网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
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.
A.process
B.segment
C.program
D.user
B.segment
C.program
D.user
参考答案
参考解析
解析：网络工程师
更多 “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.A.process B.segment C.program D.user ” 相关考题
考题
● With （73） you can communicate in real time with people all around the world.A. E-Mail B. WWW C. FTP D. web chat
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
考题
Generally speaking, the best time to inquire the result of the job interview is in the end of it when all the candidates have finished their interview.()
考题
According to Carol Goman, why seven seconds are all you need to leave a lasting first impression?A.That’s the time your nerves can get controlled.B.That’s the time you need to introduce yourself.C.That’s the time your traits can grab attention.D.That’s the time you need to think about what you say.
考题
● With （73） you can communicate in real time with people all around the world.（73）A. E-Mail B. WWW C. FTP D. web chat
考题
以下说法正确的是?A.C-Plane Latency shows the idle to active transition time the end user may experience to setup a service.B.U-Plane shows the PING round trip time in the end to end communicationC.Peak DL Cell Throughput shows the average throughput the cell can reach in downlink, on the application layer.D.Attach Time shows the connection time for an end user to attach to the network, during which the activation of a default bearer is performe
考题
What does an asset mean on the balance sheet?A．It means all the assets recorded in a period of time.B．It means the sum of all the individual asset amounts added over time.C．It means the individual dollar amount.D．It means accounting information expressed in special terms.
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.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
考题
RTO(恢复时间目标)的英文全称是什么().
A.Retransmission Time-OutB.Recovery Time ObjectiveC.Recovery Point ObjectiveD.Railway Transportation Office
考题
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.acknowledgments
D.datagrams
考题
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
考题
Retransmission time can be made（75） by basing it on the round-trip time （RTT）. Several formulas are used for this purpose.
A.long
B.short
C.fixed
D.dynamic
考题
What does the DB_FLASHBACK_RETENTION_TARGET parameter configure?（）A、An upper limit on how far you can flash back the database, depending on the information in the redo logsB、An upper limit on how far you can flash back the database, depending on the information in the undo tablespaceC、The amount of time for which the flashback data is to be kept in the flash recovery area, provided that there is enough spaceD、The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace, provided that there is enough space
考题
RTO（恢复时间目标）的英文全称是什么（）.A、Retransmission Time-OutB、Recovery Time ObjectiveC、Recovery Point ObjectiveD、Railway Transportation Office
考题
How does NTP help you troubleshoot network problems?（）A、By calculating the time offset from the GPS or atomic clockB、By setting the router clock to the default value if the router can't connect to a time serverC、By setting all network devices to the correct timeD、By setting necessary time date in the timestamp information
考题
A system must be upgraded from AIX 5.1 to 5.2. Which of the following scheduling processes should be performed? （）A、 Schedule enough down time to backup, upgrade and reboot. B、 Backup, upgrade, then schedule enough down time to reboot the system. C、 Backup, then schedule enough down time to upgrade and reboot the system. D、 No scheduling processes are necessary because no down time is required.
考题
A system administrator needs to upgrade the Oracle database from Version 7 to Version 8. Which of the following scheduling concerns should be considered?（）A、Schedule enough down time to backup, upgrade and reboot. B、Backup, upgrade, then schedule enough down time to reboot the system.C、Backup, then schedule enough down time to upgrade and reboot the system. D、There are no scheduling concerns because no down time is required.
考题
In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）A、IP protocolB、IP time-to-liveC、source and destination IP addressD、source and destination MAC addressE、source and destination TCP/UDP port
考题
What does the SCN represent？（） A、 The system change number， which is a point in time relative to transactions within a given database.B、 A number that represents time. Thus， at 1300 hours， the SCN is the same on all databases. C、 The security change number， which represents the security code that is needed to access any database structure.D、 A conversion factor that converts internal database time to external clock time.E、 UTC time in the database，providing a standardized way of tracking time in Oracle.
考题
多选题In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）AIP protocolBIP time-to-liveCsource and destination IP addressDsource and destination MAC addressEsource and destination TCP/UDP port
考题
单选题How does NTP help you troubleshoot network problems?（）A
By calculating the time offset from the GPS or atomic clockB
By setting the router clock to the default value if the router can't connect to a time serverC
By setting all network devices to the correct timeD
By setting necessary time date in the timestamp information
考题
单选题Why can all the astronauts sleep at the same time?A
They have to follow the same timetableB
The radio will take care of the aircraft for them.C
There are enough sleeping bags in the spacecraft.D
There is no need for them to watch over the spacecraft.
考题
单选题What does the SCN represent?（）A
The system change number, which is a point in time relative to transactions within a given database. B
A number that represents time. Thus, at 1300 hours, the SCN is the same on all databases. C
The security change number, which represents the security code that is needed to access any database structure.D
A conversion factor that converts internal database time to external clock time. E
UTC time in the database, providing a standardized way of tracking time in Oracle.
考题
单选题What does the DB_FLASHBACK_RETENTION_TARGET parameter configure？（）A
An upper limit on how far you can flash back the database，depending on the information in the redo logsB
An upper limit on how far you can flash back the database，depending on the information in the undo tablespaceC
The amount of time for which the flashback data is to be kept in the flash recovery area， provided that there is enough spaceD
The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace，provided that there is enough space
考题
单选题After a critical service failure occurs the server keeps rebooting every fifteen minutes not giving anadministrator enough time to troubleshoot the failure. Which of the following does the administrator need to do to allow enough time to work on the system to troubleshoot the problem？（）A
Modify boot.ini fileB
Disable automatic reboot on serviceC
Press F6 at boot upD
Clear cache
考题
单选题The British Royal Society for the Prevention of Accidents (ROSPA) is petitioning to keep the UK on British Summer Time all year round, and they claim that nearly 450 serious accidents occur each year because of the time change.A
all year round, and they claim that nearly 450 serious accidents occur each year because of the time changeB
all throughout the year, and they claim that nearly 450 serious accidents occur each year because of itC
all year, claiming that nearly 450 serious accidents occur each year because of itD
all year round, claiming that nearly 450 serious accidents occur each year because of the time changeE
all year round, and they claim that nearly 450 serious accidents occur each and every year because of the time change
热门标签
最新试卷
