A Bluetooth device can be either a master or a slave and any of the devices within a （ ）can be the master. There is only one master and there can be up to （ ） active slave devices at a time within a single network. In addition, a device may be a standby

题目
A Bluetooth device can be either a master or a slave and any of the devices within a （ ）can be the master. There is only one master and there can be up to （ ） active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to （ ） parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to （ ） mode before it can become active. Within a network, all （请作答此空） communications are prohibited.

A.MASTER-TO-MASTER
B.MASTER-TO-SLAVE
C.SLAVE-TO-SLAVE
D.SLAVE-TO-MASTER
相似考题

1.You need to dump the data from the master server and import it into a new slave server.Which mysqldump option can be used when dumping data from the master server in order to include the master server‘s binary log information?（）A.Include-master-infoB.Master-binlogC.Include-log-fileD.Master-data

2.Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master－slave replication. Which two statements are correct?()A.Both technologies guarantee an identical copy of data on the secondary nodeB.Only MySQL can maintain a time-delayed copy of data on the secondary nodeC.Both technologies use the TCP/IP stack as their primary transmission mediumD.DRBD uses shared-disk technology

3.When backing up a replication slave, which three should also be backed up in addition to data?()A.The master.info and relay.info filesB.The relay log filesC.The relay index fileD.Mysql.slave_master_info tableE.Mysql.slave_relay_log_info tableF.Mysql.slave_worker_info table

4.You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns.Which two conditions must be true?()A.Each extra column in the copy with more columns must not have a default valueB.Columns that are common to both versions of the table must be defined in the same order on the master and the slaveC.The slave database cannot have more columns than the master. Only the master database can have more columnsD.Columns that are common to both versions of the table must come first in the table definition, before any additional columns are additional columns are defined on either serverE.The master database cannot have more columns than the slave. Only the slave deatbase can have more columns

参考答案和解析
答案：C
解析：
解析：参考译文
蓝牙设备可以是一个主设备也可以是一个从设备，位于（ ）中的任一设备都可以成为主设备。在一个网络中只有一个主设备，最多有（ ）个激活的从设备。另外，一个设备可以是活跃的从设备或是休眠的从设备，最多有（ ）个休眠的从设备。如果已有最大数量的活跃从设备，那么，一个休眠的从设备就必须等到某活跃从设备切换到（ ）模式后才能被激活。在一个网络内，所有的（请作答此空）通信都是被禁止的。
更多“A Bluetooth device can be either a master or a slave and any of the devices within a （ ）can be the master. There is only one master and there can be up to （ ） active slave devices at a time within a”相关问题

  • 第1题：

    试题（71）～（75）

    A Bluetooth device can be either a master or a slave and any of the devices within a （71）can be the master. There is only one master and there can be up to （72） active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to （73） parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to （74） mode before it can become active. Within a network, all （75） communications are prohibited.

    （71）

    A. Wireless LAN

    B. Wireless MAN

    C. Cellular radio network

    D. Piconet

    （72）

    A. 7

    B. 15

    C. 63

    D. 255

    （73）

    A. 127

    B. 255

    C. 511

    D. 1023

    （74）

    A. master

    B. standby slave

    C. parked slave

    D. active slave

    （75）

    A. master-to-master

    B. master-to-slave

    C. slave-to-slave

    D. slave-to-master


    正确答案：D,A,B,C,C
    参考译文
    蓝牙设备可以是一个主设备也可以是一个从设备，位于（71）中的任一设备都可以成为主设备。在一个网络中只有一个主设备，最多有 （72）个激活的从设备。另外，一个设备可以是活跃的从设备或是休眠的从设备，最多有（73）个休眠的从设备。如果已有最大数量的活跃从设备，那么，一个休眠的从设备就必须等到某活跃从设备切换到（74）模式后才能被激活。在一个网络内，所有的（75）通信都是被禁止的。
    参考答案
    （71）D  （72）A  （73）B  （74）C  （75）C

  • 第2题：

    A Bluetooth device can be either a master or a slave and any of the devices within a （请作答此空）can be the master. There is only one master and there can be up to （ ） active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to （ ） parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to （ ） mode before it can become active. Within a network, all （ ） communications are prohibited.

