更多"Which of the following statements d"的相关试题:
[多项选择]Which four statements correctly describe functions that are available in SQL? （）
A. INSTR returns the numeric position of a named character.
B. NVL2 returns the first non-null expression in the expression list.
C. TRUNCATE rounds the column, expression, or value to n decimal places.
D. DECODE translates an expression after comparing it to each search value.
E. TRIM trims the heading of trailing characters (or both) from a character string.
F. NVL compares two expressions and returns null if they are equal, or the first expression of they are not equal.
G. NULLIF compares twp expressions and returns null if they are equal, or the first expression if they are not equal.
[多项选择]Which three statements correctly describe the functions and use of constraints? （）
A. Constraints provide data independence.
B. Constraints make complex queries easy.
C. Constraints enforce rules at the view level.
D. Constraints enforce rules at the table level.
E. Constraints prevent the deletion of a table if there are dependencies.
F. Constraints prevent the deletion of an index if there are dependencies.
[多项选择]Which three statements correctly describe the Cisco Validated Designs program? （）(Choose three.)
A. includes three design levels
B. incorporates products and technologies into enterprise, service provider, and commercial systems
C. extends the value of designs through a sustained development plan
D. does not factor customer input design process
E. facilitates faster and more reliable customer deployments
F. incorporates a narrow range of technologies and products
[多项选择]Which two statements accurately describe a broadcast domain?（）
A. Broadcast domains requiere that the participating devices connect to common swithces or hubs
B. Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address
C. Broadcast domains requiere a gateway device such a router
D. Broadcast domains consist of devices that reside on the same VLAN
[多项选择]Which two statements accurately describe a role? （）
A. A role can be given to a maximum of 1000 users.
B. A user can have access to a maximum of 10 roles.
C. A role can have a maximum of 100 privileges contained in it.
D. Privileges are given to a role by using the CREATE ROLE statement.
E. A role is a named group of related privileges that can be granted to the user.
F. A user can have access to several roles, and several users can be assigned the same role.
[单项选择]The following statements describe the project management office (PMO) EXCEPT ______ .
[多项选择]Which of the following describe the process identifier that is used to run OSPF on a router?（）
A. It is logically significant.
B. It is globally significant.
C. It is needed to identify a unique instance of an OSPF database.
D. It is an optional parameter required only if multiple OSPF processes are running on the router.
E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.
[多项选择]Which statements describe the capabilities of the DBMS_NETWORK_ACL_ADMIN package?（）
A. It can be used to allow the access privilege settings for users but not roles.
B. It can be used to allow the access privilege settings for users as well as roles.
C. It can be used to control the time interval for which the access privilege is available to a user.
D. It can be used to selectively restrict the access for each user in a database to different host computers.
E. It can be used to selectively restrict a user's access to different applications in a specific host computer.
[单项选择]Which of the following statements about today's sports movies is true
A. They simply present the joy of athletic competition.
B. Many of them are mythological.
C. Many of them tell stories about the indomitable human spirit.
D. Many of them aimed primarily at children are highly entertainin
[单项选择]Which of the following statements is Kongkiet's advice to graduates
[单项选择]Which of the following statements about ESA's protection efforts is NOT true
[多项选择]Which two statements describe the forwarding table in the Junos OS?（）
A. The forwarding table contains all known routes.
B. The forwarding table stores a subset of information from the routing table.
C. Junos devices use the forwarding table to compare incoming packets against existing entries to determine the next hop.
D. If multiple matches exist, the forwarding table uses the least-specific entry to forward packets toward the destination.
