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The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）
- A、Either the -a or flag -b may be used, but not both.
- B、If the flag -a is used then the flag -b also must be used.
- C、One of the -a or -b flags must be used, but not both at the same time.
- D、Both the flags may be used together, but neither are mandatory.
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更多 “The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）A、Either the -a or flag -b may be used, but not both.B、If the flag -a is used then the flag -b also must be used.C、One of the -a or -b flags must be used, but not both at the same time.D、Both the flags may be used together, but neither are mandatory.” 相关考题
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You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command:ASMCMD lsdsk -I -d DATAWhich statement is true regarding the outcome of this command?（）A. The command succeeds but it retrieves only the disk names.B. The command produces an error because the ASM instance is down.C. The command succeeds but it shows only the status of the ASM instance.D. The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.
考题
The man page for command shows the following syntax: The man page for command shows the following syntax: command [ －a | －b ] Which of the following statements is true regarding this entry?()
A. Either the -a or flag -b may be used, but not both.B. If the flag -a is used then the flag -b also must be used.C. One of the -a or -b flags must be used, but not both at the same time.D. Both the flags may be used together, but neither are mandatory.
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The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?()
A. The default administrative distance is used.B. The command is used to establish a static route.C. The command is used to configure the router interfaces.D. The command is used to establish a stub network.E. The subnet mask for the source address is 255.255.255.0
考题
The following configuration command was issued on router TK1:ip route 172.16.3.0 255.255.255.0 192.168.2.1.Which of the following statements are true regarding this command?()
A. The command is used to establish a static route.B. The default administrative distance is used.C. The command is used to configure the default route.D. The subnet mask for the source address is 255.255.255.0E. The command is used to establish a stub network
考题
The command frame－relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command()。
A.This command should be executed from the global configuration modeB.The IP address 10.121.16.8 is the local router port used to forward dataC.102 is the remote DLCI that will receive the informationD.This command is required for all Frame Relay configurationsE.The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC
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Which of the following statements are true concerning the command ip sla monitor responder typetcpconnect ipaddress 10.1.1.1 port 23？（Choose all that apply.）（）A、The command will initiate a probe with a destination IP address of 10.1.1.1B、The command is used on the IP SLA responder and the IP SLA sourceC、The command will allow only source address 10.1.1.1 to source probesD、The command will initiate a probe with a destination Telnet portE、The command is used to make the router a responderF、The command will initiate a probe with a source port of 23
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Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）A、 The df command only counts the number of disk blocks and superblocks. B、 The df command ignores space used for inodes, gnodes, and vnodes.C、 The du command does not take into account filesystem metadata. D、 The du command counts indirect blocks and superblocks in its calculations.
考题
Your database is up and running and one of your three control files is accidentally erased. You start RMAN and run the following command： RESTORE CONTROLFILE FROM AUTOBACKUP； Which of the following statements is true？（） A、 The command restores only the missing control file.B、 The command restores all the control files.C、 The command fails because the database is running.D、 This is the correct way to address this problem.E、 This is not the correct way to address this problem.
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Which of the following statements is true regarding the VERSIONS BETWEEN clause？（） A、 The VERSIONS BETWEEN clause may be used in DML statements.B、 The VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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Which of the following statements is TRUE concerning the po column of the vmstat command？（）A、 The sys is high when po is high.B、 The po represents the number of page steals.C、 The low values usually indicate insufficient paging space.D、 The low values usually indicate sufficient memory for the load.
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The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）A、The default administrative distance is used.B、The command is used to establish a static route.C、The command is used to configure the router interfaces.D、The command is used to establish a stub network.E、The subnet mask for the source address is 255.255.255.0
考题
The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。A、This command should be executed from the global configuration modeB、The IP address 10.121.16.8 is the local router port used to forward dataC、102 is the remote DLCI that will receive the informationD、This command is required for all Frame Relay configurationsE、The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC
考题
An administrator attempts to open a web page and sees the following error: 'Error 404: Page not found'. The administrator then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside?（）A、Layer 1B、Layer 4C、Layer 5D、Layer 7
考题
Which of the following has NO effect on controlling the access permissions needed to run the "date" command on the remote machine "Earth" using the following syntax？rsh Earth date（）。A、The local file： /etc/.netrcB、The remote file： ~/ .rhostsC、The securetcpip commandD、The remote file： /etc/hosts.equiv
考题
You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command: ASMCMD lsdsk -I -d DATA Which statement is true regarding the outcome of this command?（）A、The command succeeds but it retrieves only the disk names.B、The command produces an error because the ASM instance is down.C、The command succeeds but it shows only the status of the ASM instance.D、The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.