    A.WIRELESS LAN
    B.WIRELESS MAN
    C.CELLULAR RADIO NETWORK
    D.PICONET

    答案：D
    解析：
    解析：参考译文
    蓝牙设备可以是一个主设备也可以是一个从设备，位于（请作答此空）中的任一设备都可以成为主设备。在一个网络中只有一个主设备，最多有（ ）个激活的从设备。另外，一个设备可以是活跃的从设备或是休眠的从设备，最多有（ ）个休眠的从设备。如果已有最大数量的活跃从设备，那么，一个休眠的从设备就必须等到某活跃从设备切换到（ ）模式后才能被激活。在一个网络内，所有的（ ）通信都是被禁止的。

  • 第3题：

    Which three statements describe the configuration change management feature in DCNM LAN？ （）

    • A、 Switch profiles allow configurations to be synchronized between switches and are supported with any Cisco NX-OS Software managed device.
    • B、 DCNM LAN can archive configurations from devices even if they are not managed by the DCNM server， and the administrator can supply the device management IP address and credentials.
    • C、 You can archive a maximum of 50 configuration versions per managed device.
    • D、 Managed devices must be licensed in DCNM LAN before they can be used with configuration change management.
    • E、 Device-running configuration will be archived only if it differs from the last archived version.

    正确答案:C,D,E

  • 第4题：

    Which of the following statements is false？（）

    • A、There can be more than one master catalog for a store
    • B、A sales catalog is a subset of the master catalog
    • C、The master catalog is the central place for the stores merchandise
    • D、There can be more than one sales catalog for a store
    • E、Multiple stores can share a master catalog

    正确答案:A

  • 第5题：

    Which three statements are true when working with high-availability clusters？（）

    • A、The valid cluster-id range is between 0 and 255.
    • B、JUNOS security devices can belong to more than one cluster if cluster virtualization is enabled.
    • C、If the cluster-id value is set to 0 on a JUNOS security device， the device will not participate in the cluster.
    • D、A reboot is required if the cluster-id or node value is changed.
    • E、JUNOS security devices can belong to one cluster only.

    正确答案:C,D,E

  • 第6题：

    You need to dump the data from the master server and import it into a new slave server. Which mysqldump option can be used when dumping data from the master server in order to include the master server's binary log information?（）

    • A、Include-master-info
    • B、Master-binlog
    • C、Include-log-file
    • D、Master-data

    正确答案:D

  • 第7题：

    单选题
    Which of the following statements is false？（）
    A

    There can be more than one master catalog for a store

    B

    A sales catalog is a subset of the master catalog

    C

    The master catalog is the central place for the stores merchandise

    D

    There can be more than one sales catalog for a store

    E

    Multiple stores can share a master catalog


    正确答案： C
    解析： 暂无解析

  • 第8题：

    多选题
    Which three statements describe the configuration change management feature in DCNM LAN？ （）
    A

    Switch profiles allow configurations to be synchronized between switches and are supported with any Cisco NX-OS Software managed device.

    B

    DCNM LAN can archive configurations from devices even if they are not managed by the DCNM server， and the administrator can supply the device management IP address and credentials.

    C

    You can archive a maximum of 50 configuration versions per managed device.

    D

    Managed devices must be licensed in DCNM LAN before they can be used with configuration change management.

    E

    Device-running configuration will be archived only if it differs from the last archived version.


    正确答案： C,D,E
    解析： 暂无解析

  • 第9题：

    问答题
    Practice 4　　Bluetooth is the newest kid on the technology block, and it holds a lot of promise for the assistive technology industry. Named for a 10th Century King of Denmark who unified the kingdoms of Denmark and Norway, Bluetooth is a shot-range wireless communication specification that promises to improve and increase electronic access to a number of environments by overcoming some of the obstacles typical of current technology. Bluetooth technology will enable devices to communicate and transfer data wirelessly and without the line-of-site issues of infra red technology.　　So how does it work?　　Bluetooth devices search each other out within their given operational range. Unlike devices that are wired together, Bluetooth devices do not have to be aware of the capabilities or properties of the devices to which they will connect beforehand. Bluetooth devices have a built-in mechanism that lets each device identify itself as well as its capabilities as it connects into this new Bluetooth network. This dynamic network does have a controlling device that designates itself as the master for the connection. Its programming and the capabilities necessary for the given task determine whether or not a device can be a master. For example, a cell phone may act as a master device when connecting to a headset, an ATM, or an information kiosk. However, the same cell phone or headset may act as a slave device to the information kiosk, now acting as the master device, broadcasting emergency evacuation information. The cell phone and kiosk can function in either capacity depending on the required function and their programming.

