更多"[单选题]Which statement is true regard"的相关试题:
[单选题]
Which statement is true concerning SNATs using automap?
A.Only specified self-IP addresses are used as automap addresses.
B.SNATs using automap will translate all client addresses to an automap address.
C.A SNAT using automap will preferentially use a floating self-IP over a nonfloating self-IP.
D.A SNAT using automap can be used to translate the source address of all outgoing traffic to the same address regardless of which VLAN the traffic is sent through.
[单选题]
Which statement is true about the synchronization process, as performed by the Configuration Utility or by typing b config sync all?
A.The process should always be run from the standby system.
B.The process should always be run from the system with the latest configuration.
C.The two /config/bigip.conf configuration files are synchronized (made identical) each time the process is run.
D.Multiple files, including /config/bigip.conf and /config/bigip_base.conf, are synchronized (made identical) each time the process is run.
[单选题]
Which statement is true concerning cookie persistence?
A.Cookie persistence allows persistence independent of IP addresses.
B.Cookie persistence allows persistence even if the data are encrypted from client to pool member.
C.Cookie persistence uses a cookie that stores the virtual server, pool name, and member IP address in clear text.
D.If a client's browser accepts cookies, cookie persistence will always cause a cookie to be written to the client's file system.
[单选题]
Which statement is true concerning iRule events?
A.All iRule events relate to HTTP processes.
B.All client traffic has data that could be used to trigger iRule events.
C.All iRule events are appropriate at any point in the clientserver communication.
D.If an iRule references an event that doesn't occur during the client's communication, the client's connection will be terminated prematurely.
[单选题]
Which statement is true concerning the default communication between a redundant pair of BIG-IP devices?
A.Communication between the systems cannot be effected by port lockdown settings.
B.Data for both connection and persistence mirroring are shared through the same TCP connection.
C.Regardless of the configuration, some data is communicated between the systems at regular intervals.
D.Connection mirroring data is shared through the serial fail over cable unless network failover is enabled.
[单选题]
Which statement is true concerning a functional iRule?
A.iRules use a proprietary syntax language.
B.iRules must contain at least one event declaration.
C.iRules must contain at least one conditional statement.
D.iRules must contain at least one pool assignment statement.
[单选题]
Which statement is true concerning SSL termination?
A.A virtual server that has both ClientSSL and ServerSSL profiles can still support cookie persistence.
B.Decrypting traffic at the BIG-IP allows the use of iRules for traffic management, but increases the load on the pool member.
C.When any virtual server uses a ClientSSL profile, all SSL traffic sent to the BIG-IP is decrypted before it is forwarded to servers.
D.If a virtual server has both a ClientSSL and ServerSSL profile, the pool members have less SSL processing than if the virtual server had only a ClientSSL profile.
[单选题]
When network failover is enabled, which of the following is true?
A.The failover cable status is ignored. Failover is determined by the network status only.
B.Either a network failure or loss of voltage across the failover cable will cause a failover.
C.A network failure will not cause a failover as long as there is a voltage across the failover cable.
D.The presence or absence of voltage over the fail over cable takes precedence over network failover.
[单选题]
Which action will take place when a failover trigger is detected by the active system?
A.The active device will take the action specified for the failure.
B.The standby device also detects the failure and assumes the active role.
C.The active device will wait for all connections to terminate and then failover.
D.The standby device will begin processing virtual servers that have failed, but the active device will continue servicing the functional virtual servers.
[单选题]
Which statement accurately describes the difference between two loadbalancing modes specified as "member" and "node"?
A.There is no difference; the two terms are referenced for backward compatibility purposes.
B.When the loadbalancing choice references "node", priority group activation is unavailable.
C.Loadbalancing options referencing "nodes" are available only when the pool members are defined for the "any" port.
D.When the loadbalancing choice references "node", the addresses' parameters are used to make the loadbalancing choice rather than the member's parameters.
[单选题]
Which statement describes a typical purpose of iRules?
A.iRules can be used to add individual control characters to an HTTP data stream.
B.iRules can be used to update the timers on monitors as a server load changes.
C.iRules can examine a server response and remove it from a pool if the response is unexpected.
D.iRules can be used to look at client requests and server responses to choose a pool member to select for load balancing
[多选题]
Which two statements are true concerning the default communication between a redundant pair of BIG-IP systems? (Choose two.)
A.Synchronization occurs via a TCP connection using ports 683 and 684.
B.Connection mirroring data is shared via a TCP connection using port 1028.
C.Persistence mirroring data is shared via a TCP connection using port 1028.
D.Connection mirroring data is shared through the serial fail over cable unless network failover is enabled.
[多选题]
Which two statements are true about SNATs? (Choose two.)
A.SNATs are enabled on all VLANs, by default.
B.SNATs can be configured within a Profile definition.
C.SNATs can be configured within a Virtual Server definition.
D.SNAT's are enabled only on the VLAN where origin traffic arrives, by default.
[多选题]
Which two statements are true about NATs? (Choose two.)
A.NATs support UDP, TCP, and ICMP traffic.
B.NATs can be configured with mirroring enabled or disabled.
C.NATs provide a one-to-one mapping between IP addresses.
D.NATs provide a many-to-one mapping between IP addresses.
[单选题]
Assuming other failover settings are at their default state, what would occur if the failover cable were to be disconnected for five seconds and then reconnected?
A.As long as network communication is not lost, no change will occur.
B.Nothing. Failover due to loss of voltage will not occur if the voltage is lost for less than ten seconds.
C.When the cable is disconnected, both systems will become active. When the voltage is restored, unit two will revert to standby mode.
D.When the cable is disconnected, both systems will become active. When the voltage is restored, both systems will maintain active mode.
[单选题]从SROS 12.0 R1开始，Improved FRR failover time in LDP-over-RSVP得到支持，以下关于这个特性的描述中哪一个是错误的？
A.此特性可以应用在LDP-over-RSVP中的启用了FRR的RSVP LSP之上
B. 此特性不能用在IES的spoke-interface上
C. 此特性不能用在Routed-VPLS下的spoke-sdp上
D. 此特性可以用在7750 SR-c4上
[单选题]A saying is a well-known short statement that( ).。
A.people are arguing about
B. expresses an idea most people believe is true and wise
C.was recently published on the media
D.can only be found in novels
[单选题]下列关于statement实例执行sql语句说法错误的是（ ）
A.可用于执行insert、update或者delete语句
B.对于CREATE TABLE 或 DROP TABLE等不操作行的语句，executeUpdate()的返回值总为零
C.对于delete语句的效果是删除表中的一行或者多行，executeUpdate返回值是0或者1
D.UPDATE语句的效果是修改表中零行或多行中的一列或多列。executeUpdate的返回值是一个整数，指示受影响的行数
[单选题]使用数据库的 SQL 命令实现数据库的更新，应利用 Statement 对象的方法（）
A.update()
B.insert()
C.executeUpdate()
D.delete()
