Q 1: | Which operation sets LOCK(X) to 0 |
(1) | unlock_item(X) |
(2) | lock_item(X) |
(3) | dlock(X) |
(4) | All |
Correct Answer: unlock_item(X) | |
Q 2: | A.......... is collection of related fields that can be treated as a unit by some application program |
(1) | Field |
(2) | File |
(3) | Database |
(4) | Record |
Correct Answer: Record | |
Q 3: | The syntax of the users query is verified by the |
(1) | Parser |
(2) | The database manager |
(3) | Query optimizer |
(4) | Programmer |
Correct Answer: Parser | |
Q 4: | A foreign key must |
(1) | Be numeric |
(2) | Be unique |
(3) | Be defined in all tables within the database |
(4) | Match the field value of a primary key in a related table |
Correct Answer: Match the field value of a primary key in a related table | |
Q 5: | Which of the following is not a file operation? |
(1) | Find |
(2) | Find next |
(3) | Reset |
(4) | None |
Correct Answer: Reset | |
Q 6: | Which of the following is dense index |
(1) | Primary index |
(2) | Clusters index |
(3) | Secondary index |
(4) | Secondary non key index |
Correct Answer: Secondary index | |
Q 7: | If a file consisting of 50,000 characters takes 40 seconds to send, then the data rate is |
(1) | 1 kbps |
(2) | 1.25 kbps |
(3) | 2 kbps |
(4) | 10 kbps |
Correct Answer: 10 kbps | |
Q 8: | The............. was designed to provide security at the transport layer |
(1) | AH |
(2) | ESP |
(3) | TLS |
(4) | None |
Correct Answer: TLS | |
Q 9: | IPSec defines two protocols:............ and .............. |
(1) | AH:SSP |
(2) | ESP:SSP |
(3) | AH:EH |
(4) | None |
Correct Answer: None | |
Q 10: | The division of a message into segments is a function of the |
(1) | Physical |
(2) | Network |
(3) | Transport |
(4) | Data link |
Correct Answer: Transport | |