    正确答案： 【参考译文】
    “蓝牙”作为技术家族的新生儿,为辅助性技术作业带来了不少希望。“蓝牙”得名于10世纪一位统一丹麦和挪威王国的丹麦国王,是一种短程无线通信技术的规范。它能逾越当前技术中的某些典型障碍,有望改善并增强各种环境中的电子通信能力。蓝牙技术能使设备进行无线通信并传输数据,并且不受制于红外技术的两点对线限制。
    那么蓝牙是如何工作的呢?
    蓝牙设备是在特定的操作范围内相互寻找的。和接线设备不同,蓝牙设备无须事先知道待联设备的能力或性质。蓝牙设备的内置机制可以使每种设备在接入新的蓝牙网络时亮明自己的身份和能力。这种动态网络倒是有一种控制设备,可以把自己指派为联网中的主设备。它的编程和适合特定任务需要方面的能力是其能否成为主设备的决定因素。例如,一部手机如果连上耳机、自动取款机或问讯台,就可以作为主设备。但问讯台如果作为广播紧急疏散信息的主设备,那部手机或耳机就得作为从设备了。手机和问讯台可以按照所需的功能和编程能力作主设备或从设备。
    解析： 暂无解析

  • 第10题：

    多选题
    Which three statements are true when working with high-availability clusters? (Choose three.)（）
    A

    The valid cluster-id range is between 0 and 255.

    B

    Junos OS security devices can belong to more than one cluster if cluster virtualization is enabled.

    C

    If the cluster-id value is set to 0 on a Junos security device, the device will not participate in the cluster.

    D

    A reboot is required if the cluster-id or node value is changed.

    E

    Junos OS security devices can belong to one cluster only.


    正确答案： C,E
    解析： 暂无解析

  • 第11题：

    多选题
    Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）
    A

    Both technologies guarantee an identical copy of data on the secondary node

    B

    Only MySQL can maintain a time-delayed copy of data on the secondary node

    C

    Both technologies use the TCP/IP stack as their primary transmission medium

    D

    DRBD uses shared-disk technology


    正确答案： C,A
    解析： 暂无解析

  • 第12题：

    单选题
    You need to dump the data from the master server and import it into a new slave server. Which mysqldump option can be used when dumping data from the master server in order to include the master server's binary log information?（）
    A

    Include-master-info

    B

    Master-binlog

    C

    Include-log-file

    D

    Master-data


    正确答案： D
    解析： 暂无解析

  • 第13题：

    A Bluetooth device can be either a master or a slave and any of the devices within a （ ）can be the master. There is only one master and there can be up to （请作答此空） active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to （ ） parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to （ ） mode before it can become active. Within a network, all （ ） communications are prohibited.

    A.7
    B.15
    C.63
    D.255

    答案：A
    解析：
    解析：参考译文
    蓝牙设备可以是一个主设备也可以是一个从设备，位于（ ）中的任一设备都可以成为主设备。在一个网络中只有一个主设备，最多有（请作答此空）个激活的从设备。另外，一个设备可以是活跃的从设备或是休眠的从设备，最多有（ ）个休眠的从设备。如果已有最大数量的活跃从设备，那么，一个休眠的从设备就必须等到某活跃从设备切换到（ ）模式后才能被激活。在一个网络内，所有的（ ）通信都是被禁止的。

  • 第14题：

    A Bluetooth device can be either a master or a slave and any of the devices within a （ ）can be the master. There is only one master and there can be up to （ ） active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to （ ） parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to （请作答此空） mode before it can become active. Within a network, all （ ） communications are prohibited.

    A.MASTER
    B.STANDBY SLAVE
    C.PARKED.SLAVE
    D.ACTIVE SLAVE

    答案：C
    解析：
    解析：参考译文
    蓝牙设备可以是一个主设备也可以是一个从设备，位于（ ）中的任一设备都可以成为主设备。在一个网络中只有一个主设备，最多有（ ）个激活的从设备。另外，一个设备可以是活跃的从设备或是休眠的从设备，最多有（ ）个休眠的从设备。如果已有最大数量的活跃从设备，那么，一个休眠的从设备就必须等到某活跃从设备切换到（请作答此空）模式后才能被激活。在一个网络内，所有的（ ）通信都是被禁止的。

  • 第15题：

    Which of the following options applies to virtual Ethernet devices（）

    • A、A virtual Ethernet adapter can only connect to other partitions within the same system.
    • B、A virtual Ethernet  adapter needs  to be connected to an external VLAN  capable switch to be able to communicate with other partitions on the same system.
    • C、A partition can support an unlimited number of virtual Ethernet devices.
    • D、A virtual Ethernet adapter in the VIO Server that is part of a SEA should not have the "trunk flag" set