考题
单选题The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）A
Either the -a or flag -b may be used, but not both.B
If the flag -a is used then the flag -b also must be used.C
One of the -a or -b flags must be used, but not both at the same time.D
Both the flags may be used together, but neither are mandatory.
考题
多选题Your database is up and running and one of your three control files is accidentally erased. You start RMAN and run the following command： RESTORE CONTROLFILE FROM AUTOBACKUP； Which of the following statements is true？（）AThe command restores only the missing control file.BThe command restores all the control files.CThe command fails because the database is running.DThis is the correct way to address this problem.EThis is not the correct way to address this problem.
考题
单选题You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group ，you issued the following ASMCMD command： ASMCMD lsdsk -I -d DATA Which statement is true regarding the outcome of this command？（）A
The command succeeds but it retrieves only the disk names.B
The command produces an error because the ASM instance is down.C
The command succeeds but it shows only the status of the ASM instance.D
The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.
考题
单选题Which of the following has NO effect on controlling the access permissions needed to run the "date" command on the remote machine "Earth" using the following syntax？rsh Earth date（）。A
The local file： /etc/.netrcB
The remote file： ~/ .rhostsC
The securetcpip commandD
The remote file： /etc/hosts.equiv
考题
多选题The following configuration command was issued on router TK1:ip route 172.16.3.0 255.255.255.0 192.168.2.1.Which of the following statements are true regarding this command?（）AThe command is used to establish a static route.BThe default administrative distance is used.CThe command is used to configure the default route.DThe subnet mask for the source address is 255.255.255.0EThe command is used to establish a stub network
考题
单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）A
The sys is high when po is high.B
The po represents the number of page steals.C
The low values usually indicate insufficient paging space.D
The low values usually indicate sufficient memory for the load.
考题
单选题Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）A
The df command only counts the number of disk blocks and superblocks. B
The df command ignores space used for inodes, gnodes, and vnodes.C
The du command does not take into account filesystem metadata. D
The du command counts indirect blocks and superblocks in its calculations.
考题
单选题You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command: ASMCMD lsdsk -I -d DATA Which statement is true regarding the outcome of this command?（）A
The command succeeds but it retrieves only the disk names.B
The command produces an error because the ASM instance is down.C
The command succeeds but it shows only the status of the ASM instance.D
The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.
考题
单选题You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command: ASMCMD lsdsk -I -d DATA Which statement is true regarding the outcome of this command?（）A
The command succeeds but it retrieves only the disk names.B
The command produces an error because the ASM instance is down.C
The command succeeds but it shows only the status of the ASM instance.D
The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.
考题
单选题An administrator attempts to open a web page and sees the following error: 'Error 404: Page not found'. The administrator then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside?（）A
Layer 1B
Layer 4C
Layer 5D
Layer 7
考题
多选题Which of the following statements are true concerning the command ip sla monitor responder typetcpconnect ipaddress 10.1.1.1 port 23？（Choose all that apply.）（）AThe command will initiate a probe with a destination IP address of 10.1.1.1BThe command is used on the IP SLA responder and the IP SLA sourceCThe command will allow only source address 10.1.1.1 to source probesDThe command will initiate a probe with a destination Telnet portEThe command is used to make the router a responderFThe command will initiate a probe with a source port of 23
考题
多选题The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）AThe default administrative distance is used.BThe command is used to establish a static route.CThe command is used to configure the router interfaces.DThe command is used to establish a stub network.EThe subnet mask for the source address is 255.255.255.0
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