更多"Which three are true regarding the "的相关试题:
[多项选择]Which three are true regarding the use of outer joins?（）
A. You cannot use IN operator in a condition that involves an outerjoin.
B. You use (+) on both sides of the WHERE condition to perform an outerjoin.
C. You use (*) on both sides of the WHERE condition to perform an outerjoin.
D. You use an outerjoin to see only the rows that do not meet the join condition.
E. In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.
F. You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
[多项选择]Which three statements are true regarding the use of the Database Migration Assistant for Unicode(DMU)?（）
A. A DBA can check specific tables with the DMU
B. The database to be migrated must be opened read-only.
C. The release of the database to be converted can be any release since 9.2.0.8.
D. The DMU can report columns that are too long in the converted characterset.
E. The DMU can report columns that are not represented in the converted characterset.
[多项选择]Which three statements are true regarding the Network Time Protocol (NTP) in JUNOS platforms?（）
A. MD5 authentication is supported.
B. A client always synchronizes to a server even when the difference between the server clock and the local clock differs by a large amount.
C. JUNOS software can provide a primary time reference.
D. The boot-server configuration allows a router to synchronize its clock when it boots up, regardless of the offset between the NTP clock source and its internal clock.
E. It is useful to correlate timestamps on log files and other events for troubleshooting and forensics.
[多项选择]Which three statements are true regarding the candidate configuration?（）
A. The candidate configuration is a temporary configuration that might become the active configuration.
B. A candidate configuration is initially populated with the configuration currently active on the system.
C. Changes to the candidate configuration take effect immediately.
D. The candidate configuration becomes the active configuration after a system reboot.
E. The configure private command allows concurrent editing of a candidate configuration by multiple users.
[多项选择]Which two statements are true regarding the use of NTP clock synchronization?（）
A. The Junos OS supports client, server, and symmetric modes of NTP operation.
B. Synchronized time on all network devices makes log messages more useful for troubleshooting.
C. Authentication methods are not supported.
D. The Junos OS must be used as the primary time reference.
[单项选择]Which of the following is true regarding the use of switches and hubs for network connectivity（）。
A. Switches take less time to process frames than hubs take.
B. Switches do not forward broadcasts.
C. Hubs can filter frames.
D. Using hubs can increase the amount of bandwidth available to hosts.
E. Switches increase the number of collision domains in the network.
[多项选择]Which three statements are correct regarding the CLI command, 12tp destination profile to-NewYork virtual-router vr1 ip address 1.1.1.1 ? （）(Choose three.)
A. LNS IP address is defined.
B. LAC IP address is defined.
C. Virtual-router vr1 sends and receives L2TP traffic.
D. Virtual-router vr1 is the authenticating virtual-router.
E. This command is performed on the LNS.
[单项选择]Which statement is true regarding virtual private catalogs?（）
A. A virtual private catalog owner can create a local stored script, and have read/write access to a global stored script.
B. The virtual private catalog owner cannot create and modify the stored scripts.
C. The set of views and synonyms that make up the virtual private catalog is stored in the schema of the RMAN recovery catalog owner.
D. To perform most of the RMAN operations, the virtual catalog owner must have the SYSDBA or SYSOPER privilege on the target database
[多项选择]Which statements are true regarding table compression? （）(Choose all that apply.)
A. It saves disk space and reduces memory usage.
B. It saves disk space but has no effect on memory usage.
C. It incurs extra CPU overhead during DML as well as direct loading operations.
D. It incurs extra CPU overhead during DML but not direct loading operations.
E. It requires uncompress operation during I/O.
[多项选择]Which statements are true regarding classless routing protocols?（）
A. The use of discontiguous subnets is not allowed
B. The use of variable length subnet masks is permitted
C. RIP v1 is a classless routing protocol
D. IGRP supports classless routing within the same autonomous system
E. RIP v2 supports classless routing
[多项选择]Which statements are true regarding SecureFile LOBs?（）
A. The amount of undo retained is user controlled.
B. SecureFile LOBs can be used only for nonpartitioned tables.
C. Fragmentation is minimized by using variable-sized chunks dynamically.
D. SecureFile encryption allows for random reads and writes of the encrypted data.
E. It automatically detects duplicate LOB data and conserves space by storing only one copy.
[单项选择]Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile LOBs?（）
A. It cannot be done in parallel.
B. It can be done at the table level or partition level.
C. It does not require additional storage because the operation is done online.
D. Local and global indexes are maintained automatically during the operation.
[单项选择]Which option is true regarding the synchronization rule ?（）
A. Do not use or internally advertise a route until the route is lear ned from a source other than BGP.
B. Do not use or advertise a route until the route is learned from a BGP peer.
C. Do not use or advertise routes marked PARTIAL.
D. Wait until a CONFIRM message is received before using routes from BGP neighbors.
[单项选择]Which statement is true regarding the remote route table of a local WX device?（）
A. Remote routes are the compression subnets advertised by remote WX devices.
B. Remote routes include routes for remote hosts or subnets advertised by a WAN router.
C. Remote routes are the routes advertised by remote routers that are more than two hops away.
D. Remote routes are the compression subnets advertised by the local WX device to the remote WX devices.
[单项选择]Which statement is true regarding the Network Time Protocol (NTP) on Junos devices?（）
A. MD5 authentication is supported by the Junos OS
B. Server mode is not supported by the Junos OS
C. The Junos OS can provide a primary time reference
D. The Junos OS does not support the use of a boot server
[多项选择]Which statements are true regarding ISDN channels?（）
A. Each B channel can transmit up to 64 kbps
B. The ISDN B channel carries voice or data
C. The ISDN D channel transmits control information.
D. The D channel transmission rate varies depending on the service used.
E. HDLC or PPP can be used to encapsulate D channel information.
[单项选择]Which statement is true regarding syslog on Junos devices?（）
A. No logging is enabled by default.
B. By default, the information is stored in a file named events.
C. Only the message severity level must be configured.
D. You can configure the router to send log messages to the console.