    正确答案:A

  • 第16题：

    在给硬盘跳线时，我们常常会看到“Master”和“Slave”标记，它们的含义分别为（）。

    • A、“Master”为主盘、”Slave”为从盘
    • B、“Master”为从盘、”Slave”为从盘
    • C、“Master”为第一IDE接口硬盘、“slave”第二IDE接口硬盘
    • D、”Master”为第二IDE接口硬盘、“Slave”第一IDE接口硬盘

    正确答案:A

  • 第17题：

    Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）

    • A、Both technologies guarantee an identical copy of data on the secondary node
    • B、Only MySQL can maintain a time-delayed copy of data on the secondary node
    • C、Both technologies use the TCP/IP stack as their primary transmission medium
    • D、DRBD uses shared-disk technology

    正确答案:B,C

  • 第18题：

    ROW-based replication has stopped working. You investigate the error log file and find the following entries: 2013-08-27 14:15:47 9056 [ERROR] Slave SQL: Could not execute Delete_rows event on table test.t1; Can't find record in 't1', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log 56_master-bin. 000003, end_log_pos 851, Error_code: 1032 2013-08-27 14:15:47 9056 [warning] Slave: Can't find record in 't1' Error_code: 1032 2013-08-27 14:15:47 9056 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log '56_masterbin. 000003' position 684 Why did you receive this error?（）

    • A、The slave SQL thread does not have DELETE privileges to execute on test.t1 table.s
    • B、The table definition on the slave -litters from the master
    • C、Multi-threaded replication slaves can have temporary errors occurring for cross database updates
    • D、The slave SQL thread attempted to remove a row from the test.t1 table, but the row did not exist

    正确答案:D

  • 第19题：

    多选题
    When backing up a replication slave, which three should also be backed up in addition to data?（）
    A

    The master.info and relay.info files

    B

    The relay log files

    C

    The relay index file

    D

    Mysql.slave_master_info table

    E

    Mysql.slave_relay_log_info table

    F

    Mysql.slave_worker_info table


    正确答案： D,A
    解析： 暂无解析

  • 第20题：

    多选题
    You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns. Which two conditions must be true?（）
    A

    Each extra column in the copy with more columns must not have a default value

    B

    Columns that are common to both versions of the table must be defined in the same order on the master and the slave

    C

    The slave database cannot have more columns than the master. Only the master database can have more columns

    D

    Columns that are common to both versions of the table must come first in the table definition, before any additional columns are additional columns are defined on either server

    E

    The master database cannot have more columns than the slave. Only the slave deatbase can have more columns


    正确答案： B,C
    解析： 暂无解析

  • 第21题：

    单选题
    An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be "rolled forward" to provide all the latest data. The SHOW SLAVE STATUS indicates the following values: RELAY_LOG_FILE =hostname-relay-bin.00004 RELAY_LOG_POS = 1383 Which command set would make the slave current?（）
    A

    STOP SLAVE; CHANGE MASTER TO MASTER_DELAY =0, RELAY_LOG_FILE = 'hostnamerelay- bin.00004' , RELAY_LOG_POS= 1383

    B

    STOP SLAVE; CHANGE MASTER TO RELAY_LOG_FILE = 'hostname-relay-bin.00004', RELAY_LOG_POS = 1383

    C

    STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; START SLAVE

    D

    STOP SLAVE; SET GLOBAL master_delay =0; START SLAVE


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following options applies to virtual Ethernet devices（）
    A

    A virtual Ethernet adapter can only connect to other partitions within the same system.

    B

    A virtual Ethernet  adapter needs  to be connected to an external VLAN  capable switch to be able to communicate with other partitions on the same system.

    C

    A partition can support an unlimited number of virtual Ethernet devices.

    D

    A virtual Ethernet adapter in the VIO Server that is part of a SEA should not have the trunk flag set


    正确答案： C
    解析： 暂无解析

  • 第23题：

    多选题
    Which three statements are true when working with high-availability clusters？（）
    A

    The valid cluster-id range is between 0 and 255.

    B

    JUNOS security devices can belong to more than one cluster if cluster virtualization is enabled.

    C

    If the cluster-id value is set to 0 on a JUNOS security device， the device will not participate in the cluster.

    D

    A reboot is required if the cluster-id or node value is changed.

    E

    JUNOS security devices can belong to one cluster only.


    正确答案： C,A
    解析： 暂无解析

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