sessionB、show cdp neighborsC、show usersD、show queue
When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.空白处（25）应选择（）A、sequenceB、acknowledgmentC、connectionD、message
Which of the following commands will show all active TCP/IP network connections?（）A、PINGB、NETSTATC、NETD、TRACERT
You are maintaining the database of a company. The listener process， listener1， is configured for remote access. You have issued the following command： LSNRCTLSTATUS listener1 Which information will NOT be displayed when you issue the above command？（） A、 whether the password is set in the listener or a file or notB、 the number of client connections the service handler has refusedC、 the information will be displayed whether the instance can accept connections or notD、 the protocol addresses on which the listener is configured to listen
Which two statements are true regarding the starting of the database instance using the following command？（） SQLSTARTUP UPGRADE A、 It enables all system triggers.B、 It allows only SYSDBA connections.C、 It ensures that all job queues remain active during the upgrade process.D、 It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.
You have a server that runs Windows Server 2003 Service Pack 2 （SP2）.You need to get a list of all the open connections on the server and all the port numbers used by the connections. Which tool should you use？（）A、NbtstatB、NetshC、NetstatD、Nslookup
You need to design a method to encrypt confidential data. Your solution must address the concerns of the chief information officer. What should you do？（）A、Encrypt customer information when it is stored and when it is being transmittedB、Require encrypted connections to the public Web site， which is hosted on the Web server on the perimeter networkC、Encrypt all marketing information on file servers and client computersD、Require encrypted connections to all file servers
多选题A Mysql instance is running on a dedicated server. Developers access the server from the same network subnet. Users access the database through an application that is running on a separate server in a DMZ. Which two will optimize the security of this setup?（）ADisabling connections from named pipes or socket files (depending on the operating system of the server)BEnabling and using SSL for connections to the Mysql databaseCInstalling Mysql on the application server, and running the database and application on the same serverDStarting the server with – bind- address=0.0.0.0 specifiedERunning the server with – skip-networking specifiedFLimiting logins to originate from the application server or the server's subnet'
单选题You are maintaining the database of a company. The listener process， listener1， is configured for remote access. You have issued the following command： LSNRCTLSTATUS listener1 Which information will NOT be displayed when you issue the above command？（）A whether the password is set in the listener or a file or notB the number of client connections the service handler has refusedC the information will be displayed whether the instance can accept connections or notD the protocol addresses on which the listener is configured to listen
单选题When Robert discovered that the company was engaged in dishonest business, he immediately _____ all connections with it.AoffsetBseparatedCseveredDvanquished
单选题Which is true when describing a connection replication in Cisco ACE？（）A It is not supported for SSL connections.B It is not supported for non-SSL connections.C It can only be configured manually.D It has a maximum limit of 50，000 replicated connections.
多选题Which two statements are true regarding the starting of the database instance using the following command?（） SQLSTARTUP UPGRADEAIt enables all system triggers.BIt allows only SYSDBA connections.CIt ensures that all job queues remain active during the upgrade process.DIt sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.